Mesenteric Blood Vessels
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
The blood supply in the small intestine of seven Tamandua tetradactyla (Linnaeus, 1758), was studied. The method included preparation of the macroscopic collection report, perfusion of the arterial network with water (40ºC), injection of colored latex (Neoprene 650®, 2350-0003 Suvinil® dye), fixation in formaldehyde (10%), and preservation in ethanol (50%
Zoologia (Curitiba). Publicado em: 2011-08
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2. A artéria celíaca em Didelphis albiventris (gambá) = The celiac artery in Didelphis albiventris (opossum) / The celiac artery in Didelphis albiventris (opossum)
Background: This member of the Didelphidea family, commonly known as opossum, is widely distributed in the American territory, with species found from southern Canada up to northern Argentina. Similarly to all marsupials, they are characterized by a short gestational period, followed by a long development period. Opossums are arboreal, terrestrial slow anima
Publicado em: 2011
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3. A obesidade diminui a resposta de artérias mesentéricas de resistência a agonistas canabinóides. / Obesity decreases the response of resistance mesenteric arteries to cannabinoid agonists.
Este estudo investigou o efeito da obesidade sobre a resposta de artérias mesentéricas a agonistas canabinóides. Ratos obesos Zucker (OZRs) apresentaram reduzido relaxamento à anandamida, aos agonistas CB1 e CB2 e à capsaicina (agonista vanilóide) comparados aos controles (LZRs). A expressão dos receptores CB1 e CB2 foi menor em OZRs. O bloqueio de ca
Publicado em: 2010
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4. A key role for Na+/K+-ATPase in the endothelium-dependent oscillatory activity of mouse small mesenteric arteries
Oscillatory contractile activity is an inherent property of blood vessels. Various cellular mechanisms have been proposed to contribute to oscillatory activity. Mouse small mesenteric arteries display a unique low frequency contractile oscillatory activity (1 cycle every 10-12 min) upon phenylephrine stimulation. Our objective was to identify mechanisms invo
Brazilian Journal of Medical and Biological Research. Publicado em: 09/10/2009
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5. RelaÃÃo dos achados endoscÃpicos e dopplerfluxomÃtricos na colopatia da hipertensÃo porta da esquistossomose mansÃnica: estudo longitudinal
The relationship between colonoscopic features, histopathologic changes and Doppler ultrasound measurements in colonic mucosal, in patients with hepatosplenic schistosomiasis, before and after splenectomy and ligature of the left gastric vein was analysed. The study was performed using colonoscopy and Doppler ultrasonography. Sixteen patients were divided in
Publicado em: 2009
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6. Estudo das alterações renais e vasculares induzidas pelo veneno de Tityus serrulatus / Study of renal and blood vessel alterations induced by Tityus serrulatus venom
According to the Brazilian Ministry of Health, about 8000 cases of scorpion envenomation are reported yearly in Brazil. Most cases are due to the sting of Tityus serrulatus, known popularly as yellow scorpion. It belongs to the Arachnidea, class, Scorpionidae order, Buthidae family, Tityinae subfamily and Tityus genus. It is present in the Brazilian States o
Publicado em: 2005
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7. Alterações semelhantes a displasia fibromuscular (ADSFM) em vasos mesentericos : um fenomeno de remodelamento?
The study of vascular diseases is of growing importance, since cardiovascular diseases are one of the most important causes of death. Arterial remodelling is a non-specific phenomenon due to various different pathological processes. The aim ofthis study was to investigate adventitial fibromuscular dysplasia-like lesions (FMDLL) in mesenteric arteries and to
Publicado em: 2001
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8. Elastic vascular sclerosis of mesenteric blood vessels in argentaffin carcinoma
Argentaffin carcinoma (carcinoid tumour) of the ileum has been found to be associated with ischaemic ileal necrosis due to elastic sclerosis of the mesenteric blood vessels. This vascular change was present in 17 out of 25 ileal tumours, all of them invasive, but was absent in 75 appendicular, rectal, and other carcinoids. The pathology is described and esse
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9. Intestinal blood flow is controlled by both feed arteries and microcirculatory resistance vessels in freely moving rats.
1. In freely moving rats, intestinal blood flow, aortic blood pressure and blood pressure at the base of mesenteric arcades were measured simultaneously so as to determine the role of feed arteries and of the microcirculation in the control of intestinal vascular resistance. Segmental resistances of feed arteries (Rfeed) and of microcirculatory vessels (Rmic
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10. Direct observations of responses of mesenteric microcirculation of the rat to circulating noradrenaline.
The responses of mesenteric microcirculation of the rat to circulating noradrenaline were studied by in vivo microscopy, using a photo-electric device placed on a television monitor to measure changes in diameter of individual vessels. Blood flow was measured in the anterior mesenteric artery with an electromagnetic flow transducer, mesenteric vascular condu
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11. Influence of pressure alterations on tone and vasomotion of isolated mesenteric small arteries of the rat.
1. Myogenic responses may account for control of organ blood flow. The study of these responses without interference from the organ requires an isolation technique for vessels which contribute significantly to flow resistance. This study reports on experiments on isolated small mesenteric arteries. 2. Distal rat mesenteric arcade arteries and first-order bra
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12. Transfer of nitric oxide by blood from upstream to downstream resistance vessels causes microvascular dilation
The discovery that hemoglobin, albumin, and glutathione carry and release nitric oxide (NO) may have consequences for movement of NO by blood within microvessels. We hypothesize that NO in plasma or bound to proteins likely survives to downstream locations. To confirm this hypothesis, there must be a finite NO concentration ([NO]) in arteriolar blood, and up
American Physiological Society.