Results 31 to 40 of about 157,618 (200)

Different types of potassium transport linked to carbachol and γ-aminobutyric acid actions in rat sympathetic neurons [PDF]

open access: yes, 1984
Carbachol and γ-aminobutyric acid depolarize mammalian sympathetic neurons and increase the free extracellular K+-concentration. We have used double-barrelled ion-sensitive microelectrodes to determine changes of the membrane potential and of the free ...
Ballanyi, Klaus   +3 more
core   +1 more source

Baroreflex Modulation During Acute High-Altitude Exposure in Rats

open access: yesFrontiers in Physiology, 2020
Baroreflex (BR) control is critically dependent of sympathetic and parasympathetic modulation. It has been documented that during acute hypobaric hypoxia there is a BR control impairment, however, the effect of a natural hypoxic environment on BR ...
Ana Rosa Beltrán   +13 more
doaj   +1 more source

Autonomic innervation of the cardio-vascular system in normal tension glaucoma patients

open access: yesOftalʹmologiâ, 2014
Purpose: to determine whether there is any difference in autonomic innervation of the cardio-vascular system in normal tension glaucoma (NtG) patients and primary open angle glaucoma (POAG) patients.Methods: 30 NtG patients, 30 POAG patients and 22 ...
N. I. Kurysheva   +5 more
doaj   +3 more sources

Cardiovascular autonomous dysfunction in diabetics: The influence of disease duration, glycoregulation degree and diabetes type [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2008
INTRODUCTION Cardiovascular autonomous neuropathy (CAN) in diabetes has not been still defined clinically and aetiopathogenetically. OBJECTIVE The aim of this study was to determine the influence of disease duration, glycoregulation degree and diabetes ...
Ninković Vladan   +2 more
doaj   +1 more source

Sympathetic Nervous System Mediates Cardiac Remodeling After Myocardial Infarction in a Circadian Disruption Model

open access: yesFrontiers in Cardiovascular Medicine, 2021
Background: Circadian rhythms have a considerable impact on the daily physiology of the heart, and their disruption causes pathology. Several studies have revealed that circadian disruption impaired cardiac remodeling after myocardial infarction (MI ...
Yuhong Wang   +40 more
doaj   +1 more source

I.—THE SYMPATHETIC NERVOUS SYSTEM [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1875
n ...
openaire   +1 more source

The autonomic nervous system in atrial fibrillation—pathophysiology and non-invasive assessment

open access: yesFrontiers in Cardiovascular Medicine
The autonomic nervous system plays a crucial role in atrial fibrillation pathophysiology. Parasympathetic hyperactivity result in a shortening of the action potential duration, a reduction of the conduction wavelength, and as such facilitates reentry in ...
Bert Vandenberk   +4 more
doaj   +1 more source

Single and combined effects of sympathetic and parasympathetic activity on perceptual sensitivity and attention [PDF]

open access: yes, 1999
Pulse rate and cephalic pulse volume were recorded from 17 male and 37 female normal subjects during performance of an attentional task under high and low stress conditions.
David Shapiro   +3 more
core   +1 more source

Sympathetic Nervous System Activation and Its Modulation: Role in Atrial Fibrillation

open access: yesFrontiers in Neuroscience, 2019
The autonomic nervous system (ANS) has a significant influence on the structural integrity and electrical conductivity of the atria. Aberrant activation of the sympathetic nervous system can induce heterogeneous changes with arrhythmogenic potential ...
Revathy Carnagarin   +6 more
doaj   +1 more source

Sympathetic Nervous System Activity in Preschoolers Who Stutter

open access: yesFrontiers in Human Neuroscience, 2019
BackgroundIn our Dynamic Pathways, account, we hypothesized that childhood stuttering reflects an impairment in speech sensorimotor control that is conditioned by cognitive, linguistic, and emotional factors.
Bridget Walsh   +3 more
doaj   +1 more source

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