Current Biotechnology - Volume 14, Issue 4, 2025
Volume 14, Issue 4, 2025
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Potential Therapeutic and Health Benefits of Spirulina Microalgae, in Neurodegenerative Disorders: From Nutraceutical to Neuroprotectant
More LessAuthors: Seema Sharma, Sampat Singh Tanwar, Sumeet Dwivedi and Sheema KhanNeurodegenerative diseases such as Alzheimer’s disease (AD) and Parkinson’s disease (PD) are progressive disorders marked by neuronal loss, synaptic dysfunction, and cognitive or motor decline. Oxidative stress and chronic neuroinflammation are key drivers in their pathology. In AD, β-amyloid plaques and tau hyperphosphorylation cause mitochondrial damage and ROS overproduction, while PD involves dopaminergic neuronal loss due to oxidative damage. Elevated cytokines like TNF-α, IL-1β, and IL-6 further worsen neuronal injury. Spirulina (Arthrospira platensis), a nutrient-rich cyanobacterium, is gaining attention as a neuroprotective nutraceutical. Its bioactive compounds-C-phycocyanin, β-carotene, tocopherols, and γ-linolenic acid-exhibit strong antioxidant and anti-inflammatory properties. Preclinical studies show spirulina enhances antioxidant enzymes, lowers lipid peroxidation, and improves cognitive performance. This review analyzed preclinical and clinical studies from PubMed, Scopus, and Web of Science focusing on spirulina’s effects in AD and PD models. Spirulina reduced oxidative markers (MDA, NO), increased antioxidant enzymes (GPx, SOD), downregulated pro-apoptotic genes (caspase-3, Bax), and upregulated anti-apoptotic Bcl-2. It also inhibited NF-κB signalling and reduced inflammatory cytokines. A clinical trial in AD patients reported significant MMSE score improvements with spirulina supplementation. Advanced delivery systems like spirulina-loaded nanoparticles and niosomes enhanced its bioavailability and neuroprotective effects in animal models. Overall, spirulina shows promise in mitigating neurodegeneration by targeting oxidative stress and inflammation. Despite encouraging results, larger clinical trials are needed to confirm its therapeutic potential as a safe, effective nutraceutical for neurodegenerative diseases.
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Phthalate Toxicity in Different Experimental Models
More LessAuthors: Kajal Gaur and Yasir Hasan SiddiquePhthalates (PAEs) are the major source of concern because they are commonly used plasticizers in various plastic products and can make their way into the environment. Mostly, phthalate metabolites are released in the urine. In many research studies, it has been observed that some metabolites of phthalates are more harmful than the parental compounds and can be used as biomarkers for the study of phthalate toxicity. Despite some inconsistencies, the present review describes the exposure of phthalates to children, older people, and aquatic life. The studies carried out on the toxic effects of different types of phthalates on various experimental models have been reviewed. The review also summarises the interaction between mechanisms of action involved in the toxicity induced by various PAEs. The literature search has been carried out using PubMed, Science Direct, Scopus, and Google Scholar databases. The studies available on the toxicity of phthalates from 1982 to 2024 have been considered for the review.
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Patent Landscape Analysis of Antioxidants from Lamiaceae Plants: Innovations and Applications
More LessAuthors: Reda El Boukhari, Maima Matin, Atanas G. Atanasov and Ahmed FatimiIntroductionLamiaceae plants are a rich source of natural antioxidants, widely applied in cosmetics, pharmaceuticals, and functional foods due to their therapeutic potential against oxidative stress-related disorders. As natural product innovation accelerates, understanding patent trends can provide strategic insights into technological advances, key stakeholders, and emerging applications.
MethodsA systematic patent landscape analysis was performed using the Espacenet database. The search strategy was based on the intersection of Cooperative Patent Classification (CPC) codes related to therapeutic applications (e.g., A61P39/06 for oxidative stress, A61P17/18 for dermatological use), medicinal preparations (A61K36), and botanical classifications (A01H6/50 for Lamiaceae). All patent documents up to 2024 were included, with no language restrictions. Patent families, publication trends, jurisdictions, assignees, CPC classifications, and technological applications were analyzed to map the innovation landscape.
ResultsBetween 2001 and 2021, there was a steady rise in patent activity related to antioxidants from Lamiaceae species. China led in both the volume and diversity of innovations, followed by the United States and Europe. Technological applications are predominantly concerned with cosmetics, dermatological treatments, pharmaceuticals, and functional food products. Leading assignees included multinational and regional companies, indicating strong commercial interest in these bioactive compounds.
DiscussionThe patent trends reveal increasing global interest in sustainable, plant-derived antioxidant solutions. The strong presence of industry players highlights the translational potential of Lamiaceae-derived compounds in high-value sectors such as anti-aging, anti-inflammatory therapeutics, and wellness. Jurisdictional variations reflect strategic patenting behavior and regional innovation capacities.
ConclusionThis study highlights the growing strategic importance of Lamiaceae-derived antioxidants in innovation ecosystems. The patent landscape identifies key technologies, markets, and actors driving development in natural antioxidant applications. These findings support future interdisciplinary research and industry partnerships aimed at advancing sustainable, bioactive product innovation.
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In silico Lactochassis: In Silico Prediction of Essential Genes in Lacticaseibacillus casei: A Step towards Genome Minimisation
More LessIntroductionSynthetic biology using minimal-genome engineering has been proposed as the best way to optimize probiotic chassis. A minimal genome presents a significant advantage of enhanced production of heterologous proteins. This research article presents a comprehensive computational biology study for bacterial gene essentiality and genome reduction design within Lacticaseibacillus casei ATCC 393.
MethodsThis study used a computational biology approach to identify the essential genes of L.casei ATCC 393. Essential genes were identified using DELetion design by Essentiality Analysis Tool (DELEATv0.1), Gene Essentiality Prediction Tool for Complete-Genome Based on Orthology and Phylogeny (Geptop2), the Database of Essential Genes (DEG), and Alignable Tight Genomic Clusters-Clusters of Orthologous Genes (ATGC-COG). The criteria for identification of essential genes included phyletic retention (essential orthologs), codon usage, G + C content, length, hydrophobicity score, and essential genomic elements, such as protein-coding genes and noncoding RNAs, among other factors.
ResultsUsing a consensus approach, 633 putative essential genes were identified. In addition, 145 genes associated with probiotic attributes, such as the production of bacteriocins, bile and acid resistance, immune modulation, and adherence to host gut epithelia, were identified.
DiscussionThe directed evolution by serial passage was initiated by streaking L. casei ATCC 393 as part of the test phase of the Design-Build-Test-Learn (DBTL) cycle. The survival rate data were calculated from mean 0D600 nm readings. The data revealed a significant difference in survival rates between E1 and E2 from day 1 to day 38 (V = 224, p = 0.00745), indicating that factors, possibly inherent to the isolates themselves or subtle variations in the environment, may be influencing the results. Overall, the significant differences suggest that survival rates were affected by specific NaCl concentrations. Lower survival rates were observed at 50 g/L and 71g/L compared to other concentrations.
ConclusionThe in silico analysis yielded valuable insights into the essential genes of L. casei ATCC 393. Further, it contributes to understanding the fundamental genetic makeup of L. casei ATCC 393 and its potential as a probiotic chassis for various applications, including the development of novel biotherapeutics.
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