Integral Lipids of Human Hair
Overview
Authors
Affiliations
It has long been recognized that hair is coated with nonpolar lipids originating in the sebaceous glands, and recently it has been shown that hair also contains cholesterol sulfate and small amounts of ceramides, similar to those found in the keratinized portion of the epidermis. In the present study, it is demonstrated that significant amounts of several additional lipids are tightly associated with hair in such a way as to be highly resistant to solvent extraction. These integral hair lipids included cholesterol sulfate (3.3 mg/g of extracted hair), cholesterol (0.6 mg/g), fatty alcohols (0.2 mg/g) and free fatty acids (4.3 mg/g). The principal fatty acid, comprising 40% of the total fatty acids, was identified as 18-methyl-eicosanoic acid by cochromatography with authentic standard on gas-liquid chromatography (GLC) and by mass spectrometry (MS).
Can longer lifespan be associated with gut microbiota involvement in lipid metabolism?.
Sardzikova S, Gajewska M, Galka N, Stefanek M, Balaz A, Garaiova M FEMS Microbiol Ecol. 2024; 100(11).
PMID: 39354675 PMC: 11503954. DOI: 10.1093/femsec/fiae135.
The ethnic differences of the damage of hair and integral hair lipid after ultra violet radiation.
Ji J, Park T, Lee H, Kim Y, Pi L, Jin X Ann Dermatol. 2013; 25(1):54-60.
PMID: 23467772 PMC: 3582929. DOI: 10.5021/ad.2013.25.1.54.
Photoaggravation of hair aging.
Lee W Int J Trichology. 2010; 1(2):94-9.
PMID: 20927230 PMC: 2938585. DOI: 10.4103/0974-7753.58551.
Serra M, Matabosch X, Ying L, Watson G, Shackleton C J Steroid Biochem Mol Biol. 2010; 122(5):318-25.
PMID: 20804844 PMC: 2964438. DOI: 10.1016/j.jsbmb.2010.08.006.
Characterization of hair lipid images by argon sputter etching-scanning electron microscopy.
Masukawa Y, Tanamachi H, Tsujimura H, Mamada A, Imokawa G Lipids. 2007; 41(2):197-205.
PMID: 17707986 DOI: 10.1007/s11745-006-5088-4.