Insulin secretion in mammosomatotropic tumor-bearing and pregnant rats. A role for lactogens.

Abstract:

:The experiments reported here investigate the effects of two conditions of elevated lactogen activity on the threshold of glucose stimulation of insulin secretion and suprathreshold, glucose-stimulated insulin secretion in the isolated, perfused rat pancreas. In both the tumor-bearing animals and pregnant animals, the glucose threshold for insulin release was markedly reduced and the suprathreshold insulin release was elevated over that observed in control pancreata. There was no change on the glucose threshold or extent of release of somatostatin secretion. Altered insulin secretion appears to be readily reversible, since the secretion profile from postlactating animals was not different from the controls. The possible mechanistic role of lactogens is discussed.

journal_name

Diabetes

journal_title

Diabetes

authors

Sorenson RL,Parsons JA

doi

10.2337/diab.34.4.337

subject

Has Abstract

pub_date

1985-04-01 00:00:00

pages

337-41

issue

4

eissn

0012-1797

issn

1939-327X

journal_volume

34

pub_type

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