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Genetic Variants of Innate Immunity Receptors Are Associated with Mortality in Cirrhotic Patients with Bacterial Infection

Overview
Journal Liver Int
Specialty Gastroenterology
Date 2020 Jan 29
PMID 31991025
Citations 5
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Abstract

Background & Aims: Acute-on-chronic liver failure (ACLF) is characterized by acute decompensation of cirrhosis (AD), organ failure(s) and high risk of short-term mortality with bacterial infection frequently as precipitating event. Innate immune pattern recognition receptors and members of the lectin pathway of complement activation are crucial to the innate immune response to pathogens. The aim of this study was to investigate whether single nucleotide polymorphisms (SNPs) of innate immune components are associated with the occurrence of bacterial infections or mortality in patients with cirrhosis hospitalized for AD or ACLF.

Methods: Twenty-one innate immunity SNPs with known functional implications were genotyped in 826 AD/ACLF patients included in the CANONIC study. Associations between baseline characteristics of the patients, the occurrence of bacterial infections and survival rate at 90 days of follow-up in relation to the innate immunity genetic variants were analysed.

Results: The NOD2-G908R genetic variant was associated with mortality (HR 2.25, P = .004) independently of age and MELD Score. This association was also found in a predefined subgroup analysis in patients with bacterial infections (HR 2.78, P < .001) along with MBL_Yx (HR 1.72, P = .008) and MASP2_371 (HR 1.67, P = .012) genetic variants. None of the analysed SNPs were significantly associated with the occurrence of acute bacterial infections or spontaneous bacterial peritonitis in particular.

Conclusions: Innate immune system-specific NOD2-G908R, MBL_Yx and MASP2_371 genetic variants were independently associated with increased risk of short-term mortality in AD/ACLF patients with bacterial infection.

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References
1.
de Rooij B, van Hoek B, Ten Hove W, Roos A, Bouwman L, Schaapherder A . Lectin complement pathway gene profile of donor and recipient determine the risk of bacterial infections after orthotopic liver transplantation. Hepatology. 2010; 52(3):1100-10. DOI: 10.1002/hep.23782. View

2.
Ponziani F, Zocco M, Cerrito L, Gasbarrini A, Pompili M . Bacterial translocation in patients with liver cirrhosis: physiology, clinical consequences, and practical implications. Expert Rev Gastroenterol Hepatol. 2018; 12(7):641-656. DOI: 10.1080/17474124.2018.1481747. View

3.
Foldi I, Tornai T, Tornai D, Sipeki N, Vitalis Z, Tornai I . Lectin-complement pathway molecules are decreased in patients with cirrhosis and constitute the risk of bacterial infections. Liver Int. 2017; 37(7):1023-1031. DOI: 10.1111/liv.13368. View

4.
Altorjay I, Vitalis Z, Tornai I, Palatka K, Kacska S, Farkas G . Mannose-binding lectin deficiency confers risk for bacterial infections in a large Hungarian cohort of patients with liver cirrhosis. J Hepatol. 2010; 53(3):484-91. DOI: 10.1016/j.jhep.2010.03.028. View

5.
Bernardi M, Moreau R, Angeli P, Schnabl B, Arroyo V . Mechanisms of decompensation and organ failure in cirrhosis: From peripheral arterial vasodilation to systemic inflammation hypothesis. J Hepatol. 2015; 63(5):1272-84. DOI: 10.1016/j.jhep.2015.07.004. View