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Morphologic and biomechanical changes of thoracic and abdominal aorta in a rat model of cigarette smoke exposure
(2013-08-01)
Background: Smoking is the most relevant environmental factor that affects the development of aortic aneurysm. Smokers have elevated levels of elastase activity in the arterial wall, which leads to weakening of the aorta. ...
Tensile strength and histological changes of abdominal aorta of malnourished rats
(1995-01-01)
The resistance of the abdominal aorta of rats after 6, 7 and 8 weeks of malnutrition, compared with control animals, was evaluated by longitudinal tensiometry. Weakness of this vessel in malnourished rats was demonstrated; ...
Características ultraestruturais do segmento abdominal da aorta de rato albino
(2007-10-01)
The objective of the present research was to investigate the ultrastructural peculiarities of the aortic wall of the rat. Seven young adult rats were used, from which fragments of the infrarenal abdominal aorta were ...
Morphological and biomechanical study of abdominal aorta of rats submitted to experimental chronic alcoholism
(Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, 2005-06-01)
OBJETIVO: avaliar a influência do alcoolismo crônico experimental na morfologia e biomecânica da artéria aorta de ratos. MÉTODOS:ratos Wistar foram divididos em dois grupos de 22 animais. Grupo alcoolista: os ratos receberam ...
Some segmental features on the structure of the aortic wall of the dog
(Blackwell Verlag Gmbh, 2004-06-01)
Structural features of segmental parts of the aorta of the dog were studied by light microscopy (LM) and scanning electron microscopy (SEM). The variability in the wall architecture composition and vascular thickness of ...
Estrutura, ultraestrutura e morfometria da aorta de paca (Cuniculus paca, Linnaeus, 1766) criada em cativeiro
(Arquivo Brasileiro Medicina Veterinaria Zootecnia, 2012-06-01)
The aim of this study was to describe the morphology, morphometry and ultrastructure of segments of thoracic and abdominal aorta portions in four male and female paca (Cuniculus paca). Parts of the segments were examined ...
Collagen is reduced and disrupted in human aneurysms and dissections of ascending aorta
(W B Saunders Co-elsevier Inc, 2008-03-01)
In ascending aorta aneurysms, there is an enlargement of the whole vessel, whereas aortic dissections (ADs) are characterized by the cleavage of the wall into 2 sheets at the external half. We searched if alterations in ...
Anomalia congênita em vasos da base do coração de um potro
(2006-12-01)
Congenital anomalies of heart and large vessels are among more common found in animals, however rare in horses. This survey describes a cardiac anomaly that presents confluence between aorta wall and lung trunk, ramification ...
Some segmental structural features of the aortic wall of domestic chicken (Gallus domesticus)
(Universidade de São Paulo (USP), Faculdade de Medicina Veterinária e Zootecnia (FMVZ), 2003-01-01)
A estrutura segmentar da parede aórtica foi estudada em galo doméstico, em níveis torácico e abdominal, nas dimensões de microscopias óptica e eletrônica de varredura. Secções histológicas selecionadas foram submetidas a ...
Avaliação morfométrica, realizada pelo exame ultrassonográfico, da veia porta, veia cava caudal e aorta abdominal em cães saudáveis de diferentes pesos corpóreos
(2010-12-01)
The diameters and areas of portal vein, caudal vena cava and abdominal aorta are useful measurements in dogs. These values can be easily measured by ultrasonographic exam, and variations of normality can be an important ...