Objective: To find out the relation between Pro 12 Ala polymorphism of peroxisome proliferator-activated receptor gamma2 (PPAR-g2) gene with type 2 diabetes mellitus and the possible role of this gene polymorphism as a link between obesity and type 2 diabetes mellitus.
Subjects and Methods: Subjects of this study were classified into 3 groups: (15) Apparently healthy lean individuals (Group I), (15) obese non diabetic individuals (group II) and (24) patients with type 2 diabetes mellitus (group III). This group divided into: Diabetic non obese patients (12 patients) (Group IIIa) and: Diabetic obese patients (12 patients) (Group IIIb). The subjects were subjected to clinical examination, serum insulin level and estimation of PPAR-g2 gene polymorphism by Restriction fragment length polymorphism (RFLP) polymerase chain reaction (PCR).
Results: Frequency of Pro allele was significant increase in diabetic non obese patients& diabetic non obese patients when compared to control group (P= 0.048 and 0.003, respectively
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