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Leptin: a predictor of abnormal glucose tolerance and prognosis in patients with myocardial infarction and without previously known Type 2 diabetes.
Umeå University, Faculty of Medicine, Public Health and Clinical Medicine, Medicine.
2008 (English)In: Diabetic medicine : a journal of the British Diabetic Association, ISSN 1464-5491, Vol. 25, no 8, 949-55 p.Article in journal (Refereed) Published
Abstract [en]

AIMS: High levels of leptin and low adiponectin are associated with Type 2 diabetes mellitus (T2DM) and cardiovascular (CV) disease. We studied the prognostic implications of leptin and adiponectin in patients with acute myocardial infarction (AMI) without previously known Type 2 DM. METHODS: One hundred and eighty-one patients were included. Based on an oral glucose tolerance test at hospital discharge (day 4-5), 168 (67% men) had normal or abnormal glucose tolerance (AGT), defined as impaired glucose tolerance or T2DM. Sex- and age-matched healthy persons served as control subjects (n = 185). The associations between fasting serum leptin and adiponectin (day 2) and newly discovered AGT and CV events (CV mortality, non-fatal stroke, reinfarction or severe heart failure) during a median follow-up of 34 months were investigated. RESULTS: Compared with control subjects, patients of both genders had significantly higher levels of leptin 2 days after an AMI. These levels were higher than those obtained at hospital discharge and 3 months later. Circulating levels of (ln) leptin 2 days after the AMI predicted AGT at discharge (odds ratio 2.03, P = 0.042). Ln leptin at day 2 was the only biochemical variable that significantly predicted CV events both on univariate [hazard ratio (HR) 1.60, P = 0.018] and on multivariate analysis (HR 1.75, P = 0.045). Adiponectin levels did not differ between patients and control subjects and did not relate to AGT or CV events. CONCLUSIONS: Elevated circulating levels of leptin on the first morning after an AMI are associated with the presence of AGT at discharge and with a poorer long-term prognosis.

Place, publisher, year, edition, pages
2008. Vol. 25, no 8, 949-55 p.
URN: urn:nbn:se:umu:diva-22848DOI: 10.1111/j.1464-5491.2008.02509.xPubMedID: 18959608OAI: diva2:218264
Available from: 2009-05-19 Created: 2009-05-19 Last updated: 2009-06-01

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