Abstract We examined the independent associations among abdominal adipose tissue (AT), liver fat, cardiorespiratory fitness (CRF), and lipid variables in 161 Caucasian men who had a wide variation in adiposity. We measured AT and liver fat by computed tomography and CRF by a maximal exercise test on a treadmill. Visceral AT remained a significant ( P ≤ 0.05) predictor of plasma triglycerides (TG), high-density-lipoprotein cholesterol (HDL-C), and total cholesterol (TC)/HDL-C ratio (TC/HDL-C) after statistical control for abdominal subcutaneous AT, CRF, and alcohol consumption. Abdominal subcutaneous AT was not a significant ( P ≥ 0.05) correlate of any lipid variable after control for visceral AT and CRF. Furthermore, subdivision of subcutaneous AT into deep and superficial depots did not alter these observations. Visceral AT was the strongest correlate of liver fat and remained so after control for abdominal subcutaneous AT, CRF, and alcohol consumption ( r = −0.34, P < 0.01). In contrast, abdominal subcutaneous AT and CRF were not significant ( P > 0.10) correlates of liver fat after control for visceral AT. Visceral AT remained a significant ( P < 0.01) correlate of TG, HDL-C, and TC/HDL-C independent of liver fat. However, liver fat was also a significant correlate ( P ≤ 0.05) of fasting glucose and TG independent of visceral AT. These observations reinforce the importance of visceral obesity in the pathogenesis of dyslipidemia in men, and they suggest that visceral AT and liver fat carry independent health risk. abdominal adipose tissue cardiorespiratory fitness metabolic risk Footnotes Address for reprint requests and other correspondence: R. Ross, School of Physical and Health Education, Queen's Univ., Kingston, Ontario, Canada K7L 3N6 (E-mail: email@example.com ). The costs of publication of this article were defrayed in part by the payment of page charges. The article must therefore be hereby marked “ advertisement ” in accordance with 18 U.S.C. Section 1734 solely to indicate this fact. First published January 28, 2003;10.1152/ajpendo.00442.2002 Copyright © 2003 the American Physiological Society
AJP - Endocrinology and Metabolism – The American Physiological Society
Published: Jun 1, 2003
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