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This study aimed to introduce a gel (NEG) formulation containing betulin-loaded nanoemulsions for topical psoriasis treatment.
The prepared nanoemulsions were optimized for smaller particle size and higher drug content using a response surface methodology that exhibited uniform distribution and high drug loading (21.17±3.55%).
The gel demonstrated skin-compatible pH and good spreadability. The developed gel showed slower release compared to nanoemulsion. In vivo pharmacokinetics demonstrated elevated AUC (55835.1 µg/cm2.h) and extended Tmax (720 min) for the gel than NE, indicating extended skin retention. Improved skin hydration (35%) and lipid content (28%) were observed, along with significant reductions in PASI scores and cytokine levels.
Provided with enhanced skin retention, improved hydration, and lipid content, along with significant therapeutic efficacy in psoriasis treatment, betulin-loaded nanoemulsion gel demonstrated prolonged drug release and notably reduced PASI scores and cytokine levels, highlighting its effectiveness against psoriasis.
This highlights the promising potential of NEG for topical psoriasis management.
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