Results 21 to 30 of about 23,312 (152)

Effect of Parkinson’s Disease on Cardio-postural Coupling During Orthostatic Challenge

open access: yesFrontiers in Physiology, 2022
Cardiac baroreflex and leg muscles activation are two important mechanisms for blood pressure regulation, failure of which could result in syncope and falls.
Rabie Fadil   +8 more
doaj   +1 more source

Effects of transient change in carotid arterial stiffness on arterial baroreflex during mild orthostatic stimulation

open access: yesArtery Research, 2012
Stiffening of central conduit arteries –areas where the mechanoreceptors are embedded (e.g., ascending aorta and carotid artery) – is considered to be associated with the impaired baroreflex control in response to hypotensive stress.
Jun Sugawara   +5 more
doaj   +1 more source

Effect of salt loading on baroreflex sensitivity in reduced renal mass hypertension

open access: yesClinical and Experimental Hypertension, 2017
Background: High dietary salt, as well as renal mass reduction, is known to decrease baroreflex sensitivity in rats. However, the effect of high salt intake on baroreflex sensitivity is unknown in reduced renal mass (RRM) hypertension; therefore, the aim
Besim Özaykan   +2 more
doaj   +1 more source

A delay recruitment model of the cardiovascular control system. [PDF]

open access: yes, 2005
We develop a nonlinear delay-differential equation for the human cardiovascular control system, and use it to explore blood pressure and heart rate variability under short-term baroreflex control. The model incorporates an intrinsically stable heart rate
McGuinness, M. J.   +3 more
core   +1 more source

Intermittent Fasting After Spinal Cord Injury Does Not Improve the Recovery of Baroreflex Regulation in the Rat

open access: yesFrontiers in Physiology, 2020
Modest recovery of somatic function after incomplete spinal cord injury (SCI) has been widely demonstrated. Recently we have shown that spontaneous recovery of baroreflex regulation of sympathetic activity also occurs in rats.
Matthew R. Zahner, Eric Beaumont
doaj   +1 more source

Shifts in the baroreflex control of sympathetic nerve activity induced by exercise

open access: yesJournal of Physical Fitness and Sports Medicine, 2013
Exercise causes parallel increases in systemic arterial pressure (AP), heart rate (HR) and renal sympathetic nerve activity (RSNA). This review focused on the potential role of the acute shift in the baroreflex control of RSNA in both increasing and ...
Kenju Miki, Misa Yoshimoto
doaj   +1 more source

Postoperative Stroke after Spinal Anesthesia and Responses of Carotid or Cerebral Blood Flow and Baroreflex Functionality to Spinal Bupivacaine in Rats

open access: yesBiology, 2021
Spinal anesthesia is generally accepted as an effective and safe practice. Three rare incidents of postoperative cerebral infarction after surgery under spinal anesthesia prompted us to assess whether spinal bupivacaine may compromise carotid or cerebral
Yan-Yuen Poon   +4 more
doaj   +1 more source

Baroreflex impairment and morbidity after major surgery [PDF]

open access: yes, 2016
Background Baroreflex dysfunction is a common feature of established cardiometabolic diseases that are most frequently associated with the development of critical illness.
Toner, A   +7 more
core   +1 more source

Angiotensin II-superoxide-NFκB Signaling and Aortic Baroreceptor Dysfunction in Chronic Heart Failure

open access: yesFrontiers in Neuroscience, 2015
Chronic heart failure (CHF) affects approximately 5.7 million people in the United States. Increasing evidence from both clinical and experimental studies indicates that the sensitivity of arterial baroreflex is blunted in the CHF state, which is a ...
Dongze eZhang   +2 more
doaj   +1 more source

Physiological and pathophysiological evaluation of baroreflex functionality with concurrent diffusion tensor imaging of its neural circuit in the rat

open access: yesBiomedical Journal, 2019
Background: By measuring the prevalence of neuronal traffic between two brain structures based on the notion that diffusion of water molecules along the axon in parallel bundles will create prominent anisotropy in the direction of the passage of action ...
Ching-Yi Tsai   +5 more
doaj   +1 more source

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