Associations of mid-regional pro-adrenomedullin levels to cardiovascular and metabolic abnormalities, and mortality in an elderly population from the community
2013 (English)In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 168, no 4, 3537-3542 p.Article in journal (Refereed) Published
The mid-regional part of the prohormone of adrenomedullin (MR-proADM) is emerging as a novel risk indicator in patients with cardiac disease. We investigated MR-proADM levels and their changes over 5years in elderly community-dwellers, together with the underlying cardiovascular and metabolic conditions, and the prognostic implications of these measurements.
METHODS AND RESULTS:
MR-proADM was analyzed using a sandwich immunoassay (Thermo Fisher Scientific) in participants from the PIVUS study. Measurements were performed at 70 (n=1002) and 75years of age (n=795) together with various measurements of other markers of cardiovascular function. In cross-sectional analyses, MR-proADM was independently related to current smoking, renal dysfunction, obesity, lower left-ventricular ejection fraction, and higher levels of N-terminal pro-B-type natriuretic peptide and C-reactive protein. There were no independent associations to other cardiovascular risk factors or vascular pathologies. MR-proADM levels predicted all-cause mortality during 8.0years of follow-up independent of cardiovascular risk indicators (adjusted HR 5.1 [95% CI 2.8-9.5]; p<0.001) using results obtained at 70 and 75years as updated covariates. Baseline MR-proADM levels improved prognostic discrimination (IDI=0.018 [p=0.001]). Also the change in MR-proADM levels over time independently predicted all-cause mortality occurring after 75years (adjusted HR 13.4 [95% CI 3.5-50.5]; p<0.001).
MR-proADM levels in the elderly integrate information on several relevant aspects in cardiovascular disease, namely cardiovascular risk factors including obesity, low-grade inflammation, renal dysfunction and left-ventricular abnormalities. Furthermore, MR-proADM and its changes over time predicted mortality, and might provide utility as an indicator of the overall cardiovascular risk burden.
Place, publisher, year, edition, pages
2013. Vol. 168, no 4, 3537-3542 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-205084DOI: 10.1016/j.ijcard.2013.05.005ISI: 000326219600065PubMedID: 23722054OAI: oai:DiVA.org:uu-205084DiVA: diva2:640532