Mini Reviews in Medicinal Chemistry - Online First
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48 results
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Botanical Anthelmintics: A Trending Approach to Control Gastrointestinal Diseases in Ruminants
Available online: 30 October 2025More LessAnthelmintic resistance in livestock is an escalating global concern, as synthetic anthelmintics tend to lose their efficacy within 2–10 years of their routine usage. This rapid development of resistance results in significant economic losses and threatens the sustainability of livestock production systems. Gastrointestinal (GI) parasitism, a primary health challenge in ruminants, significantly impairs productivity, fertility, and overall animal welfare. Environmental factors such as high humidity, temperature fluctuations, and poor management practices further predispose animals to certain parasitic infections. In recent years, the search for alternative solutions has led to a growing interest in plant-derived anthelmintics. These botanical compounds, rich in bioactive phytochemicals, offer a promising and eco-friendly approach to controlling parasites by targeting their metabolism, reproduction, and structural integrity. Unlike synthetic drugs, herbal anthelmintics are often associated with fewer side effects, reduced toxicity, and a lower risk of developing possible resistance. Several medicinal plants, such as Azadirachta indica, Allium sativum, Artemisia absinthium, and Fumaria parviflora, have demonstrated potent anthelmintic properties in both in vitro and in vivo studies.
Furthermore, synergistic effects among multiple phytochemicals can enhance efficacy and broaden the spectrum of activity against diverse helminths. This review highlights the efficacy, mechanisms of action, and practical applications of herbal remedies in controlling parasitic infections in ruminants. Emphasizing the integration of natural remedies into sustainable livestock health programs, this approach holds great potential to reduce reliance on synthetic drugs while improving animal health, productivity, and farm profitability.
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Polysaccharide-Based Magnetic Nanoparticles in Brain Cancer: A Review on the Diagnostic and Therapeutic Potential of Ferumoxytol
Authors: Christian Chapa Gonzalez and Pamela Ocampo ValverdeAvailable online: 29 October 2025More LessPolysaccharide-based iron oxide nanoparticles, particularly PSC-iron oxide nanoparticles, have emerged as promising agents for brain cancer diagnosis and therapy. Originally approved for anemia treatment, PSC-iron oxide nanoparticles leverage extended circulation time, biocompatibility, and MRI contrast capabilities to serve dual diagnostic and therapeutic roles. This review highlights its application in brain tumor management, focusing on enhanced MRI visualization of tumor vascularization and macrophage activity compared to gadolinium-based agents, which improve tumor delineation and treatment monitoring. Additionally, PSC-iron oxide nanoparticles exhibit immune-modulating properties that promote anti-tumor macrophage responses. Preclinical evidence supports the synergistic effects of this approach with existing therapies and its potential in hyperthermia applications. Challenges in clinical translation, including dosage optimization and safety, require further investigation. This review highlights the potential of PSC-iron oxide nanoparticles in current findings to advance precision medicine or nanomedicine approaches for brain tumors.
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New Insights from Toxinology in Mammalian Reproduction: A Systematic Review
Available online: 29 October 2025More LessIntroductionAssisted reproductive techniques still have limitations regarding embryonic development and the achievement of clinical pregnancy. Animal venoms represent a biological library with the potential to trigger relevant cellular mechanisms. This study aimed to evaluate, through a literature review and computational screening, the activity of natural venoms and their derivatives on germ cells.
Materials and MethodsA literature review was conducted in PubMed, Embase, Scopus, and Web of Science databases. Inclusion criteria: experimental studies involving oocytes, spermatozoa, or embryos in vitro/in vivo. Exclusion criteria: review articles, letters to the editor, abstracts, books, and studies outside the scope. Extracted data included the type of venom, source species, experimental model, effects, mechanisms, and administration routes.
Methodological quality was assessed using funnel plots, forest plots, and the SYRCLE tool. Computational screening was performed targeting hormonal receptors.
ResultsOf the 584 articles analyzed, only 19 met the eligibility criteria. Among these, 57% investigated snake venom, 16% spider venom, 16% bee venom, and 10% sea anemone/scorpion venom. High heterogeneity was observed in the effects on sperm motility (I2 = 97%) and sperm concentration (I2 = 95%), although a positive effect on concentration was detected. All molecules showed activity on estrogen receptors.
DiscussionThe findings suggest that venoms and their derivatives can modulate gamete functions, with effects influenced by the chemical diversity of toxins and variations in experimental models. Computational screening highlights potential molecular interactions with hormonal pathways, reinforcing their relevance as modulators of reproductive processes.
ConclusionAnimal venoms and their derivatives can exert biological activity on germ cells (oocytes, spermatozoa, and embryos).
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Regulatory T Cells: Subtle and Promising Achilles' Heel of Psoriasis - Atherosclerosis Comorbidity
Authors: Fangshun Tan, Zhifeng Song, Liang Zhao, Ziquan Hu, Sizhuang Huang, Yu Jiang, Yuting Xia and Weixian YangAvailable online: 28 October 2025More LessPsoriasis is a chronic inflammatory skin disorder affecting 2-3% of the global population. It is increasingly recognized for its systemic comorbidities, especially cardiovascular diseases (CVDs). Notably, severe psoriasis independently increases cardiovascular disease (CVD) risk. This elevation occurs beyond conventional risk factors, such as hypertension and diabetes. It suggests that shared inflammatory pathways underlie the association between severe psoriasis and atherosclerotic conditions, like coronary artery disease (CAD). Atherosclerosis, characterized by lipid-laden plaque formation in arterial walls, remains a leading contributor to CVD-related morbidity and mortality. Emerging evidence underscores the interplay of inflammatory cell heterogeneity and immune dysregulation in its pathogenesis, mirroring mechanisms observed in psoriasis. The overlapping systemic inflammation and immune dysfunction in both diseases suggest potential therapeutic synergies. CD4+ regulatory T cells (Tregs), pivotal immunosuppressive modulators, have shown promise in mitigating autoimmune responses, yet their therapeutic exploitation in psoriasis-atherosclerosis comorbidity remains underexplored. This review summarizes current insights into Tregs' roles in psoriasis and atherosclerosis, emphasizing their dual regulatory functions; in psoriasis, Treg dysfunction exacerbates interleukin-17 (IL-17)/23-driven keratinocyte hyperproliferation, while in atherosclerosis, impaired Treg activity permits pro-inflammatory cytokine cascades and foam cell formation. We, herein, highlight emerging approaches to enhance Treg stability and function, such as nanotechnology-based targeting antibodies and traditional Chinese medicine (TCM). By delineating Treg-centric mechanisms across both diseases, this review proposes a paradigm shift toward immunomodulatory therapies addressing psoriasis-atherosclerosis crosstalk, offering novel strategies to alleviate systemic inflammation and cardiovascular burden in psoriatic patients. Further research into Treg heterogeneity and microenvironmental cues may unlock precision therapies for this comorbid axis.
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Imidazo[2,1-b] [1,3,4]thiadiazole: A Versatile Scaffold in Anticancer Drug Discovery - Impact of C-2, C-5, and C-6 Substitutions
Available online: 22 October 2025More LessImidazo[2,1-b][1,3,4]thiadiazoles, a class of fused bicyclic heterocycles, have garnered significant interest in medicinal chemistry due to their diverse biological activities, particularly their anticancer properties. Over recent decades, extensive research has been conducted to explore and enhance their therapeutic potential. This comprehensive review spans six decades of research on the imidazo[2,1-b][1,3,4]thiadiazole scaffold, focusing on structural variations at C-2, C-5, and C-6 position on this scaffold and their implications for anticancer activity. Modifications at these positions have been shown to significantly impact the compound’s efficacy against various cancer cell lines. Continuous exploration and optimization of these substitutions hold promise for the development of novel anticancer therapeutics.
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Research Progress in Mutagenesis Techniques for Aspergillus fumigatus and the Biological Activities of Fumagillin
Authors: Songlin Fu, Pengfei Du and Zili FengAvailable online: 21 October 2025More LessAs the main fermentation product of Aspergillus fumigatus (A. fumigatus), fumagillin is directly related to the gene of A. fumigatus and exhibits a variety of biological activities. However, its clinical application is limited by low yield and toxicity. It is of great significance to improve the yield and safety of fumagillin using A. fumigatus. Currently, research on fumagillin at home and abroad primarily focuses on a single direction and lacks a systematic review of its biosynthesis, structure-activity relationship, and strain modification technology, as well as a comprehensive theoretical framework. This study systematically reviews the biosynthesis mechanism, activity characteristics, and targeted strain modification technology of fumagillin, providing theoretical support for breakthroughs in production, toxicity regulation, and clinical transformation of fumagillin.
