• Cell metabolism · Aug 2014

    Comment

    Control of gluconeogenesis by metformin: does redox trump energy charge?

    • Joseph A Baur and Morris J Birnbaum.
    • Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: baur@mail.med.upenn.edu.
    • Cell Metab. 2014 Aug 5;20(2):197-9.

    AbstractMetformin is the most widely prescribed drug to lower glucose in type II diabetics, yet its mechanism of action remains controversial. A new study reveals that metformin inhibits mitochondrial glycerol-3-phosphate dehydrogenase, triggering reduction of the cytosolic NADH/NAD(+) pool and impaired utilization of redox-dependent substrates for gluconeogenesis (Madiraju et al., 2014).Copyright © 2014 Elsevier Inc. All rights reserved.

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