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Official Journal of the , the International Union of Phlebology and the
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,899
Online ISSN 1827-1839
Panayiotou A. G. 1, 7, Kamilari E. 2, Griffin M. 3, Tyllis T. 4, Georgiou N. 4, Bond D. 3, Hoppensteadt D. 5, Fareed J. 5, Nicolaides A. 3, 4, 6, 7
1 Cyprus International Institute for Environmental and Public Health in association with the Harvard School of Public Health, Cyprus University of Technology, Limassol, Cyprus;
2 Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus;
3 Vascular Noninvasive Screening and Diagnostic Centre, London, UK;
4 Vascular Screening and Diagnostic Center, Nicosia, Cyprus;
5 Departments of Pathology and Pharmacology, Loyola University, Chicago, IL, USA;
6 Department of Vascular Surgery, Imperial College, London, UK;
7 Cyprus Cardiovascular Disease Educational and Research Trust, Nicosia, Cyprus
Aim: The aim of the study was to test the association between circulating levels of matrix prometalloproteinase1 (pro-MMP1) and its tissue inhibitors TIMP1 and TIMP2 with prevalent cardiovascular events.
Methods: Prevalent cardiovascular events were documented in 500 participants of the Cyprus study (46% men) over the age of 40. Serum levels of pro-MMP1, TIMP1 and TIMP2 were measured with ELISA and the association between quartiles of serum levels and presence of cardiovascular disease (CVD) was tested using multivariable binary regression models.
Results: Lower serum levels of pro-MMP1 and TIMP1 were strongly associated with presence of CVD at baseline even after adjustment for conventional risk factors (Pfor trend=0.006 and P=0.001, respectively) and inflammatory factors (Pfor trend=0.005 and P=0.002, respectively) with people in the highest quartile of pro-MMP1 having a reduced odds for cardiovascular disease by about 70% compared to the lowest quartile (ORadjusted=0.26; 95% CI=0.19 to 0.75; P=0.01), whereas people with TIMP1 levels >1000 ng/mL had a 75% reduced odds for CVD compared to the rest (ORadjusted=0.25; 95% CI=0.11 to 0.60; Pfor trend=0.002). TIMP2 levels were not associated with prevalent cardiovascular disease.
Conclusion: A strong association between lower levels of circulating pro-MMP1 and TIMP1 and risk of prevalent cardiovascular disease in a general population cohort over 40 years is evident, independent from common cardiovascular and inflammatory risk factors. The role of MMP1 and its tissue inhibitors, should be tested further in prospective studies of cardiovascular disease.