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RANTES/CCL5 gene polymorphisms, serum concentrations, and incident type 2 diabetes: Results from the MONICA/KORA Augsburg case-cohort study, 1984-2002.
Eur. J. Endocrinol. 158, R1-R5 (2008)
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Regulated on activation, normal T-cell expressed and secreted (RANTES)/chemokine(C-C motif) ligand (CCL5) is expressed by adipocytes, and serum levels of RANTES are increased in obesity and type 2 diabetes. The aim of this study was to test the hypothesis that RANTES is involved in the pathogenesis of type 2 diabetes by analyzing the triangular association between CCL5 gene polymorphisms, systemic RANTES concentrations, and incident type 2 diabetes in a large prospective study. SUBJECTS AND METHODS: The study is based on 502 individuals (293 men and 209 women) and 1632 individuals (859 men and 773 women) with and without incident type 2 diabetes from the population-based MONItoring of Trends and Determinants in Cardiovascular Disease (MONICA)/Cooperative Health Research in the Region of Augsburg (KORA) case-cohort study respectively (mean follow-up time+/-s.d. 10.1+/-4.9 years). CCL5 genotypes and RANTES serum concentrations were determined and associations between genotypes, haplotypes, serum levels, and incident type 2 diabetes were assessed. Results Minor alleles of four single nucleotide polymorphisms were associated with lower RANTES levels (P(additive) between 1.2 x 10(-9) and 3.1 x 10(-8)), but neither genotypes, haplotypes, nor serum levels were associated with incident type 2 diabetes. CONCLUSIONS: Our data suggest that RANTES/CCL5 gene variants and serum levels are not causally related with type 2 diabetes and that elevated RANTES levels in patients with type 2 diabetes may be a consequence of hyperglycemia. However, our findings cannot preclude a local role in adipose tissue where RANTES expression may contribute to leukocyte infiltration and a proinflammatory state.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
ISSN (print) / ISBN 0804-4643
Zeitschrift European Journal of Endocrinology
Quellenangaben Band: 158, Heft: 5, Seiten: R1-R5
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Epidemiology I (EPI1)