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Impaired glucose tolerance is associated with increased serum concentrations of interleukin 6 and co-regulated acute-phase proteins but not TNF-alpha or its receptors.
Diabetologia 45, 805-812 (2002)
Aims/hypothesis. A population-based sample was studied to define immune abnormalities in individuals at risk of Type II (non-insulin-dependent) diabetes mellitus because of impaired glucose tolerance.
Methods. A total of 1653 individuals aged 55 to 74 years participated in a population based survey in Southern Germany (KORA Survey 2000). Those without a history of diabetes were subjected to an OGTT. Randomly selected subjects with IGT (n=80) were compared with non-diabetic control subjects (n=77) and patients with Type II diabetes (n=152) of the same population-based sample after matching for age and sex. Immune parameters were analysed in serum with rigidly evaluated ELISA.
Results. Serum pro-inflammatory cytokine interleukin 6 (IL-6) concentrations were higher in subjects with IGT and Type II diabetes than in the control subjects (median 1.8 and 2.5 vs 0.8 pg/ml, p<0.0001). Soluble IL-6 receptors potentiate IL-6 bioactivity and their concentrations were mildly increased in Type II diabetes (p<0.05). These immune changes seem relevant because IL-6 dependent acute-phase proteins C-reactive protein, serum amyloid A protein and fibrinogen were also increased in IGT and Type II diabetes. Circulating concentrations of TNF-α and its two receptors sTNF-R60 and sTNF-R80 were not increased in IGT subjects compared with the control subjects.
Conclusion/interpretation. Our study shows systemic up-regulation of selected inflammatory mediators in patients with Type II diabetes and IGT. The pattern observed is non-random and fits with an IL-6 associated rather than TNF-α associated response.
Type II diabetes impaired glucose tolerance systemic inflammation interleukin 6 tumour necrosis factor α C-reactive protein serum amyloid A protein innate immunity cytokine acute-phase protein
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Type II diabetes; impaired glucose tolerance; systemic inflammation; interleukin 6; tumour necrosis factor alpha; C-reactive protein; serum amyloid A protein; innate immunity; cytokine; acute-phase protein
ISSN (print) / ISBN
0012-186X
e-ISSN
1432-0428
Zeitschrift
Diabetologia
Quellenangaben
Band: 45,
Heft: 6,
Seiten: 805-812
Verlag
Springer
Verlagsort
Berlin ; Heidelberg [u.a.]
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Epidemiology (EPI)