Clinical InvestigationCongestive Heart FailureCirculating matrix metalloproteinase-2 but not matrix metalloproteinase-3, matrix metalloproteinase-9, or tissue inhibitor of metalloproteinase-1 predicts outcome in patients with congestive heart failure
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Materials and methods
We recruited 88 consecutive patients with advanced HF attending the outpatient HF clinic of the Tel Aviv Sourasky Medical Center. Patients with CHF within New York Heart Association (NYHA) functional classes II-IV were included. The local research ethics committee approved the study protocol and all patients gave written informed consent.
At baseline, patients had a full medical history taken, clinical examination performed, and NYHA class assigned. Patients were followed up every 1 to 3 months
Results
Mean age of the study patients was 72 ± 12 years, their median NYHA was 2.8, and their mean ejection fraction was 38% ± 14%. Sixty-three (72%) of the patients were males. Of the total 88 patients, 72 (82%) were receiving either angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, 33 (38%) were on spironolactone, 58 (66%) were on β-blockers, and 24 (21%) were receiving digoxin.
Matrix metalloproteinase-2 serum levels significantly correlated with age (r = 0.33, P < .01,
Discussion
We have found that MMP-2, -9, and TIMP-1 serum levels were increased in patients with CHF as compared with control subjects. Levels of MMP-2 but not of the other MMPs or TIMP-1 correlated with the clinical status of the patients exhibited by their NYHA scores. These findings are in line with a recent publication,9 yet partially discordant with a study from Wilson et al10 showing that MMP-2 levels did not differ between patients with CHF and subjects with nonfailing hearts. These apparent
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Affiliated to the Tel Aviv University, Sackler School of Medicine, Tel Aviv, Israel.