VAT and SAT were used to measure the gene expression of the VLDL receptor (VLDLR), lipoprotein lipase (LPL), acylation stimulating protein (ASP), LDL receptor-related protein 1 (LRP1), and fatty acid binding protein 4 (FABP4) in 28 morbidly obese patients with Type 2 Diabetes Mellitus (T2DM) or high IR, 10 morbidly obese patients with low IR, 10 obese patients with low IR, and 12 lean, healthy controls. This evidence concerns the gene C3 and diabetes mellitus.