alexa A novel aminosterol reverses diabetes and fatty liver disease in obese mice.


Organic Chemistry: Current Research

Author(s): Takahashi N, Qi Y, Patel HR, Ahima RS

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Abstract BACKGROUND/AIMS: Non-alcoholic fatty liver disease (NAFLD) is common in obesity. However, weight reduction alone does not prevent the development or progression of NAFLD. Since NAFLD is associated with insulin resistance and diabetes, we hypothesized that improvement of these factors would reverse obesity-related NAFLD. METHODS: We examined the effects of an aminosterol, 1436, on glucose, lipids and liver metabolism in Lep(ob/ob) mice, a model of obesity, severe insulin resistance, diabetes, hyperlipidemia and hepatic steatosis. RESULTS: 1436 decreased body weight, specifically fat content, by inhibiting food intake and increasing energy expenditure. In contrast to weight loss from food restriction, this aminosterol specifically lowered circulating lipids, reversed hepatic steatosis and normalized alanine aminotransferase level. 1436 decreased glucose, increased adiponectin and enhanced insulin action in liver. These changes culminated in inhibition of hepatic triglyceride synthesis and increased fatty acid oxidation. Gene expression studies confirmed a reduction in lipogenic enzymes in liver, and elevation of enzymes involved in lipid catabolism. CONCLUSIONS: These results demonstrate that 1436 is an effective treatment for insulin resistance and hepatic steatosis in Lep(ob/ob) mice, by decreasing hepatic lipid synthesis and stimulating lipolysis. In contrast, weight loss from food restriction has no substantial effect on insulin resistance, lipids and hepatic steatosis. This article was published in J Hepatol and referenced in Organic Chemistry: Current Research

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