[Relationship between plasminogen activator inhibitor-1 gene 4G/5G polymorphism and type 2 diabetic nephropathy in Chinese Han patients in Guangdong Province].
OBJECTIVE
To understand the association between plasminogen activator inhibitor-1 (PAI-1) gene 4G/5G polymorphism and type 2 diabetic nephropathy (DN) in Chinese Han patients in Guangdong Province.


METHODS
PAI-1 gene 4G/5G polymorphism was analyzed in 26 normal individuals, 77 patients with type 2 diabetic nephropathy and 70 type 2 diabetic patients without nephropathy (DNN) by polymerase chain reaction-restriction fragment length polymorphism.


RESULTS
The 4G/4G genotype frequencies of PAI-1 gene were higher in DN than in DNN patients (0.390 vs 0.171, chi(2)=13.008, P<0.01), with the odds ratio (OR) of 1.447 (95% confidence interval: 0.533-3.934, P<0.05) in comparison with 5G/5G genotypes between the 2 patient groups. The 4G allele frequencies of PAI-1 gene were similar in DN and DNN groups (0.57 vs 0.51, chi(2)=1.22, P>0.05).


CONCLUSIONS
The PAI-1 4G/4G genotype is associated with increased risk for type 2 DN the Chinese Han population in Guangdong Province, and type 2 diabetic patients with 4G/4G PAI-1 genotype are more likely to develop DN than those with 5G/5G PAI-1 genotype.
Liu
Shi-qun
SQ
Department of Endocrinology, Nanfang Hospital, First Military Medical University, Guangzhou 510515, China.
Xue
Yao-ming
YM
Yang
Guang-cai
GC
He
Fei-ying
FY
Zhao
Xiao-shan
XS
D000368:Aged; D002681:China / Q000208:ethnology; D003924:Diabetes Mellitus, Type 2 / Q000235:genetics*; D003928:Diabetic Nephropathies / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D017395:Plasminogen Activator Inhibitor 1 / Q000235:genetics*; D011110:Polymorphism, Genetic
D017395:Plasminogen Activator Inhibitor 1