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Non-invasive stimulation of vagal afferents reduces gastric frequency.
Brain Stimul. 13, 470-473 (2020)
Verlagsversion
Forschungsdaten
DOI
PMC
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 metabolism or digestion. In a randomized crossover design, we applied transcutaneous auricular vagus nerve stimulation (taVNS) while recording efferent metabolic effects using simultaneous electrogastrography (EGG) and indirect calorimetry. We found that taVNS reduced gastric myoelectric frequency (p = .008), but did not alter resting energy expenditure. We conclude that stimulating vagal afferents induces gastric slowing via vagal efferents without acutely affecting net energy expenditure at rest. Collectively, this highlights the potential of taVNS to modulate digestion by activating the dorsal vagal complex. Thus, taVNS-induced changes in gastric frequency are an important peripheral marker of brain stimulation effects.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Transcutaneous Auricular Vagus Nerve Stimulation ; Tavns ; Electrogastrogram ; Resting Energy Expenditure ; Energy Homeostasis; Vagus Nerve-stimulation; Brain-stem; Dopamine; Vagotomy
ISSN (print) / ISBN
1935-861X
e-ISSN
1876-4754
Zeitschrift
Brain stimulation
Quellenangaben
Band: 13,
Heft: 2,
Seiten: 470-473
Verlag
Elsevier
Verlagsort
New York, NY
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed