TY - JOUR
T1 - Relation between Development of Nephropathy and the p22phox C242T and Receptor for Advanced Glycation End Product G1704T Gene Polymorphisms in Type 2 Diabetic Patients
AU - Matsunaga-Irie, Seiko
AU - Maruyama, Taro
AU - Yamamoto, Yukihiro
AU - Motohashi, Yoshiko
AU - Hirose, Hiroshi
AU - Shimada, Akira
AU - Murata, Mitsuru
AU - Saruta, Takao
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2004/2
Y1 - 2004/2
N2 - OBJECTIVE - The development of diabetic nephropathy is considered to be associated with oxidative stress. NADPH oxidase and the receptor for advanced glycation end products (RAGE) have attracted attention as mechanisms of generating oxidative stress. We studied the relation between the genotypes of the NADPH p22phox C242T and RAGE G1704T polymorphisms and the development of diabetic nephropathy in type 2 diabetic patients. RESEARCH DESIGN AND METHODS - Using a retrospective review of clinical data, we allocated 181 Japanese type 2 diabetic patients to one of two groups: patients without diabetic nephropathy (group N; n = 108) and patients developing diabetic nephropathy (group D; n = 73) for 10 years or more. The p22phox C242T and RAGE G1704T polymorphisms were examined by Taqman PCR methods. RESULTS - The frequency of the p22phox CC genotype was significantly higher in group D than in group N (90 vs. 79%; P = 0.0427). The frequency of the RAGE GT + TT genotype was significantly higher in group D than in group N (26 vs. 13%; P = 0.0313). The frequency of the combination of p22phox CC and RAGE GT + TT genotypes was significantly higher in group D than in group N (22 vs. 8%; P = 0.0057). In multiple logistic regression analysis, systolic blood pressure, HbA1c, triglycerides, and the combination of polymorphisms were shown to be independent variables. CONCLUSIONS - These results suggest that assessment of the combination of NADPH p22phox C242T and RAGE G1704T polymorphisms may be useful in identifying the risk for developing diabetic nephropathy in type 2 diabetic patients.
AB - OBJECTIVE - The development of diabetic nephropathy is considered to be associated with oxidative stress. NADPH oxidase and the receptor for advanced glycation end products (RAGE) have attracted attention as mechanisms of generating oxidative stress. We studied the relation between the genotypes of the NADPH p22phox C242T and RAGE G1704T polymorphisms and the development of diabetic nephropathy in type 2 diabetic patients. RESEARCH DESIGN AND METHODS - Using a retrospective review of clinical data, we allocated 181 Japanese type 2 diabetic patients to one of two groups: patients without diabetic nephropathy (group N; n = 108) and patients developing diabetic nephropathy (group D; n = 73) for 10 years or more. The p22phox C242T and RAGE G1704T polymorphisms were examined by Taqman PCR methods. RESULTS - The frequency of the p22phox CC genotype was significantly higher in group D than in group N (90 vs. 79%; P = 0.0427). The frequency of the RAGE GT + TT genotype was significantly higher in group D than in group N (26 vs. 13%; P = 0.0313). The frequency of the combination of p22phox CC and RAGE GT + TT genotypes was significantly higher in group D than in group N (22 vs. 8%; P = 0.0057). In multiple logistic regression analysis, systolic blood pressure, HbA1c, triglycerides, and the combination of polymorphisms were shown to be independent variables. CONCLUSIONS - These results suggest that assessment of the combination of NADPH p22phox C242T and RAGE G1704T polymorphisms may be useful in identifying the risk for developing diabetic nephropathy in type 2 diabetic patients.
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U2 - 10.2337/diacare.27.2.303
DO - 10.2337/diacare.27.2.303
M3 - Review article
C2 - 14747204
AN - SCOPUS:0842333112
VL - 27
SP - 303
EP - 307
JO - Diabetes Care
JF - Diabetes Care
SN - 1935-5548
IS - 2
ER -