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首页> 中文期刊> 《世界肝病学杂志：英文版（电子版）》 >Circulating insulin-like growth factor-binding protein 3 as prognostic biomarker in liver cirrhosis

Circulating insulin-like growth factor-binding protein 3 as prognostic biomarker in liver cirrhosis

         
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AIM: To investigate the prognostic significance of insulin-like growth factor-binding protein 3(IGFBP-3) in patients with cirrhosis.METHODS: Prospective study that included two cohorts: outpatients with stable cirrhosis(n = 138) and patients hospitalized for acute decompensation(n = 189). Development of complications, mortality or liver transplantation was assessed by periodical phone calls and during outpatient visits. The cohort of stable cirrhosis also underwent clinical and laboratory evaluation yearly(2013 and 2014) in predefined study visits. In patients with stable cirrhosis, IGFBP-3 levels were measured at baseline(2012) and at second re-evaluation(2014). In hospitalized subjects, IGFBP-3 levels were measured in serum samples collected in the first and in the third day after admission and stored at-80 ℃. IGFBP-3 levels were measured by immunochemiluminescence.RESULTS: IGFBP-3 levels were lower in hospitalized patients as compared to outpatients(0.94 mcg/mL vs 1.69 mcg/m L, P < 0.001) and increased after liver transplantation(3.81 mcg/m L vs 1.33 mcg/mL, P = 0.008). During the follow-up of the stable cohort, 17 patients died and 11 received liver transplantation. Bivariate analysis showed that death or transplant was associated with lower IGFBP-3 levels(1.44 mcg/mL vs 1.74 mcg/m L, P = 0.027). The Kaplan-Meier transplant-free survival probability was 88.6% in patients with IGFBP-3 ≥ 1.67 mcg/mL and 72.1% for those with IGFBP3 < 1.67 mcg/mL(P = 0.015). In the hospitalized cohort, 30-d mortality was 24.3% and was independently associated with creatinine, INR, SpO_2/FiO_2 ratio and IGFBP-3 levels in the logistic regression. The 90-d transplant-free survival probability was 80.4% in patients with IGFBP-3 ≥ 0.86 mcg/mL and 56.1% for those with IGFBP3 < 0.86 mcg/mL(P < 0.001). CONCLUSION: Lower IGFBP-3 levels were associated with worse outcomes in patients with cirrhosis, and might represent a promising prognostic tool that can be incorporated in clinical practice.

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