Abstract
The effect of epinephrine and norepinephrine on the individual free fatty acids of plasma was investigated in anesthetized dogs. The increased arterial free fatty acids (FFA) after the administration of catecholamines was due to a rise in concentration of most major fatty acids. The percentage contribution of oleic and linoleic acids to the total arterial FFA was also increased. A direct relationship was found-both in normal and in diabetic dogs-between the resting arterial FFA level and the percentage of oleic acid in FFA. An attempt was made to relate these findings to the selective release of FFA from adipose tissue that occurs in the normal animal.

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