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, 37 (1), 117-122

Relationship Between Matrix metalloproteinase-9 and Common Carotid Artery Intima Media Thickness

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Relationship Between Matrix metalloproteinase-9 and Common Carotid Artery Intima Media Thickness

Maged Abdelnaseer et al. Neurol Sci.

Abstract

Atherosclerosis causes significant morbidity and mortality. Carotid intima media thickness (IMT) predicts future ischaemic strok e incidence. Matrix metalloproteinases (MMPs) play a considerable role in atherosclerosis and hold therapeutic promise as well. To investigate the relationship between serum level of matrix metalloproteinase-9 (MMP-9) and common carotid artery intima media thickness (CCA-IMT) in patients with ischaemic stroke and asymptomatic subjects. Thirty patients with a previous ischaemic stroke and 30 asymptomatic volunteers were recruited. Assessment of vascular risk factors, serum level of MMP-9 and CCA-IMT on both sides was performed. The IMT of both CCAs correlated positively with the serum MMP-9 level in asymptomatic subjects (p = 0.000), even after adjustment for other risk factors. In the patients group, this positive correlation was significant for the right but not for the left CCA (right CCA: p = 0.023, left CCA: p = 0.0284). Fasting blood sugar correlated positively with serum levels of MMP-9 in asymptomatic subjects (p = 0.005) but did not correlate positively in patients. There was no significant correlation between MMP-9 and age or other investigated laboratory risk factors in either the patient or asymptomatic groups. MMP-9 is positively correlated with CCA-IMT both in stroke patients and asymptomatic subjects. This may indicate that MMP-9 is a possible therapeutic target for stroke prevention.

Keywords: Atherosclerosis; Carotid; MMP-9; Media thickness; Metalloproteinase.

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