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COPD Treatment with Beta 2-Adrenoreceptor Agonists: Medicinal Perspectives and Recent Advances
Authors: Neha Rana, Shalini Sharma, Hridayanand Singh and Sameer RastogiAvailable online: 21 October 2025More LessChronic Obstructive Pulmonary Disease (COPD) is a respiratory condition defined by persistent bronchitis, emphysema, and structural remodelling. The number of cases has risen globally; however, limited viable remedies exist. It is linked to airway blockage, oxidative stress, chronic conditions, inflammation, excessive mucus production, and increased autophagy and cellular senescence. Beta-2 adrenergic receptors (β2-ARs) play a significant role in both the aetiology and management of COPD. Beta-2 agonists (particularly long-acting beta-agonists, or LABAs) are preferable in COPD therapy due to their powerful bronchodilation, rapid onset, prolonged duration, and potential synergistic effects with other medications. They are well-tolerated and effective in improving the quality of life and reducing exacerbations, making them an essential component of COPD treatment. Currently, there are fewer bronchodilators that have been found to be effective. This leads to an exploration of novel, long-acting, and ultra-long-acting drugs for the management of COPD.
This article provides an extensive overview of natural β2 agonists. The current study emphasizes the rational development of lead candidates, including trantinterol, isopropyl, tert-butyl, and heterocyclic ring 2-amino-2-phenylethanol derivatives, 8-(2-amino-1-hydroxyethyl)-6-hydroxy-1,4-benzoxazine-3(4H)-one derivatives (non-substituted, methyl-substituted, dimethyl-substituted), 5-(2-amino-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one analogues, indacaterol analogues, saligenin antedrugs, and saligenin alkoxyalkylphenyl sulfonamide derivatives, accompanied by molecular docking studies. This paper also highlights numerous structure-activity relationship investigations and various novel β2 agonists currently in clinical trials and patents. The present review will significantly aid in fostering the research of COPD.
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Exploring Indole-Based Molecules as Novel Therapeutics for Parkinson’s Disease: A Comprehensive Review
Authors: Ritam Mondal, Deepika Paliwal, Aman Thakur, Saurabh Sharma and Niranjan KaushikAvailable online: 21 October 2025More LessThe primary feature of Parkinson's disease (PD), a progressive neurodegenerative disease that results in both motor and non-motor dysfunctions, is the degeneration of dopaminergic neurons in the substantia nigra. In recent years, indole-based compounds have emerged as promising candidates for developing novel treatments for Parkinson's disease due to their diverse pharmacological properties. Among the significant pathogenic targets against which indole derivatives exhibit potent activity are monoamine oxidase (MAO), NMDA receptors, oxidative stress, and neuroinflammation. This review provides an in-depth analysis of synthetic indole derivatives as potential therapeutic agents for Parkinson’s disease. We explore how these compounds may reduce the pathology associated with Parkinson's disease, identify molecular targets, and analyze the relationships between their structure and activity. We also discuss recent advances in computational and medicinal chemistry that aim to enhance indole structures. Potential challenges and upcoming prospects for the therapeutic application of indole-based therapies are also considered in the review. The ultimate objective of this study is to elucidate the potential applications of synthetic indole derivatives in the development of innovative therapies for Parkinson's disease.
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The Role of 3D Printing in Revolutionizing Pharmaceuticals and Medicine
Authors: Reena Singh, Atif Khurshid Wani, Lukas Peter, Kristina Randlova, Jan Hruska, Chirag Chopra and Kamil KucaAvailable online: 16 October 2025More LessThree-dimensional (3D) printing is a transformative technology that has significantly influenced multiple sectors, including aviation, defence, architecture, and, more recently, healthcare and pharmaceuticals. Despite its growing adoption, there remain gaps in consolidated knowledge regarding its material versatility, regulatory considerations, and real-world implementation in clinical and pharmaceutical settings. Challenges related to biocompatibility, scalability, and the standardization of printed products hinder its full integration into medical practice. Addressing these issues requires a comprehensive understanding of the technological foundation, materials, and evolving applications of 3D printing in medicine. This review aims to provide an in-depth analysis of current advances, limitations, and prospects of 3D printing in healthcare. A systematic literature search was conducted using PubMed, Scopus, Web of Science, and Google Scholar databases, focusing on peer-reviewed articles published between 2010 and 2024. The review highlights key fabrication techniques, material innovations, clinical applications, and integration with emerging technologies, addressing critical challenges and opportunities for advancing personalized medicine.
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The Art and Science of Antidiabetic Medications and Obesity Management
Authors: Shalini K. Sawhney, Anandi Kapri, Gaurav Chaudhary and Bhumika ChauhanAvailable online: 16 October 2025More LessGlucose control remains the primary target in the treatment of both Type 1 and Type 2 diabetes. Glycemia plays a major role in preventing both macrovascular and microvascular complications. Some diabetes medications can also affect body weight. This article describes the various categories of antidiabetic medications and their effects on weight and HbA1c (Hemoglobin A1c) levels in patients with Type 1 and Type 2 diabetes. The weight and glycemic control effects of antidiabetic drugs approved for the management of weight loss are also reviewed in this article. Several types of medications are available that work through different mechanisms to help lower blood glucose levels. The risk of weight gain or weight loss depends on both the medication used and lifestyle factors such as diet and exercise. A reduction in glycosuria is the primary reason for weight gain; however, reducing calorie intake can help minimize this effect. Nevertheless, due to limited access to adequate nutrition education, many people are unable to complement changes in medical therapy with necessary lifestyle adjustments. Some diabetes medications can cause weight loss by getting rid of extra glucose from the body or lowering the amount of glucose our liver makes. Some diabetes medications have little to no effect on weight for most people, and healthcare professionals sometimes refer to these as “weight-neutral” diabetes medications. Certain medications promote weight loss in addition to exerting extra-glycemic and extra-pancreatic effects, which positively impact cardiovascular risk by reducing both mortality and morbidity. Verification and further explanation of the actual mechanisms underlying the life-prolonging effects of these antidiabetic medications are still needed. Their effects on biomarkers that mimic calorie restriction in patients also require confirmation. Additional research should be conducted to clarify the details of lifespan extension. Furthermore, when herbs are administered alongside antidiabetic medicines, they may alter the pharmacokinetic and pharmacodynamic properties of the drugs, rendering them less effective or potentiating their activity and producing adverse effects.
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Natural Product-based Therapies for Inflammatory Bowel Disease: Targeting Key Signaling Pathways
Authors: Shifali Gupta, Sunny Kumar and Diksha SharmaAvailable online: 15 October 2025More LessInflammatory Bowel Disease (IBD), which includes ulcerative colitis and Crohn’s disease, accounts for chronic inflammation in the entire gastrointestinal tract. Conventional treatments, such as amino salicylates, corticosteroids, immunomodulators, and biologics, can all alleviate symptoms; however, they may cause unwanted side effects and are extremely expensive. Most of the time, long-term treatment is also less effective. This review aims to discuss natural products (NPs) with therapeutic potential for IBD, emphasizing flavonoids, terpenoids, polysaccharides, and alkaloids. The compounds have been chosen based on literature reporting anti-inflammatory, antioxidative, and immunomodulatory activities that relate to IBD pathophysiology. Preclinical evidence using in vivo and in vitro models and available clinical data provides the basis for the main pharmacological effects, mechanisms of action, and safety profiles of these NPs. The key molecular pathways that are targeted include the NF-κB, MAPK, and JAK/STAT signaling pathways, as well as the establishment of the gut microbiota and intestinal barrier functions. Standardization, bioavailability, and maximal dosing remain challenging issues even when experimental models show promising results for various NPs. Hence, this review stresses the urgency for well-designed clinical trials and suitable formulation approaches to translate these observations into efficacious and evidence-based therapies. Being a natural remedy option, NPs could be considered complementary or alternative treatments for IBD, demanding further interrogation within an integrated therapeutic paradigm.
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Synthesis and Biological Properties of Isatin-indole Hybrids: A Review
Authors: Gurbir Kaur, Divya Utreja and Shivali SharmaAvailable online: 15 October 2025More LessIntroductionIsatin (1H-indole-2,3-dione) and indole are versatile scaffolds with diverse pharmacological activities, including antimicrobial, anticancer, antiviral, anticonvulsant, anti-inflammatory, and analgesic effects. Isatin-indole hybrids have emerged as multifunctional agents with significant potential in drug discovery.
MethodsA literature survey (2010-2025) across major databases (PubMed, Google Scholar, ACS, etc.) included reports on synthesis, biological evaluation, and structure–activity relationship (SAR) analysis.
ResultsNumerous synthetic approaches, including both conventional and green methods, have yielded a diverse range of isatin-indole derivatives. Many exhibited potent antimicrobial, anticancer, antioxidant, and antitubercular activities, with SAR studies highlighting the impact of substitution patterns on activity and selectivity.
DiscussionThis review aims to provide a comprehensive overview of hybrid molecules in which the isatin core is covalently linked to an indole scaffold. It focuses on their synthesis, diverse biological activities and structure-activity relationship (SAR) studies from 2001 onwards.
ConclusionThis review provides a concise summary of the latest developments and future outlook for the therapeutic potential of isatin-indole hybrids in the development of potent bioactive drugs.
