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- Title
The functional -374 T/A RAGE gene polymorphism is associated with proteinuria and cardiovascular disease in type 1 diabetic patients.
- Authors
Pettersson-Fernholm, Kim; Forsblom, Carol; Hudson, Barry I.; Perola, Markus; Grant, Peter J.; Groop, Per-Henrik; Finn-Diane Study Group
- Abstract
The hyperglycemic milieu in diabetes results in the formation of advanced glycation end products (AGEs) that predominantly act through specific receptors, particularly the receptor for AGEs (RAGE). Two functional polymorphisms in the promoter of the RAGE gene (-429 T/C and -374 T/A) and one in the AGE binding domain in exon 3 (G82S) were studied in 996 Finnish type 1 diabetic patients. In patients with poor metabolic control (HbA(1c) >9.5%), the AA genotype of the -374 T/A polymorphism was more common in those with a normal albumin excretion rate than in those with proteinuria (30 vs. 10%, P = 0.01). We observed less coronary heart disease (6 vs. 14%, P < 0.05), acute myocardial infarction (2 vs. 14%, P = 0.01), and peripheral vascular disease (2 vs. 14%, P < 0.05) in patients with the AA genotype of the -374 T/A polymorphism than in those with the TT + TA genotype. Thus, the association between the RAGE -374 T/A homozygous AA genotype and cardiovascular disease as well as albumin excretion in type 1 diabetic patients with poor metabolic control suggests a gene-environment interaction in the development of diabetic nephropathy and cardiovascular complications.
- Subjects
GENETICS of diabetes; CHROMOSOME polymorphism; PROTEINURIA; CARDIOVASCULAR diseases risk factors; DISEASE risk factors
- Publication
Diabetes, 2003, Vol 52, Issue 3, p891
- ISSN
0012-1797
- Publication type
journal article
- DOI
10.2337/diabetes.52.3.891