Results 121 to 130 of about 93,314 (285)

Impaired Windkessel function and proximal aortic stiffness: Linking vascular ageing to cognitive decline

Experimental Physiology, EarlyView.
Abstract Central arterial stiffening, particularly of the proximal aorta, is increasingly recognised as a pivotal contributor to cardiovascular disease, dementia, and mild cognitive impairment. Loss of Windkessel function amplifies pulsatile pressure, reduces diastolic perfusion and accelerates microvascular damage in the brain.
Jun Sugawara, Hirofumi Tanaka
wiley   +1 more source

Intra-ventricular blood flow simulation with patient specific geometry [PDF]

, 2003
Firmin, DN, Kilner, PJ, Long, Q, Merrifield, R, Xu, XY, Yang, GZ   +5 more
core   +1 more source

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source

Altered sense of agency in schizophrenia: the aberrant effect of cardiac interoceptive signals

Frontiers in Psychiatry
BackgroundSchizophrenia (SZ) is characterized by abnormalities in self-representation, including a disturbed sense of agency (SoA). The continuous processing of sensory information concerning the internal state of the body (interoception) is argued to be
Akihiro Koreki, Akihiro Koreki, Akihiro Koreki, Yuri Terasawa, Atsuo Nuruki, Hiroki Oi, Hugo Critchley, Mahinda Yogarajah, Mitsumoto Onaya   +8 more
doaj   +1 more source

Cerebral blood flow regulation, central arterial stiffness and traumatic brain injury: Effects of aerobic exercise training

Experimental Physiology, EarlyView.
Abstract Advanced age is the strongest risk factor for Alzheimer's disease and related dementias (ADRDs). Traumatic brain injury (TBI) has also been recognized as a risk factor for ADRD, potentially contributing to an earlier onset of the disease. Thus, elucidating the mechanisms underlying brain ageing and TBI is critical for developing strategies to ...
Tsubasa Tomoto, Kan Ding, C. Munro Cullum, Rong Zhang   +3 more
wiley   +1 more source

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

Breijo Electrocardiographic Pattern

Archivo Médico de Camagüey, 2018
Background: the decrease in cardiac electrical systole (short intervals of PR and QTc in the same electrocardiogram, also known as "Breijo electrocardiographic pattern") is increasingly studied.
Francisco Ramón Breijo-Márquez
doaj  

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

Experimental Physiology, EarlyView.
Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu, Max Hagemann, Michelle Ottlik, Moritz Lampkemeyer, Eric J. Stöhr   +4 more
wiley   +1 more source

The isolated working guinea pig heart: A functional and electrophysiological characterisation

Experimental Physiology, EarlyView.
Abstract Small animal isolated perfused hearts have been used for over 150 years for the study of cardiac physiology and pharmacology. The guinea pig heart represents the smallest mammalian heart that replicates key features of the human heart – for example, with respect to cardiac action potential duration, ion channel expression, excitation ...
Grace C. Anderson‐Barker, Michael J Shattock   +1 more
wiley   +1 more source

Computational analysis to assess hemodynamic forces in descending thoracic aortic aneurysms

The Journal of Physiology, EarlyView.
Abstract figure legend Left: Pre‐processing. First, we perform the segmentation of the Computer Tomography angiorgraphy (angio‐CT) scans of a healthy patient, obtaining the surface of a healthy thoracic aorta with a Type III aortic arch. Then, we build nine ideal configurations with Descending Thoracic Aortic Aneurysm (DTAA), varying the aortic arch ...
Francesca Duca, Daniele Bissacco, Luca Crugnola, Chiara Faitini, Maurizio Domanin, Francesco Migliavacca, Santi Trimarchi, Christian Vergara   +7 more
wiley   +1 more source