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Insulin resistance influences the association of adiponectin levels with diabetes incidence in two population-based cohorts: The Cooperative Health Research in the Region of Augsburg (KORA) S4/F4 study and the Framingham Offspring Study.
Diabetologia 54, 1019-1024 (2011)
Lower adiponectin levels are associated with higher risk of incident type 2 diabetes. Most analyses have been adjusted for confounding factors, but few have taken into account insulin resistance per se. We tested the hypothesis that the association of adiponectin levels with incident type 2 diabetes differs between insulin-resistant and insulin-sensitive individuals. We studied two prospective cohorts: the Framingham Offspring Study (n = 2,023) and the Cooperative Health Research in the Region of Augsburg (KORA) S4/F4 study (n = 887) cohorts. Insulin resistance was estimated by HOMA-insulin resistance (HOMA-IR). We used logistic regression analysis to test the association between adiponectin and incident type 2 diabetes overall and in insulin-resistant vs insulin-sensitive individuals (defined by ≥ vs <75th percentile of HOMA-IR).At baseline, Framingham's participants were 60 ± 9 years old and 56% were women; KORA's participants were 63 ± 5 years old and 49% were women. Type 2 diabetes incidence was 5.4% over 6.5 years (n = 109) in Framingham and 10.5% over 8 years (n = 93) in KORA. Lower adiponectin levels were associated with type 2 diabetes incidence in both cohorts. In insulin-resistant individuals, lower adiponectin levels were associated with higher risk of type 2 diabetes incidence (OR 1.60 [95% CI 1.10-2.31] per SD decrease in Framingham, p = 0.01; and OR 2.34 [95% CI 1.16-4.73] in KORA, p = 0.02); while this was not observed in insulin-sensitive individuals (OR 1.10 [95% CI 0.73-1.67] in Framingham, p = 0.64; and OR 1.34 [95%CI: 0.88-2.03] in KORA, p = 0.18).We conclude that lower adiponectin levels are associated with higher risk of type 2 diabetes in insulin-resistant but not in insulin-sensitive individuals. This suggests that some level of insulin resistance is needed to see deleterious effects of low adiponectin.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Adiponectin; Insulin resistance; Diabetes incidence; Prospective cohorts
ISSN (print) / ISBN
0012-186X
e-ISSN
1432-0428
Zeitschrift
Diabetologia
Quellenangaben
Band: 54,
Heft: 5,
Seiten: 1019-1024
Verlag
Springer
Verlagsort
Berlin ; Heidelberg [u.a.]
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Epidemiology II (EPI2)