Abstract
Background
Accurately evaluating liver fibrosis in patients with non-alcoholic fatty liver disease (NAFLD) is important for identifying those who may develop complications. The aims of this study were (1) to measure serum Wisteria floribunda agglutinin-positive Mac-2 binding protein (WFA+-M2BP) using the glycan sugar chain-based immunoassay and (2) to compare the results with clinical assessments of fibrosis.
Methods
Serum WFA+-M2BP values were retrospectively evaluated in 289 patients with NAFLD who had undergone liver biopsy. Histological findings were evaluated by three blinded, experienced liver-specific pathologists.
Results
For stages 0 (n = 35), 1 (n = 113), 2 (n = 49), 3 (n = 41), and 4 (n = 51) of liver fibrosis, the serum WFA+-M2BP cutoff indexes were 0.57, 0.70, 1.02, 1.57, and 2.96, respectively. Multivariate regression analysis showed that serum WFA+-M2BP values were associated with the stage of fibrosis (≥stage 2). The areas under the receiver operating characteristic curve (AUROC), sensitivity, and specificity of serum WFA+-M2BP were 0.876, 85.9, and 74.6 %, respectively, for severe fibrosis (≥stage 3) and were 0.879, 74.6, and 87.0 %, respectively, for cirrhosis. When compared with six non-invasive conventional markers, serum WFA+-M2BP had the greatest AUROC for diagnosing severe fibrosis and cirrhosis.
Conclusions
Serum WFA+-M2BP values are useful for assessing the stage of liver fibrosis in patients with NAFLD.
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Acknowledgments
This study was supported by a Grant-in-Aid from the Ministry of Health, Labour, and Welfare of Japan. This research was performed by the Hepatitis Glyco-biomarker Study Group.
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The authors declare that they have no conflict of interest.
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Abe, M., Miyake, T., Kuno, A. et al. Association between Wisteria floribunda agglutinin-positive Mac-2 binding protein and the fibrosis stage of non-alcoholic fatty liver disease. J Gastroenterol 50, 776–784 (2015). https://doi.org/10.1007/s00535-014-1007-2
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DOI: https://doi.org/10.1007/s00535-014-1007-2