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Carbon Dot Nanoparticle-based Therapeutic Approaches in Major Neurological Disorders
Authors: Mohd Haseeb and Mustafa Aziz HatibogluAvailable online: 08 October 2025More LessNeurological disorders (NDs) are diseases that arise due to deformities mainly in the central nervous system (CNS) and also affect the nerves throughout the human body. NDs, including Alzheimer’s disease (AD), Parkinson′s disease (PD), Multiple Sclerosis (MS), and a variety of brain malignancies, pose a major healthcare challenge and are the main cause of mortality on the global scale. There are very limited treatment options for the majority of the NDs, and the currently available drugs commonly fail to penetrate the BBB and deliver the drug to the target effectively. These challenges have necessitated the advent of new drug delivery methods that can cross the BBB with ease and deliver the drug by accurately targeting the diseased area in a safe and biocompatible manner. Nanoparticle-based drug delivery strategies offer significant advantages in BBB penetration and drug delivery due to their unique properties. Carbon dots, among nanoparticles with a size below 10 nm, are highly biocompatible, fluorescent molecules that offer ease of functionalization, drug conjugation, and effective detection within biological systems. The literature is rich in reviews on the synthesis, characterization, and application of CDs. However, a review specifically focused on the therapeutic potential of CDs in major NDs is missing. This review aims to fill that gap by presenting a detailed account of the carbon dot-based therapeutic approaches in the treatment of major NDs. It briefly discusses the properties of CDs, the main routes of synthesis, major raw materials, and key synthesis parameters that affect their properties, while placing a greater emphasis on their therapeutic potential. The review provides a detailed assessment of literature from the past 15 years on the development and current challenges in the application of CDs as therapeutic and drug delivery agents. Our analysis reveals that limited research has been conducted on CD-based therapeutics in NDs, particularly in MS and brain tumors, where original research is scarce. This review article highlights the major developments in the therapeutic uses of carbon dots in NDs, addresses a critical research gap, and provides a comprehensive overview of various studies related to carbon-dot-based therapeutic approaches for major NDs.
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Breaking Barriers in Breast Cancer: Multi-Targeted Therapeutic Insights
Authors: Apsara Unni, Kalirajan Rajagopal, Krishna Shevate and Gowramma ByranAvailable online: 08 October 2025More LessIntroductionBreast cancer accounts for one of the leading causes of cancer deaths in women globally. Breast cancer is characterized by molecular heterogeneity, and different patients show various responses to therapy. In addition to hormone therapies, there are targeted agents and immunotherapies, but resistance to therapy and recurrence remain a critical clinical problem for patients.
MethodsThis review is aimed at presenting innovations in multi-targeted therapies against breast cancer. It also includes an understanding of the biological mechanisms in pathways of this disease in relation to these agents to address treatment failure. The molecular pathways examined are ER, HER2, EGFR, VEGFR, PI3K/AKT/mTOR, MAPK, PARP, and CDK4/6. Additionally, KAT6A is identified as a molecular target along with new clinical agents that are being reviewed, as well as combinations of strategies using molecular profiling and pathology reports.
ResultsThe major signaling pathways that control breast cancer progression and resistance, and/or sensitivity to therapy. KAT6A, a histone acetylase, was amplified in all of the ER+ breast cancers, suggesting that it can be used as a biomarker for assessing the effectiveness of CDK4/6 inhibitors and is an epigenetic therapeutic target in mammary cell lines. KAT6A is being developed as a selective KAT6 inhibitor; however, it seems most benefits may come from additional inhibitors of Menin, which could help overcome endocrine therapeutic resistance. We also reviewed CDK4/6 Mutations and resistance invariably associated with palbociclib, as well as immunotherapy with antibody-drug conjugate, including trastuzumab deruxtecan (DS-8201).
DiscussionMulti-pathway targeting holds promise to overcome shortcomings of current monotherapies. Due to the complexity of the breast cancer molecular landscape, we must plan for and potentially target resistance mechanisms. The use of KAT6A as a biomarker, along with the use of novel inhibitors, may help inform treatment decisions and improve outcomes. Additionally, this review has identified the need to position the surveillance and addressing of our resistance mechanisms for current therapies, like CDK4/6 inhibitors and antibody-drug conjugates, via rationalized combinations.
ConclusionThe future of breast cancer therapy lies in combination strategies that are developed via molecular profiling and guided by resistance biomarkers. Integrative, biomarker-driven treatment approaches will provide a rationalized and likely more effective means of treating advanced and refractory breast cancer in our effort to improve patient outcomes in a targeted and personalized approach.
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Targeting Chemical-induced Hepatocellular Carcinoma: Ameliorative Potential of Natural Compounds with Focus on Beta-carbolines
Authors: Aloke Saha, Paromita Sarkar, Debjani Mukherjee and Kakali BhadraAvailable online: 08 October 2025More LessIntroductionHepatocellular carcinoma (HCC), the predominant form of primary liver malignancy, remains a major global health concern owing to its aggressive progression, limited therapeutic efficacy, and high fatality rate. A significant proportion of HCC arises from chronic exposure to chemical carcinogens, which trigger hepatocarcinogenesis through oxidative stress, DNA damage, and dysregulation of signalling networks. Natural compounds, particularly beta-carboline alkaloids, are emerging as safer, multi-targeted candidates with promising hepatoprotective and anticancer potential. This review has critically evaluated chemical-induced hepatocarcinogenesis and the therapeutic relevance of beta-carbolines in HCC.
MethodsA systematic literature survey was conducted using PubMed, Scopus, and Web of Science databases, emphasizing studies on chemical-induced HCC, natural hepatoprotective compounds, and beta-carboline derivatives. Mechanistic, pharmacological, and preclinical data were extracted and analyzed.
ResultsCarcinogens, such as diethylnitrosamine (DEN), aflatoxin B1, and carbon tetrachloride (CCl4), promote HCC by inducing oxidative stress, genotoxicity, and perturbations in signalling cascades, including PI3K/AKT, Wnt/β-catenin, and NF-κB. Beta-carbolines display antioxidant, pro-apoptotic, anti-inflammatory, and anti-metastatic activities, with evidence of direct modulation of oncogenic pathways and tumor microenvironment.
DiscussionThe accumulating evidence highlights beta-carbolines as versatile natural agents with multi-faceted mechanisms against chemical-induced hepatocarcinogenesis. Nonetheless, gaps remain in understanding their pharmacokinetics, bioavailability, and long-term safety. Preclinical data are encouraging, but translational studies and clinical validations are limited, underscoring the need for further research.
ConclusionBeta-carboline alkaloids hold significant promise as therapeutic candidates for chemical-induced HCC. Addressing challenges related to safety, bioavailability, and clinical applicability can prove to be crucial for their future development.
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Chalcones as Emerging Antibacterial Scaffolds: A Mini Review
Available online: 06 October 2025More LessThe mounting threat of antimicrobial resistance has intensified the global search for novel antibacterial agents, and chalcones - the aromatic ketones characterized by an α, β-unsaturated carbonyl system has emerged as promising scaffolds against the threat of antimicrobial resistance. This review presents a detailed exploration of chalcones as potent antibacterial agents, emphasizing their structural versatility, mechanisms of action, and therapeutic potential. With a modular backbone that supports diverse substitutions and heterocyclic extensions, chalcones can be easily synthesized and chemically optimized to target a broad spectrum of bacterial pathogens, including multidrug-resistant strains such as MRSA and VRE. Mechanistically, chalcones exert antibacterial effects through multiple pathways, like disrupting bacterial membranes, inhibiting cell wall biosynthesis, interfering with DNA replication via DNA gyrase and topoisomerase IV, and suppressing protein synthesis. Their amphipathic nature and ability to bind critical bacterial enzymes offer an advantage in circumventing classical resistance mechanisms. Structure-activity relationships and computational studies have further elucidated the influence of electron-donating and electron-withdrawing groups, positional isomerism, and heterocyclic integration on antibacterial potency. A review of recent literature underlines the efficacy of chalcone derivatives against Gram-positive and Gram-negative strains, with many compounds demonstrating promising activity, such as compound 85 with MIC 3.4 nM against Ciprofloxacin with MIC 4.7 nM. The review also highlights advancements in green synthesis, QSAR modeling, and molecular docking, which collectively facilitate the rational design of next-generation chalcone-based antibacterials. Altogether, chalcones represent a structurally simple yet biologically robust class of compounds, offering significant promise as adaptable and effective agents in the evolving landscape of antimicrobial therapy.
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Emerging Role of Dendrobium Orchid Plants in Diabetes: Phytochemistry Aspects, SAR, and Therapeutic Potential
Authors: Sanjeev Kumar Sahu, Paranjeet Kaur, Manish Vyas and Divya ChauhanAvailable online: 30 September 2025More LessIntroductionDendrobium belongs to one of the most important genera of the Orchidaceae family, which covers the largest category of flowering plants. More recent traditional medicinal studies have revealed that these orchid plants are used worldwide to treat a variety of illnesses, including those related to the complexion, pulmonary, gastrointestinal, reproductive, and circulatory systems, as well as cancers, pain, and inflammation. Several Dendrobium species have been the subject of phytochemistry and pharmacological research to explore their different medicinal aspects.
