Results 51 to 60 of about 89,312 (204)

Relationship of Heart Rate Variability to Parasympathetic Effect

, 2001
Background —Baroreflex-mediated parasympathetic stimulation has variable effects on heart rate variability (HRV). We postulated that a quadratic function would describe the relationship between HRV and parasympathetic effect better than a linear function.
Challapalli, Sridevi, Tung, Roderick, Goldberger, Jeffrey J, Parker, Michele A, Kadish, Alan H., Kadish, Alan H, Goldberger, Jeffrey J., Parker, Michele A.   +7 more
core   +1 more source

Parasympathetic stimuli on bronchial and cardiovascular systems in humans [PDF]

, 2015
BackgroundIt is not known whether parasympathetic outflow simultaneously acts on bronchial tone and cardiovascular system waxing and waning both systems in parallel, or, alternatively, whether the regulation is more dependent on local factors and ...
Emanuela Zannin (750311), Alessandro Di Toro (750312), Antonelli, Andrea, Alessandro Di Toro, Raffaele L. Dellacà (264101), Raffaele L Dellacà, Luciano Bernardi (298909), ZANNIN, EMANUELA, Emanuela Zannin, Di Toro, Alessandro, Andrea Antonelli, Pellegrino, Riccardo, Bernardi, Luciano, Luciano Bernardi, Riccardo Pellegrino (403185), Riccardo Pellegrino, DELLACA', RAFFAELE, Andrea Antonelli (403190)   +17 more
core   +1 more source

Tyrosine Hydroxylase-Expressing Neurons in the Vagal Ganglia: Characterization and Implications

Biomedicines
Background/Objectives: A combination of sympathoexcitation and parasympathetic withdrawal contributes to the occurrence of ventricular arrhythmias, sudden cardiac death, and progression of heart failure after myocardial injury.
Artin Khaky, Nicole Lee Yang, Valerie van Weperen, Shail Avasthi, Neil Jani, Marmar Vaseghi   +5 more
doaj   +1 more source

α-Lipoic Acid Reduces Hypertension and Increases Baroreflex Sensitivity in Renovascular Hypertensive Rats

Molecules, 2012
Renovascular hypertension has robust effects on control of blood pressure, including an impairment in baroreflex mechanisms, which involves oxidative stress.
Valdir A. Braga, Leônidas G. Mendes-Junior, Drielle D. Guimarães, Thyago M. Queiroz   +3 more
doaj   +1 more source

Parasympathetic cholinergic and neuropeptide mechanisms of migraine [PDF]

, 2017
© 2016, Iranian Society of Regional Anesthesia and Pain Medicine (ISRAPM).Context: Migraine mechanisms remain largely uncovered for various reasons including a very high complexity of the neurophysiological mechanisms implicated in this disorder and a ...
Mikhailov N., Mamontov O., Giniatullin R., Kamshilin A.   +3 more
core  

Parasympathetic Activity and Bronchial Hyperresponsiveness in Athletes [PDF]

, 2023
Bronchial hyperresponsiveness (BHR) is a term used to describe the bronchial constriction response to environmental stimuli. BHR is increasingly common in endurance athletes due to increased exposure to some stimuli.
Badza, Audrey
core  

Therapeutic potential of slow pranayama in anxiety

Journal of Family Medicine and Primary Care
Pranayama, yogic breathing techniques, are considered a form of meditation. In classical yoga, the breath is associated with prana; thus, pranayama is a means to control the inner force, the prana shakti or life energy.
Neena Sharma, Kamlesh Jha, Chandrakanta Munni   +2 more
doaj   +1 more source

Autonomic functions testing

RUDN Journal of Medicine
Relevance. The ubiquitous nature of the sympathetic and parasympathetic nervous system has allowed detailed tests in a variety of systems, including cardiovascular, gastrointestinal, urogenital, pupillary, sudomotor, and neuroendocrine.
Kapil Gupta, Ravi Saini, Naina Jangid
doaj   +1 more source

The Interaction Analysis between the Sympathetic and Parasympathetic Systems in CHF by Using Transfer Entropy Method

Entropy, 2018
Congestive heart failure (CHF) is a cardiovascular disease associated with autonomic dysfunction, where sympathovagal imbalance was reported in many studies using heart rate variability (HRV).
Daiyi Luo, Weifeng Pan, Yifan Li, Kaicheng Feng, Guanzheng Liu   +4 more
doaj   +1 more source

Correlation of Ventricular Arrhythmogenesis with Neuronal Remodeling of Cardiac Postganglionic Parasympathetic Neurons in the Late Stage of Heart Failure after Myocardial Infarction

Frontiers in Neuroscience, 2017
Introduction: Ventricular arrhythmia is a major cause of sudden cardiac death in patients with chronic heart failure (CHF). Our recent study demonstrates that N-type Ca2+ currents in intracardiac ganglionic neurons are reduced in the late stage of CHF ...
Dongze Zhang, Huiyin Tu, Chaojun Wang, Chaojun Wang, Liang Cao, Liang Cao, Robert L. Muelleman, Michael C. Wadman, Yu-Long Li, Yu-Long Li   +9 more
doaj   +1 more source