Association of the C825T polymorphism of the G-protein beta3 subunit gene with hypertension, obesity, hyperlipidemia, insulin resistance, diabetes, diabetic complications, and diabetic therapies among Japanese.
A C825T polymorphism of the gene encoding the G-protein beta3 subunit (GNB3) is associated with increased intracellular signal transduction. We know that this C825T polymorphism may influence hypertension and obesity. In whites, the C825T polymorphism has been reported to induce hypertension, obesity, and diabetic nephropathy. Thus, we investigated how genetic variation in the GNB3 gene is associated with hypertension, obesity, insulin resistance, diabetes, diabetic complications, and diabetic therapies in 427 Japanese subjects with type 2 diabetes mellitus and in 368 Japanese subjects who underwent general health examinations. The frequency of the GNB3 gene polymorphism was 0.48 and 0.47 in subjects with diabetes and in those who had general health examinations, respectively. The amount of hyperlipidemia of the CT allele was significantly lower than the amount in the CC allele in the Japanese subjects with diabetes. Our results suggest that the C825T polymorphism influences lipid metabolism and is not associated with hypertension, obesity, insulin resistance, diabetes, diabetic complications, or diabetic therapies.
Hayakawa
Tetsuo
T
Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa 920-8461, Japan. hayakawa@tch.toyama.toyama.jp
Takamura
Toshinari
T
Abe
Toshio
T
Kaneko
Shuichi
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000483:Alleles; D001786:Blood Glucose / Q000378:metabolism; D015992:Body Mass Index; D002784:Cholesterol / Q000097:blood; D004247:DNA / Q000737:chemistry / Q000235:genetics; D003920:Diabetes Mellitus / Q000235:genetics*; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism; D020962:Heterotrimeric GTP-Binding Proteins / Q000235:genetics*; D006801:Humans; D006973:Hypertension / Q000235:genetics*; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000235:genetics*; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide
D001786:Blood Glucose; D002784:Cholesterol; D004247:DNA; D005230:Fatty Acids, Nonesterified; D006442:Glycated Hemoglobin; D020962:Heterotrimeric GTP-Binding Proteins; D007328:Insulin; C454420:G-protein beta3 subunit