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Early sign of atherosclerosis in slow coronary flow and relationship

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dc.contributor.author Tanriverdi, H
dc.contributor.author Evrengul, H
dc.contributor.author Mergen, H
dc.contributor.author Acar, C
dc.contributor.author Seleci, D
dc.contributor.author Kuru, O
dc.contributor.author Tanriverdi, S
dc.contributor.author Kaftan, A
dc.date.accessioned 2019-08-19T13:16:39Z
dc.date.available 2019-08-19T13:16:39Z
dc.date.issued 2007
dc.identifier.issn 0910-8327
dc.identifier.issn J9 HEART VESSELS
dc.identifier.uri http://acikerisim.pau.edu.tr:8080/xmlui/handle/11499/19076
dc.description.abstract Increase in carotid artery intima-media thickness (IMT) is an early sign of atherosclerosis. Slow coronary flow (SCF) is characterized by delay of opacification of coronary arteries in coronary angiography in the absence of any evident obstructive lesion, but its etiopathogenesis remains unclear. Genes that regulate the renin angiotensin system also play a role in developing cardiovascular system disorders. The presence of deletion (D) allele in angiotensin converting enzyme (ACE) gene polymorphism is associated with coronary artery disease. The aim of this study was to investigate the carotid artery IMT measurement, as an early sign of atherosclerosis, in patients with SCF and without SCF and also to assess the effect of the renin-angiotensin gene system on carotid IMT. Forty-four patients with angiographically proven SCF and 44 cases with normal coronary flow (NCF) pattern with similar risk profile were enrolled in the study. Coronary flow patterns of the cases were determined by thrombolysis in myocardial infarction (TIMI) frame count method. Intima-media thickness was measured by recording ultrasonographic images of both the left and right common carotid artery with a 12-MHz linear array transducer. ACE I/D polymorphism and Angiotensin II tip 1 receptor (AT1R) A/C gene polymorphism were determined by polymerase chain reaction (PCR) amplification. Demographic characteristics and coronary artery disease risk factors of SCF and NCF groups were similar. Mean TIMI frame count and carotid IMT (mm) were significantly higher in the SCF group than controls (45.9 +/- 12 vs 23.3 +/- 3.7, P = 0.0001; 0.75 +/- 0.08 vs 0.69 +/- 0.06, P = 0.0001, respectively). Mean TIMI frame count was positively correlated with IMT of carotid artery in correlation analysis (r = 0.45, P = 0.0001). When analyzed in regard to ACE genotype in all subjects, IMT values were statistically different (0.78 +/- 0.06 for DD genotype, 0.72 +/- 0.05 for ID genotype, and 0.64 +/- 0.06 for II genotype, P = 0.0001). This difference remained significant in subgroup analyses for each genotype. No association could be observed between the AT1R A/C-1166 polymorphism and IMT of carotid artery measurement (P > 0.05). Lack of association was still observed with analysis carried out when genotype effect was assumed to be inherited as additive (CC versus AA versus AC) or dominant (AA versus AC+CC). Increased IMT in patients with SCF shows that subclinical atherosclerosis may play role in this phenomenon. This increase was most marked in the presence of D allele of ACE genotype, which is associated with vascular hypertrophy.
dc.language.iso English
dc.publisher SPRINGER
dc.relation.isversionof 10.1007/s00380-006-0925-1
dc.subject slow coronary flow; intima-media thickness; carotid atherosclerosis; ACE
dc.subject I/D polymorphism; renin-angiotensin gene system; AT(1)R A/C-1166
dc.subject polymorphism
dc.title Early sign of atherosclerosis in slow coronary flow and relationship
dc.title with angiotensin-converting enzyme I/D polymorphism
dc.type Article
dc.relation.journal HEART AND VESSELS
dc.identifier.volume 22
dc.identifier.issue 1
dc.identifier.startpage 1
dc.identifier.endpage 8
dc.identifier.index WOS

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