Results 51 to 60 of about 1,788,349 (198)

Positive End-Expiratory Pressure may alter breathing cardiovascular variability and baroreflex gain in mechanically ventilated patients

Respiratory Research, 2010
Background Baroreflex allows to reduce sudden rises or falls of arterial pressure through parallel RR interval fluctuations induced by autonomic nervous system.
Papelier Yves, Médigue Claire, Van de Louw Andry, Cottin François   +3 more
doaj   +1 more source

Cerebral blood flow links insulin resistance and baroreflex sensitivity.

, 2018
Insulin resistance confers risk for diabetes mellitus and associates with a reduced capacity of the arterial baroreflex to regulate blood pressure.
Lei K. Sheu (497891), Ikechukwu C. Onyewuenyi (497892), Timothy Verstynen (3894946), John P. Ryan (346921), Peter J. Gianaros (414467)   +4 more
core   +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

Baroreflex Sensitivity Measured by Pulse Photoplethysmography

Frontiers in Neuroscience, 2019
Novel methods for assessing baroreflex sensitivity (BRS) using only pulse photoplethysmography (PPG) signals are presented. Proposed methods were evaluated with a data set containing electrocardiogram (ECG), blood pressure (BP), and PPG signals from 17 ...
Jesús Lázaro, Jesús Lázaro, Jesús Lázaro, Eduardo Gil, Eduardo Gil, Michele Orini, Pablo Laguna, Pablo Laguna, Raquel Bailón, Raquel Bailón   +9 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

Autonomic Predictors of Hospitalization Due to Heart Failure Decompensation in Patients with Left Ventricular Systolic Dysfunction. [PDF]

PLoS ONE, 2016
INTRODUCTION:Autonomic nervous system balance can be significantly deteriorated during heart failure exacerbation. However, it is still unknown whether these changes are only the consequence of heart failure decompensation or can also predict development
Ludmiła Daniłowicz-Szymanowicz, Justyna Suchecka, Agnieszka Niemirycz-Makurat, Katarzyna Rozwadowska, Grzegorz Raczak   +4 more
doaj   +1 more source

The variability of baroreflex sensitivity in juvenile, spontaneously hypertensive rats

, 2011
In this study the baroreflex sensitivity of conscious, juvenile, spontaneously hypertensive rats (SHRs) was compared. The study population consisted of 19 eight-week-old male SHRs.
V.E. Valenti, Sato, Monica Akemi [UNIFESP], FERREIRA, C., Ferreira, C. [UNIFESP], C. Ferreira, VALENTI, V. E., E. Colombari, M.A. Sato, SATO, M. A., Valenti, V. E. [UNIFESP], L.C. De Abreu, COLOMBARI, E., ABREU, L. C. de   +12 more
core   +1 more source

Lifestyle modification in atrial fibrillation: Mechanisms, phenotypes and ablation outcomes

Experimental Physiology, EarlyView.
Abstract Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia and is associated with significant morbidity, mortality and healthcare utilization. Catheter ablation is increasingly used as a rhythm‐control intervention for patients with symptomatic paroxysmal and persistent AF, yet recurrence rates remain suboptimal.
Konstantinos Grigoriou, Paschalis Karakasis, Panagiotis Theofilis, Konstantinos Pamporis, Panayotis K. Vlachakis, Anastasios Apostolos, Nikolaos Ktenopoulos, Barbara Fyntanidou, Efstratios Karagiannidis, Dimitrios Patoulias, Antonios P Antoniadis, Nikolaos Fragakis   +11 more
wiley   +1 more source

Baroreflex sensitivity in obese and non obese individuals

, 2008
Obesity is a major public health problem. It represents an independent risk factor for cardiovascular morbidity and mortality. Obesity is characterised by sympathetic nervous system overactivity.
Σκράπαρη, Ιωάννα, Skrapari, Ioanna   +1 more
core   +1 more source

Effects of reducing sedentary behaviour on heart rate variability and cardio‐metabolic biomarkers in desk workers with untreated high blood pressure

Experimental Physiology, EarlyView.
Abstract Lower sedentary behaviour (SB) has been associated with reduced cardiovascular disease and mortality. Yet, few trials have evaluated cardiovascular mechanisms of benefit. We examined the effects of a SB reduction intervention on heart rate variability (HRV) and cardio‐metabolic biomarkers.
Abdullah Bandar Alansare, Matthew F. Muldoon, Subashan Perera, Kimberly A. Huber, Molly B. Conroy, John M. Jakicic, Bethany Barone Gibbs   +6 more
wiley   +1 more source