Mechanisms for inhibition of free fatty acid mobilization by nicotinic acid and sodium salicylate in canine subcutaneous adipose tissue in situ

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Abstract
Mechanisms for reduced free fatty acid (FFA) mobilization effected by nicotinic acid (NA) and sodium salicylate (SS) were studied in canine adipose tissue in situ. Both drugs inhibited adipose tissue lipolysis as evidenced by reduced release of glycerol. In addition, although the total amount of FFA re-esterified was not significantly changed, the amount of FFA re-esterified relative to the amount of FFA liberated intracellularly was significantly increased by both drugs. These effects were most pronounced during isoprenaline-stimulated lipolysis. Thus NA and SS reduced mobilization of FFA from canine adipose tissue through a combined effect on re-esterification and lipolysis.