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Insufficiency of phosphatidylethanolamine N-methyltransferase is risk for lean non-alcoholic steatohepatitis

Scientific Reports, ISSN: 2045-2322, Vol: 6, Issue: 1, Page: 21721
2016
  • 42
    Citations
  • 0
    Usage
  • 62
    Captures
  • 55
    Mentions
  • 8
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    42
  • Captures
    62
  • Mentions
    55
    • News Mentions
      55
      • 55
  • Social Media
    8
    • Shares, Likes & Comments
      8
      • Facebook
        8

Most Recent News

Okayama University Research: Lack of Enzyme Promotes Fatty Liver Disease in Thin Patients

Researchers observe protection against obesity and insulin resistance but at the cost of prominent fatty liver disease in mice lacking the PEMT enzyme and patients

Article Description

Although obesity is undoubtedly major risk for non-alcoholic steatohepatitis (NASH), the presence of lean NASH patients with normal body mass index has been recognized. Here, we report that the insufficiency of phosphatidylethanolamine N-methyltransferase (PEMT) is a risk for the lean NASH. The Pemt-/- mice fed high fat-high sucrose (HFHS) diet were protected from diet-induced obesity and diabetes, while they demonstrated prominent steatohepatitis and developed multiple liver tumors. Pemt exerted inhibitory effects on p53-driven transcription by forming the complex with clathrin heavy chain and p53, and Pemt-/- mice fed HFHS diet demonstrated prominent apoptosis of hepatocytes. Furthermore, hypermethylation and suppressed mRNA expression of F-box protein 31 and hepatocyte nuclear factor 4α resulted in the prominent activation of cyclin D1. PEMT mRNA expression in liver tissues of NASH patients was significantly lower than those with simple steatosis and we postulated the distinct clinical entity of lean NASH with insufficiency of PEMT activities.

Bibliographic Details

Nakatsuka, Atsuko; Matsuyama, Makoto; Yamaguchi, Satoshi; Katayama, Akihiro; Eguchi, Jun; Murakami, Kazutoshi; Teshigawara, Sanae; Ogawa, Daisuke; Wada, Nozomu; Yasunaka, Tetsuya; Ikeda, Fusao; Takaki, Akinobu; Watanabe, Eijiro; Wada, Jun

Springer Science and Business Media LLC

Multidisciplinary

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