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KMID : 0624620090420090605
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BMB Reports
2009 Volume.42 No. 9 p.605 ~ p.610
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Enhanced functional and structural properties of high-density lipoproteins from runners and wrestlers compared to throwers and lifters
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Lee Hwa-Hyung
Park Jeong-Euy
Choi In-Ho
Cho Kyung-Hyun
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Abstract
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Plasma high-density lipoprotein cholesterol (HDL-C) levels are inversely correlated with the risk of cardiovascular disease, and are known to increase with repetitive exercise. In the current study, HDL fractions from athletes’ sera were isolated and compared as a function of the type of sport (runners [n = 10], throwers [n = 10], wrestlers [n = 10], and weight lifters [n = 8]), and as an age- and gender-matched reference group (n = 14). Among athletes, HDL from runners had the strongest antioxidant activity. Immunodetection showed that runners and wrestlers had the highest levels of apoA-I and lowest levels of apoA-II in their HDL. Electron microscopy also revealed that HDL2 of runners and wrestlers were the largest in size. In conclusion, although all athlete groups had significantly better serum lipid/lipoprotein profiles than the reference group, runners and wrestlers had the most desirable lipoprotein function and structure, including antioxidant activity, HDL-associated enzyme activities and increased particle size.
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KEYWORD
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Antioxidant, Apolipoproteins, Cholesteryl ester transfer protein, High-density lipoproteins
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