Abstract
Background
Alcoholic hepatitis (AH) is a serious clinical syndrome often associated with muscle wasting. Myostatin, a member of the transforming growth factor-β superfamily, has been studied in diseases with muscle wasting; however, the role of myostatin in AH is unknown.
Aims
To investigate the association between myostatin, clinical variables, and outcomes in AH.
Methods
We analyzed data for cases of AH and controls of heavy drinkers (HD) in TREAT001 (NCT02172898) with serum myostatin levels (AH: n = 131, HD: n = 124). We compared characteristics between the two groups at baseline, 30, and 90 days and explored correlations between myostatin and clinical variables. We then modeled the relationship of myostatin to other variables, including mortality.
Results
Baseline median myostatin was lower in AH compared to HD (males: 1.58 vs 3.06 ng/ml, p < 0.001; females: 0.84 vs 2.01 ng/ml, p < 0.001). In multivariable linear regression, bilirubin, WBC, and platelet count remained negatively correlated with myostatin in AH. AH females who died at 90 days had significantly lower myostatin, but in a multivariable logistic model with MELD and myostatin, only MELD remained significantly associated with 90-day mortality. During 1-year follow-up, AH cases (n = 30) demonstrated an increase in myostatin (mean, 1.73 ng/ml) which correlated with decreasing MELD scores (ρ = − 0.42, p = 0.01).
Conclusions
Myostatin levels are significantly lower in AH compared to HD and are negatively correlated with total bilirubin, WBC, and platelet count. Myostatin increased as patients experienced decreases in MELD. Overall, myostatin demonstrated a dynamic relationship with AH outcomes and future studies are needed to understand the prognostic role of myostatin in AH.
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Abbreviations
- AH:
-
Alcoholic hepatitis
- HD:
-
Heavy drinking
- TREAT001:
-
Translational Research and Evolving Alcoholic Hepatitis Treatment 001 Study
- INR:
-
International normalized ratio
- WBC:
-
White blood cells
- ALT:
-
Alanine aminotransferase
- AST:
-
Aspartate aminotransferase
- ALP:
-
Alkaline phosphatase
- MELD:
-
Model for End-Stage Liver Disease
- DF:
-
Discriminate factor
- TGF-®:
-
Transforming growth factor-®
- GDF-8:
-
Growth differentiation factor-8
- ELISA:
-
Enzyme-linked immunosorbent assay
- AIC:
-
Akaike information criterion
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Funding
APD is funded by the American Association for the Study of Liver Disease Foundation’s 2017 Career Development Award. Collection of serum samples and serum myostatin analysis was funded by the NIH 3U01AA021840-07S1.
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For full disclosure, Dr. Naga Chalasani has ongoing paid consulting activities (or had in preceding 12 months) with NuSirt, Abbvie, Afimmune (DS Biopharma), Allergan (Tobira), Madrigal, Siemens, Foresite, Galectin, Zydus, and La Jolla. These consulting activities are generally in the areas of nonalcoholic fatty liver disease and drug hepatotoxicity. Dr. Chalasani receives research grant support from Exact Sciences, Intercept, and Galectin Therapeutics where his institution receives the funding. Over the last decade, Dr. Chalasani has served as a paid consultant to more than 35 pharmaceutical companies and these outside activities have regularly been disclosed to his institutional authorities.
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Shamseddeen, H., Madathanapalli, A., Are, V.S. et al. Changes in Serum Myostatin Levels in Alcoholic Hepatitis Correlate with Improvement in MELD. Dig Dis Sci 66, 3062–3073 (2021). https://doi.org/10.1007/s10620-020-06632-5
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DOI: https://doi.org/10.1007/s10620-020-06632-5