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Omentin-1 and risk of myocardial infarction and stroke: Results from the EPIC-Potsdam cohort study

Background and aims The recently identified adipokine omentin-1 is inversely associated with body fatness, metabolic syndrome and cardiovascular disease (CVD) in cross-sectional analyses. However, prospective data on the association between plasma omentin-1 levels and future risk of CVD are lacking. The aim of the study was to investigate the relationship between omentin-1 and incident myocardial infarction (MI) and stroke. Methods We conducted a case-cohort study nested within the European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam cohort comprising a subsample of 2084 participants, including 50 CVD cases and 350 external incident CVD cases (mean follow-up of 8.2 ± 1.6 years). Prentice modified Cox regression adjusted for established CVD risk factors was used to estimate associations between omentin-1 and risk of MI and stroke, interactions were tested with cross-product terms. Results After multivariable adjustment, omentin-1 was not significantly associated with risk of MI (HR per doubling omentin-1:1.17; 95%-CI:0.79–1.72; p = 0.43), but with higher risk of stroke (HR per doubling omentin-1:2.22; 95%-CI:1.52–3.22; p < 0.0001). In subgroup analyses, associations between omentin-1 and stroke risk were generally stronger in lower versus higher CVD risk groups. For example, risk of stroke was stronger in participants without metabolic syndrome (HR per doubling omentin-1:2.58; 95%-CI:1.64–4.07; p < 0.0001) compared to those with metabolic syndrome (HR per doubling omentin-1:1.21; 95%-CI:0.59–2.50; p = 0.60) (p for interaction = 0.05). Similar interactions were observed when participants were classified in low or high risk groups according to waist circumference, triglyceride, hsCRP or adiponectin levels. Conclusions Omentin-1 concentrations may be related to increased stroke risk. This association is stronger in metabolically healthy individuals.


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