RT Journal Article
SR Electronic
T1 Variation in the Interleukin-6 Receptor Gene Associates With Type 2 Diabetes in Danish Whites
JF Diabetes
JO Diabetes
FD American Diabetes Association
SP 3342
OP 3345
DO 10.2337/diabetes.53.12.3342
VO 53
IS 12
A1 Hamid, Yasmin H.
A1 Urhammer, Søren A.
A1 Jensen, Dorit P.
A1 Glümer, Charlotte
A1 Borch-Johnsen, Knut
A1 Jørgensen, Torben
A1 Hansen, Torben
A1 Pedersen, Oluf
YR 2004
UL http://diabetes.diabetesjournals.org/content/53/12/3342.abstract
AB Interleukin-6 (IL-6) is a pleiotropic cytokine involved in the pathophysiology of various human diseases such as type 2 diabetes and obesity. IL-6 signals via a heterodimeric receptor complex consisting of a soluble IL-6 α-subunit (IL-6 receptor [IL6R]) and a signal transducing subunit (gp130). The IL6R gene maps to an important candidate locus for type 2 diabetes on chromosome 1q21. An Asp358Ala polymorphism of the IL6R has been reported to associate with obesity in Pima Indians. We investigated the Asp358Ala polymorphism in relation to type 2 diabetes, obesity, and other pre-diabetic quantitative traits among Danish whites. By applying a recessive genetic model in a case-control study of 1,349 type 2 diabetic patients and 4,596 glucose-tolerant control subjects, we found a significant difference in genotype distribution (P = 0.008) and in allele frequency (Ala-allele 38.3% [95% CI 36.5–40.1] in diabetic subjects vs. 41.2% [40.2–42.2] in control subjects; P = 0.007). The odds ratio for the Asp/Asp carriers versus Ala/Ala carriers was 1.38 (1.09–1.71). Among 4,251 middle-aged glucose-tolerant subjects, the Asp358Ala polymorphism was not associated with estimates of obesity, post–oral glucose tolerance test serum insulin release, or the homeostasis model assessment of insulin resistance index. In conclusion, the Asp358Ala polymorphism of the IL6R associates with type 2 diabetes in Danish whites.