PMID- 15056834 OWN - NLM STAT- MEDLINE DCOM- 20041021 LR - 20190819 IS - 1346-9843 (Print) IS - 1346-9843 (Linking) VI - 68 IP - 4 DP - 2004 Apr TI - Increased circulating matrix metalloproteinase-2 in patients with hypertrophic cardiomyopathy with systolic dysfunction. PG - 355-60 AB - BACKGROUND: Some patients with hypertrophic cardiomyopathy (HCM) develop left ventricular (LV) wall thinning associated with LV dilatation and systolic dysfunction. Recently, matrix metalloproteinases (MMPs) and tissue inhibitors of MMPs (TIMPs) were reported to be involved in ventricular remodeling, however, little is known about MMPs and TIMPs in patients with HCM. METHODS AND RESULTS: Enzyme-linked immunoassays were used to measure the plasma concentrations of MMP-2, MMP-3, MMP-9, TIMP-1, and TIMP-2 in 11 patients with HCM accompanied by systolic dysfunction (fractional shortening (FS) <25%, group A), 17 patients with HCM who had preserved systolic function (FS> or =25%, group B), and 50 age-matched clinically healthy control subjects (mean age: 57 years). The concentration of MMP-2 in group A was significantly higher than in group B and the control subjects (1,124 +/- 84, 792 +/- 49, 809 +/- 26 ng/ml, respectively), whereas there was no significant difference between group B and the control subjects. MMP-2 concentrations significantly increased as the New York Heart Association functional class increased in patients with HCM. TIMP-2 was also significantly higher in group A patients than in group B and the control subjects (45.3 +/- 4.7, 34.6 +/- 2.2, 33.7 +/- 1.8 ng/ml, respectively), but there was no difference between group B and control subjects. TIMP-1 was significantly higher in HCM patients than in control subjects. MMP-3 and MMP-9 concentrations did not differ among the 3 groups. Both MMP-2 and TIMP-2 correlated significantly with FS and LV dimension, negatively and positively, respectively. CONCLUSIONS: These results suggest that changes in the release and activity of MMP-2 and TIMP-2 may be associated with the mechanisms responsible for cardiac remodeling in patients with HCM. FAU - Noji, Yoshihiro AU - Noji Y AD - Molecular Genetics of Cardiovascular Disorders, Division of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Japan. FAU - Shimizu, Masami AU - Shimizu M FAU - Ino, Hidekazu AU - Ino H FAU - Higashikata, Toshinori AU - Higashikata T FAU - Yamaguchi, Masato AU - Yamaguchi M FAU - Nohara, Atsushi AU - Nohara A FAU - Horita, Takahiro AU - Horita T FAU - Shimizu, Kuniyoshi AU - Shimizu K FAU - Ito, Yuji AU - Ito Y FAU - Matsuda, Takeshi AU - Matsuda T FAU - Namura, Masanobu AU - Namura M FAU - Mabuchi, Hiroshi AU - Mabuchi H LA - eng PT - Journal Article PL - Japan TA - Circ J JT - Circulation journal : official journal of the Japanese Circulation Society JID - 101137683 RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - 127497-59-0 (Tissue Inhibitor of Metalloproteinase-2) RN - EC 3.4.24.24 (Matrix Metalloproteinase 2) SB - IM MH - Cardiomyopathy, Hypertrophic/*blood/complications/physiopathology MH - Disease Progression MH - Electrocardiography MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Heart Failure/etiology MH - Humans MH - Male MH - Matrix Metalloproteinase 2/*blood/physiology MH - Middle Aged MH - Sensitivity and Specificity MH - Systole MH - Tissue Inhibitor of Metalloproteinase-1/blood MH - Tissue Inhibitor of Metalloproteinase-2/*blood/physiology MH - Ventricular Remodeling/*physiology EDAT- 2004/04/02 05:00 MHDA- 2004/10/22 09:00 CRDT- 2004/04/02 05:00 PHST- 2004/04/02 05:00 [pubmed] PHST- 2004/10/22 09:00 [medline] PHST- 2004/04/02 05:00 [entrez] AID - 10.1253/circj.68.355 [doi] PST - ppublish SO - Circ J. 2004 Apr;68(4):355-60. doi: 10.1253/circj.68.355.