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• W3044719830 abstract "Flibanserin (FLB) is a multifunctional serotonergic agent used for treating hypoactive sexual desire disorder in premenopausal women via oral administration. FLB has a reported limited oral bioavailability of 33% that could be attributed to the drug's first-pass metabolism. In addition, FLB has a pH-dependent solubility that could be a challenging factor for drug dissolution in the body neutral fluid, and consequently, absorption via mucosal barriers. Thus, this work aims at investigating the potential of utilizing nanostructured lipid carriers (NLCs) to overcome the aforementioned drawbacks and to enhance nose-to-brain drug delivery.Box-Behnken design was applied to explore the impact of solid lipid % (SL%, X1), liquid lipid % (LL%, X2), and sonication time (ST, X3) on particle size. The optimized NLC formulation was characterized and incorporated into gellan gum in situ gel. The prepared gel was subjected to in vitro drug release, in vivo pharmacokinetic performance, and histopathological assessment in rats.Statistical analysis revealed a significant negative effect for both SL% and ST on NLCs size. In contrast, a significant positive effect was observed for the LL%. The optimized formulation showed spherical shape with vesicular size of 114.63 nm. The optimized FLB-NLC in situ gel exhibited adequate stability and enhanced in vitro release compared to raw FLB control gel. The plasma and brain concentrations of the drug after nasal administration in rats increased by more than 3-6-fold, respectively, compared to raw FLB in situ gel. In addition, the histopathological studies revealed the absence of any pathological signs.The aforementioned results highlight the safety of FLB-NLC in situ nasal gel and its potential to improve the drug bioavailability and brain delivery." @default.
• W3044719830 created "2020-07-29" @default.
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• W3044719830 date "2020-07-01" @default.
• W3044719830 modified "2023-10-16" @default.
• W3044719830 title "<p>Optimized Nanostructured Lipid Carriers Integrated into In Situ Nasal Gel for Enhancing Brain Delivery of Flibanserin</p>" @default.
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• W3044719830 doi "https://doi.org/10.2147/ijn.s258791" @default.
• W3044719830 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7386805" @default.
• W3044719830 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32801690" @default.
• W3044719830 hasPublicationYear "2020" @default.
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