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Faulty Fat Sensor Implicated in Obesity and Liver Disease

Discussion in 'Adrenal Rx and Leaky Gut Rx' started by chocolate, May 9, 2012.

  1. chocolate

    chocolate Silver

    http://www.sciencedaily.com/releases/2012/02/120219143222.htm

    ScienceDaily (Feb. 19, 2012) — Defects in a protein that functions as a dietary fat sensor may be a cause of obesity and liver disease, according to a study published in the journal Nature, led by researchers at Imperial College London. The findings highlight a promising target for new drugs to treat obesity and metabolic disorders.

    The protein GPR120 is found on the surface of cells in the gut, liver and fat tissue and allows cells to detect and respond to unsaturated fatty acids from the diet, especially the omega-3 fatty acids which are believed to have a beneficial impact on health. Scientists found that mice deficient in GPR120 were more prone to developing obesity and liver disease when fed a high-fat diet. They also found that people with a certain mutation in the gene encoding GPR120, which stops the protein from responding to omega-3 fatty acids, were significantly more likely to be obese.



    In the gut, when unsaturated fatty acids from food bind to GPR120, this stimulates the release of hormones that suppress appetite and stimulate the pancreas to secrete insulin. When fat cells sense high levels of fat in the blood through GPR120, it stimulates them to divide to produce more fat cells to store all the fat, reducing the risk of fatty liver and furring of the arteries. This mechanism could be an important pathway for bringing about some of the healthy effects of omega-3s.
     

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