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Nutrients 2009, 1(2), 178-196; doi:10.3390/nu1020178

Dietary Supplementation with Conjugated Linoleic Acid Plus n-3 Polyunsaturated Fatty Acid Increases Food Intake and Brown Adipose Tissue in Rats

1
Vascular Health Programme, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, AB21 9SB, UK
2
Obesity and Metabolic Health Programme, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, AB21 9SB, UK
3
School of Medicine and Dentistry, Cancer Medicine Research Programme, University of Aberdeen, Aberdeen, AB25 2ZD, UK
*
Author to whom correspondence should be addressed.
Received: 15 October 2009 / Accepted: 24 November 2009 / Published: 26 November 2009
(This article belongs to the Special Issue Obesity, Nutrition and Dietetics)

Abstract

The effect of supplementation with 1% conjugated linoleic acid and 1% n-3 long chain polyunsaturated fatty acids (CLA/n-3) was assessed in rats. Food intake increased with no difference in body weights. White adipose tissue weights were reduced whereas brown adipose tissue and uncoupling protein-1 expression were increased. Plasma adiponectin, triglyceride and cholesterol levels were reduced while leptin, ghrelin and liver weight and lipid content were unchanged. Hypothalamic gene expression measurements revealed increased expression of orexigenic and decreased expression of anorexigenic signals. Thus, CLA/n-3 increases food intake without affecting body weight potentially through increasing BAT size and up-regulating UCP-1 in rats.
Keywords: conjugated linoleic acid; n-3 long chain polyunsaturated fatty acid; white adipose tissue; brown adipose tissue; hypothalamus; brain conjugated linoleic acid; n-3 long chain polyunsaturated fatty acid; white adipose tissue; brown adipose tissue; hypothalamus; brain
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sneddon, A.A.; Rayner, D.V.; Mitchell, S.E.; Bashir, S.; Ha, J.-H.; Wahle, K.W.; Morris, A.C.; Williams, L.M. Dietary Supplementation with Conjugated Linoleic Acid Plus n-3 Polyunsaturated Fatty Acid Increases Food Intake and Brown Adipose Tissue in Rats. Nutrients 2009, 1, 178-196.

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