Epigenetics of diabetes Type 2 Since Type 2 diabetes is characterized by chronic hyperglycaemia as a result of impaired pancreatic beta cell function and insulin resistance in peripheral tissues, it was thought that the gene might be downregulated in type 2 diabetes patients through DNA methylation. The defects in pancreatic beta cell function and insulin resistance in peripheral tissues were thought to be the result of impaired ATP production from reduced oxidative phosphorylation. It was found that the mRNA expression of PPARGC1A was markedly reduced in pancreatic islets from type 2 diabetic donors compared with that of non-diabetic donors. Using bisulfite testing, it was also
Saturated fat and cardiovascular disease increasing consumption of monounsaturated fats and polyunsaturated fats could lower risk of cardiovascular disease by about 30%. A 2015 systematic review also found no association between saturated fat consumption and risk of heart disease, stroke, diabetes, or death. A 2015 systematic review of randomized control trials by the Cochrane Library found that reducing saturated fat intake resulted in a 17% reduction in cardiovascular events, and that replacing saturated fats with "cis" unsaturated fats in particular is beneficial. It concluded: "Lifestyle advice to all those at risk of cardiovascular disease and to lower risk population groups should continue to include permanent