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November 2022 in “Communications biology” Keratin injections can promote hair growth by affecting hair-forming cells and tissue development.
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December 2008 in “Molecular biology of the cell” Disrupting Smad4 in mouse skin causes early hair follicle stem cell activity that leads to their eventual depletion.
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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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September 1973 in “Entomologia Experimentalis et Applicata” B-type hairs on female butterfly legs help them choose where to lay eggs.