[A method of determination of cholesterol contents on the surface of the human skin and prospects of its use. II. Psoriasis].

A noninvasive method for cholesterol extraction from the surface layers of the epidermis is suggested. Levels of cholesterol and its fractions were measured in extracts obtained from the foci of psoriasis and apparently intact skin of 105 patients with psoriasis. Cholesterol levels were found noticeably increased, mainly at the expense of its free fraction in involved foci and in apparently intact skin.

[Interactions of lipid micelles with blood proteins].

Interaction of lipid micelles (LM), containing cholesterol and hydroxycholesterol, with human serum lipoproteins was investigated. It was shown that cholesterol-containing LM interact with low density lipoproteins (LDL). Selectivity of LM-LDL interaction depended on the cholesterol content of micelles and almost did not depend on the composition of LM core.