Materials and MethodsA comprehensive search through databases (PubMed, Google Scholar, Web of Science, Traditional integrated knowledge resources, local dissertations, and books) was conducted up until November 2024 using key terms such as “Orchid plants, Type 2 diabetes, phytomedicine, natural products, phytoconstituents, phytochemistry, therapeutic potential, and plant-derived antidiabetic agents.”
ResultsIts major phytoconstituents belong to the chemical categories of stilbenoid, glycoside, alkaloids, flavonoids, phenanthrenes, anthocyanins, carotenoids, and bibenzyl derivatives, in which the alkaloids and flavonoids play a most significant role for their biological properties. The flavone C-glycoside and flavanols are commonly found, but highly methylated and glycosylated derivatives of flavonoids are absent in orchid leaves.
DiscussionThe phytochemical composition of Dendrobium, along with its structure-activity relationship of major classes, supports it as a potential source for novel antidiabetic agents through integrating traditional knowledge with medicinal chemistry aspects.
ConclusionA specific Dendrobium orchid plant has a promising role in the effective management of diabetes. In the future, newer, more potent antidiabetic compounds may be isolated and further developed into more effective antidiabetic agents.
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Cardiovascular Effects of Ruthenium Complexes: A Potential Therapeutic Tool in Hypertension and Myocardial Injury
Available online: 29 September 2025More LessRuthenium complexes stand out as an excellent alternative in the field of organometallic chemistry with applications in various areas. Recently, in cardiovascular pharmacology, there has been a growing interest in investigating complexes that modulate the Nitric Oxide (NO) pathway without necessarily and directly donating NO. NO has a proven vasodilatory and cardioprotective effect, and it is known that reduced levels are associated with an increased risk of CardioVascular Diseases (CVD). Studies suggest that ruthenium complexes significantly contribute to the treatment of CVD pathophysiology through different pharmacological mechanisms, including the precise delivery of carbon monoxide (CO) to the molecular target, the release of nitric oxide species under visible and invisible (UV) light, the ability to stimulate the activation of soluble Guanylate Cyclase (sGC) enzyme, participation in the opening of potassium channels, and reduction of cytoplasmic calcium levels. This study aims to conduct a narrative review of the cardiovascular effects of ruthenium complexes, focusing on hypertension and myocardial injury, and demonstrate that metal complexes acting on the NO pathway may have promising targets for the development of therapeutic strategies in CVD treatment.
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Mitochondria as a Therapeutic Target in Metabolic Disorders
Authors: Youde Cai, Fang Gan, Yunzhi Chen, Qiansong He, Wei Chen, Zhongyong Peng and Ling GongAvailable online: 29 September 2025More LessMitochondria, commonly termed the 'cellular powerhouse', produce the majority of cellular adenosine triphosphate (ATP) through oxidative phosphorylation (OXPHOS). In addition to their role in energy synthesis, mitochondria are crucial for maintaining calcium homeostasis, mediating cellular signaling, regulating cell proliferation and apoptosis, and supporting various other physiological processes. In recent years, mitochondria have gained prominence as a critical target for the treatment of metabolic disorders. Research has demonstrated a strong association between mitochondrial dysfunction and the pathogenesis of metabolic diseases, such as insulin resistance, diabetes, metabolic syndrome, cardiovascular diseases, and endocrine tumors. Consequently, understanding the mechanisms of mitochondrial homeostatic imbalance and developing mitochondria-targeted therapeutics hold promise for innovative treatments of metabolic disorder-related diseases. This article seeks to elucidate recent advancements in the understanding of mitochondrial dysfunction's role in metabolic diseases and offers a comprehensive overview of current therapeutic strategies and approaches for addressing this dysfunction.
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Inhibitors of Epigenetic Modulators as Therapeutic Alternatives for Cardiovascular Diseases
Authors: Gustavo A. Barraza, Wendy Rosales and Carlos MeléndezAvailable online: 24 September 2025More LessCardiovascular diseases are the leading cause of death worldwide. Despite the development of a wide variety of drugs, treatment regimens do not seem to be able to prevent the progression of these pathologies. In recent years, the study of epigenetic mechanisms has led to the discovery of new targets that may facilitate the search for therapeutic alternatives. Furthermore, it has been demonstrated that the onset of cardiovascular diseases is associated with changes in DNA methylation status and altered histone modification patterns. Therefore, the use of natural and synthetic inhibitors of epigenetic modulators, such as DNA methyltransferases (DNMTs), is likely to constitute a new approach in the therapy of cardiovascular diseases. In this review article, we discuss the mechanisms of action of inhibitors of epigenetic modulators and their applications in the treatment of cardiovascular diseases.
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Biomimetic Magnetic Nanovesicles (“Magnetic Liposomes”): Current Synthesis Approaches and Biomedical Applications
Available online: 24 September 2025More LessMagnetic liposomes (MLs) are hybrid nanovesicles that combine the biocompatibility of lipid bilayers with the remote controllability of superparamagnetic nanoparticles. To the best of our knowledge, no prior review has systematically covered the literature on MLs published between 2020 and 2024, with a special focus on continuous‐flow microfluidic synthesis. Here, we consolidate and critically assess recent advances in MLs’ structural design, highlight remaining challenges, and propose future directions for clinical translation. MLs, as one of the types of biomimetic magnetic nanovesicles, are considered promising nanocarriers for biomedical applications. These applications include active drug targeting to specific tissues, magnetic resonance imaging, magnetic hyperthermia, controlled release, and other applications. This review aims to comprehensively classify current knowledge on the main structural types of MLs and their traditional (batch) and modern (continuous‐flow) synthesis methods. The current advantages and potential challenges of microfluidics-based MLs synthesis are described. Detailed information on the variants of microfluidics-based techniques is provided, along with examples and potential biomedical applications. For the main aspects of MLs synthesis and applications, schematic illustrations are provided. Finally, an outlook on the perspectives of further MLs development and applications is presented.
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Fruitful Interventions: A Narrative Review Addressing the Emerging Role of Antioxidant Fruits in Combating IBD-Driven Colorectal Cancer
Available online: 23 September 2025More LessIndividuals diagnosed with inflammatory bowel disease (IBD) face a significantly heightened risk of developing colorectal cancer (CRC), primarily due to persistent intestinal inflammation that fosters neoplastic transformations across the colon. This narrative review delves into the potential of certain fruits, such as black raspberries, Amazonian açaí, apples, grapes, cocoa, Ziziphus jujuba, and Moringa oleifera, in mitigating IBD-induced CRC. Preclinical studies indicate that these fruits possess anti-inflammatory and antioxidant properties that may disrupt carcinogenic pathways. Notably, black raspberries have demonstrated the ability to modulate epigenetic markers by demethylating tumor suppressor genes and inhibiting DNA methyltransferases (DNMT), like DNMT1 and DNMT3B. This epigenetic modulation influences the Wnt signaling pathway, crucial in CRC development, and affects cellular processes, such as proliferation, apoptosis, and angiogenesis. Animal models further support these findings, showing that black raspberries can suppress β-catenin signaling, reduce chronic inflammation, and decrease tumor incidence. This comprehensive analysis underscores the promising role of specific fruits in CRC prevention among IBD patients and highlights the need for further research to translate these findings into clinical applications, potentially benefiting both public health and the nutraceutical industry.
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Antimicrobial Activity of Naturally Occurring and Semi-Synthetic Chlorinated Compounds
Authors: Kowsar Marefat, Mina Saeedi and Mahnaz KhanaviAvailable online: 19 September 2025More LessIntroduction/ObjectiveAntimicrobial resistance (AMR) has become a global controversial issue, making conventional treatments less effective. Hence, the design and development of new and efficient antimicrobial agents are on the researchers’ agenda to reduce death rates and health care costs. In this regard, chlorine-containing compounds have been the center of attention. This review highlights the antimicrobial potential of chlorine-containing natural and semi-synthetic compounds, aiming to identify versatile candidates effective against microorganisms.
MethodsThe literature was comprehensively surveyed using Google Scholar, Web of Science, Scopus, and PubMed, focusing on studies published since 2016, focusing on the antimicrobial properties of natural and semi-synthetic chlorinated compounds.
ResultsNatural chlorinated compounds have shown remarkable antimicrobial activity, generally more potent than their semi-synthetic counterparts.
DiscussionThe strong activity against resistant strains like MRSA underlines their therapeutic potential in addressing pressing clinical challenges. Nature-derived scaffolds serve as a promising foundation for the development of novel antimicrobial agents.
ConclusionSeveral naturally occurring compounds have proven more effective than their semi-synthetic derivatives, making them attractive candidates for addressing the growing threat of AMR.
