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Monounsaturated fatty acids, especially oleic acid (C18:1), decreased the content of saturated very-long-chain fatty acids (VLFA) in cultured skin fibroblasts from patients with adrenoleukodystrophy (ALD) and controls. When confluent ALD fibroblasts were incubated with oleic acid for 5 days in lipid-free medium, which eliminates uptake of exogenous VLFA, the mean cell content of C26:0 was decreased by 33.7 +/- 10.1%. Oleic acid inhibited C26:0 synthesis in ALD fibroblasts by 58% and total fatty acid synthesis by 68 to 78%. Therefore, the elevated C26:0 levels in ALD cells may be lowered by inhibiting fatty acid biosynthesis, and inhibition of saturated VLFA synthesis by oleate may be useful in treating ALD.

SUMMARYThe chemical composition of whole organisms and cell membranes of eight saprophytic and parasitic Mycoplasma strains was studied.

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