Results 61 to 70 of about 4,582 (179)

Muscle chemoreflex alters vascular conductance in nonischemic exercising skeletal muscle

, 1994
Previous studies have shown that the muscle chemoreflex causes an augmented blood pressure response to exercise and partially restores blood flow to ischemic muscle.
L. B. Bell, K. P. O'Hagan, P. S. Clifford, S. W. Mittelstadt   +3 more
core   +1 more source

Obstructive and Central Sleep Apnea in First Ever Ischemic Stroke are Associated with Different Time Course and Autonomic Activation

Nature and Science of Sleep, 2021
Alessia Riglietti,1,* Francesco Fanfulla,2,* Massimo Pagani,3 Daniela Lucini,3,4 Mara Malacarne,3,4 Mauro Manconi,5– 7 Guido Ferretti,8,9 Fabio Esposito,10,11 Carlo W Cereda,12 Marco Pons1 1Department of Pulmonology, Regional Hospital of Lugano ...
Riglietti A, Fanfulla F, Pagani M, Lucini D, Malacarne M, Manconi M, Ferretti G, Esposito F, Cereda CW, Pons M   +9 more
doaj  

The role of acid‐base balance in cerebrovascular and ventilatory responses to CO2 during 10 h normobaric hypoxia

The Journal of Physiology, EarlyView.
Abstract figure legend During 10 h exposures to normobaric hypoxia exposure there was a selective leftward shift in ventilatory response to hyperoxic hypercapnic rebreathing, but not the cerebrovascular response. The key findings are that the resetting of the central chemoreflex to lower PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$ during early hypoxic ...
Holly Barclay, Saptarshi Mukerji, Bengt Kayser, Jui‐Lin Fan   +3 more
wiley   +1 more source

Chemoreflex sensitization occurs in both male and female rats during recovery from acute lung injury

Frontiers in Physiology
IntroductionSex-specific patterns in respiratory conditions, such as asthma, COPD, cystic fibrosis, obstructive sleep apnea, and idiopathic pulmonary fibrosis, have been previously documented.
Kajal Kamra, Kajal Kamra, Irving H. Zucker, Harold D. Schultz, Han-Jun Wang, Han-Jun Wang   +5 more
doaj   +1 more source

Effects of nocturnal periodic breathing on sympathetic nerve activity and ventilatory control at high altitude: a randomised, crossover study

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the randomised crossover study investigating the effects of nocturnal periodic breathing (nPB) on sympathetic activity and ventilatory acclimatisation in hypobaric hypoxia equivalent to 4000 m altitude. Participants completed two 3‐day sojourns where nPB was inhibited by increasing inspiratory CO2 fraction ...
Johanna Roche, James P. Fisher, Peter Rasmussen, Abubaker Ibrahim, Philip N. Ainslie, Rachel Turner, Giovanni Vinetti, Matteo Cesari, Michael Furian, Ambra Stefani, Nikolaus Netzer, Hannes Gatterer, Birgit Högl, Christoph Siebenmann   +13 more
wiley   +1 more source

Testing individual baroreflex responses to hypoxia-induced peripheral chemoreflex stimulation [PDF]

, 2020
INTRODUCTION: Baroreflexes and peripheral chemoreflexes control efferent autonomic activity making these reflexes treatment targets for arterial hypertension.
Hoff, A., Tank, Jens, Kronsbein, H., Diedrich, A., Ehmke, Heimo, Heusser, K., Gerlach, Darius, Heusser, Karsten, Hoff, Alex, Diedrich, André, Hoffmann, F., Tank, J., Hoffmann, Fabian, Ehmke, H., Jordan, Jens, Jordan, J., Gerlach, D.A., Kronsbein, Hendrik   +17 more
core   +1 more source

Cannabinoid exposure during pregnancy: Cardiorespiratory effects and offspring outcomes

The Journal of Physiology, EarlyView.
Abstract figure legend Prenatal exposure to cannabinoids has been investigated across human and animal studies to understand its impact on physiological development. Evidence suggests that early‐life cannabinoid exposure influence multiple developmental processes, extending beyond neurodevelopmental outcomes to potentially affect placental function ...
Luis Gustavo A. Patrone, Luciane H. Gargaglioni   +1 more
wiley   +1 more source

Neural reflex regulation of arterial pressure in pathophysiological conditions: interplay among the baroreflex, the cardiopulmonary reflexes and the chemoreflex

Brazilian Journal of Medical and Biological Research, 1997
The maintenance of arterial pressure at levels adequate to perfuse the tissues is a basic requirement for the constancy of the internal environment and survival.
E.C. Vasquez, S.S. Meyrelles, H. Mauad, A.M. Cabral   +3 more
doaj   +1 more source

Elevated carotid body tonic activity contributes to ventilatory acclimatization and de‐acclimatization to high altitude at rest and during exercise

The Journal of Physiology, EarlyView.
Abstract figure legend Participants spent 13 days at high altitude (3800 m), where the reduced inspired oxygen pressure (↓PiO2$ \downarrow {P_{{\mathrm{i}}{{\mathrm{O}}_2}}}$) which elicited ventilatory acclimatization and increased inhibition of ventilation by transient hyperoxia (ΔV̇E$\Delta {\dot V_{\mathrm{E}}}$).
Ayechew A. Getu, L. Madden Brewster, Travis D. Gibbons, James D. Anholm, Michael Stembridge, Philip N. Ainslie, Jay M. J. R. Carr   +6 more
wiley   +1 more source

Sympathoexcitatory neurotransmission of the chemoreflex in the NTS of awake rats

, 1999
Cardiovascular responses to chemoreflex activation by potassium cyanide (KCN, 20 μg/rat iv) were analyzed before and after the blockade of ionotropic or metabotropic receptors into the nucleus of the solitary tract (NTS) of awake rats. Microinjection of
Leni G. H. Bonagamba, Andréa S. Haibara, Benedito H. Machado   +2 more
core   +1 more source