期刊
LIPIDS
卷 45, 期 3, 页码 285-290出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11745-010-3388-1
关键词
Insulin resistance; NF-kappa B; Skeletal muscle; Saturated fatty acids; Unsaturated fatty acids; C2C12 cells; L6 cells
Long-chain saturated fatty acids such as palmitic acid induce insulin resistance and NF-kappa B activation in skeletal muscle cells. Here we investigated the effects of long-chain fatty acid (FA) saturation and configuration on NF-kappa B activity and insulin sensitivity in cultured skeletal muscle cells. Of all tested unsaturated FAs, only elaidic acid (3-fold), cis9, trans11-CLA (3-fold) and trans10, cis12-CLA (13-fold) increased NF-kappa B transactivation in myotubes. This was not accompanied by decreased insulin sensitivity (measured as insulin-induced glucose uptake and GLUT4 translocation). We therefore conclude that FA-induced NF-jB activation is not sufficient for the induction of insulin resistance in skeletal muscle cells.
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