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  • Title: Alanine aminotransferase and gamma-glutamyl transferase are associated with the metabolic syndrome but not with angiographically determined coronary atherosclerosis.
    Author: Saely CH, Vonbank A, Rein P, Woess M, Beer S, Aczel S, Jankovic V, Boehnel C, Risch L, Drexel H.
    Journal: Clin Chim Acta; 2008 Nov; 397(1-2):82-6. PubMed ID: 18708042.
    Abstract:
    BACKGROUND: Recently, elevated liver enzymes have attracted great interest as potential novel markers of cardiovascular risk. Their association with angiographically determined coronary artery disease (CAD) is unknown. METHODS: We enrolled 1000 consecutive patients undergoing coronary angiography for the evaluation of suspected or established stable CAD. The metabolic syndrome (MetS) was defined according to ATP-III criteria; significant CAD was diagnosed in the presence of coronary stenoses with lumen narrowing >or=50%. RESULTS: Serum alanine aminotransferase (ALT), the ALT/aspartate aminotransferase (AST) ratio, and serum gamma-glutamyl transferase (GGT) were significantly higher in patients with the MetS than in subjects without the MetS (34+/-21 vs. 29+/-20 U/l; p<0.001, 1.16+/-0.39 vs. 1.00+/-0.36 U/l, p<0.001; and 53+/-88 vs. 43+/-57 U/l, p=0.001, respectively) but were similar in patients with significant CAD as in those who did not have significant CAD at angiography (p=0.592; p=0.731, and p=0.716, respectively). Analysis of covariance after multivariate adjustment including alcohol consumption confirmed that ALT, ALT/AST ratio, and GGT were significantly and independently associated with the MetS but not with significant CAD. CONCLUSIONS: ALT, the ALT/AST ratio, and GGT are associated with the MetS but not with angiographically determined coronary atherosclerosis.
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