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Therapeutic Potential of Underexplored Phytoconstituents Targeting Molecular Pathways in Breast Cancer Subtypes
Available online: 17 September 2025More LessBreast cancer is a heterogeneous disease consisting of several molecular subtypes, such as Hormone Receptor-positive (HR+), Human Epidermal Growth Factor Receptor 2-positive (HER2+), and Triple-Negative Breast Cancer (TNBC). Although a lot of success has been realized in targeted agents, there still remain significant problems, including resistance to drugs, toxicity related to treatment, and few therapeutic possibilities for aggressive subtypes. Confronting such limitations requires complementary treatment approaches with better efficacy and safety profiles. Phytoconstituents from natural sources have emerged as potential therapeutic agents due to their multitargeting activity, good safety profile, and capacity to evade drug resistance. These bioactive molecules, such as flavonoids, alkaloids, terpenoids, and saponins, possess various mechanisms of action, including modulation of cell cycle regulators, induction of apoptosis, inhibition of angiogenesis, suppression of metastasis, and regulation of critical oncogenic signaling pathways. Their interference with several cancer pathways gives them a holistic strategy for breast cancer therapy. This review offers an in-depth examination of new phytoconstituents that target the molecular basis of various subtypes of breast cancer. It also highlights their scope for integration into traditional paradigms either as monotherapy or in combination with current therapies to increase therapeutic impact with the least adverse effects. Through the clarification of their mechanisms of action and therapeutic advantages, this review promotes the ongoing pursuit of phytoconstituents as potential contenders in contemporary oncology, providing novel targets for the control of breast cancer and enhanced patient care.
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Revolutionizing Diabetes Treatment with Insulin-loaded Nanoparticles
Available online: 16 September 2025More LessDiabetes mellitus is a disease characterised by elevated blood glucose levels, with its major subtypes being type 1 (immune-mediated) and type 2 (lifestyle-related) diabetes. Medical treatment for diabetes requires patients to perform subcutaneous insulin injections since oral insulin faces problems with gastric breakdown. Nano-sized insulin delivery systems show great potential for oral usage because they protect the insulin molecule from enzymatic breakdown and enhance its absorption rates through the digestive system. The review article investigates the utilisation of insulin-loaded nanoparticles as an advanced treatment method for diabetes management. The data evaluates insulin-loaded nanoparticles for their impact on stability enhancement as well as their protective functions and improved oral bioavailability potential. The research reviewed the relevant literature on insulin-loaded nanoparticles as a treatment method for diabetes. The research articles were obtained through databases including ScienceDirect, Scopus, PubMed and Google Scholar. Studies about incorporating insulin with nanoparticles and their bioavailability features and therapeutic potential were analysed. The review demonstrates that insulin-loaded nanoparticles markedly improve insulin stability, bioavailability, and absorption, overcoming the challenges associated with oral insulin delivery. Diverse nanoparticle compositions, encompassing polymeric and lipid-based carriers, exhibit encouraging outcomes in preclinical investigations. Despite existing limitations in large-scale production and clinical application, nanotechnology presents a revolutionary method for diabetes treatment. Additional research and clinical studies are necessary to validate insulin-loaded nanoparticles as a feasible, patient-friendly substitute for traditional insulin therapy.
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The Roles, Mechanisms, and Clinical Significance of Long Non-coding RNA MSC-AS1 in Cancer
Authors: Jingjie Yang, Fan Peng, Kexing Liu, Haodong He, Haoran Liu, Li Li, Qianqian Yao, Ning Yang, Gang Zhou and Chengfu YuanAvailable online: 15 September 2025More LessMusculin antisense RNA 1 (MSC-AS1) is a long non-coding RNA (lncRNA) located on human chromosome 8q13.3-q21.11. Emerging evidence shows that MSC-AS1 is either upregulated or downregulated in 16 types of human cancers, and is associated with clinical pathological features and patient prognosis in 12 of these cancers. It is widely believed that the dysregulation of MSC-AS1 contributes to tumor cell growth, metastasis, epithelial-mesenchymal transition (EMT) progression, metabolic reprogramming, and drug resistance formation. Mechanistically, MSC-AS1 can act as a competing endogenous RNA (ceRNA) by sponging 14 miRNAs to affect the expression of downstream mRNAs, or it may directly interact with proteins, both of which contribute to the activation of the PI3K/AKT and Wnt/β-catenin signaling pathways. Our review study suggests that MSC-AS1 is a potential cancer biomarker and therapeutic target. In summary, we have explained the research on MSC-AS1 related to cancer treatment, its expression patterns, functional characteristics, and molecular mechanisms in malignant tumors. We have further emphasized its significance in clinical prognosis and therapeutic applications.
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Improving Drug Solubility with Polymer-Drug Conjugation: Recent Insights
Authors: Sourav Kumar Prusty, Kumari Rani Bhakat, Akash Padhy, Manoj Kumar Lenka and Rasmita DashAvailable online: 15 September 2025More LessPoor water solubility limits the bioavailability, absorption, and efficacy of many drugs, especially BCS class II and IV compounds. Polymeric drug conjugation (PDC) is a promising strategy to overcome these challenges by chemically linking hydrophobic drugs with hydrophilic polymers via covalent or non-covalent bonds. This enhances aqueous solubility, stability, and bioavailability, leading to improved therapeutic effects and reduced adverse reactions. PDC prolongs drug circulation, ensuring consistent absorption at lower doses. This article focuses on how this strategy can address solubility issues and enhance drug delivery effectiveness, it also brings spotlight to investigate current advancements in the field of polymer drug conjugates. Following a structured approach guided by PRISMA, relevant research on polymeric conjugation strategies were identified by screening literature from PubMed, Scopus, and Google Scholar etc. Key polymers such as PEG, PLGA, HPMA, chitosan, and dextran etc were investigated for their solubility-enhancing capability. Clinical studies validate its success, making it a novel approach to addressing solubility related pharmaceutical challenges.
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Quinoxalines in Oral Health: From Antimicrobials to Biomaterials
Authors: Marc Montana and Patrice VanelleAvailable online: 15 September 2025More LessQuinoxalines are a versatile class of nitrogen-containing heterocyclic compounds that have been extensively studied for their diverse pharmacological properties. Recently, interest has grown in exploring quinoxaline derivatives for applications in oral health, driven by their unique mechanisms of action and potential to address major challenges in dental medicine. This review comprehensively examines the recent progress in the development of quinoxaline-based compounds targeting oral pathogens responsible for dental caries, periodontitis, and other biofilm-associated diseases. Beyond their antimicrobial effects, quinoxalines also exhibit anti-inflammatory properties by modulating key molecular pathways implicated in periodontal inflammation, thereby offering a dual therapeutic potential. Moreover, their incorporation as functional additives in restorative dental materials is emerging, aiming to enhance antimicrobial efficacy and improve material performance. Despite promising in vitro and in vivo data, several critical barriers must be overcome before clinical translation can be realized. These include ensuring biocompatibility with oral tissues, achieving formulation stability under the dynamic conditions within the oral environment, and optimizing delivery systems to ensure targeted, sustained release at the site of action. This review highlights current strategies to address these challenges and proposes directions for future research, including advanced formulation technologies and comprehensive preclinical evaluations. Ultimately, quinoxaline derivatives hold significant promise as multifunctional agents capable of integrating antimicrobial, anti-inflammatory, and biomaterial-enhancing properties to improve oral health outcomes. This synthesis of current knowledge supports continued investigation into quinoxalines as novel therapeutics and functional components for dental care.
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Extraction, Physicochemical Properties, and Biomedical Applications of Locust Bean Gum: A Comprehensive Review
Authors: Deepak Kumar, Rishabha Malviya, Sathvik Belagodu Sridhar, Javedh Shareef and Tarun WadhwaAvailable online: 12 September 2025More LessLocust bean gum (LBG), a naturally derived polysaccharide from Ceratonia siliqua, exhibits high biocompatibility, degradability, and gel-forming capability, making it a potential contender for pharmaceutical applications. It has wide applications in drug delivery as well as wound healing because of its physicochemical characteristics, including mucoadhesive properties, swelling capability, and controlled release. This study explores the role of LBG-based composites in controlled drug release and wound dressing applications. LBG has been broadly used for drug delivery by oral, transdermal, and mucosal routes. Its mucoadhesive properties increase drug uptake, while gelation facilitates controlled and sustained drug release. Crosslinking and carboxymethylation have been used to improve its functional properties, and it has been utilised in targeted and responsive delivery systems. LBG-based hydrogels and films have also been developed for wound healing and have shown moisture retention, antimicrobial activity, and biocompatibility. Smart wound dressings with LBG and bioactive agents have enabled real-time infection monitoring with enhanced tissue regeneration. Studies have proven that LBG can improve the mechanical strength and drug-loading capacity of composite materials and is hence a potential candidate for next-generation biomedical applications. LBG-based composites hold significant potential in pharmaceuticals, particularly in wound healing and drug delivery.
