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Phospholipid content and fatty acid composition in the rat heart after chronic diazepam treatment
V Ristić1, V Tepsić, S R De Luka
1Institute for Medical Research, Belgrade, Yugoslavia.
Abstract:
The effects of chronic diazepam treatment (10 mg/kg/day for 180 days) on the fractional distribution and fatty acid composition of heart phospholipids were studied in male Wistar rats. It was found that diazepam treatment increased the content of phosphatidylcholine and cardiolipin in the heart and slightly increased its phosphatidylcholine fraction. There were no significant changes in fatty acid composition after diazepam treatment in heart phospholipids, with the exception of significant decrease of 20:3n-6 and 20:5n-3 fatty acids. Our findings suggest that diazepam, probably through peripheral benzodiazepine binding sites, altered the content of heart cardiolipin and caused changes in the flux of oxidative phosphorylation in the heart.