Results 121 to 130 of about 34,817 (254)

Passive hyperthermia increases blood circulation in specific regions, largely independent of conduit artery mechanics and cardiac performance

Experimental Physiology, EarlyView.
Abstract Passive hyperthermia increases net peripheral and systemic blood flow in humans and other animals, yet the underlying haemodynamic forces that selectively accelerate blood movement remain incompletely characterized. Wave intensity analysis offers insight into the respective contributions of the heart and the vascular system to changes in blood
Nuno Koch Esteves, Kazuhito Watanabe, Francesca R. Cavallo, Ashraf W. Khir, José González‐Alonso   +4 more
wiley   +1 more source

POST-ISCHEMIC TREATMENT WITH CANDESARTAN PROTECTS FROM CEREBRAL ISCHEMIC REPERFUSION INJURY IN NORMOTENSIVE RAT [PDF]

Large body of evidences has indicated that the renin – angiotensin system (RAS) and its effector peptide Angiotensin II may be involved in the pathophysiology of stroke.
نوری, محمد, پناهپور, حمداله   +1 more
core  

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source

Epigenetic modifications of VEGF, cerebral hypoxia, and impaired cerebrovascular autoregulation as early indicators for preterm brain injury

Function
Neurodevelopmental impairments after preterm birth remain prevalent. Preterm brain injury, such as intraventricular hemorrhage (IVH) and periventricular leukomalacia (PVL), occurs due to immature vascularization and impaired cerebral blood flow.
Celina L. Brunsch, Daphne H. Klerk, Dorian Blommaert, Richelle G. Harbers-Middel, Bineta E. Lahr, Annemiek M. Roescher, Torsten Plösch, Elisabeth M. W. Kooi   +7 more
doaj   +1 more source

Cerebral pressure autoregulation and carbon dioxide reactivity during propofol-induced EEG suppression [PDF]

, 2017
We studied cerebral pressure autoregulation and carbon dioxide reactivity during propofol-induced electrical silence of the electroencephalogram (EEG) in 10 patients.
LAM, A. M., MATTA, B. F., MAYBERG, T. S., STREBEL, S.   +3 more
core  

Cooling down for going up: Could selective ‘brain chilling’ mitigate high‐altitude illness?

Experimental Physiology, EarlyView.
Adnan Haq, Damian M. Bailey
wiley   +1 more source

Effect of age on intraoperative cerebrovascular autoregulation and near-infrared spectroscopy-derived cerebral oxygenation [PDF]

, 2017
Background Age is an important risk factor for perioperative cerebral complications such as stroke, postoperative cognitive dysfunction, and delirium.
Burkhart, C. S., Czosnyka, M., Dell-Kuster, S., Gamberini, M., Möckli, A., Rossi, A., Siegemund, M., Steiner, L. A., Strebel, S. P.   +8 more
core  

Haemodynamic‐energetic mechanism of sudden cardiac death in severe aortic stenosis: A modelling study

The Journal of Physiology, EarlyView.
Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
wiley   +1 more source

Acute management of poor condition subarachnoid hemorrhage patients [PDF]

, 2012
Poor condition subarachnoid hemorrhage (SAH) patients present a high mortality and morbidity. In this study, we reviewed the acute interventional (surgical and endovascular) management of 109 SAH-poor condition patients, who were treated as early as ...
Archavlis, Eleftherios, Carvi y Nievas, Mario N.   +1 more
core  

Energetic microdomains and the vascular control of neuronal and muscle excitability: Toward a unified model

The Journal of Physiology, EarlyView.
Abstract figure legend The capillary–mitochondria–ion channel (CMIC) axis scales structural resources to match functional workload. (Left) In settings of restricted energetic capacity (e.g. cortical neurons), sparse capillary networks and modest mitochondrial pools set a lower energetic ceiling, sufficient to support phasic, low‐workload excitability. (
L. Fernando Santana, Scott Earley
wiley   +1 more source