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- W1964108702 abstract "Background & Aims The diagnosis of non-alcoholic fatty liver disease (NAFLD) and steatohepatitis (NASH) is limited by the need for liver biopsy. We aimed at testing the accuracy of cytokeratin-18 fragment (CK-18), adipocyte fatty acid binding protein (AFABP) and fibroblast growth factor 21 (FGF21) for the diagnosis of NAFLD and NASH. Methods 146 patients with biopsy-proven NAFLD and 74 age- and gender-matched healthy controls were included. Serum CK-18, AFABP and FGF21 levels were determined by enzyme-linked immunosorbent assay. Results Serum CK-18, AFABP, and FGF21 increased in a stepwise fashion in control subjects (median 103 U/L, 15.4 ng/ml, and 104 pg/ml), patients with non-NASH NAFLD (263 U/L, 18.9 ng/ml, and 249 pg/ml) and NASH (418 U/L, 19.4 ng/ml, and 354 pg/ml) (p <0.001, 0.060, and 0.016, respectively). The area under receiver-operating characteristics curve to diagnose NAFLD and NASH was 0.91 and 0.70 for CK-18, 0.66 and 0.59 for AFABP, and 0.84 and 0.62 for FGF21. At cut-offs of 203 and 670 U/L, CK-18 had 71% negative predictive value (NPV) and 77% positive predictive value (PPV) to exclude and diagnose NASH. A 2-step approach measuring CK-18 followed by FGF21 further improved the NPV to 74% and PPV to 82%. In a validation cohort of 51 patients with paired liver biopsies, the NPV and PPV of the 2-step approach were 67% and 78%, respectively. Conclusions CK-18 is the most accurate biomarker for NAFLD and NASH. A two-step approach using CK-18 and FGF21 further improves the accuracy in diagnosing NASH. The diagnosis of non-alcoholic fatty liver disease (NAFLD) and steatohepatitis (NASH) is limited by the need for liver biopsy. We aimed at testing the accuracy of cytokeratin-18 fragment (CK-18), adipocyte fatty acid binding protein (AFABP) and fibroblast growth factor 21 (FGF21) for the diagnosis of NAFLD and NASH. 146 patients with biopsy-proven NAFLD and 74 age- and gender-matched healthy controls were included. Serum CK-18, AFABP and FGF21 levels were determined by enzyme-linked immunosorbent assay. Serum CK-18, AFABP, and FGF21 increased in a stepwise fashion in control subjects (median 103 U/L, 15.4 ng/ml, and 104 pg/ml), patients with non-NASH NAFLD (263 U/L, 18.9 ng/ml, and 249 pg/ml) and NASH (418 U/L, 19.4 ng/ml, and 354 pg/ml) (p <0.001, 0.060, and 0.016, respectively). The area under receiver-operating characteristics curve to diagnose NAFLD and NASH was 0.91 and 0.70 for CK-18, 0.66 and 0.59 for AFABP, and 0.84 and 0.62 for FGF21. At cut-offs of 203 and 670 U/L, CK-18 had 71% negative predictive value (NPV) and 77% positive predictive value (PPV) to exclude and diagnose NASH. A 2-step approach measuring CK-18 followed by FGF21 further improved the NPV to 74% and PPV to 82%. In a validation cohort of 51 patients with paired liver biopsies, the NPV and PPV of the 2-step approach were 67% and 78%, respectively. CK-18 is the most accurate biomarker for NAFLD and NASH. A two-step approach using CK-18 and FGF21 further improves the accuracy in diagnosing NASH." @default.
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- W1964108702 date "2012-06-01" @default.
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- W1964108702 title "Non-invasive diagnosis of non-alcoholic steatohepatitis by combined serum biomarkers" @default.
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- W1964108702 doi "https://doi.org/10.1016/j.jhep.2011.12.025" @default.
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