Genetic susceptibility to nephropathy in Pima Indians with type 2 diabetes mellitus

被引:0
|
作者
Imperatore, G [1 ]
Nelson, RG [1 ]
机构
[1] NIDDKD, Phoenix Epidemiol & Clin Res Branch, NIH, Phoenix, AZ 85014 USA
关键词
diabetic nephropathy; genetics; linkage analysis; Pima Indians;
D O I
10.1111/j.1440-1797.1998.tb00470.x
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
In Pima Indians, the incidence of end-stage renal disease, nearly all of which is attributable to type 2 diabetes mellitus, is more than 20 times that in the general United States population. Studies in the Pimas indicate that factors other than diabetes per se enhance susceptibility tu the development of diabetic nephropathy. Aggregation of renal disease in families, a relationship between parental blood pressure and diabetic nephropathy in the offspring, and an association between higher prediabetic blood pressure and the occurrence of renal disease after the onset of diabetes all point to individual differences in susceptibility. Although clustering of environmental exposures may be responsible for these findings, they may also represent genetic transmission of susceptibility to renal disease. Recently, linkage analyses were performed in 98 diabetic sib-pairs, both affected by diabetic nephropathy. Two adjacent markers on chromosome 7 met the criteria for suggestive linkage with two-point analysis. Positioned between these markers is the gene coding for aldose reductase. Polymorphisms of this locus are associated with diabetic microvascular complications in other populations. Linkage studies provide evidence that familial aggregation of diabetic renal disease reflects, in part, genetic transmission of susceptibility that appears to be independent uf thr transmission of diabetes.
引用
收藏
页码:S34 / S39
页数:6
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