Results 21 to 30 of about 316,045 (308)

Acute Changes in Heart Rate Variability to Glucose and Fructose Supplementation in Healthy Individuals: A Double-Blind Randomized Crossover Placebo-Controlled Trial

open access: yesBiology, 2022
Background: It is unknown how different types of carbohydrates alter the cardio-autonomic system in healthy individuals. Therefore, the aim of this study was to investigate how heart-rate variability changes to single dose ingestion of glucose, fructose,
Max Lennart Eckstein   +11 more
doaj   +1 more source

Exercise intolerance and fatigue in chronic heart failure: is there a role for group III/IV afferent feedback? [PDF]

open access: yes, 2020
Exercise intolerance and early fatiguability are hallmark symptoms of chronic heart failure. While the malfunction of the heart is certainly the leading cause of chronic heart failure, the patho-physiological mechanisms of exercise intolerance in these ...
Angius, Luca, Crisafulli, Antonio
core   +2 more sources

Hemodynamic profiles of functional and dysfunctional forms of repetitive thinking [PDF]

open access: yes, 2016
Background: The ability of the human brain to escape the here and now (mind wandering) can take functional (problem solving) and dysfunctional (perseverative cognition) routes.
Brosschot, Jos F.   +5 more
core   +2 more sources

What every ICU clinician needs to know about the cardiovascular effects caused by abdominal hypertension [PDF]

open access: yes, 2015
The effects of increased intra-abdominal pressure (IAP) on cardiovascular function are well recognized and include a combined negative effect on preload, afterload and contractility.
De Keulenaer, Bart L   +2 more
core   +1 more source

Hemodynamic Changes in Hypophysectomized Rats [PDF]

open access: yesCirculation Research, 1959
The following changes were observed in hypophysectomized rats, 14 days after the operation: greatly reduced cardiac output, bradycardia, slight increase in total peripheral resistance, less work done by the left ventricle, low blood pressure, reduced respiratory rate and oxygen uptake, no change in blood volume and erythrocyte count.
openaire   +2 more sources

Three-dimensional echocardiography and 2D-3D speckle tracking imaging in chronic pulmonary hypertension. diagnostic accuracy in detecting hemodynamic signs of RV failure [PDF]

open access: yes, 2015
Background and objective. Our aim was to compare three-dimensional (3D) and 2D and 3D speckle tracking (2D-STE, 3D-STE) echocardiographic parameters with conventional right ventricular (RV) indexes in patients with chronic pulmonary hypertension (PH ...
Alessia, Azzano   +11 more
core   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

open access: yesAging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu   +8 more
wiley   +1 more source

Improvement of hemodynamic parameters in aortic stenosis patients with transcatheter valve replacement by using impedance cardiography

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundThe hemodynamic changes of patients with aortic stenosis (AS) who underwent transcatheter valve replacement (TAVR) have not been completely investigated.Methods and resultsWe enrolled 74 patients with AS who underwent TAVR and assessed cardiac ...
Luqing Wan   +6 more
doaj   +1 more source

Age-related changes in global motion coherence: conflicting haemodynamic and perceptual responses [PDF]

open access: yes, 2018
Our aim was to use both behavioural and neuroimaging data to identify indicators of perceptual decline in motion processing. We employed a global motion coherence task and functional Near Infrared Spectroscopy (fNIRS). Healthy adults (n = 72, 18-85) were
A Arena   +93 more
core   +4 more sources

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

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