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Background: Since insulin receptor substrate-1 (IRS-1) is the main substrate of the insulin receptor tyrosine kinase and has been detected to activate phosphatidylinositol (PI) 3-kinase and promote GLUT4 translocation, the IRS-1 gene is a possible candidate for development of type2 diabetes, insulin resistance, and obesity. Preilipin (PLIN) coats intracellular lipid droplets and modulates adipocyte lipolysis. Objectives: In this study, we investigated whether insulin receptor substrate-1 (IRS-1) and Perilipin (PLIN) genes polymorphism were associated with Type 2 diabetes (T2D), obesity, and lipid profiles in a sample of the Iranian population (Southeast of Iran). Methods: In this randomized case-control study (Feb, 2016

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Genome‐wide association studies indicated that hematopoietically‐expressed homeobox (HHEX) gene is a remarkable candidate for type 2 diabetes (T2D) mellitus susceptibility in spite of the fact that the results are ambiguous in some cases. So, this study aimed to evaluate the possible correlation between HHEX gene polymorphisms and T2D development in a sample of the Iranian population. The rs1111875G/A, rs7923837A/G, and rs5015480C/T HHEX gene polymorphisms were genotyped in 250 cases and 250 matched (age and sex) healthy controls using tetra‐amplification‐refractory mutation system‐polymerase chain reaction method. The finding revealed the all measured inheritance models of rs1111875G/A and of rs5015480C/T variants dramatically increase the risk of T2D while another polymorphism (rs7923837A/G) was not associated with risk/protective role in T2D. The results indicated that rs1111875G/A and rs5015480C/T may contribute to the enhancement of T2D risk in a sample of the southeast Iranian population.