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Optical Biosensors: A Comprehensive Review of Their Applications in Photoplethysmography, Environmental Monitoring, and Medical Diagnostics
Available online: 11 September 2025More LessMedical diagnostics, environmental monitoring, and food safety are key domains being transformed by the ongoing revolution in optical biosensors. These light sensors are highly sensitive and specific for detecting specific biological interactions, allowing for real-time, label-free detection. Biorecognition elements (such as enzymes, antibodies, or nucleic acids), following interaction with the target analyte, generate optical signals based on the same key principles as optical biosensors. Surface plasmon resonance (SPR), fluorescence-based sensors, and fiber optic sensors offer a wide range of biosensors capable of detecting a broad spectrum of biological and chemical agents at trace concentrations. Diagnostic capability has become efficient and rapid with advances in nanotechnology and microelectronics, particularly in nanopores. Monitoring of cardiovascular health using wearable optical biosensors, such as photoplethysmography (PPG), is a non-invasive method. It has also been recently improved to better track heart rate and blood pressure, as well as evaluate mental and vascular health. Wearable optical biosensors support technologies, such as continuous monitoring and early detection of anomalies, which help in personalized healthcare. Optical biosensors are particularly suitable for detecting pathogens, biomarkers, and pollutants in clinical settings, as well as for environmental monitoring and food safety assessments. These applications range from biopharmaceuticals to biotechnology and personalized care, which are used to monitor diseases, discover drugs, and detect pathogens. Despite progress, matrix interference with the sample matrix, sensor stability, and miniaturization remain challenges to be overcome. However, with future progress in materials science, nanotechnology, and increased integration with the Internet of Things (IoT), the potential for optical biosensors will continue to rise as portable, cost-effective, real-time data-analyzing diagnostic tools that expand accessibility to those in underserved regions. Developed using optical and electrochemical approaches, the biosensors reviewed in this article are discussed in terms of their principles, types, applications, and prospects, including their roles in healthcare and environmental sectors.
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Homometallic Polynuclear Rhodium Complexes in Anticancer Drug Development
Available online: 11 September 2025More LessAfter cisplatin discovery in anticancer treatment, many metals have been studied as potential antitumor agents, especially group IXB elements, such as rhodium, iridium, palladium, and their complexes. The design of polymetallic complexes containing different metal centers with diverse pharmacological characteristics has raised considerable interest in the field of drug development research. This approach aims to exploit the synergistic effect of distinct metal cations, which could contribute to enhancing biological activity. The basic rationale is that the combination of two or more metal ions with the same or different cytotoxic profiles and modes of action may significantly modify the anticancer potential of the resulting complexes, thus enlarging the biological targets and improving the biodistribution properties compared to mononuclear fragments. Among the reported multinuclear anticancer complexes, rhodium-based compounds have attracted considerable attention despite their relatively limited history. The current article presents the results obtained in the field of rhodium complexes, highlighting the recent advances of polynuclear homometallic rhodium compounds as promising antineoplastic candidates. While widespread studies have focused on mononuclear rhodium complexes, the potential of polynuclear Rh-based compounds with structural and functional diversity remains rather understudied. This low interest is most likely due to the typical kinetic inertness and chemical stability of most rhodium complex compounds. These complexes have garnered considerable attention due to their enhanced cytotoxic effects, intracellular distribution, and selectivity, thereby holding promising prospects for the further development of multifunctional drug candidates with desired activity. Recent developments of polynuclear rhodium-based antitumor agents have been summarized in the current review.
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An Overview of the Association of the Urinary Tract Microbiome with Various Diseases and Implications for Therapeutics
Authors: Calvin R. Wei, Zarrin Basharat, Muhammad Osama, Karmen Mah, Yasir Waheed and Syed Shah HassanAvailable online: 10 September 2025More LessThe urinary tract (UT) was once considered sterile, but now it is known to host a diverse community of microorganisms, known as the urinary microbiome. The collective microbiota is made up of bacteria, fungi, and viruses, necessary for maintaining UT health. This review aims to synthesize current knowledge on the urinary microbiome and clarify its emerging role as a key modulator in both health and a wide spectrum of UT disorders. Dysbiosis within this microbial community has been linked to conditions such as urinary tract infections (UTIs), interstitial cystitis/bladder pain syndrome (IC/BPS), urinary incontinence, urolithiasis, benign prostatic hyperplasia (BPH), and even urinary tract malignancies. Advances in methodologies, such as expanded quantitative urine culture and metagenomics, have provided valuable insights into microbial variability influenced by factors like age, sex, and disease conditions. Additionally, this review explores the therapeutic potential of probiotics and bacteriophages, as well as the association of urinary microbiota with autoimmune and inflammatory conditions. Special emphasis is placed on translational relevance, including emerging microbiome-targeted therapies and personalized interventions for UTIs. Ethical considerations allied with UT microbiome research, such as data privacy, informed consent, and equitable access to emerging therapies, are also discussed. Despite substantial progress, challenges such as methodological heterogeneity, a lack of longitudinal data, and unresolved causal relationships persist. The study concludes by identifying key knowledge gaps and proposing future directions for multidisciplinary research to advance therapeutic innovation in urological health.
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Recent Development of CXCR4-Targeted Nuclear Medicine Research in Adrenocortical Tumors
Authors: Ming Wang, Qiusong Chen, Shaobo Yao and Haonan YuAvailable online: 08 September 2025More LessThe diagnosis of adrenocortical tumors remains clinically challenging due to overlapping morphological and functional features between benign, malignant, and hormonally active lesions. Malignant and functional tumors are frequently associated with poor prognosis. Traditional morphological imaging methods, such as CT and MRI, cannot reliably distinguish lesion types. Recent evidence suggests that molecular imaging targeting C-X-C motif chemokine receptor 4 (CXCR4), a biomarker overexpressed in functional adenomas and adrenocortical carcinomas (ACC), offers enhanced diagnostic precision. For instance, 68Ga-pentixafor, a CXCR4-targeted radiotracer, demonstrates high accuracy in distinguishing functional from nonfunctional lesions and unilateral from bilateral subtypes in primary aldosteronism. Depending on the level of tracer uptake, it may also be possible to guide therapeutic decisions and assess treatment response. For Cushing's syndrome, particularly cortisol-producing adenomas, CXCR4 imaging facilitates the localization of adrenal lesions, reducing dependency on invasive techniques. In ACC, overexpression of CXCR4 enables metastasis detection, and its complementary use with 18F-FDG PET/CT improves lesion detection. Furthermore, the theranostic agent 177Lu/90Y-Pentixather demonstrates considerable promise for CXCR4-directed Endoradiotherapy (ERT) in advanced ACC. This review aimed to summarize the advancements of CXCR4-targeted molecular imaging in adrenocortical tumors and ERT in ACC.
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Current Developments in the Pharmacological Activities and Synthesis of Carbazole Derivatives
Authors: Gersy Marie Joelle Oba, Rakesh Sahu, Kamal Shah, Deepika Paliwal, Ashok Kumar Sah and Aman ThakurAvailable online: 02 September 2025More LessaThe growing prevalence of multidrug resistance and its detrimental effects pose a significant threat to public health, which is one reason for the current interest in the introduction of novel agents. To combat this adverse effect and drug resistance, numerous drugs have been developed over time, and their safety is still being evaluated; derivatives or medications based on the carbazole moiety are one of the key contributors. Therefore, this review explores carbazole-based derivatives as possible drugs to treat Alzheimer's, diabetes, inflammation, cancer, and many more, along with their synthetic schemes, SARs, and activity. Some of the carbazole-based drugs available in the market and under clinical trials are also tabulated. By integrating this insight, describe how these compounds are being reinvented as targeted therapeutic agents. This comprehensive analysis is designed to guide researchers in developing next-generation drugs to address various challenges and leverage the unique pharmacological properties of carbazole-derived drugs.
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The Use of Artificial Intelligence in the Formulation of Effervescent Tablets: A Review
Available online: 01 September 2025More LessArtificial Intelligence (AI) is emerging as a valuable tool in pharmaceutical formulations, including the development of effervescent tablets (ETs). This review highlights how AI techniques are being explored to support ET formulation designs, optimize component ratios, predict disintegration and dissolution behavior, and control reactions through artificial neural networks, support vector machines, and machine learning. These techniques have been applied in recent studies to enhance stability, improve disintegration times, and flavor masking. Computational fluid dynamics simulations of effervescence and dissolution are underexplored for ETs. Data-driven approaches, like response surface modeling, require ingredient concentrations, tablet properties, consumer preferences, and predictive analytics for optimization. However, limited comprehensive datasets, complex reactions, environmental sensitivities, and ethical/regulatory considerations pose challenges. Overcoming these obstacles, as identified in the current literature, could enable AI to innovate ET development and personalization.
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Triterpenoid Compounds and Their Derivatives: Emerging Pharmacological Agents for Arthritis Treatment
Authors: Zihan Chen, Ka Fai Leong, Yuhan Xie, Alessandra Gianoncelli, Giovanni Ribaudo and Paolo CoghiAvailable online: 29 August 2025More LessArthritis has become a global public health issue due to its diverse risk factors and high prevalence. Therefore, there is a demand for more effective drugs to improve these situations. Triterpenoids have attracted the interest of researchers because of their broad spectrum of biological activities and pharmacological effects. The aim of this review is to provide an updated overview of the potential of triterpenoids and of their derivatives as therapeutic agents against Rheumatoid Arthritis (RA) and Osteoarthritis (OA), based on their anti-inflammatory and immunomodulatory properties. This review discusses the chemical and pharmacological properties of triterpenoids and their derivatives, focusing on the different mechanisms by which this class of compounds achieves therapeutic benefits in arthritis. The conclusions indicate that triterpenoids and their derivatives have a favorable potential therapeutic effect on arthritis.
