Results 21 to 30 of about 189,091 (334)

Cervical transcutaneous vagal nerve stimulation (ctVNS) improves human cognitive performance under sleep deprivation stress

Communications Biology, 2021
Fatigue is a pervasive public health and safety issue. Common fatigue countermeasures include caffeine or other chemical stimulants. These can be effective in limited circumstances but other non-pharmacological fatigue countermeasures such as non ...
L. McIntire, R. McKinley, C. Goodyear, J. McIntire, Rebecca D. Brown   +4 more
semanticscholar   +1 more source

Comparative Effect of Vagal Stimulation on Heart Rate, Blood Pressure, and Skin Hydration at Different Anatomical Sites in Prehypertensive Individuals: A Pilot Study [PDF]

Journal of Clinical and Diagnostic Research, 2023
Introduction: Prehypertension is the precursor to high Blood Pressure (BP), which can lead to severe consequences such as cardiovascular disease, stroke, acute myocardial infarction, heart failure, peripheral arterial disease, and cerebrovascular ...
Monika Sharma, Maneesh Arora, Shagun Agrawal   +2 more
doaj   +1 more source

Organ- and function-specific anatomical organization of vagal fibers supports fascicular vagus nerve stimulation

Brain Stimulation, 2023
Vagal fibers travel inside fascicles and form branches to innervate organs and regulate organ functions. Existing vagus nerve stimulation (VNS) therapies activate vagal fibers non-selectively, often resulting in reduced efficacy and side effects from non-
Naveen Jayaprakash, Weiguo Song, Viktor Tóth, Avantika Vardhan, Todd J. Levy, Jacquelyn N. Tomaio, K. Qanud, Ibrahim T. Mughrabi, Yao-Chuan Chang, Moontahinaz Rob, Anna Daytz, Adam Abbas, Zeinab Nassrallah, B. Volpe, K. Tracey, Y. Al-Abed, Timir Datta-Chaudhuri, Larry S. Miller, M. Barbe, Sunhee C. Lee, Theodoros P. Zanos, Stavros Zanos   +21 more
semanticscholar   +1 more source

In-vivo application of low frequency alternating currents on porcine cervical vagus nerve evokes reversible nerve conduction block

Bioelectronic Medicine, 2021
Background This paper describes a method to reversibly block nerve conduction through direct application of a 1 Hz sinusoidal current waveform delivered through a bipolar nerve cuff electrode.
Maria Ivette Muzquiz, Lindsay Richardson, Christian Vetter, Macallister Smolik, Awadh Alhawwash, Adam Goodwill, Rizwan Bashirullah, Michael Carr, Ken Yoshida   +8 more
doaj   +1 more source

Cerebral Hemodynamic Correlates of Transcutaneous Auricular Vagal Nerve Stimulation in Consciousness Restoration: An Open-Label Pilot Study

Frontiers in Neurology, 2021
This study aimed to preliminarily illustrate the cerebral hemodynamic correlates of transcutaneous auricular vagal nerve stimulation (taVNS) in consciousness restoration. Arterial spin labeling (ASL) was adopted with functional magnetic resonance imaging
Yutian Yu, Yi Yang, Shuoqiu Gan, Shengnan Guo, J. Fang, Shouyan Wang, Chun-Lei Tang, L. Bai, Jianghong He, P. Rong   +9 more
semanticscholar   +1 more source

Transcutaneous vagus nerve stimulation does not affect verbal memory performance in healthy volunteers [PDF]

, 2020
Introduction: Invasive vagus nerve stimulation (VNS) improves word recognition memory in patients with epilepsy. Recent studies with transcutaneous VNS (tVNS) have also shown positive effects on various subdomains of cognitive functioning in healthy ...
Boon, Paul, Carrette, Evelien, Gadeyne, Stefanie, Mertens, Ann, Miatton, Marijke, Naert, Lien, Poppa, Tasha, Raedt, Robrecht, Vonck, Kristl   +8 more
core   +1 more source

Intraoperative nerve stimulation during vagal nerve stimulator placement

Surgical Neurology International, 2023
Background:Vagal nerve stimulation (VNS) is a palliative treatment for refractory epilepsy and intraoperative nerve stimulation is applied to the vagal and other nerves to prevent electrode misplacement. We evaluated these thresholds to establish intraoperative monitoring procedures for VNS surgery.Methods:Forty-six patients who underwent ...
Kamada, Chie, Enatsu, Rei, Kanno, Aya, Ochi, Satoko, Yamada, Shoto, Sato, Ryota, Chiba, Ryohei, Mikuni, Nobuhiro   +7 more
openaire   +2 more sources

Vagal Nerve Stimulation Protects Against Cerebral Ischemia–Reperfusion Injury in Rats by Inhibiting Autophagy and Apoptosis

Neuropsychiatric Disease and Treatment, 2021
Background Cumulative evidence suggests that neuronal death including autophagy, apoptosis, and necrosis is closely related to the occurrence and development of cerebral ischemia–reperfusion (I/R) injury.
Li-na Zhang, Xian-Wei Zhang, Chang-qing Li, Jing Guo, Yong-Ping Chen, Sheng-li Chen   +5 more
semanticscholar   +1 more source

Hypothalamically-Induced Insulin Release and its Potentiation During Oral and Intravenous Glucose Loads [PDF]

, 1984
Male Wistar rats were provided with bilateral cannulas in the lateral hypothalamic area (LHA) and cannulas in the left and right jugular vein. Freely moving rats provided in this way with cannulas were infused with transmitters in the LHA and with ...
A.B. Steffens, Bernstein, Berthoud, Berthoud, Bloom, Bloom, Daniel, De Groot, De Jong, E.C. Lotter, F. Kuipers, Frohman, Frohman, G. Flik, Henquin, Inoue, Iversen, Iversen, Kaneto, Kaneto, Kaneto, Kaneto, Karam, Matsushita, McCaleb, Moltz, P.G.M. Luiten, Robertson, Shimazu, Shimazu, Shimazu, Steffens, Steffens, Strubbe, Strubbe, Strubbe   +35 more
core   +8 more sources

Non-invasive stimulation of vagal afferents reduces gastric frequency

Brain Stimulation, 2020
Metabolic feedback between the gut and the brain relayed via the vagus nerve contributes to energy homeostasis. We investigated in healthy adults whether non-invasive stimulation of vagal afferents impacts energy homeostasis via efferent effects on ...
Vanessa Teckentrup, Sandra Neubert, João C.P. Santiago, Manfred Hallschmid, Martin Walter, Nils B. Kroemer   +5 more
doaj   +1 more source