Abstract
In the present study, we designed Bicalutamide (BCT) and Hesperetin (HSP) co-loaded self nano-emulsifying drug delivery system (SNEDDS) to encounter the problem of BCT induced toxicity, low solubility, and bioavailability. Optimized BCT-HSP SNEDDS would produce an emulsion of globule size 30.84±1.24nm with a high encapsulation efficiency of BCT (91.29%) and HSP (88.19%), and showed rapid drug release. DPPH assay confirmed the retention of antioxidant potential of HSP in SNEDDS. DCFH-DA confirmed intense green fluorescence in HSP treated groups due to the generation of reactive oxygen species. Thermogravimetric analysis showed the change in the polymorphic form of BCT. After 14days of sub-acute toxicity study, no significant increase (p>0.05) in the hepatotoxicity markers was observed but BCT-HSP SNEDDS significantly decreased (p<0.001) the levels of nephrotoxicity biochemical markers. Additionally, the histopathological study showed that pulmonary fibrosis and alteration in the bowman's by BCT treatment were conquered by co-administration of HSP. BCT-HSP SNEDDS revealed high AUC0-t of BCT (1.23 fold) and HSP (3.42 fold) than aqueous suspension in male Sprague-Dawley rats. The BCT-HSP SNEDDS were absorbed by clathrin-mediated endocytosis and lymphatic transport absorption pathway. Our results proposed that the co-delivery approach may be useful for in vivo management of prostate cancer.
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