Frequency of the G/G genotype of resistin single nucleotide polmorphism at -420 appears to be increased in younger-onset type 2 diabetes
Frequency of the G/G genotype of resistin single nucleotide polmorphism at -420 appears to be increased in younger-onset type 2 diabetes
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DOI:
10.2337/db06-1157
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发表时间:
2007-11-01
期刊:
影响因子:
7.7
通讯作者:
Makino, Hideichi
中科院分区:
文献类型:
--
作者:
Ochi, Masaak;Osawa, Haruhiko;Makino, Hideichi
OBJECTIVE-Resistin is an adipocyte-secreted cytokine associated with insulin resistance in mice. We previously reported that the G/G genotype of a resistin single nucleotide polymorphism (SNP) at -420 increases type 2 diabetes susceptibility by enhancing its promoter activity. The aim of the present study was to determine the relevance of SNP - 120 in a large number of subjects.RESEARCH DESIGN AND METHODS- We examined 2,610 type 2 diabetic case and 2,502 control subjects. The relation between SNP -420 and the age of type 2 diabetes onset was further analyzed by adding 237 type 2 diabetic subjects with age of onset: 40 years.RESULTS-When analyzed without considering subject age, the SNP -420 genotype was not associated with type 2 diabetes. Since we reported that the onset of type 2 diabetes was earlier in G/G genotype, we analyzed the data using a trend test for age intervals of 10 years. The frequency of G/G genotype differed among age grades in type 2 diabetes (P = 0.037) and appeared to be higher in younger grades. In type 2 diabetes, G/G genotype was more frequent in subjects aged = 40 years (G/G vs. C/C, P = 0.003). In a total of 2,430 type 2 diabetic subjects with age of onset