background and objective: in this research, the effect of chronic dietary soybean aqueous extract on aortic reactivity of streptozotocin (stz)-diabetic rats was investigated. materials and methods: stz-diabetic rats were treated with soybean aqueous extract for two months after diabetes induction. contractile reactivity to kcl and phenylephrine (pe) and relaxation response to acetylcholine (ach...

objective(s): atherosclerosis is an important risk factor for coronary heart disease. neuropeptide y (npy) and its receptors, located in peripheral tissue such as white adipose tissue, have been linked to obesity and fat storage. the role of npy in atherosclerosis has not yet been fully studied, so this study was conducted to further investigate the effect of biie 0246, an npy receptor antagoni...

a strategy employing moderate hypothermia for the replacement of the aortic arch is proposed to avoid the complications of profound hypothermic circulatory arrest. two patients underwent the complete replacement of the aortic arch using three pumps - for the brain, thoracoabdominal aorta, and heart, respectively. there were no complications and the patients were extubated uneventfully. the meth...

to evaluate the acute effect of lovastatin on diabetic endothelial dysfunction, we examined this effect on the aortic rings of streptozotocin-diabetic rats. the endothelial function was assessed in aortic rings isolated from diabetic rats, 12 weeks after treatment with streptozotocin (45 mg/kg, i.p.). the concentration-response curve to acetylcholine (ach) in the aortic rings precontracted with...

background & aims of the study: oxidative stress increases platelet-derived growth factor (pdgf) gene expression in endothelial cells that contributes to vascular dysfunction and atherosclerosis. oxidative stress generates by dys-regulated redox balance between ros producing systems and antioxidant systems. also, curcumin (cur) as a main part of turmeric has anti- inflammatory, antioxidant, ant...

the coarctation of the aorta (coa) is rare in adulthood. diagnosis is made by clinical suspicion and physical findings such as blood pressure difference between the upper and lower extremities, pulse delay in the femoral artery, and systolic murmur over the thoracic spine.the coa in adulthood and in patients with associated aneurysm is challenging and different complications even with proper tr...

background: surgical treatment of a ruptured abdominal aorta aneurysm (raaa) continues to present a significant challenge to surgeons. there are some patient factors such as age and gender that cannot be changed, and comorbid conditions can be optimized but not eliminated.  the purpose of this study was to identify the risk factors affecting high mortality after the surgical repair of an raaa. ...

angiotensin ii is a major endocrine hormone that affects directly both vascular smooth muscle and endothelial cells. since vascular reactivity to angiotensin ii changes in more physiological and pathophysiological conditions, the present study was performed to investigate the effect of intraperitoneal administration of angiotensin-converting enzyme inhibitor and captopril (30 and 50 mg kg-1, on...

aorta is formed in a dynamic environment which gives rise to imbalances between many forces that tend to extend the diameter and length. furthermore, internal forces tend to resist this extension. impedance tomography can show this imbalance to stimulate the stenosis of aortic valve, growth of the elastic, collagen and to effectively reduce the stresses in the underlying tissue. in blood flow, ...

aortic aneurysm is a rare but potentially lethal complication during pregnancy. in this article we described a 30-year-old woman with a large size descending aorta aneurysm (11 cm in length and 5.6 cm in its greatest diameter), who had two term uncomplicated pregnancies. the patient received prophylactic ß-blocker drug during her second pregnancy. both pregnancies were terminated by caesarean s...