Autonomic Denervation
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Evaluation of the Autonomic Nervous System in Chronic Chagasic Cardiopathy: A Systematic Review of the Literature
Abstract Background The importance of regional sympathetic denervation in the pathophysiology and prognosis of Chagas disease has been recognized. Objective To conduct a review of studies that have assessed dysautonomia in chronic Chagas heart disease. Methods The search was performed on the Medline, Pubmed, Lilacs and SciELO databases. The inclusion c
Int. J. Cardiovasc. Sci.. Publicado em: 2020-12
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2. O que esperar da nova proposta de reforma administrativa: uma análise da Proposta de Emenda à Constituição (PEC) 32/20
Abstract Background The importance of regional sympathetic denervation in the pathophysiology and prognosis of Chagas disease has been recognized. Objective To conduct a review of studies that have assessed dysautonomia in chronic Chagas heart disease. Methods The search was performed on the Medline, Pubmed, Lilacs and SciELO databases. The inclusion c
Rev. Adm. Pública. Publicado em: 2020-12
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3. Avaliação da função ventricular sistólica e diastólica pelo ecocardiograma transesofágico e da capacidade funcional em ratos espontaneamente hipertensos submetidos à desnervação sino-aórtica / Evaluation of the systolic and diastolic ventricular function by transesophageal echocardiogram and functional capacity in spontaneously hypertensive rats submitted to sinoaortic denervation
INTRODUÇÂO: Durante o desenvolvimento da hipertensão arterial sistêmica (HAS) ocorre a hiperatividade simpática, que está relacionada ao comprometimento dos sistemas baro e quimiorreflexo arteriais e disfunção ventricular esquerda (VE). Entretanto, a função ventricular direita (VD) tem sido pouco avaliada no contexto da HAS associada à desnervaç�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/10/2011
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4. Influência da integridade dos barorreceptores nos ajustes morfofuncionais cardíacos à hipertensão espontânea em ratos / Influence of baroreceptor integrity on cardiac morpho-functional adjustments to spontaneous hypertension in rats
It has been demonstrated that reduced baroreflex sensitivity is an independent marker of mortality risk. The arterial baroreflex plays an important role in the maintenance of the moment-to-moment stability of blood pressure (BP). Although the contribution of blood pressure variability (BPV) to cardiovascular morbidity and mortality is well established, the m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/07/2011
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5. Effect of carotid and aortic baroreceptors on cardiopulmonary reflex: the role of autonomic function
We determined the sympathetic and parasympathetic control of heart rate (HR) and the sensitivity of the cardiopulmonary receptors after selective carotid and aortic denervation. We also investigated the participation of the autonomic nervous system in the Bezold-Jarish reflex after selective removal of aortic and carotid baroreceptors. Male Wistar rats (220-
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-07
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6. Effects of aerobic exercise training on cardiac hemodynamic, autonomic and morphofunctional adaptations in spontaneously hypertensive rats: role of baroreflex / Efeitos do treinamento físico aeróbio nas adaptações hemodinâmicas, autonômicas e morfofuncionais cardíacas da hipertensão espontânea: influência do barorreflexo
Baroreceptors regulate moment-to-moment changes in blood pressure (BP) and respond for the adequate modulation of autonomic nervous system in physiological situations. In arterial hypertension, there is autonomic function impairment with descreased baroreflex sensitivity and sympathetic activity predominance, besides the progressive cardiac morphofunctional
Publicado em: 2010
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7. Effects of sympathectomy promoted by guanetidine on femurs of ovariectomized rats. / Efeito da simpatectomia provocada pela guanetidina sobre fêmures de ratas castradas.
The bone sympathetic innervation influences the osteoblastic activity and supports the participation of Autonomic Nervous System on the bone formation regulation. Treatment with guanetidine promotes denervation of the sympathetic system in humans as well as animals. This work aims at investigating participation of the sympathetic system on the femur biology
Publicado em: 2005
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8. Autonomic denervation in the experimental American trypanosomiasis in rats: functional response to neurotoxins
Revista do Instituto de Medicina Tropical de São Paulo. Publicado em: 2002
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9. Supersensitivity to both tyramine and noradrenaline in diabetic autonomic neuropathy.
Cardiovascular responses to intravenously infused tyramine and noradrenaline were measured in five normal subjects, five insulin-dependent diabetics and five insulin-dependent diabetics with autonomic neuropathy. Tyramine infusion produced a statistically significant increase in systolic blood pressure (BP) in the autonomic neuropaths only (p less than 0.001
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10. Assessment of pupillary light reflex latency and darkness adapted pupil size in control subjects and in diabetic patients with and without cardiovascular autonomic neuropathy.
Increased pupillary light reflex latencies were found more often than a reduced darkness pupil size in diabetic patients with and without abnormal cardiovascular reflexes. This finding suggests that parasympathetic pupillary dysfunction precedes sympathetic pupillary denervation in diabetic autonomic neuropathy.
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11. Mucociliary clearance in patients with chronic autonomic failure.
Mucociliary clearance was measured in four patients with chronic autonomic failure and normal ventilatory function using a method of scanning the clearance of inhaled polystyrene particles tagged with 99mTc. Previous surgical and experimental evidence has suggested that autonomic denervation might be expected to impair clearance. However, the four patients i
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12. Neurohumoral mechanisms and the role of arterial baroreceptors in the reno-vascular response to haemorrhage in rabbits.
1. Conscious rabbits, with implanted renal artery Doppler flow probes were bled at a constant rate (4 ml min-1). We assessed the contribution of autonomic, hormonal and local factors to the renal vasoconstrictor response to 20% loss of blood volume (BV) and the role of the sinoaortic baroreceptors in the neurohumoral response. 2. With intact autonomic effect