Results 111 to 120 of about 38,036 (248)
Acute exercise‐induced improvements in cognition: Role of cerebral blood flow and metabolism
Experimental Physiology, EarlyView.Abstract Physical activity is widely recognized for its ability to promote brain health, with acute exercise transiently enhancing cognition and long‐term training attenuating cognitive decline. However, the mechanisms underlying these benefits remain incompletely understood.
Takeshi Hashimoto, Shigehiko Ogoh
wiley +1 more source
Simultaneous hypoxemia and hypercapnia frequently occur in conditions such as obstructive sleep apnea, which may cause peripheral and cerebral vascular dysfunction.
0000003952 +5 more
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Experimental Physiology, EarlyView.Abstract Cerebral blood flow (CBF) is essential for sustaining neuronal metabolism and cognitive performance; however, the precise relationship between perfusion and cognition remains unclear. Although ageing and disease are associated with progressive declines in CBF and cognitive impairment, the acute effects of altered CBF under environmental ...
Hiroki Nakata +2 more
wiley +1 more source
Atropine does not attenuate cerebral vasodilatation during hypercapnia
, 1982 To study the contribution of cholinergic nerves to cerebral vasodilation during hypercapnia, we blocked muscarinic cholinergic receptors with atropine. We used two new approaches.
D. W. Busija, D. D. Heistad
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Contributions of vascular ageing to late‐onset Alzheimer's disease
Experimental Physiology, EarlyView.Abstract Late‐onset Alzheimer's disease (LOAD) is an age‐related disease that is strongly associated with vascular risk factors and cerebrovascular impairments. As such, changes in the vasculature with advancing age likely contribute to LOAD, but the mechanisms underlying these contributions remain incompletely understood.
Skylyn J. Ferguson +2 more
wiley +1 more source
Myocardial oxygen supply during hypocapnia and hypercapnia in the dog
, 1986 It has been postulated that a coronary vasoconstriction during hypocapnia might be opposed by a compensating coronary vasodilatation due to impaired myocardial oxygen supply.
Jan C. Wexels
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Carotid artery dissection linked to intermittent apnoeic swimming: A case–control study
Experimental Physiology, EarlyView.Abstract Internal carotid artery (ICA) dissection is a rare and potentially devastating cause of cerebral ischaemia, initiated by an intimal tear or rupture of the vasa vasorum, that can lead to an intraluminal thrombus, vascular stenosis, occlusion, or dissecting aneurysm formation.
Damian M. Bailey +14 more
wiley +1 more source
Effects of post HI salvinorin A administration on pial artery dilation to hypercapnia.
, 2013 HI with DMSO impaired dilation of pial artery to hypercapnia. SA administrated at onset and 30 min after HI preserved the dilation of pial artery to moderate and severe hypercapnia, which were blunted by norbinaltorphimine (Norbin).
Zhenhong Wang (314457) +4 more
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Hypercapnia and lung function parameters in chronic obstructive pulmonary disease
BMC Pulmonary MedicineBackground In advanced chronic obstructive pulmonary disease (COPD), hypercapnia may occur due to severe bronchial obstruction with lung hyperinflation.
Lukas Gernhold +5 more
doaj +1 more source
Thoracoabdominal motion during hypercapnia, hypoxia, and exercise
, 1985 We measured, in 11 healthy volunteers, the contributions of rib cage and abdomen–diaphragm compartments to increased ventilation caused by hypercapnia, hypoxia, and exercise to determine whether different stimuli produce similar or different patterns of
A. S. Rebuck +3 more
core +1 more source