Coronary Arterioles
Mostrando 1-12 de 15 artigos, teses e dissertações.
-
1. Efeitos da poluição atmosférica de origem veicular no sistema cardiopulmonar de camundongos Swiss (Mus musculus L.) recém-natos expostos até a idade adulta / Effects of atmospheric pollutotion generated by traffic on cardiopulmonary system of Swiss mice (mus musculus) from birth to adulthood
INTRODUÇÃO: A exposição contínua desde o nascimento à poluição atmosférica de grandes centros urbanos de origem predominante veicular, contribui para eventos cardiopulmonares em adultos. A inflamação e remodelamento induzidos pelos poluentes podem modular a resposta vascular a mediadores e alterar a sua patência e reatividade contribuindo para ev
Publicado em: 2008
-
2. "Efeito da poluição atmosférica urbana da cidade de São Paulo nas células sangüíneas e no sistema cardiopulmonar. Estudo morfo-funcional em camundongos in vivo" / Effect of urbain air pollution of Sao Paulo city in the blood and cardiopulmonary system : a morpho-functional study in mice in vivo
Objective: verify if air pollution of São Paulo city induces alterations in blood and cardiopulmonary systems. MM: Balb/c mice were exposed during 7, 14, 21, 30 and 45 days to 3 chambers: Clean (control), Intermediate (PM only) and Dirty (external air). After exposure, animals were ventilated (FlexiVent) and collected lung mechanics data and blood, heart an
Publicado em: 2005
-
3. Aging impairs flow-induced dilation in coronary arterioles: role of NO and H2O2
Aging contributes significantly to the development of cardiovascular disease and is associated with elevated production of reactive oxygen species (ROS). The beneficial effects of nitric oxide (NO)-mediated vasodilation are quickly abolished in the presence of ROS, and this effect may be augmented with aging. We previously demonstrated an age-induced impairm
American Physiological Society.
-
4. ABNORMALITIES IN THE PULMONARY ARTERIOLES IN SOME CASES OF CORONARY ARTERY DISEASE
-
5. Necrotizing arteritis with giant cells associated with haemolytic anaemia
Necrotizing arteritis with giant cells, involving the aorta, pulmonary and coronary arteries, and coronary, splenic, and renal arterioles was found at necropsy in a 74-year-old male who had died with severe haemolytic anaemia associated with cold haemagglutinins.
-
6. Effect of compliance and hematocrit on wall shear stress in a model of the entire coronary arterial tree
A hemodynamic analysis is implemented in the entire coronary arterial tree of diastolically arrested, vasodilated pig heart that takes into account vessel compliance and blood viscosity in each vessel of a large-scale simulation involving millions of vessels. The feed hematocrit (Hct) is varied at the inlet of the coronary arterial tree, and the Fahraeus-Lin
American Physiological Society.
-
7. Role of MCP-1 in tumor necrosis factor-α-induced endothelial dysfunction in type 2 diabetic mice
Tumor necrosis factor-α (TNF-α) upregulates the expression of monocyte chemoattractant protein-1 (MCP-1) and adhesion molecules in type 2 diabetes. We hypothesized that TNF-α and MCP-1 may interact to contribute to the evolution of vascular inflammation and endothelial dysfunction in coronary arterioles in type 2 diabetes. To test this hypothesis, we admi
American Physiological Society.
-
8. Autoradiographic characterization of beta adrenergic receptors in coronary blood vessels and myocytes in normal and ischemic myocardium of the canine heart.
This light microscopic autoradiographic study was performed to test the hypotheses that (a) the density of beta adrenergic receptors (BAR) may differ in various components of the heart and (b) BAR in certain components of the heart may exhibit a selective response to pharmacologic and pathological stimuli. Blocks of canine left ventricle were frozen and tiss
-
9. Vascular remodelling in intramyocardial resistance vessels in hypertensive human cardiac transplant recipients.
OBJECTIVE: Cardiac transplant recipients often develop hypertension as a side effect of immunosuppressive treatment. The aim of this study was to use the serial endomyocardial biopsies taken to monitor rejection to study the early and sequential arterial changes in human myocardial resistance arteries as hypertension develops. METHODS: At least 14 biopsies w
-
10. Acute haemodynamic effects of felodipine during beta blockade in patients with coronary artery disease.
The acute effects of felodipine on left ventricular function and haemodynamics were studied in 11 patients with coronary artery disease. To block reflex sympathetic activation due to peripheral vasodilatation and to avoid effects secondary to changes in heart rate all patients received a standard regimen of beta adrenoceptor blockade and all measurements wer
-
11. Role of Growth Factors in Coronary Morphogenesis
This communication briefly reviews the role of angiogenic growth factors in myocardial vessel formation during development. The earliest signs of vascularization are the migration and differentiation of angioblasts from the epicardium and subepicardium into the myocardium. A regulator of this process is vascular endothelial growth factor (VEGF), which is pro
-
12. Regulation of nitric oxide consumption by hypoxic red blood cells
The homeostasis of nitric oxide (NO) is attained through a balance between its production and consumption. Shifts in NO bioavailability have been linked to a variety of diseases. Although the regulation of NO production has been well documented, its consumption is largely thought to be unregulated. Here, we have demonstrated that under hypoxic conditions, NO
National Academy of Sciences.