Abstract
Suppressive effects of ethanol (ETOH) on in vivo serum growth hormone (GH) levels have been reported in both humans and animals. To determine whether this effect could be mediated directly at the pituitary level, we have designed a series of in vitro experiments utilizing pituitary cells from ETOH naive animals maintained in monolayer culture. We report that ETOH, in doses ranging from 50 to 400 mg%, caused a prompt and sustained reduction in basal GH secretion, as well as a significant fall in intracellular GH content. These data establish that the in vivo effects of ETOH on GH can be accounted for, at least in part, by a direct effect at the pituitary level, possibly due to reduced GH synthesis.
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