id author title date pages extension mime words sentences flesch summary cache txt cord-345359-okmkgsbr Ohno, Marumi Influenza virus infection affects insulin signaling, fatty acid-metabolizing enzyme expressions, and the tricarboxylic acid cycle in mice 2020-07-02 .txt text/plain 6474 314 45 After infecting mice with intranasal applications of 500 plaque-forming units of A/Puerto Rico/8/34 (H1N1; PR8) virus, the serum levels of most intermediates in the tricarboxylic acid (TCA) cycle and related metabolic pathways were significantly reduced. www.nature.com/scientificreports/ investigated metabolic changes by determining the serum levels of metabolites, insulin sensitivity in the liver, glucose availability, and hepatic gene expressions in the early stages of symptom onset as well as the lethal phase of influenza in a mouse model. The results of this study indicate that influenza virus infection dysregulates glucose and fatty acid metabolism and decreases tricarboxylic acid (TCA) cycle activity, leading to enhanced degradation of adenosine triphosphate (ATP) and guanosine triphosphate (GTP). Metabolites that were present at reduced levels in the sera of PR8 virus-infected mice were mainly related to the TCA cycle, urea cycle, and amino acid metabolism, as indicated by the serum levels of metabolite in these pathways at 1, 3, and 6 dpi (Fig. 2) . ./cache/cord-345359-okmkgsbr.txt ./txt/cord-345359-okmkgsbr.txt