yang, xiao chaney, jacob david, aaron s. fang, fang
Background: Cardiovascular disease (CVD) is the leading cause of mortality and disability worldwide. While sex differences in CVD have been well documented, the physiological mechanisms of those sex differences remain unclear. As important components of the cardiovascular system, cardiac vagal control and baroreflex serve as mechanisms of sex diffe...
Karemaker, John M.
Published in
Frontiers in Neuroscience
During an ECG-training course, a case of extreme respiratory sinus arrhythmia (RSA) was found in a 19-year-old slender, female student who was not active in sports. The heart rate (HR) fluctuated from above 100 to below 60 beats per minute (bpm), often from one beat to the next. The pattern was repetitive and appeared to be linked to respiration, r...
Adeniyi, Mayowa Jeremiah Fabunmi, Oyesanmi A. Awosika, Ayoola
Published in
Exploration of Medicine
Harmattan is a season characterized by dust, cold, and sub-humid trade winds in Sub-Saharan countries. It’s similar to meteorological phenomena like Asian dust storms, Santa Ana winds, Australian bushfires, and Saharan dust in the Caribbean. It causes profound changes in the cardiorespiratory system in apparently healthy individuals and increases t...
fortrat, jacques-olivier
Self-organized criticality is a universal theory for dynamical systems that has recently been applied to the cardiovascular system. Precise methodological approaches are essential for understanding the dynamics of cardiovascular self-organized criticality. This study examines how the duration and quality of data recording affect the analysis of car...
Alvarez-Araos, Pablo Jiménez, Sergio Salazar-Ardiles, Camila Núñez-Espinosa, Cristian Paez, Valeria Rodriguez-Fernandez, Maria Raberin, Antoine Millet, Gregoire P. Iturriaga, Rodrigo Andrade, David C.
...
Published in
Frontiers in Physiology
The hypoxic chemoreflex and the arterial baroreflex are implicated in the ventilatory response to exercise. It is well known that long-term exercise training increases parasympathetic and decreases sympathetic tone, both processes influenced by the arterial baroreflex and hypoxic chemoreflex function. Hypobaric hypoxia (i.e., high altitude [HA]) ma...
Regan, Christopher P Morissette, Pierre Kraus, Richard L Wang, Erjia Arrington, Leticia Vavrek, Marissa de Hoon, Jan Depre, Marleen Lodeweyck, Thomas Demeyer, Ignace
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Published in
Circulation
Regan, Christopher P.; Morissette, Pierre; Kraus, Richard L.; Wang, Erjia; Arrington, Leticia; Vavrek, Marissa; de Hoon, Jan; Depre, Marleen; Lodeweyck, Thomas; Demeyer, Ignace;
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status: published
Takeda, Ryosuke Hissen, Sarah L Akins, John D Washio, Takuro Hearon, Christopher M Jr MacNamara, James P Sarma, Satyam Levine, Benjamin D Fadel, Paul J Fu, Qi
...
Published in
Hypertension (Dallas, Tex. : 1979)
We tested the hypothesis that patients with heart failure with preserved ejection fraction (HFpEF) would have greater muscle sympathetic nerve activity (MSNA) at rest and sympathetic reactivity during a cold pressor test compared with non-heart failure controls. Further, given the importance of the baroreflex modulation of MSNA in the control of bl...
Alpenglow, Jeremy K Bunsawat, Kanokwan Francisco, Michael A Craig, Jesse C Iacovelli, Jarred J Ryan, John J Wray, D Walter
Published in
Journal of applied physiology (Bethesda, Md. : 1985)
Heart failure with preserved ejection fraction (HFpEF) is associated with autonomic dysregulation, which may be related to baroreflex dysfunction. Thus, we tested the hypothesis that cardiac and peripheral vascular responses to baroreflex activation via lower-body negative pressure (LBNP; -10, -20, -30, -40 mmHg) would be diminished in patients wit...
Baumer-Harrison, Caitlin Elsaafien, Khalid Johnson, Dominique N. Peñaloza Aponte, Jesus D. de Araujo, Alan Patel, Sagar Bruce, Erin B. Harden, Scott W. Frazier, Charles J. Scott, Karen A.
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Published in
The Journal of Neuroscience
Cardiovascular homeostasis is maintained, in part, by neural signals arising from arterial baroreceptors that apprise the brain of blood volume and pressure. Here, we test whether neurons within the nodose ganglia that express angiotensin type-1a receptors (referred to as NGAT1aR) serve as baroreceptors that differentially influence blood pressure ...
