45 citations
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January 1977 in “Advances in experimental medicine and biology” Hair follicles have an enzyme that converts arginine to citrulline in proteins.
12 citations
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December 1981 in “Journal of Endocrinology” This study found that α-melanocyte-stimulating hormone increased melanin production in hair follicles of moulting Siberian hamsters, whereas [8-arginine]-vasotocin inhibited melanin production without affecting tyrosinase activity.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This preliminary study of Alopecia Areata identified limited expression of certain metabolic transporters and enzymes in hair follicle immune cells, providing early insight into their unique energy needs.
7 citations
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June 2021 in “Amino acids” This study found that protein arginine methylation levels in human hair may correlate with a cardiovascular biomarker in blood, suggesting hair sampling as a potential non-invasive method for cardiovascular risk assessment.
36 citations
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March 2014 in “Biomaterials” This study found that the 11R-No. 10 peptide, delivered transdermally, significantly inhibited melanogenesis and produced a whitening effect in a UV-induced sun-tanning guinea pig model without cytotoxicity.