We analyzed the erythrocyte membrane lipid composition in 11 non-diabetic CAPD patients on treatment for 3-78 months and in a control group of 12 subjects. The mean total values of both saturated fatty acids and unsaturated fatty acids were not statistically different in CAPD patients and in controls but the composition of fatty acids of in cell membranes was altered. In fact, CAPD patients had a higher percentage of monounsaturated fatty acids and a lower percentage of polyunsaturated fatty acids than controls. This increase MUFA/PUFA ratio might reflect either a preferential cell membrane uptake of MUFA or a relative PUFA deficiency due to an increased lipid peroxidation.
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