Thoracic Aorta
Mostrando 13-24 de 216 artigos, teses e dissertações.
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13. Characterization of coronary arteries in Giant Anteater (Myrmecophaga tridactyla: Myrmecophagidae)
RESUMO Foram utilizados 12 tamanduás-bandeira (Myrmecophaga tridactyla), adultos, sendo seis machos e seis fêmeas, pesando de 20 a 27,32kg, provenientes de vida livre. Foi realizada abertura da cavidade torácica até a visualização do conjunto coração e pulmões e, posteriormente, injeção dos vasos coronários. A artéria coronária direita emergia,
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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14. Pharmacological characterization of the calcium influx pathways involved in nitric oxide production by endothelial cells
RESUMO Objetivo: Caracterizar as vias do influxo de cálcio envolvidas no aumento sustentado da concentração intracelular de cálcio na célula endotelial, essencial para a síntese e a liberação de fatores relaxantes. Métodos: Analisamos o efeito de derivados pirazólicos sintetizados recentemente, descritos como inibidores seletivos para canais ORAI
Einstein (São Paulo). Publicado em: 03/06/2019
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15. Relationships Between Phenotype and Function of Blood CD4+ T-Cells and Ascending Thoracic Aortic Aneurysm: an Experimental Study
Abstract Introduction: Non-familial ascending thoracic aorta dilation and aneurysms (TAAs) are silent diseases in elderly patients. Histopathology revealed that functionally polarized infiltrating CD4+ T-cells play a key role in aortic wall weakening. Objective: To evaluate the possible associations between phenotype and cytokine production of circulating
Braz. J. Cardiovasc. Surg.. Publicado em: 2019-02
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16. Effects of Cinnamomum cassia extract on oxidative stress, immunreactivity of iNOS and impaired thoracic aortic reactivity induced by type II diabetes in rats
Type II diabetes is known to cause neuropathy, nephropathy and retinopathy. However, cardiovascular disorders associated with diabetes have been ignored. In traditional medicine, cinnamon (Cinnamomum cassia) bark has been used for its abilities to relieve fever, inflammation and chronic bronchitis. In the present study, the effect of Cinnamomum cassia extrac
Braz. J. Pharm. Sci.. Publicado em: 29/11/2018
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17. Effects of two bisbenzylisoquinoline alkaloids, Antioquine and Tetrandrine, compared to Verapamil in Rat Thoracic Aorta
ABSTRACT The objective of this study was to compare two alkaloids (antioquine and tetrandrine) with verapamil; knowing that the smooth muscle respond to KCl and relationships with calcium. The effects of antioquine and tetrandrine, was studied in adults Wistar rat with modified methods used in the determination of aorta contractility and compared with verapa
An. Acad. Bras. Ciênc.. Publicado em: 2018-04
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18. Total flavonoids from Ampelopsis megalophylla suppress proliferation of vascular smooth muscle cells in vivo and in vitro
ABSTRACT Various benefits of flavonoids for ameliorating cardiovascular diseases have been demonstrated. However, the lowering effects on blood pressure caused by antiproliferative potentials of flavonoids in vascular smooth muscle cells are rare. In this study, the antihypertensive effects of total flavonoids from Ampelopsis megalophylla were investigated.
Braz. J. Pharm. Sci.. Publicado em: 01/02/2018
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19. Hybrid Approach of Aortic Diseases: Zone 1 Delivery and Volumetric Analysis on the Descending Aorta
Abstract Introduction: Conventional techniques of surgical correction of arch and descending aortic diseases remains as high-risk procedures. Endovascular treatments of abdominal and descending thoracic aorta have lower surgical risk. Evolution of both techniques - open debranching of the arch and endovascular approach of the descending aorta - may extend a
Braz. J. Cardiovasc. Surg.. Publicado em: 2017-10
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20. Influence of antihypertensive drugs on aortic and coronary effects of Ang-(1-7) in pressure-overloaded rats
This study investigated the influence of antihypertensive drugs, such as angiotensin-converting enzyme inhibitors (ACEIs), AT1 receptor blockers (ARBs), voltage-gated L-type calcium channel blockers, and mineralocorticoid receptor antagonists (MRAs), on the effects of angiotensin-(1-7) [Ang-(1-7)] on aorta and coronary arteries from pressure-overloaded rats.
Braz J Med Biol Res. Publicado em: 23/03/2017
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21. Effect of tobacco smoke on hydrogen sulfide-induced rat thoracic aorta relaxation
Levels of hydrogen sulfide (H2S), a gaseous signaling molecule, are reduced in the serum of individuals who smoke. We hypothesized that tobacco smoke influenced smooth muscle relaxation by decreasing H2S levels and this effect could also influence expression of cystathionine γ-lyase (CSE) and sulfonylurea receptor-2 (SUR-2). The aim of this study was to exp
Braz J Med Biol Res. Publicado em: 06/02/2017
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22. Thyroxine increases Serca2 and Ryr2 gene expression in heart failure rats with euthyroid sick syndrome
ABSTRACT Objective The current study was aimed at analyzing sarcoplasmic reticulum Ca2+ ATPase (Serca2) and ryanodine receptor type 2 (Ryr2) gene expression in rats subjected to surgery that induced HF and were subsequently treated with T4 using physiological doses. Materials and methods HF was induced in 18 male Wistar rats by clipping the ascending tho
Arch. Endocrinol. Metab.. Publicado em: 10/10/2016
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23. Evaluation of pulmonary sequestration with multidetector computed tomography angiography in a select cohort of patients: A retrospective study
OBJECTIVES: This study aimed to evaluate the role of multidetector computed tomography angiography in diagnosing patients with pulmonary sequestration. METHODS: We retrospectively analyzed the computed tomography studies and clinical materials of 43 patients who had undergone preoperative multidetector computed tomography angiography in our hospital and ha
Clinics. Publicado em: 2016-07
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24. Ortner's Syndrome: Secondary Laryngeal Paralysis Caused by a Great Thoracic Aorta Aneurysm
Introduction Recurrent laryngeal nerve injury caused by cardiovascular disease is a rare condition, and often it is the only prominent sign of an imminent break of an aortic artery aneurysm.
Objective To report left laryngeal paralysis caused by a great aortic arch aneurysm and to highlight the importanc
Int. Arch. Otorhinolaryngol.. Publicado em: 2015-06