Transmission of oral microbiota to the biliary tract during endoscopic retrograde cholangiography.

Background: Endoscopic retrograde cholangiography (ERC) possesses a translocation risk of microbes to the biliary system. We studied bile contamination during ERC and its impact on patients' outcome in a real-life-situation.

Methods: Ninety-nine ERCs were analyzed and microbial samples were taken from the throat before and from bile during ERC and from irrigation fluid of the duodenoscope before and after ERC.

Hepatitis C virus eradication with direct-acting antiviral improves insulin resistance.

Sustained virological response (SVR) after interferon-based therapy is associated with improvement of insulin resistance (IR) in HCV-infected patients. Few data are available in the direct-acting antivirals (DAAs) era, especially in cirrhotic patients. We prospectively evaluated the long-term effect of DAAs on IR.

Disease burden of hepatitis C in the Austrian state of Tyrol - Epidemiological data and model analysis to achieve elimination by 2030.

Background: In 2016, the World Health Organization (WHO) and 69th World Health Assembly approved the first global health sector strategy (GHSS) on viral hepatitis with the goal to eliminate hepatitis C virus (HCV) infections worldwide. The aim is a 90% reduction of new infections and 65% reduction of HCV-related deaths by 2030.

Aim: This study reports on the epidemiology of HCV infections in the Austrian state of Tyrol (total population 750,000) and uses a predictive model to identify how the WHO strategy for elimination of HCV can be achieved.

Long-term follow-up of ribavirin-free DAA-based treatment in HCV recurrence after orthotopic liver transplantation.

Background & Aims: Excellent efficacy and safety profile of second-generation DAA combinations improved treatment of chronic hepatitis C (HCV) as well as in HCV recurrence after orthotopic liver transplantation (OLT). The need of ribavirin addition is under debate as anaemia and decreased renal function are prevalent in transplant cohorts. The aim of this study was thus to assess safety and long-term efficacy of RBV-free DAA combinations in HCV-recurrent patients after OLT.

Follow-up of sustained virological responders with hepatitis C and advanced liver disease after interferon/ribavirin-free treatment.

Background: The introduction of direct-acting antivirals (DAA) has increased sustained virological response (SVR) rates in patients with advanced liver disease and chronic hepatitis C(CHC)infection. At present, data on clinical outcome and long-term durability of viral eradication after successful DAA therapy are scarce.

Aim: To evaluate the long-term success of viral eradication in patients with advanced fibrosis or cirrhosis treated with DAAs.

Serotonin improves glucose metabolism by Serotonylation of the small GTPase Rab4 in L6 skeletal muscle cells.

Background: Serotonin (5-HT) improves insulin sensitivity and glucose metabolism, however, the underlying molecular mechanism has remained elusive. Previous studies suggest that 5-HT can activate intracellular small GTPases directly by covalent binding, a process termed serotonylation. Activated small GTPases have been associated with increased GLUT4 translocation to the cell membrane.

DAA-based antiviral treatment of patients with chronic hepatitis C in the pre- and postkidney transplantation setting.

DAA-based regimens for chronic hepatitis C infection encourage treatment of "difficult-to-treat" cohorts. This study investigated efficacy and safety of DAA-based regimens in HCV patients on dialysis or postkidney or liver/kidney transplantation. Twenty-five patients treated with DAA combinations were evaluated: 10 were on dialysis (eight: hemodialysis, two: peritoneal dialysis), eight were kidney transplant recipients, and seven were liver/kidney transplant recipients.

Postprandial lipemia induces pancreatic α cell dysfunction characteristic of type 2 diabetes: studies in healthy subjects, mouse pancreatic islets, and cultured pancreatic α cells.

Background: Type 2 diabetes is associated with pancreatic α cell dysfunction, characterized by elevated fasting plasma glucagon concentrations and inadequate postprandial glucose- and insulin-induced suppression of glucagon secretion. The cause and the underlying mechanisms of α cell dysfunction are unknown.

Objective: Because Western dietary habits cause postprandial lipemia for a major part of a day and, moreover, increase the risk of developing type 2 diabetes, we tested the hypothesis that postprandial lipemia with its characteristic elevation of triglyceride-rich lipoproteins (TGRLs) might cause pancreatic α cell dysfunction.

Quantitative analysis of volatile organic compounds released and consumed by rat L6 skeletal muscle cells in vitro.

Knowledge of the release of volatile organic compounds (VOCs) by cells provides important information on the origin of VOCs in exhaled breath. Muscle cells are particularly important, since their release of volatiles during the exertion of an effort contributes considerably to breath concentration profiles. Presently, the cultivation of human skeletal muscle cells is encountering a number of obstacles, necessitating the use of animal muscle cells in in vitro studies.

The effects of psychotropic drugs on the regulation of glucose metabolism.

Psychotropic drugs, like antipsychotics and antidepressants, are often associated with metabolic side effects such as weight gain and an increased risk of the development of diabetes and an atherogenic lipid profile. These adverse effects not only bear a high cardiovascular risk and lead to higher morbidity and mortality, but are an additional burden to mentally ill patients and can be a decisive factor for the compliance and, consequently, the success of the therapy. Second generation antipsychotics (SGAs), in particular, clozapine and olanzapine, lead to significant weight gain and impair glucose metabolism.