Results 121 to 130 of about 57,963 (312)
Inverse Ratio Ventilation for Preventing Intra-Operative Hypercapnia in Children Undergoing Laparoscopic Surgery [PDF]
XD Han, Wangping Zhang, XH Qian
openalex +1 more source
Abstract Acute low oxygen exposure (hypoxia) elicits a hypoxic ventilatory response (HVR), which increases ventilation and mitigates hypoxaemia. During sustained exposure to hypoxia, ventilatory acclimatization increases peripheral chemoreflex (HVR) sensitivity or chemoreflex loop gain (LG).
Benjamin W. L. MacKenzie +3 more
wiley +1 more source
Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley +1 more source
Jie Zhao,1,* Yuanyuan Ji,2,* Baozhu Li,3,* Ke Yang,1 Qi Sun,1 Tao Ma,3 Keliang Xie1 1Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, People’s Republic of China; 2Tianjin Medical University, Tianjin,
Zhao J +6 more
doaj
Optimizing cerebrovascular endothelial health through shear stress modulation
Abstract The endothelium plays a pivotal role in regulating cerebrovascular blood flow, and its dysfunction increases the risk of cerebrovascular disease. Endothelial shear stress, a primary mechanical stimulus for endothelial nitric oxide production, is a key modulator of vascular adaptation.
Erika Iwamoto +2 more
wiley +1 more source
Acute exercise‐induced improvements in cognition: Role of cerebral blood flow and metabolism
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
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
Hypercapnia and lung function parameters in chronic obstructive pulmonary disease
Background 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
Widespread depolarization during expiration: A source of respiratory drive? [PDF]
Respiration influences various pacemakers and rhythms of the body during inspiration and expiration but the underlying mechanisms are relatively unknown.
Barnes, Vernon A. +3 more
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