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- Title
Variants of the interleukin-10 promoter gene are associated with obesity and insulin resistance but not type 2 diabetes in caucasian italian subjects.
- Authors
Scarpelli, Daniela; Cardellini, Marina; Andreozzi, Francesco; Laratta, Emanuela; Hribal, Marta Letizia; Marini, Maria Adelaide; Tassi, Vittorio; Lauro, Renato; Perticone, Francesco; Sesti, Giorgio
- Abstract
Interleukin (IL)-10 is a major anti-inflammatory cytokine that has been associated with obesity and type 2 diabetes. The three polymorphisms -1082G/A, -819C/T, and -592C/A in the IL10 promoter were reported to influence IL10 transcription. We investigated whether these polymorphisms were associated with type 2 diabetes and related traits in a cohort of Italian Caucasians comprising 551 type 2 diabetic and 1,131 control subjects. The -819C/T and -592C/A polymorphisms were in perfect linkage disequilibrium (r(2) = 1.0). The -1082G/A polymorphism was not associated with type 2 diabetes or related traits. Although the -592C/A polymorphism was not associated with type 2 diabetes, nondiabetic homozygous carriers of the A allele showed increased BMI and insulin resistance and lower plasma IL-10 levels compared with the other genotypes. In the nondiabetic group, the ATA haplotype was associated with an increased risk for obesity (odds ratio 1.28 [95% CI 1.02-1.60]; P = 0.02). The ATA/ATA composite genotype was associated with an increased risk for obesity (1.96 [1.16-3.31]; P = 0.01) and insulin resistance (1.99 [1.12-3.53]; P = 0.01). This study suggests that polymorphisms and haplotypes of the IL10 promoter may be associated with obesity and insulin resistance in a large sample of Italian Caucasians.
- Publication
Diabetes, 2006, Vol 55, Issue 5, p1529
- ISSN
0012-1797
- Publication type
Journal Article
- DOI
10.2337/db06-0047