Abstract：
:Extracellular matrix protein turnover may play an important role in left atrial (LA) remodelling. The aim is to investigate the associations between matrix metalloproteinase (MMPs), tissue inhibitor of metalloproteinase (TIMP-1) and LA volume index (LAVI) and if these associations are independent of TIMP-1 levels. Participants from The Hoorn Study, a population-based cohort study (n = 674), underwent echocardiography. Serum MMPs (i.e., MMP-1, MMP-2, MMP-3, MMP-9, and MMP-10) and TIMP-1 levels were measured with ELISA. Multiple linear regression analyses were used. MMP-1 levels were not associated with LAVI. Higher MMP-2 levels were associated with larger LAVI (regression coefficient per SD increase in MMP (95% CI); 0.03 (0.01; 0.05). Higher MMP-3 and MMP-9 levels were associated with smaller LAVI; -0.04 (-0.07; -0.01) and -0.04 (-0.06; -0.02) respectively. Only in women were higher MMP-10 levels associated with larger LAVI; 0.04 (0.00; 0.07, p-interaction 0.04). Additionally, only in women were higher TIMP-1 levels associated with smaller LAVI; -0.05 (-0.09; -0.01, p-interaction 0.03). The associations between MMPs and LAVI were independent of TIMP-1 levels. In conclusion, serum MMPs are associated with LAVI, independent of CVD risk factors and TIMP-1 levels. In addition, these associations differ according to sex and within MMP subgroups. This shows that the role of MMPs in LA remodelling is complex.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Linssen PBC,Brunner-La Rocca HP,Schalkwijk CG,Beulens JWJ,Elders PJM,van der Heijden AA,Slieker RC,Stehouwer CDA,Henry RMAdoi
10.3390/ijms21144944subject
Has Abstractpub_date
2020-07-13 00:00:00issue
14issn
1422-0067pii
ijms21144944journal_volume
21pub_type
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