Fedorkova M.V. Smolina N.V. Mikhalchik E.V. BalabushevichbN.G., Ibragimova G.A., Gadzhigoroev A.G., Dmitrieva E.I., Dobretsov G.E.

The Journal of Photochemistry and Photobiology B: Biology

2014

Vol. 140

390-395

English

Exposure of hair fibers from healthy volunteers to Ultra Violet Radiation (UVR) under laboratory conditions enhanced protein elution from the hair tresses into a buffer solution (pH 10.5). At the same time the UVR decreased the intensity of tryptophan fluorescence in the eluted proteins. After mechanical homogenization of these hair samples, the increase of soluble protein was registered for UVR treated hair as well as the rise in sulfhydryl group content of these proteins. Analysis of soluble proteins from hair samples homogenized before and after protein elution has shown that mainly proteins rich in sulfhydryl groups were eluted and as a result sulfhydryl content of proteins in hair shaft decreased. The hypothesis concerning the effects of environmental factors on the properties of hair shaft proteins was examined, the proximal and distal parts of normal hair (0–5 cm and 15–20 cm from hair root) were compared.

Смолина Наталья Викторовна 2014-10-10

Hair photodegradation, Soluble proteins, Tryptophan fluorescence, Sulfhydryl groups,

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