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300943 occurrences (No.75 in the rank) during 5 years in the PubMed. [no cache] 500 found

237) In the present study, the biopotential of capsaicin (an active principle of capsicum) as a topical antiarthritic agent was studied in arthritic rats.

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PMID:24471764 DOI:10.3109/10717544.2013.871601

2015 Drug delivery

* Potential of capsaicin-loaded transfersomes in arthritic rats.

- In the present study, the biopotential of capsaicin (an active principle of capsicum) as a topical antiarthritic agent was studied in arthritic rats. Transfersomal vesicular system was employed for the topical administration of capsaicin in experimental rats. The characterization of prepared capsaicin-loaded transfersomes reveals their nano size (94 nm) with negative surface charge (-14.5 mV) and sufficient structural flexibility, which resulted in 60.34% entrapment efficacy, penetration across the biomembrane (220 µm) and 76.76% of drug release from vesicular system in 24 h in their intact form as evident from confocal laser scanning micrographic study. Results of transfersomal nanoformulation (capsaicin loaded, test) were compared with that of conventional gel formulation available in the market (Thermagel, standard), with an aim to assess the antiarthritic efficacy of our prepared capsaicin-loaded transfersomal formulation. In vivo antiarthritic activity study shows that our formulation possesses superior inhibitory activity than the marketed Thermagel formulation at the same dosage level, which could probably be due to the lesser permeability of Thermagel across the dermal barriers compared to our specially designed transfersomal delivery system. Moreover, the better tolerance of prepared vesicular formulation in biological system further enlightens the suitability of the transfersomal vesicle to be used as a novel carrier system for the topical administration of such highly irritant substance.

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