Buscar
Mostrando ítems 1-10 de 704
Assessment of ventilatory neuromuscular drive in patients with obstructive sleep apnea
(Associação Brasileira de Divulgação Científica, 1998-04-01)
The presence of abnormalities of the respiratory center in obstructive sleep apnea (OSA) patients and their correlation with polysomnographic data are still a matter of controversy. Moderately obese, sleep-deprived OSA ...
Chronic phenytoin reduces hypoxic ventilatory responses in rats
(2015)
Arterial afferents provide sensory information that participates in the peripheral control of ventilation. The carotid body chemosensory afferents increase their frequency of discharge in response to hypoxia, increasing ...
Serotoninergic receptors in the anteroventral preoptic region modulate the hypoxic ventilatory response
(Elsevier B.V., 2006-08-01)
Hypothalamus is a site of integration of the hypoxic and thermal stimuli on breathing and there is evidence that serotonin (5-HT) receptors in the anteroventral preoptic region (AVPO) mediate hypoxic hypothermia. Once 5-HT ...
Serotoninergic receptors in the anteroventral preoptic region modulate the hypoxic ventilatory response
(Elsevier B.V., 2006-08-01)
Hypothalamus is a site of integration of the hypoxic and thermal stimuli on breathing and there is evidence that serotonin (5-HT) receptors in the anteroventral preoptic region (AVPO) mediate hypoxic hypothermia. Once 5-HT ...
Short-Term Sustained Hypoxia Elevates Basal and Hypoxia-Induced Ventilation but Not the Carotid Body Chemoreceptor Activity in Rats
(Frontiers Media Sa, 2018-02-27)
Exposure to chronic sustained hypoxia (SH), as experienced in high altitudes, elicits an increase in ventilation, named ventilatory acclimatization to hypoxia (VAH). We previously showed that rats exposed to short-term(24 ...
Seasonal variation of hypoxic and hypercarbic ventilatory responses in the lizard Tropidurus torquatus
(Elsevier B.V., 2019-11-01)
Carbon dioxide (CO2) and oxygen (O-2) influence the breathing pattern of reptiles, especially when CO2 is in excess or O-2 at low concentrations and the effects of these gases on the respiratory response varies according ...
Orexin in the toad Rhinella schneideri: The location of orexinergic neurons and the role of orexin in ventilatory responses to hypercarbia and hypoxia
(Elsevier B. V., 2014-11-27)
Recent reports have suggested that orexins, also known as hypocretins, play an important role in the modulation of respiratory control in mammals, but there are no data available describing the role of the orexinergic ...
Caution for using ventilatory frequency as an indicator of stress in fish
(Elsevier B.V., 2004-04-30)
This study tested the use of ventilatory frequency (VF) as an indicator of stress in the Nile tilapia, Oreochromis niloticus (L.). Firstly, we tested the relationship between VF and plasma cortisol after confinement. ...