20 citations
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February 1977 in “The anatomical record” This study found that excess vitamin A in organ cultures of mouse embryos led to significant changes in epidermis and hair follicles, altering morphogenesis and polysaccharide distribution.
41 citations
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July 1994 in “Journal of Dermatological Science” This review examines the differentiation potential of epithelial cells from various sources in hair follicle formation, concluding that complex interactions are required for hair-specific characteristics, which were achieved in vivo but not in vitro.
44 citations
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August 1990 in “PubMed” This study provides evidence for K1 and K10 derivatives' presence in the inner root sheath and hair cuticle, suggesting that these hair follicle parts may follow familiar keratinization principles.
January 2001 in “Acta Academiae Medicine Militaris Tertiae” In this study, the researchers reported that the expression of keratin 14 in the skin and hair follicles of neonatal and juvenile rats differs from that observed in adults or human embryos.
7 citations
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December 2011 in “Annals of anatomy” This study found that involucrin likely plays a key role in forming the cornified material of the medulla and inner root sheath of human hair, contributing to its mechanical strength.