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  • Title: Effects of conjugated linoleic acid supplementation and exercise on post-heparin lipoprotein lipase, butyrylcholinesterase, blood lipid profile and glucose metabolism in young men.
    Author: Bulut S, Bodur E, Colak R, Turnagol H.
    Journal: Chem Biol Interact; 2013 Mar 25; 203(1):323-9. PubMed ID: 23073171.
    Abstract:
    This study was designed to investigate the effects of conjugated linoleic acid (CLA) supplementation and endurance exercise training-induced changes on post-heparin lipoprotein lipase (PH-LPL) and butyrylcholinesterase (BChE) activities along with leptin, insulin and lipid levels in plasma by a randomized double blind experiment. Eighteen sedentary male volunteers were randomly divided into CLA and Placebo (PLC) supplementation groups. Both groups underwent daily supplementation of either 3g CLA or 3g placebo for 30 days, respectively, and performed exercise on a bicycle ergometer 3 times per week for 30-40 min at 50% VO2 peak workload. For plasma glucose, insulin and leptin levels and BChE activity fasting blood was used. For PH-LPL measurements, blood was collected 15 min after 50 IU/kg iv heparin injection. In all groups, there is a statistically significant decrease in BChE (p = 0.03, p = 0.02) and leptin (p = 0.002), insulin and HOMA-IR levels (p = 0.02). Exercise with or without CLA supplementation decreased insulin levels and increased insulin sensitivity. PH-LPL activity was increased significantly in both groups, displaying increased fatty acid mobilization. We conclude that though CLA supplementation and exercise can affect these parameters, CLA is not more effective than exercise alone. Hence, a prolonged supplementation regime may be more effective. Taken together in our small study group, our findings display that BChE is a potential marker for synthetic function of liver, fat metabolism, an obesity marker, a function long overlooked.
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