title: EFFECT OF RELATIVE GENE EXPRESSION ON PLAQUE VULNERABILITY IN PATIENTS WITH STABLE ANGINA AND PATIENTS WITH ACUTE CORONARY SYNDROME.
abstract: This study was conducted to investigate the effect of relative gene expression on plaque vulnerability in patients with either stable angina or acute coronary syndrome (ACS). A total of 30 patients with ACS, 28 patients with stable angina and 17 healthy volunteers were selected. High resolution ultrasound was used to detect carotid arterial intima-media thickness (IMT) and plaque score, Sandwich enzyme linked immunoassay to determine the change of matrix metalloproteinase (MMP)-9 and tissue inhibitor of matrix metalloproteinase (TIMP)-1. The three groups had no statistically significant difference in age, gender, total cholesterol, triglyceride, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol. MMP-9, TIMP-1, MMP-9/TIMP-1 and IMT, total plaque score, soft plaque score and hard plaque score of patients acute coronary syndrome were obviously higher than those with stable angina and normal people. It was also found that MMP-9 was in a positive correlation with IMT, total and soft plaques score, TIMP-1 was positively correlated with IMT as was MMP-9/TIMP-1. Regardless of age, IMT was in a positive correlation with MMP-9, TIMP-1 and MMP-9/TIMP-1 in partial correlation analysis. All these findings suggest that ACS patients have remarkably higher MMP-9, 1TIMP-1, MMP- 9/TIMP-1, IMT, total plaque score, soft plaque score and hard plaque score compared to patients with stable angina pectoris and healthy subjects (P<0.05) and there are positive correlations between MMP- 9, TIMP-1, 1MMP-8/TIMP-1, total plaque and soft plaque score.
authors.affiliation: Department of Cardiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
authors.forename: N
authors.initials: N
authors.lastname: Chen
authors.affiliation: Department of Cardiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
authors.forename: J Y
authors.initials: JY
authors.lastname: Zhang
authors.affiliation: Department of Cardiology, Nanyang Central Hospital, Nanyang, China.
authors.forename: S Z
authors.initials: SZ
authors.lastname: Yang
authors.affiliation: Department of Cardiology, Nanyang Central Hospital, Nanyang, China.
authors.forename: Y D
authors.initials: YD
authors.lastname: Li
mesh_terms: D054058:Acute Coronary Syndrome / Q000097:blood / Q000235:genetics* / Q000473:pathology; D000368:Aged; D060050:Angina, Stable / Q000097:blood / Q000235:genetics* / Q000473:pathology; D017536:Carotid Artery, Common / Q000000981:diagnostic imaging / Q000473:pathology; D059168:Carotid Intima-Media Thickness; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D015870:Gene Expression; D006801:Humans; D008055:Lipids / Q000097:blood; D008297:Male; D020784:Matrix Metalloproteinase 8 / Q000096:biosynthesis / Q000097:blood* / Q000235:genetics; D020780:Matrix Metalloproteinase 9 / Q000096:biosynthesis / Q000097:blood* / Q000235:genetics; D008875:Middle Aged; D058226:Plaque, Atherosclerotic / Q000097:blood / Q000000981:diagnostic imaging / Q000473:pathology*; D012422:Rupture, Spontaneous; D012720:Severity of Illness Index; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000096:biosynthesis / Q000097:blood* / Q000235:genetics
chemical_list: D008055:Lipids; C560822:TIMP1 protein, human; D019715:Tissue Inhibitor of Metalloproteinase-1; C488762:MMP8 protein, human; D020784:Matrix Metalloproteinase 8; C579270:MMP9 protein, human; D020780:Matrix Metalloproteinase 9