alexa Bioactivity in Whey Proteins Influencing Energy Balance
ISSN: 2167-0943

Journal of Metabolic Syndrome
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Review Article

Bioactivity in Whey Proteins Influencing Energy Balance

Liam McAllan1,2, Paul D Cotter1,3, Helen M Roche4, Riitta Korpela5 and Kanishka N Nilaweera1*
1Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
2Department of Pharmacology and Therapeutics, University College Cork, Cork, Ireland
3Alimentary Pharmabiotic Centre, Cork, Ireland
4UCD Conway Institute of Biomolecular & Biomedical Research, & UCD Institute of Food & Health, University College Dublin, Belfield Dublin 4, Ireland
5Institute of Biomedicine, Biomedicum Helsinki, P.O. Box 63, FI-00014 University of Helsinki, Finland
Corresponding Author : Kanishka Nilaweera
Teagasc Food Research Centre
Moorepark, Fermoy
County Cork, Ireland
Tel: 00 353 (0)25 42674
Fax: 00 353 2542340
E-mail: [email protected]
Received January 11, 2012; Accepted March 26, 2012; Published March 30, 2012
Citation: McAllan L, Cotter PD, Roche HM, Korpela R, Nilaweera KN (2012) Bioactivity in Whey Proteins Influencing Energy Balance. J Metabolic Synd 1:107. doi:10.4172/2167-0943.1000107
Copyright: © 2012 McAllan L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Obesity develops due to energy (food) intake exceeding energy expenditure. Nutrients that reduce the positive energy balance are thus being considered as therapies to combat obesity. Here, we review the literature related to the physiological, cellular and endocrine effects of intake of whey proteins, namely α-lactalbumin, β-lactoglobulin, glycomacropeptide and lactoferrin. Moreover, we discuss how dietary composition and obesity may influence whey protein effects on the above parameters. Evidence suggests that intake of whey proteins causes a decrease in energy intake, increase in energy expenditure, influence insulin sensitivity and glucose homeostasis and alter lipid metabolism in the adipose, liver and muscle. These physiological changes are accompanied by alterations in the plasma levels of energy balance related hormones (cholecystokinin, ghrelin, insulin and glucagon-like peptide-1) and the expression of catabolic and anabolic genes in the above tissue in the direction to cause a negative energy balance.

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