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    Exercise mimic molecule may help treat diabetes and obesity

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    yoly
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    Exercise mimic molecule may help treat diabetes and obesity

    Post by yoly on Tue Jul 28 2015, 12:05

    (Better just exercise)

    27 July 2015

    Scientists from the University of Southampton have developed a molecule that acts as an exercise mimic, which could potentially help treat type 2 diabetes and obesity.

    The new molecule, called ‘compound 14’, inhibits the function of a cellular enzyme called ATIC, which is involved in metabolism, leading to the build-up of a molecule called ZMP in cells. This increase in ZMP makes cells think that they have run out of energy by activating the cell’s central energy sensor, known as AMPK, thereby causing cells to try and increase their energy levels by increasing glucose uptake and metabolism.

    Publishing in the journal Chemistry and Biology, the researchers found that activating AMPK with compound 14 led to a reduction in fasting blood glucose levels, improved glucose tolerance and, at the same time, promoted weight loss in obese mice.
    Ali Tavassoli


    Ali Tavassoli, Professor of Chemical Biology at the University of Southampton whose research team discovered and developed compound 14, says: “There is a lot of evidence from previous studies that if you could selectively activate AMPK with a small molecule, it could have potential benefits in the treatment of several diseases, including type 2 diabetes, by acting as an exercise mimetic and increasing the uptake and usage of glucose and oxygen by cells. Our molecule, which activates AMPK by altering cellular metabolism, therefore holds much promise as a potential therapeutic agent.”

    In early encouraging tests, the molecule was given to two groups of mice who were fed either a normal diet or a high-fat diet making them obese and impairing their glucose tolerance (one of the clinical signs of pre-diabetes). When mice with a normal diet were treated with compound 14, their blood glucose levels and weight remained normal. However, in obese mice on the high-fat diet a single dose of compound 14 resulted in lowering their elevated blood glucose close to near normal levels. Furthermore, a daily dose of compound 14 administered for seven days to the obese mice resulted in improved glucose tolerance and 1.5 grams weight loss (about five per cent body weight). Compound 14 did not affect the weight of those mice on the normal diet.

    Dr Felino Cagampang, Associate Professor in Integrative Physiology at the University of Southampton and study co-author, adds: “Current treatments for type 2 diabetes centres on elevating circulating insulin levels or improving the insulin sensitivity of an individual. The issue is that established drugs do not successfully enable patients with type 2 diabetes to achieve glycaemic control and some can even result in weight gain, a leading factor driving the diabetes epidemic. In contrast, this new molecule seems to reduce glucose levels and at the same time decrease body weight, but only if the subject is obese.”

    The next step for the researchers is to develop the molecule further to examine the effect of long-term treatment and its mode of action in improving glucose tolerance and in reducing body weight. If found to be safe, a drug could be developed to help those with diabetes and obesity manage their condition.

    The study was funded by the Engineering and Physical Sciences Research Council (EPSRC), Cancer Research UK, Medical Research Council and Diabetes UK.

    http://www.southampton.ac.uk/news/2015/07/ali-tavassoli-compound-14.page
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    chris c
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    Re: Exercise mimic molecule may help treat diabetes and obesity

    Post by chris c on Thu Aug 06 2015, 19:25

    One of the many functions of metformin is to affect AMPK.
    Metformin is generic and cheap as chips. I spy an attempt to produce "Son Of Metformin" at an astonishingly high price . . .

      Current date/time is Thu Aug 24 2017, 00:06