GAS6 intron 8 c.834 + 7G > A gene polymorphism in diabetic nephropathy.

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    • Abstract:
      Background - Aim: In animal experiments, growth arrest-specific 6 (Gas6) protein plays a key role in the development of mesangial cell and glomerular hypertrophy in the early phase of diabetic nephropathy, and diabetic nephropathy is prevented by warfarin-induced inhibition of GAS6 protein. It was shown thatGAS6intron 8 c.834 + 7G > A polymorphism is protective against type 2 diabetes mellitus, and AA genotype is associated with higher blood levels of GAS6 protein. Our aim is to investigate whether this polymorphism is a risk factor for diabetic nephropathy in type 2 diabetes mellitus.Method: Eighty-seven patients with diabetic nephropathy were compared with 66 non-diabetic controls in terms ofGAS6intron 8 c.834 + 7G > A polymorphism. Patients with history of stroke, ischemic heart disease were excluded. Each patient was examined by the ophthalmologist to determine diabetic retinopathy.Results: Frequency of GG, GA and AA genotypes are similar in diabetic nephropathy and control groups according toGAS6intron 8 c.834 + 7G > A polymorphism (p = 0.837). Rate of diabetic retinopathy was 54.02%. In the subgroup analysis, GA genotype was significantly more frequent than GG genotype in patients with diabetic retinopathy when compared to without diabetic retinopathy (p = 0.010).Conclusion: In our study,GAS6intron 8 c.834 + 7G > A polymorphism was not associated with diabetic nephropathy in type 2 diabetes mellitus. However, heterozygous state of this polymorphism may be a risk factor for diabetic retinopathy in patients with diabetic nephropathy. [ABSTRACT FROM AUTHOR]
    • Abstract:
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