Abstract
Development of type 2 diabetes mellitus and insulin resistance is associated with a quality of dietary fatty acids such as saturated and unsaturated fatty acids. Dietary fatty acids also include transform of unsaturated fatty acids and intake of transform of oleate (elaidate) is associated with cardiovascular disease. However, little is known about the roles of elaidate in insulin responsiveness. We show here that elaidate impairs insulin-dependent glucose uptake in adipocytes. Differentiation with 10 μM elaidate, which is close to physiological plasma concentration, reduces insulin-dependent glucose uptake. Furthermore, insulin-dependent GLUT4 translocation is disturbed in adipocytes differentiated with elaidate. In addition, analysis of lipolysis and gene expression shows that deteriorative effects of elaidate on insulin responsiveness are limited but not general. Thus, our findings reveal that differentiation with elaidate tends to affect insulin-dependent glucose uptake through alternation of GLUT4 translocation from cytosol to the plasma membrane.
Published Version
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