Formulation development of Azadirachta indica extract as nanosuppositories improves its intrarectal delivery for the treatment of malaria.

Recent advances in drug delivery and formulation(2022)

引用 0|浏览8
暂无评分
摘要
Previous folkloric and experimental reports have demonstrated the antimalarial efficacy of Azadirachta indica (AZA) extracts. However, one of the major challenges facing its application for the clinical treatment of malaria is the design of an acceptable dosage form.Consequently, we developed AZA extract-loaded nanostructured lipid carriers (NLC) for the formulation of suppositories, denoted as nanosuppositories, for intrarectal treatment of malaria.Various batches of NLC-bearing AZA extract were formulated based on lipid matrices prepared using graded concentrations of Softisan®154 and Tetracarpidium conophorum or walnut oil. NLC was investigated by size, and differential scanning calorimetry (DSC). Suppository bearing AZA extract-loaded NLC was developed using cocoa butter or theobroma oil, and their physicochemical properties were profiled. In vitro drug release and in vivo antimalarial (using Plasmodium berghei-infected mice) evaluation were investigated.NLCs had sizes in nanometer scale ranging from 329.5 - 806.0 nm, and were amorphized as shown by DSC thermograms. Nanosuppositories were torpedo- or bullet- shaped, weighed 138 - 368 mg, softened/liquefied between 4.10 - 6.92 min, and had controlled release behaviour. In vivo antimalarial study revealed excellent antimalarial efficacy of the nanosuppositories comparable with a commercial brand (Plasmotrim®) and better than the placebo (unloaded nanosuppository), and without toxic alterations of hepatic and renal biochemical factors.Thus, AZA extract could be rationally loaded in nanostructured lipid carriers (NLC) for further development as nanosuppositories and deployed as an effective alternative with optimum convenience for intrarectal treatment of malaria.
更多
查看译文
关键词
Azadirachta indica,Plasmodium falciparum,Tetracarpidium conophorum,malaria,nanostructured lipid carriers,nanosuppositories
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要