Abstract
Hyperlipaemia and hypercholesterolaemia were induced in white rats by intraperitoneal injections of tyloxapol. Various sympatholytics and adrenolytics, including blocking agents of beta-receptors, were given simultaneously with tyloxapol. Bretylium tosylate prevented the increase in the serum levels of esterified fatty acids and cholesterol caused by tyloxapol. Phentolamine decreased the enhancement by tyloxapol of cholesterol and total lipid concentrations in the serum. Guanethidine and phenoxybenzamine reduced the increase in the concentration of esterified fatty acids, whereas dichloroisoprenaline insignificantly increased the tyloxapol-induced hyperlipaemia. A small dose of pronethalol slightly increased the esterified fatty acid level in tyloxapol-treated animals; a large dose significantly decreased the serum cholesterol concentration.
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