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  1. Article

    Open Access

    Distribution of dietary nitrate and its metabolites in rat tissues after 15N-labeled nitrate administration

    The reduction pathway of nitrate (NO3) and nitrite (NO2) to nitric oxide (NO) contributes to regulating many physiological processes. To examine the rate and extent of dietary nitrate absorption and its reducti...

    Ji Won Park, Barbora Piknova, Peter J. Walter, Hongyi Cai in Scientific Reports (2023)

  2. Article

    Longitudinal multi-omics analyses of the gut–liver axis reveals metabolic dysregulation in hepatitis C infection and cirrhosis

    The gut and liver are connected via the portal vein, and this relationship, which includes the gut microbiome, is described as the gut–liver axis. Hepatitis C virus (HCV) can infect the liver and cause fibrosi...

    Rabab O. Ali, Gabriella M. Quinn, Regina Umarova, James A. Haddad in Nature Microbiology (2023)

  3. Article

    Open Access

    Moderate levels of 5-fluorocytosine cause the emergence of high frequency resistance in cryptococci

    The antifungal agent 5-fluorocytosine (5-FC) is used for the treatment of several mycoses, but is unsuitable for monotherapy due to the rapid development of resistance. Here, we show that cryptococci develop r...

    Yun C. Chang, Ami Khanal Lamichhane, Hongyi Cai, Peter J. Walter in Nature Communications (2021)

  4. Article

    Metformin improves blood glucose by increasing incretins independent of changes in gluconeogenesis in youth with type 2 diabetes

    Metformin is the only approved oral agent for youth with type 2 diabetes but its mechanism of action remains controversial. Recent data in adults suggest a primary role for the enteroinsular pathway, but there...

    Celeste K. L. Cravalho, Abby G. Meyers, Lilian S. Mabundo, Amber Courville in Diabetologia (2020)