| Title: Conjugated linoleic acid supplementation, insulin sensitivity, and lipoprotein metabolism in patients with type 2 diabetes mellitus. Author(s): Moloney F, Yeow TP, Mullen A, Nolan JJ, Roche HM. Source: Am J Clin Nutr. 2004 Oct;80(4):887-95. Content: Nutrigenomics Research Group, Department of Clinical Medicine, Trinity Centre for Health Sciences, Dublin, Ireland. BACKGROUND: Some animal studies have suggested that conjugated linoleic acid (CLA) supplementation may have therapeutic potential with respect to insulin sensitivity and lipid metabolism, which are important cardiovascular disease (CVD) risk factors associated with type 2 diabetes mellitus. OBJECTIVE: We investigated the effect of CLA supplementation on markers of glucose and insulin metabolism, lipoprotein metabolism, and inflammatory markers of CVD in subjects with type 2 diabetes. DESIGN: The study was a randomized, double-blind, placebo-controlled trial. Thirty-two subjects with stable, diet-controlled type 2 diabetes received CLA (3.0 g/d; 50:50 blend of cis-9,trans-11 CLA and trans-10,cis-12 CLA) or control for 8 wk. A 3-h 75-g oral-glucose-tolerance test was performed, and fasting plasma lipid concentrations and inflammatory markers were measured before and after the intervention. RESULTS: CLA supplementation significantly increased fasting glucose concentrations (6.3%; P < 0.05) and reduced insulin sensitivity as measured by homeostasis model assessment, oral glucose insulin sensitivity, and the insulin sensitivity index (composite) (P = 0.05). Total HDL-cholesterol concentrations increased by 8% (P < 0.05), which was due to a significant increase in HDL(2)-cholesterol concentrations (P < 0.05). The ratio of LDL to HDL cholesterol was significantly reduced (P < 0.01). CLA supplementation reduced fibrinogen concentrations (P < 0.01) but had no effect on the inflammatory markers of CVD (C-reactive protein and interleukin 6). CONCLUSIONS: CLA supplementation had an adverse effect on insulin and glucose metabolism. Whereas CLA had positive effects on HDL metabolism and fibrinogen, a therapeutic nutrient should not be associated with potentially adverse effects on other clinical markers of type 2 diabetes. More/Expanded Article Information: [ click here ] Click Here To View A Conjugated Linoleic Acid (CLA) Supplier Website! |
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Many studies reported herein have been performed on laboratory animals and not on humans. While some results of animal trials are later found to be similar in human trials, we have no way of knowing whether or not this will be the case. This information is not presented as medical advice and no conclusions regarding the effectiveness or lack of such should be drawn from this information. As with any information that pertains to your health, please discuss your questions and/or conclusions with your physician or healthcare provider. You can order Tonalin CLA for fat loss! |
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