Jan 1, 1988

Decreased gastro-intestinal responses to salbutamol and serotonin in streptozotocin-induced diabetes: improving effect of insulin in vivo and in vitro

General Pharmacology
N Yidizoğlu-AriC Karasu

Abstract

1. Decreased gastro-intestinal responses to salbutamol (sal) and serotonin (5-HT) in experimental diabetes have been postulated. The present study was designed to investigate whether in vivo and in vitro insulin treatments improve the decreased gastro-intestinal responses. 2. In vivo insulin treatment (166.7 micrograms/kg/day i.p.) for 6 weeks is able to improve both decreased gastro-intestinal beta-adrenergic and serotonergic responses. 3. Insulin incubation in bathing medium for 4-5 hr enhances the decreased gastro-intestinal responses to sal, but not to 5-HT. 4. The above results strongly suggest that the improving effect of insulin on the gastro-intestinal beta-adrenergic responses is direct in nature. In contrast, the improving effect on insulin on the serotonergic responses occurs via an indirect mechanism.

Mentioned in this Paper

Sultanol
Duodenum
Insulin B Chain
Streptozotocin Diabetes
Novolin
Proventil
In Vitro [Publication Type]
Metazoa
Stomach
Rats, Laboratory

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