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Impact of the adipokine adiponectin and the hepatokine fetuin-a on the development of type 2 diabetes: Prospective cohort- and cross-sectional phenotyping studies.
PLoS ONE 9:e92238 (2014)
BACKGROUND: Among adipokines and hepatokines, adiponectin and fetuin-A were consistently found to predict the incidence of type 2 diabetes, both by regulating insulin sensitivity. OBJECTIVE: To determine to what extent circulating adiponectin and fetuin-A are independently associated with incident type 2 diabetes in humans, and the major mechanisms involved. METHODS: Relationships with incident diabetes were tested in two cohort studies: within the European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam study (628 cases) and the Nurses' Health Study (NHS; 470 cases). Relationships with body fat compartments, insulin sensitivity and insulin secretion were studied in the Tübingen Lifestyle Intervention Program (TULIP; N = 358). RESULTS: Circulating adiponectin and fetuin-A, independently of several confounders and of each other, associated with risk of diabetes in EPIC-Potsdam (RR for 1 SD: adiponectin: 0.45 [95% CI 0.37-0.54], fetuin-A: 1.18 [1.05-1.32]) and the NHS (0.51 [0.42-0.62], 1.35 [1.16-1.58]). Obesity measures considerably attenuated the association of adiponectin, but not of fetuin-A. Subjects with low adiponectin and concomitantly high fetuin-A had the highest risk. Whereas both proteins were independently (both p<1.8×10-7) associated with insulin sensitivity, circulating fetuin-A (r = -0.37, p = 0.0004), but not adiponectin, associated with insulin secretion in subjects with impaired glucose tolerance. CONCLUSIONS: We provide novel information that adiponectin and fetuin-A independently of each other associate with the diabetes risk. Furthermore, we suggest that they are involved in the development of type 2 diabetes via different mechanisms, possibly by mediating effects of their source tissues, expanded adipose tissue and nonalcoholic fatty liver.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
1932-6203
Zeitschrift
PLoS ONE
Quellenangaben
Band: 9,
Heft: 3,
Artikelnummer: e92238
Verlag
Public Library of Science (PLoS)
Verlagsort
Lawrence, Kan.
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed