PMID: 8963558Jul 1, 1996Paper

Features of distribution of free and esterified cholesterol in the epidermis, biological membranes and plasma lipoproteins in psoriasis

Klinicheskaia laboratornaia diagnostika
E S FortinskaiaE M Khalilov

Abstract

The parameters of cholesterol (CS) metabolism in the epidermis, blood plasma lipoproteins, and red cell membranes were assessed in patients with psoriasis. The levels of free and total CS in extracts from the surface of epidermis, in plasma lipoproteins, and in plasma triglycerides were measured, and the molar ratio CS/ phospholipids (CS/PL index) in red cell membranes assessed in 194 patients with psoriasis of different severity. The levels of free and total CS in the epidermis were found to increase as the psoriatic process grew in severity. These shifts manifested even in apparently intact skin sites, which indicated the primary nature of total-system disorders. As for the plasma lipids, statistically reliable changes were observed only for the relative level of free cholesterol of the plasma and, most of all, high-density lipoproteins. These values for the mean parameters in the five groups of examinees correlated (r from 0.71 to 0.92) with the levels of total and free CS in the epidermis. Contrary to it, the levels of total CS and triglycerides in the plasma had a tendency to decrease as the severity of the psoriatic process augmented. Such a trend was statistically reliable for the CS/PL index, which increased in all the ...Continue Reading

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