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The role of the vagus nerve in the generation of cardiorespiratory interactions in a neotropical fish, the pacu, Piaractus mesopotamicus
(Springer, 2009-08-01)
The role of the vagus nerve in determining heart rate (f (H)) and cardiorespiratory interactions was investigated in a neotropical fish, Piaractus mesopotamicus. During progressive hypoxia f (H) initially increased, ...
Vagal stimulation mimics preconditioning and postconditioning of ischemic myocardium in mice by activating different protection mechanisms
(American Physiological Society, 2018-06)
Vagal stimulation (VS) during myocardial ischemia and reperfusion has beneficial effects. However, it is not known whether short-term VS applied before ischemia or at the onset of reperfusion protects the ischemic myocardium. ...
Contribuição tônica do quimiorreflexo carotídeo para o controle vagal cardíaco no repouso, ortostatismo e durante a recuperação após o exercício em pacientes com hipertensão arterial pulmonar
(Universidade Federal de São Paulo (UNIFESP), 2018-11-28)
Pulmonary Arterial Hypertension (PAH) is a rapidly progressive disease with multiple etiologies and an extremely poor prognosis. Patients with PAH present marked autonomic dysfunction, characterized by increase in sympathetic ...
Vagal afferent control of abdominal expiratory activity in response to hypoxia and hypercapnia in rats
(Elsevier B.V., 2014-11-01)
In the present study, we tested the hypothesis that vagal afferent information modulates the pattern of expiratory response to hypercapnia and hypoxia. Simultaneous recordings of airflow, diaphragmatic (DIA) and oblique ...
Respiratory-gated Auricular Vagal Afferent Nerve Stimulation (RAVANS) effects on autonomic outflow in hypertension
(Corea del Sur, 2017-09-05)
Transcutaneous stimulation of the auricular branch of the vagus nerve (ABVN) has been proposed as a non-invasive alternative to vagus nerve stimulation (VNS). However, its cardiovagal effects are inconsistent across studies, ...
High levels of C-reactive protein are associated with reduced vagal modulation and low physical activity in young adults
(WILEY-BLACKWELLMALDEN, 2013-08-02)
The purpose of this study was to examine the relationship between cardiac autonomic control derived from heart rate variability (HRV), high-sensitivity C-reactive protein (hs-CRP) and physical activity (PA) levels measured ...
Vagal tone regulates cardiac shunts during activity and at low temperatures in the South American rattlesnake, Crotalus durissus
(2016-12-01)
The undivided ventricle of non-crocodilian reptiles allows for intracardiac admixture of oxygen-poor and oxygen-rich blood returning via the atria from the systemic circuit and the lungs. The distribution of blood flow ...