Introduction: Coronary angiography is a Diagnostic-Therapeutic method involving ionizing radiation. This method causes to DNA damage with form double stranded breaks which is followed by the phosphorylation of the histone, H2AX. H2AX is a key factor in the repair process of damaged DNA which will accumulate to damage sites. In human cells, H2AX constitutes about 10% of the H2A ...

OBJECTIVE To investigate the short-term effects of atrial, atrioventricular, and ventricular pacing on myocardial oxygen consumption, myocardial blood flow, and cardiac efficiency in patients with coronary artery disease. DESIGN Prospective study that started at the end of diagnostic coronary angiography in 13 patients and was performed during atrial, atrioventricular, and ventricular pacing ...

background: diagnosis of coronary artery disease (cad) in early stages is vital in decreasing mortality by reducing the risk factors. the aim of this study was to investigate the association between erectile dysfunction (ed) and cad. methods: a total of 200 patients were divided into four groups according to their angiography results: group 1 (g1, n = 59): patients with one-vessel disease (1-vd...

In this paper, an effective method is developed to extract coronary vessels from X-ray digital subtraction angiography (DSA). Unlike the traditional image subtraction technique, we used the independent component analysis (ICA) to separate the coronary vessels and backgrounds. Experimental results indicate that the proposed method can achieve better performance than the traditional & 2011 Elsevi...

This study evaluated the relationship between the location of the most severe coronary artery stenosis and the subsequent acute myocardial infarction (AMI). Methods: Of 1590 patients who were admitted with a diagnosis of AMI, we identified 44 patients who had undergone previous myocardial perfusion SPECT. Thirty-one of these patients also had previous coronary angiography. The relationshi...

Transforming growth factor (TGF) receptor III (TGF R3), or -glycan, binds all 3 TGF ligands and inhibin with high affinity but lacks the serine/threonine kinase domain found in the type I and type II receptors (TGF R1, TGF R2). TGF R3 facilitates signaling via TGF R1/TGF R2 but also has been suggested to play a unique and nonredundant role in TGF signaling. Targeted deletion of Tgfbr3 revealed ...

OBJECTIVE To assess the relation between coronary artery disease and the calcification index on helical computed tomography. METHOD We studied 22 patients (ages ranging from 40 to 70 years) who underwent coronary angiography because of chest pain suggestive of angina pectoris. Findings on coronary angiography were classified as follows: significant obstructive disease (stenosis > or = 50 %), ...

Transforming growth factor (TGF)beta receptor III (TGFbetaR3), or beta-glycan, binds all 3 TGFbeta ligands and inhibin with high affinity but lacks the serine/threonine kinase domain found in the type I and type II receptors (TGFbetaR1, TGFbetaR2). TGFbetaR3 facilitates signaling via TGFbetaR1/TGFbetaR2 but also has been suggested to play a unique and nonredundant role in TGFbeta signaling. Tar...

BACKGROUND Isolated right bundle branch block (RBBB) is a common finding in the general population. The atrioventricular node (AVN) artery contributes to the blood supply of the right bundle branch. Our hypothesis was that the anatomy of the AVN artery and the pattern of dominancy differ between subjects with and without RBBB. METHODS We retrospectively studied the coronary angiography of 92 ...