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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-29886

Martin, L J M; Siliart, B; Lutz, T A; Biourge, V; Nguyen, P; Dumon, H J W (2010). Postprandial response of plasma insulin, amylin and acylated ghrelin to various test meals in lean and obese cats. The British Journal of Nutrition, 103(11):1610-1619.

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Abstract

The propensity of diets of different composition to promote obesity is a current topic in feline medicine. The effects of three meals with different protein:fat ratios on hormones (insulin, acylated ghrelin and amylin) involved in the control of food intake and glucose metabolism were compared. Five lean (two females and three males, 28.6 (sd 3.4) % body fat mass (BFM), mean body weight (BW) 4590 g) and five obese (two females and three males, 37.1 (sd 4.1) % BFM, mean BW 4670 g) adult cats were studied. Only BFM differed significantly between obese and lean cats. The cats were fed a high-protein (HP), a high-fat and a high-carbohydrate diet in a randomised cross-over design. Food intake did not differ between cats fed on the different diets, but obese cats consumed significantly more energy, expressed as per kg fat-free mass, than lean cats. After a 6-week adaptation period, a test meal was given and blood samples were collected before and 0, 30, 60 and 100 min after the meal. Baseline concentrations of glucose, amylin and acylated ghrelin were higher in obese cats than in lean cats, and obese cats showed the highest postprandial responses of glucose and amylin. The HP diet led to higher postprandial amylin concentrations than the other diets, indicating a possible effect of amino acids on beta-cell secretion. Postprandial ghrelin concentrations were unaffected by diet composition. The relationship between insulin, amylin and ghrelin secretion and their relevant roles in food intake and glucose metabolism in cats require further study.

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11 citations in Web of Science®
14 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Physiology
DDC:570 Life sciences; biology
Language:English
Date:2010
Deposited On:08 Feb 2010 14:59
Last Modified:27 Nov 2013 17:31
Publisher:Cambridge University Press
ISSN:0007-1145
Additional Information:Copyright: Cambridge University Press
Publisher DOI:10.1017/S000711450999359X
PubMed ID:20100379

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