期刊
AMERICAN JOURNAL OF HYPERTENSION
卷 23, 期 11, 页码 1183-1189出版社
OXFORD UNIV PRESS
DOI: 10.1038/ajh.2010.144
关键词
atherosclerosis; blood pressure; endothelium; fatty liver; hypertension; inflammation; stiffness
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease both in the general and pediatric population and has been associated with increased cardiovascular risk. Arterial function and early atherosclerotic changes are markers of cardiovascular disease and independent predictors of the corresponding risk. Through a global approach, we investigated the relationships between NAFLD and functional arterial changes and early atherosclerosis. METHODS A total of 23 consecutive patients (mean age 55 +/- 14 years, 11 males) with biopsy evidence of NAFLD and 28 control subjects matched for age, gender, body mass index, and other cardiovascular risk factors participated in the study. RESULTS Compared to controls, NAFLD subjects had significantly higher carotid-femoral pulse wave velocity (PWV; 8.2 +/- 1.3 m/s vs. 6.9 +/- 1.3 m/s, P =0.001), higher carotid intima-media thickness (IMT; 0.79 +/- 0.18 mm vs. 0.67 +/- 0.13 mm, P=0.01), and reduced flow-mediated dilatation (FMD; 1.92 +/- 2.11% vs. 4.8 +/- 2.43%, P<0.001). In multivariable analysis, presence of NAFLD was an independent determinant of both PWV and FMD, whereas leptin was an independent determinant of PWV (B=0.036, P<0.05), and adiponectin was independently associated with FMD (B=0.104, P<0.05). In addition, histological activity of liver disease expressed by the global Brunt Grade was associated independently with FMD (B = -1.054, P<0.05). CONCLUSIONS NAFLD is associated with arterial stiffness and endothelial dysfunction. Given the important independent prognostic role of these arterial indexes, these findings have important implications for increased cardiovascular risk in patients with NAFLD.
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