TLDR Clobetasol nanocarriers can be effectively delivered to hair follicles, with uptake improved by massage and affected by particle type.
The study confirmed the porcine ear skin model's suitability for human follicular uptake studies of nanoparticle-based drug delivery systems, focusing on clobetasol nanocarriers. It demonstrated the chemical composition and localization of follicular tight junction proteins in hair follicles using confocal Raman microscopy, qPCR, and immunostaining. The research showed that follicular tight junctions acted as a barrier to xenobiotics, which could be modified using EDTA. The study evaluated three different nanocarriers for clobetasol, finding that while they had similar drug-release profiles and reduced skin permeation compared to dissolved drugs, follicular uptake was dependent on the particle type and was enhanced by massage.
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December 2015 in “European journal of cell biology” Tight junctions create a barrier in pig hair follicles that controls what can enter the skin.
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December 2015 in “Journal of Controlled Release” Nanocapsules can improve clobetasol delivery to hair follicles, reducing side effects.
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May 2011 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.
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April 1999 in “Dermatologic Surgery” The research found that for a typical hair density, about 11 square centimeters of donor scalp is needed to get 800 hair grafts for transplantation.
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December 2015 in “Journal of Controlled Release” Nanocapsules can improve clobetasol delivery to hair follicles, reducing side effects.
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