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A polymorphism in the angiotensin II type 1 receptor gene has different effects on the risk of diabetic nephropathy in men and women.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
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2011 (English)In: Molecular Genetics and Metabolism, ISSN 1096-7192, E-ISSN 1096-7206, Vol. 103, no 1, 66-70 p.Article in journal (Refereed) Published
Abstract [en]

Background

The etiology of diabetic nephropathy depends partly on genetic factors. Elevated systemic and intraglomerular blood pressure and glomerular filtration rate, partly regulated by the renin–angiotensin system, increase the risk of diabetic nephropathy.

Methods

The present case–control study investigated the association of the rs5186 polymorphism, in the angiotensin II type 1 receptor gene (AGTR1), with diabetic nephropathy. The study included 3561 patients with type 1 diabetes from Denmark, Finland, France and Sweden. Microalbuminuria was defined as albumin excretion rate (AER) ≥ 20 to < 200 μg/min or albumin concentration ≥ 30 to < 300 mg/l (n = 707), macroalbuminuria was defined as AER ≥ 200 μg/min or ≥ 300 mg/l (n = 1546), and patients with renal replacement therapy were also included in this group. The controls had > 15 years diabetes duration, AER < 20 μg/min or < 30 mg/l, and no antihypertensive treatment (n = 1308).

Results

AA genotype of the rs5186 polymorphism significantly increased the risk of diabetic nephropathy in male patients, OR = 1.27 (95% CI = 1.02–1.58), P = 0.03, adjusted for age at diabetes onset, HbA1c, diabetes duration, smoking and country of origin. Among the women, there were no significant associations between rs5186 and diabetic nephropathy, OR = 0.89 (0.71–1.11), P = 0.30.

Conclusion

We conclude that the AGTR1 gene may be associated with increased risk of diabetic nephropathy in men with type 1 diabetes.

Place, publisher, year, edition, pages
Elsevier , 2011. Vol. 103, no 1, 66-70 p.
Keyword [en]
A1166C, Angiotensin II type 1 receptor, Diabetic nephropathy, Renin–angiotensin system, rs5186, Type 1 diabetes
Identifiers
URN: urn:nbn:se:umu:diva-43595DOI: 10.1016/j.ymgme.2011.01.004PubMedID: 21316998OAI: oai:DiVA.org:umu-43595DiVA: diva2:414751
Available from: 2011-05-04 Created: 2011-05-04 Last updated: 2017-12-11Bibliographically approved

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