Suckling increases insulin and glucagon levels in peripheral venous blood of lactating dogs

Acta Physiologica Scandinavica
M ErikssonK Uvnäs-Moberg

Abstract

The aim of the present investigation was to study changes in insulin, glucagon and plasma glucose levels in response to suckling in lactating dogs. Blood samples were drawn from a peripheral vein during suckling in weeks 1 and 3 of lactation in 10 lactating beagles. Insulin- and glucagon-like immunoreactivity (below referred to as insulin and glucagon) were determined by radio-immunoassay, and plasma glucose levels by the glucose oxidase method. Insulin and glucagon levels rose following onset of suckling. However, only the rises recorded in week 3 of lactation were statistically significant. Plasma glucose levels were not affected. The mechanism by which suckling influences the levels of insulin and glucagon is not known. However, the release of both hormones is under vagal control and it is possible that touching of the teats reflexly elicits a vagally mediated release of these hormones. Alternatively, since oxytocin stimulates the secretion of insulin and glucagon, the effects might be secondary to the oxytocin released by suckling. The physiological function of the suckling-related release of insulin may be to stimulate milk production. Furthermore, since glucagon is also released, each suckling period may be accompanied by...Continue Reading

References

May 1, 1977·Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Métabolisme·K Uvnäs-Wallensten, G Nilsson
Jul 1, 1977·Acta Physiologica Scandinavica·G Nilsson, K Uvnäs-Wallensten
Jul 1, 1985·Acta Physiologica Scandinavica·K Uvnäs-MobergA Kunavongkrit
Oct 1, 1985·Acta Physiologica Scandinavica·S Stock, K Uvnäs-Moberg
Sep 1, 1973·Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Métabolisme·B B Fredholm, B Persson
Jan 1, 1980·Annual Review of Physiology·R P Shiu, H G Friesen
Jul 1, 1982·Journal of Reproduction and Fertility·D W Lincoln, A C Paisley
Jan 1, 1983·Acta Physiologica Scandinavica·K Uvnäs-Moberg, M Eriksson
Jan 22, 1983·British Medical Journal·A S McNeillyP W Howie
Sep 1, 1981·Proceedings of the National Academy of Sciences of the United States of America·F F BolanderY J Topper
May 1, 1982·The Journal of Endocrinology·D J Flint
Sep 27, 1980·British Medical Journal·A LucasM D Mitchell
Oct 28, 1958·Acta Physiologica Scandinavica·B ANDERSSONN PERSSON

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Citations

Jan 1, 1989·Acta Paediatrica Scandinavica. Supplement·K Uvnäs-Moberg
May 22, 1998·Journal of Dairy Science·R M Bruckmaier, J W Blum
Oct 28, 2019·Nutrients·Thomas SevrinClair-Yves Boquien
Nov 24, 1999·Acta Paediatrica. Supplement·R Zetterström

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