Serum levels of YKL-40 increases in patients with acute myocardial infarction.

Abstract:

OBJECTIVES:YKL-40 is secreted by macrophages, including those in atherosclerotic plaques, neutrophils, and vascular smooth muscle cells. Circulating YKL-40 is elevated in patients with inflammation and increased tissue remodeling. The aim was to examine the sequential changes in serum YKL-40 in patients with acute myocardial infarction (AMI), with and without thrombolytic therapy, as compared with patients with stable coronary artery disease (CAD). METHODS:YKL-40 was measured by radioimmunoassay in serum from 63 patients. A total of 47 patients had their first AMI [30 with ST segment elevation myocardial infarction (STEMI) were thrombolyzed, 17 with non-STEMI were not thrombolyzed] and 16 patients had CAD. RESULTS:Serum YKL-40 at the time of admission was higher in patients with AMI (median: 156 microg/l, range: 40-3000 microg/l) than in patients with CAD (median: 106 microg/l, range: 54-300 microg/l, P=0.048) and healthy participants (median: 102 microg/l, range: 38-514 microg/l, P<0.001). No difference in serum YKL-40 between CAD patients and healthy participants (P=0.89) was observed. No difference in serum YKL-40 between the AMI patients with or without ST-elevations (P=0.12) was observed. The maximum serum YKL-40 during the first 24 h after admission was higher in thrombolyzed STEMI patients than in the nonthrombolyzed, non-STEMI patients (P=0.01) and the CAD patients (P<0.0001). Serum YKL-40 declined consistently from the maximum value just after the AMI and during follow-up. Serum YKL-40 at 90, 180, and 360 days after AMI were significantly higher in nonthrombolyzed than in thrombolyzed patients (P=0.004, P=0.008, P=0.017, respectively). CONCLUSION:These results demonstrated that serum concentrations of YKL-40 are greatly increased in AMI patients with and without thrombolytic therapy.

journal_name

Coron Artery Dis

journal_title

Coronary artery disease

authors

Nøjgaard C,Høst NB,Christensen IJ,Poulsen SH,Egstrup K,Price PA,Johansen JS

doi

10.1097/MCA.0b013e3282f40dd5

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

257-63

issue

4

eissn

0954-6928

issn

1473-5830

pii

00019501-200806000-00007

journal_volume

19

pub_type

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