Journal
CURRENT DIABETES REPORTS
Volume 11, Issue 3, Pages 167-172Publisher
CURRENT MEDICINE GROUP
DOI: 10.1007/s11892-011-0190-2
Keywords
Fatty liver; Nonalcoholic fatty liver disease (NAFLD); Magnetic resonance spectroscopy; FFA
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Funding
- Angela Musazzi and Mario Stellato family
- European Federation for the Study of Diabetes (EFSD)
- Novo Nordisk
- Guidotti
- Novartis
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Based on the lipotoxic hypothesis, the free fatty acid flux from the excessive amount of adipose tissue toward the peripheral tissues would induce the development of insulin resistance especially when the triglyceride storage or the concentration of intermediate fat metabolites (diacylglycerides, ceramides) within the cytoplasm of these cells become excessive. Nonalcoholic fatty liver disease (NAFLD) includes a wide spectrum of liver damage, ranging from simple steatosis to steatohepatitis and advanced fibrosis. NAFLD is associated with general and intra-abdominal obesity and with a reduced ability of insulin to stimulate metabolic pathways in the liver itself and in other tissues. There are animal models and models in human diseases sustaining the hypothesis that a primary hepatic disease may determine the development of type 2 diabetes (T2DM). Epidemiologic data generated on surrogate markers of NAFLD (transaminases and gamma-glutamyltransferase), semiquantitative assessment of fatty liver (ultrasound), and surrogate algorithms of NAFLD also support a causative effect of NAFLD on the risk to develop T2DM. In spite of the presence of these indirect associations, a clear-cut link between NAFLD and abnormal beta-cell function is yet to be reported. Therefore, more data are warranted to prove what is considered a likely causative relationship between NAFLD and T2DM.
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