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Coumarin-based Strategies for Breast Cancer: A Multifaceted Perspective
Authors: Yash Sharma, Sourav Kalra, Ankit Vashisht and Rajiv SharmaAvailable online: 27 August 2025More LessBreast cancer remains the most prevalent cancer among women worldwide, with increasing toxicity and resistance to current therapies posing a serious challenge to healthcare systems. The urgent demand for more effective and safer treatments has highlighted coumarin, a naturally occurring compound with a unique ring structure, due to its promising potential in combating breast cancer. Over the past three decades, numerous synthetic coumarin derivatives have been developed to enhance therapeutic efficacy. This review provides a comprehensive analysis of 18 reported coumarin-based compounds, focusing on their design strategies, mechanisms of action, and structure-activity relationships (SAR). Molecular docking studies targeting key enzymes, including tyrosine kinases, topoisomerases, and serine/threonine kinases, were examined to evaluate binding affinities and interaction patterns. Substitutions at the 3- and 6-positions of the coumarin scaffold were found to impact target binding significantly. Critical interactions, including hydrogen bonding, van der Waals forces, and hydrophobic contacts, were correlated with experimental anticancer activities, offering valuable insights into ligand-protein complex stabilization. Overall, the analysis underscores the potential of coumarin derivatives as promising leads for the rational design of novel anticancer agents with improved efficacy and selectivity.
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Bruton’s Tyrosine Kinase Inhibitors: A Versatile Therapeutic Approach for Cancer, Autoimmune Disorders, GVHD and COVID-19
Authors: Swati Paliwal, Uma Agarwal and Rajiv Kumar TonkAvailable online: 27 August 2025More LessRecent trends have shown the development of various medicinally important compounds that specifically target B-cell receptor (BCR) pathways at various segments that have a major role in Bruton’s tyrosine kinase (BTK) receptor, which belongs to the family of kinases. These kinases are usually situated close to the cell membrane due to which they participate in upstream processing of BCR signalling. Various molecules have been potentialized to target these signalling pathways of these kinase receptors in order to achieve a pharmacological effect. Given the central role of BTK in immunity, BTK inhibition represents a promising therapeutic approach for the treatment of multiple diseases. BTK inhibitors work by regulating B-cell receptor signalling along with inflammatory pathways and immune cell interactions, offering more advanced treatment options compared to traditional therapies. In addition to BTK inhibitors, an extensive knowledge of the pharmacological mechanisms underlying the blockage of these receptors is necessary in order to more accurately forecast when and where a patient could need combination therapy or just one medication. Efforts have been made to facilitate translational discoveries, drug re-purposing concepts, and further development of precision medicine products. This thorough literature study has focused on studies published until June 2025.
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Synthesis of Phenothiazine Derivatives and their Diverse Biological Activities: A Review
Authors: Prabhjot Kaur, Divya Utreja and Shivali SharmaAvailable online: 25 August 2025More LessThe increasing resistance of causative agents to current treatments has made infectious disease management more challenging. Heterocyclic compounds have garnered considerable attention due to their numerous significant medical and biological applications. Research interest in heterocyclic compounds is rapidly increasing due to extensive synthetic studies and their functional utility. Phenothiazine (PTZ), an organic thiazine compound, has a broad range of biological activities, including antimicrobial, antimalarial, antipsychotic, anti-inflammatory, and antiemetic effects. Additionally, modifications to the phenothiazine structure have enhanced its efficacy, making it a potential candidate for addressing drug-resistant infections. This review examines recent synthesis methods, including catalytic and microwave-assisted techniques, which have expanded the applications of phenothiazine derivatives. The article also discusses structure-activity relationships, which help optimize the pharmacological properties of these compounds for future therapeutic use.
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Role of Calmodulin in Neurodegeneration and Neuroprotection
Authors: Natalya Kurochkina and Parvathi RudrabhatlaAvailable online: 21 August 2025More LessIntracellular calcium (Ca2+) levels are critical in maintaining cellular activities and are tightly regulated. Neuronal degeneration and regeneration rely on calcium-binding proteins. Calmodulin (CaM) is a calcium sensor and the primary regulator of receptors and ion channels that maintain calcium homeostasis. The calmodulin binding domains are present in proteins that serve as risk factors and biomarkers associated with Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, Amyotrophic Lateral Sclerosis, and other neurodegenerative diseases, suggesting calmodulin ligands as emerging therapeutic targets for treatment. Inhibiting CaM to develop new therapies has drawbacks, as CaM is a ubiquitous molecule involved in many regulatory pathways. Recently, new strategies for disrupting CaM interactions with its targets have shown promising approaches to treatment.
The structures of human CaM, its binding proteins, and inhibitors are well studied, with particular emphasis on the conservation of CaM amino acid sequences and the ability to bind protein fragments of high sequence variability, which exhibit common characteristics of amphipathic helices carrying basic amino acids.
In this review, we discuss structural characteristics of CaM and its ligands in the context of transcriptional regulation. Specific binding of CaM to (1) basic region/helix-loop-helix/leucine zipper and (2) helix-turn-helix high mobility group box containing Sox families of transcription factors highlights common features of CaM binding sequences, which suggest their regulatory functions. We describe key proteins involved in neurodegeneration and transcription factors subject to calmodulin regulation that are candidates for the development of new approaches to treating neuronal diseases.
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Luteolin for the Treatment of Organ Fibrosis: A Mini Review
Authors: Nailong Wang and Wei LanAvailable online: 21 August 2025More LessLuteolin is a naturally occurring flavonoid that exhibits significant potential in mitigating organ fibrosis. This review consolidates evidence from studies demonstrating the antifibrotic effects of luteolin in hepatic, renal, cardiac, pulmonary, dermal, subretinal, and pancreatic fibrosis. Mechanistically, luteolin targets key pathways that drive fibrosis, including the TGF-β/Smad, STAT3, NF-κB, and AMPK signaling pathways, while suppressing oxidative stress, inflammation, and fibroblast activation. In hepatic fibrosis, luteolin inhibits hepatic stellate cell activation, reduces collagen synthesis, and counteracts ferroptosis by modulating the SLC7A11 and GPX4 pathways. Renal fibrosis is alleviated through the regulation of the SIRT1/FOXO3 and AMPK/NLRP3/TGF-β pathways, thereby attenuating ECM accumulation and inflammation. Cardiac benefits arise from luteolin’s modulation of NO-cGMP, AKT/GSK-3, and Nrf2/NF-κB axes, improving myocardial function. Pulmonary fibrosis models highlight the ability of luteolin to inhibit TGF-β1-induced Smad3 phosphorylation and inflammatory cytokine release. Additionally, luteolin demonstrates efficacy in skin and subretinal fibrosis by targeting TGF-β/Smad and YAP/TAZ pathways. Toxicology and pharmacokinetic studies indicate favorable safety profiles. Despite promising preclinical outcomes, clinical data remain scarce. The multi-target engagement, low toxicity, and broad bioactivity of luteolin position it as a compelling candidate for antifibrotic therapy. Further clinical research is warranted to translate these findings into therapeutic applications for fibrotic disorders.
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Progress in Heterocyclic Hybrids for Breast Cancer Therapy: Emerging Trends, Hybridization Techniques, Mechanistic Pathways and SAR Insights
Authors: Akhilesh Gangwar, Agnidipta Das and Vikas JaitakAvailable online: 13 August 2025More LessIntroductionBreast cancer is a widespread and life-threatening disease. While FDA-approved anti-BC drugs have improved survival rates, issues like drug resistance and adverse effects highlight the need for new therapeutic options. Molecular hybridization, a modern drug discovery strategy, combines different pharmacophores or frameworks into a single molecule to enhance pharmacological activity and improve treatment outcomes. Hybridizing two or more heterocyclic moieties has become a promising approach in anti-cancer drug discovery.
MethodsThis article reviews the role of heterocyclic hybrids in BC therapy, based on literature from 1995 to 2024 available in PubMed. Key heterocyclic hybrids, pyrimidine, triazole, indole, coumarin, beta-carboline, azepine, isoquinoline, benzoxepine, and platinum-core hybrids were included.
ResultsTriazole, in particular, was found to be a highly effective scaffold for BC treatment when combined with indole, pyridazinone, and steroid pharmacophores.
DiscussionThe article discusses novel molecular hybridization strategies, current BC treatment options, clinical studies, key functional groups, anti-apoptotic mechanisms, and protein-ligand interactions. Structure-activity relationships are explored to highlight desirable pharmacophoric features, aiding in the development of more effective BC therapies.
ConclusionEach heterocyclic hybrid class of BC comprises some salient features and potentials, which may be further investigated to obtain novel effective heterocyclic hybrid molecules in BC therapy.
