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Genetic background of liver cirrhosis complications
Šenkeříková, Renáta ; Špičák, Julius (advisor) ; Brůha, Radan (referee) ; Husová, Libuše (referee)
Liver cirrhosis represents the end stage of most chronic liver diseases. The course of the disease and its complications can be significantly influenced by host genetic factors and the severity of portal hypertension (PH). The aim of the study was to describe the role of genetic factors influencing the progression and complications of liver disease and to determine the role of non-invasive assessment of the stage of liver fibrosis and severity of PH and their correlation with portosystemic gradient (HVPG) measurements. We first focused on the role of allelic variants in TLR4 signalling pathway genes in the risk of occurrence of severe bacterial infections in patients with advanced liver cirrhosis, liver transplant (LT) candidates. We found that the TNFA c.-238G/A promoter variant significantly reduced the risk of bacterial infections and was associated with a decreased mortality rate. We further investigated the role of the variant G allele in PNPLA3 gene in the progression of chronic liver failure and the need for LT in patients with liver cirrhosis due to HCV infection. As a result, we found that the carriage of the variant G allele led to a faster progression of chronic liver failure and the need for LT at a younger age. Third, we investigated whether the efficacy of triple combination treatment...

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