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Horm Metab Res 1979; 11(3): 209-213
DOI: 10.1055/s-0028-1092709
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© Georg Thieme Verlag KG Stuttgart · New York

Comparison of the Effects of Insulin and Insulin-like Agents on Different Aspects of Adipocyte Metabolism[*]

J. M. Olefsky[**]
  • Department of Medicine, University of Colorado School of Medicine, Denver, Colorado, USA
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Publication History

Publication Date:
17 December 2008 (online)

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Abstract

The effects of insulin, spermine, cysteine, and diamide on glucose transport, glucose oxidation, and lipolysis were compared using isolated rat adipocytes. Each agent exerted insulin-like effects on glucose transport and glucose oxidation, whereas spermine and cysteine, but not diamide, inhibited lipolysis. Furthermore, the relative potencies of these agents on the various insulin responsive processes were markedly different. Thus, although these agents have much in common with insulin, the differences in relative potencies suggest that at least some of the insulin-like properties of these compounds may not be exerted through the same mechanisms as insulin.

Key words

Insulin - Adipocytes - Insulin Action - Glucose Transport - Lipolysis - Glucose Oxidation - 2-Deoxy Glucose

1 This work was supported by funds from the Medical Research Service of the Veterans Administration Hospital, by a grant from the American Diabetes Association, and by NIH grant #AM 19905.

1 This work was supported by funds from the Medical Research Service of the Veterans Administration Hospital, by a grant from the American Diabetes Association, and by NIH grant #AM 19905.

2 Dr. Olefsky is a Clinical Investigator with the Veterans Administration Hospital.

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