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Pyridazine and Pyridazinone in Medicinal Chemistry: Synthesis and Anti-inflammatory Pathways Targeting TxA2, TNF-α, and IL-6
Authors: Soha H. Emam, Eman M. Ahmed, Nadia A. Khalil, Basma A. Mohammad and Nirvana A. GoharAvailable online: 13 August 2025More LessInflammation is a fundamental biological reaction to harmful stimuli, which is crucial in the initiation and advancement of different diseases, including rheumatoid arthritis, cardiovascular conditions, neurological disorders such as Alzheimer's and Parkinson’s, and multiple cancer types. Chronic inflammation, in particular, contributes to irreversible tissue damage and the progression of disease. Thus, the suppression of key inflammatory mediators has become a promising therapeutic approach. Thromboxane A2 (TxA2), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6) are among the mediators that have been thoroughly investigated for their roles in regulating immune responses and sustaining inflammation; therefore, targeting these mediators offers substantial therapeutic potential. In recent years, significant attention has been focused on heterocyclic compounds, especially pyridazine and pyridazinone derivatives, owing to their structural diversity and extensive biological activity. These scaffolds have shown significant effectiveness in regulating inflammatory pathways by limiting TxA2 production, reducing TNF-α release, and disrupting IL-6 signaling. This review presents a comprehensive overview of pyridazine and pyridazinone-based compounds as potential anti-inflammatory agents. It highlights both traditional and current synthetic strategies used in their development and explores their mechanisms of action with respect to key inflammatory targets. Additionally, the study examines recent pharmacological assessments and preclinical results, offering insights into the medicinal uses of these substances. A brief perspective on future research directions is also included, emphasizing the need for further structural optimization, in vivo validation, and clinical translation. Collectively, these results highlight the potential of pyridazine and pyridazinone derivatives in the development of advanced anti-inflammatory pharmaceuticals.
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Recent Advances in the Therapeutic Prospective of Heterocyclic Derivatives as COX-2 Inhibitors (2019-Present)
Authors: Afaf Y. Khormi, Amani M. R. Alsaedi, Thoraya A. Farghaly and Dina H. DawoodAvailable online: 05 August 2025More LessInflammation is a key contributor to the pathophysiology of various chronic diseases, including cancer, arthritis, cardiovascular disorders, chronic wounds, and gastrointestinal conditions, many of which rank among the leading causes of mortality worldwide, according to the WHO. The prevalence of chronic inflammation-related diseases is projected to rise steadily over the next 30 years, with an estimated three out of five individuals dying daily as a result of such conditions. Consequently, there is a growing demand for the discovery of novel anti-inflammatory agents. Cyclooxygenases play a pivotal role in inflammatory processes, being responsible for the synthesis of prostaglandins.
COX-1 is constitutively expressed and primarily associated with “housekeeping” physiological functions, whereas COX-2 is an inducible isoform involved in inflammatory responses. Due to its role in inflammation and relatively favorable gastric safety profile compared to traditional NSAIDs, COX-2 inhibitors have emerged as a significant therapeutic target for inflammation-related disorders. However, the increased risk of stroke and heart attack associated with COX-2 inhibitors has led to the withdrawal of several approved COX-2-targeting drugs from the market. Consequently, the development of new COX-2 inhibitors with potent efficacy and minimal cardiovascular side effects is of critical importance. This review explores a range of oxygen- and nitrogen-containing heterocycles as potential anti-inflammatory agents, emphasizing their COX-2 inhibitory activity, structure–activity relationships, and interactions within the COX-2 active site, as reported in recent studies. The article covers research findings published from 2019 through the first quarter of 2025.
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Emblica officinalis Gaertn. Fruits, their Phytochemicals, and Composite Herbal Products as Adjuncts in Preventing Ionizing Radiation Effects: Possible Use in Clinics
Available online: 17 July 2025More LessIn the management of solid tumors, ionizing radiation is a critical therapeutic modality, particularly when surgical intervention is impractical due to patient-related factors, such as compromised health or elevated mortality risk. However, its non-selective action can cause serious side effects that negate the therapeutic benefits. Efforts have thus been made to identify pharmacological agents that can selectively protect normal tissues from exposure to ionizing radiation. Seven decades of study, however, have shown that the desired success has not been achieved in obtaining an ideal radioprotective agent. Moreover, even at optimal doses, the FDA-approved drug, amifostine (also known as WR-2721 [S-2- (3-aminopropyl-amino) ethyl phosphorothioic acid], exhibits significant toxicity. An ideal radioprotective agent can also be beneficial in environments where individuals are exposed to prolonged, low-dose radiation. Considering this, there is a pressing need to develop methods of shielding cells and patients from the deleterious effects of radiation, and a non-toxic radioprotective drug can be useful in both clinical and occupational contexts. Studies have shown that the fruits of Emblica officinalis and its cardinal phytochemicals, such as gallic acid, ellagic acid, quercetin, geraniin, corilagin, and kaempferol, have been demonstrated to mitigate radiation-induced side effects. Research has also demonstrated that fruits can reduce the severity of radiation-induced mucositis in head and neck cancer patients undergoing curative treatment. Currently, there are no clinically effective non-toxic medications that are beneficial in mitigating radiation-induced ill effects. In lieu of this, for the first time, this review compiles the positive effects of fruits, phytochemicals, and their byproducts, chyawanprash and triphala, on radiation-induced damage, the mechanisms by which these effects occur, and the gaps that must be filled in order for future research to help people and the agricultural and nutraceutical industries.
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Potential of MAO-B Inhibitors with Multi-Target Inhibition and Antioxidant Properties for the Treatment of Neurodegenerative Disorders
Available online: 08 July 2025More LessMillions of people worldwide are affected by neurodegenerative disorders (NDs), which include a broad range of clinical ailments that affect the brain or peripheral nervous system, including Alzheimer’s disease (AD), Parkinson's disease (PD), Huntington's disease, etc. Neuronal cell death in NDs is often linked to oxidative stress; thus, antioxidant treatment can combat oxidative cell damage, and this strategy has been studied in neurodegenerative processes. Over the past 10 years, we have witnessed intense research activity on the biological potential of human monoamine oxidase (hMAO) inhibitors that have been associated with the prevention of oxidative stress and inflammation. These inhibitors have emerged as promising therapeutic agents, especially in the treatment of neurodegenerative diseases (NDs), where their core activity may help mitigate disease progression. An overview of the current state of numerous scaffolds, such as chromones, coumarins, chalcones, propargylamines, benzothiazoles, aminoisoquinolines, and the natural compounds, including ferulic acid, resveratrol, and chrysin, which combine antioxidant capability and hMAO inhibition is given in this review, with particular attention given to each scaffold's mechanism of action and structure-activity relationships (SARs), which are thoroughly discussed. Focusing on the dual mechanism of action, combining inhibition and antioxidant properties, as a potential therapy for neurodegenerative diseases, we have reviewed the different chemical classes of multi-target-directed ligand (MTDL) inhibitors developed within this framework. Other central nervous system (CNS)-related enzymes, such as cholinesterases, carbonic anhydrases, and BACE-1, have also been explored as targets in the MTDL strategy. By understanding their biological activity, medicinal chemists can better comprehend biological activity and recommend more effective and specific ND treatments.
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Phytochemical and Biological Biodiversity of Tomato (Solanum lycopersicum L.) (2010-2022)
Available online: 09 May 2025More LessTomato (Solanum lycopersicum L.) is one of the most common vegetable plants in the world. It is also named Lycopersicon esculentum. It serves as a model plant for the Solanaceae family, especially for plants that produce fleshy fruits. Various studies have shown that S. lycopersicum fruits, seeds, leaves, roots, in addition to tomato waste, constitute sources of vital bioactive substances such as lycopene, flavonoids, vitamins, and minerals. Consequently, tomatoes have powerful antioxidant activities in addition to cardiovascular protection, anticancer, antimutagenic, anti-inflammatory, antimicrobial, neuroprotective, antidiabetic, radioprotective, gut modulating activities, vision effect, and hepatoprotective. The current review illuminates the different isolated phytochemicals and medicinal value, as well as the pharmacological activities of S. lycopersicum.
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Promising Inhibitors of Endocannabinoid Degrading Enzymes Sharing a Carbamate Scaffold
Authors: Shivani Jaiswal and Senthil Raja AyyannanAvailable online: 25 November 2024More LessCarbamate has been extensively used as a scaffold in the recent era of drug discovery and is a common structural motif of many approved drugs. The carbamate moiety's unique amide-ester hybrid (-O-CO-NH-) feature offers the designing of specific drug-target interactions. Despite the discovery of numerous carbamate derivatives that act on the endocannabinoid system (ECS), the development of clinically effective carbamates remains a challenge. In this review, we highlight the therapeutic potential of carbamate inhibitors of endocannabinoid degrading enzymes as a breakthrough in discovering neurotherapeutic drugs. We discuss the design strategies and medicinal chemistry aspects involved in developing carbamate-based molecular architectures that modulate the endocannabinoid signaling pathway by interfering with fatty acid amide hydrolase (FAAH), monoacylglycerol lipase (MAGL), and α/β-Hydrolase domain-containing 6 (ABHD6). Additionally, we highlight the dual activity profile of carbamates against FAAH and MAGL, FAAH and cholinesterase, and FAAH and TRPV1 channels. Furthermore, we illustrate the pharmacophores of O-functionalized carbamates and N-cyclic carbamates that are crucial for FAAH and MAGL inhibitory activities, respectively.
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