Results 141 to 150 of about 551,373 (269)

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

Research progress of cerebroplacental ratio in obstetric complications. [PDF]

Front Med (Lausanne)
Bi X, Qi R, Chen H.
europepmc   +1 more source

ARISE framework: a temporal, multi-organ view of perfusion in sepsis. [PDF]

Intern Emerg Med
Liu J, Zhao H, Liu D, Wang X.
europepmc   +1 more source

Mechanical pressure on endothelial cells mediates remote ischaemic preconditioning‐induced neuroprotection via miR‐126

Experimental Physiology, EarlyView.
Abstract Remote ischaemic preconditioning (RIPC) uses brief limb ischaemia to protect distant organs, but the mechanism of travel of the protective signal remains unclear. This study investigated whether endothelial cells (ECs) contribute to RIPC‐induced neuroprotection and the underlying mechanisms.
Xiaojie Wang, Lei Yan, Hongwei Zhu, Yifan Li, Qi Liu, Wei Li, Kerui Gong, Zhijun Zhao, Chunyang Zhang, Gang Fu, Guo Shao, Xunming Ji   +11 more
wiley   +1 more source

Cerebral hemodynamic changes in neonates with different types of patent ductus arteriosus: a study using transcranial Doppler ultrasound. [PDF]

BMC Pediatr
Liu JF, Wang ZC, Sun KP, Luo K, Guo S.
europepmc   +1 more source

Imaging of cerebral hemodynamics with arterial spin labeling

, 2014
A knowledge of the cerebral circulation is of great importance in the understanding cerebrovascular disease. The ability to visualize the brain vasculature has become key in the diagnosis and treatment of cerebrovascular disease.
Hartkamp, N.S., Brain, Radiologie, Mali, WPTM, Bokkers, Reinoud, Hendrikse, Jeroen, Circulatory Health   +6 more
core  

Brain tissue pulsation responses to a low‐level expiratory resistance manoeuvre: A pilot healthy volunteer study

Experimental Physiology, EarlyView.
Abstract Pulsatility of the brain has been hypothesised to be linked to intracranial pressure (ICP), although the nature of this relationship remains poorly understood. We used a low‐level expiratory resistance manoeuvre to characterise brain tissue pulsation (BTP) responses in a pilot healthy volunteer study.
Jennifer K. Nicholls, Emma M. L. Chung, Jonathan Ince, Edward Pallett, Jatinder S. Minhas, Andrea Lecchini‐Visintini   +5 more
wiley   +1 more source

Role of α-adrenergic activation during the hemodynamic response to maternal hyperoxygenation in fetal sheep†. [PDF]

Biol Reprod
Minns JA, Darby JRT, Cho SKS, Saini BS, Holman SL, Macgowan CK, Seed M, Morrison JL.   +7 more
europepmc   +1 more source

Thermo‐tone: A newly revealed mechanism of blood flow regulation

Experimental Physiology, EarlyView.
Abstract Myogenic tone enables dynamic control of tissue blood flow. This intrinsic property of vascular smooth muscle cells to sense stretch and reflexively adjust the calibre of small arteries is crucial to maintain capillary pressure and a blood flow reserve. For over 120 years blood pressure was considered the sole determinant of myogenic tone. Our
Thieu X. Phan, Gerard P. Ahern
wiley   +1 more source

Venous dominance and systemic hemodynamic divergence in a coupled craniopagus circulation. [PDF]

Brain Spine
Giussani C, Carrabba G, Rivolta I, Lober R, Remida P, Mazzoleni F, Gordon C, Marchesi A, Patel A, Moretto A, Ramponi A, Trezza A, Citerio G.   +12 more
europepmc   +1 more source