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Atherosclerosis. 1997 Feb 28;129(1):53-8.

Increased plasma cholesteryl ester transfer activity in obese children.

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Department of Pediatrics, Yamanashi Medical University, Nakakoma, Japan.


To determine whether enhanced activity of cholesteryl ester transfer protein (CETP) contributes to the development of atherogenic lipoprotein profiles in obese children, plasma CETP activity was assayed according to a micro-method, by co-incubating lipoprotein-deficient samples with exogenous donor and acceptor lipoproteins. The study subjects were 31 obese children (14 males and 17 females). Serum levels of triglycerides, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), TC:high-density lipoprotein (HDL)-C, LDL-C:HDL-C, apolipoprotein (apo) B, and apo B:apo Al were increased in obese children. Thus they appeared to exhibit an atherogenic lipoprotein profile, with a relative decrease in cholesterol carried by HDL compared with the cholesterol in the other lipoprotein fractions. The mean fasting plasma insulin level was also increased. CETP activity was significantly higher in the obese children than in nonobese control children, and was correlated with LDL-C, TC:HDL-C, LDL-C:HDL-C, and apo B:apo Al. These results suggest that an increase in plasma CETP activity results in atherogenic change in lipoprotein metabolism in obese children. The increase in CETP may be due to the adiposity or insulin resistance. Alternatively, dyslipidemia per se, physical inactivity or excessive fat intake, that are commonly found in obese children, may contribute to the increase in CETP activity.

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