The effects of tryptamine on blood glucose levels were studied. Tryptamine induced significant hypoglycemia in mice. The hypoglycemia elicited by tryptamine was strongly antagonized by methysergide, an antagonist of both 5-HT1 and 5-HT2 receptors. A 5-HT2 receptor antagonist, ketanserin, partially inhibited the tryptamine-induced hypoglycemia. These results suggest that tryptamine-induced hypoglycemia is mediated by 5-HT1 and 5-HT2 receptors.
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| http://dx.doi.org/10.1016/0014-2999(88)90338-x | DOI Listing |
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