Results 151 to 160 of about 73,814 (293)
Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat
Experimental Physiology, EarlyView.Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli +13 more
wiley +1 more source
Cerebrovascular regulation during heat stress
Experimental Physiology, EarlyView.Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley +1 more source
The standard echocardiographic exam in small animals
, 2014 The echocardiographic examination usually starts with the two-dimensional technique (B-mode), also called real time echocardiography. The two-dimensional technique allows the evaluation of anatomy and spatial relationship of cardiac structures ...
PIANTEDOSI, DIEGO
core
Experimental Physiology, EarlyView.Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts +13 more
wiley +1 more source
Trans-esophageal echocardiography for tricuspid and pulmonary valves
Annals of Cardiac Anaesthesia, 2009 Transesophageal echocardiography has been shown to provide unique information about cardiac anatomy, function, hemodynamics and blood flow and is relatively easy to perform with a low risk of complications.
Prabhu Mahesh
doaj
Prediabetic cardiomyopathy is attenuated by hypothalamic PVN oxytocin neuron activation
The Journal of Physiology, EarlyView.Abstract figure legend A long‐term high‐fat, high‐fructose diet induces prediabetes with insulin resistance, hyperinsulinaemia, elevated triglycerides and metabolic‐associated steatotic liver disease (MASLD) in male rats. Animals developed prediabetic cardiomyopathy characterized by diastolic dysfunction, interstitial fibrosis and tachycardia ...
Anna Nilsson +7 more
wiley +1 more source
Acute intermittent hypercapnic hypoxia augments left ventricular contractility
The Journal of Physiology, EarlyView.Abstract figure legend Twenty‐four healthy adults were studied to determine the effects of an acute session of 40 min of intermittent hypercapnic hypoxia on cardiac performance. Cardiac function was assessed via echocardiography at rest and during graded stages of lower‐body negative pressure before and after the intervention to quantify load ...
Scott F. Thrall +8 more
wiley +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend This randomized cross‐over trial (N = 12) addressed the hypothesis that selective reduction of pulmonary arterial pressure (i.e. manipulation of pulmonary arterial mechanoreceptor activation) during hypoxic exercise would reduce sympathetic outflow (muscle sympathetic nerve activity (MSNA)) in healthy humans.
Michiel T. Ewalts +9 more
wiley +1 more source
Revealing the Hidden Severity: A Case Report on Managing Complex Aortic Stenosis With TAVI. [PDF]
Case Rep CardiolStefoulis T +4 more
europepmc +1 more source