Nerve Stimulation
Vagus nerve stimulation (VNS) engages the body’s own cholinergic anti-inflammatory pathway — the brain-body signaling carried by the vagus nerve — to dampen excessive inflammation. The Frasch Lab studies how VNS can be used to combat sepsis and to restore immunometabolic balance, from the fetus and neonate through to adult bioelectronic medicine, with a focus on non-invasive monitoring and control of the inflammatory response.
Featured Book
Vagus Nerve Stimulation (Neuromethods, vol. 205)
Edited by Martin G. Frasch & Eric C. Porges. Springer, 2024. A comprehensive methods volume covering invasive and non-invasive VNS from neonate to adult — study design, stimulation parameters, and heart rate variability metrics; mechanisms of action including autonomic regulation and immune plasticity; and therapeutic applications across inflammation, mood and trauma-related disorders, migraine, and language learning.
Key Reviews
- A review on the vagus nerve and autonomic nervous system during fetal development: searching for critical windows — Cerritelli, Frasch et al., Frontiers in Neuroscience, 2021
- Vagus nerve stimulation for treatment of inflammation: systematic review of animal models and clinical studies — Kwan, Garzoni, … Frasch, Bioelectronic Medicine, 2016
From the Frasch Lab
- Neonatal sepsis is diminished by cervical vagus nerve stimulation and tracked non-invasively by ECG — Castel et al., in Vagus Nerve Stimulation (Neuromethods 205), 2024 (preprint)
- Vagus nerve manipulation and microglial plasticity in the prenatal brain — Courchesne et al., in Vagus Nerve Stimulation (Neuromethods 205), 2024
- Microglial and macrophage plasticity and regional cerebral blood flow in the prenatal brain and gut under vagus nerve stimulation — Wakefield et al., Methods in Molecular Biology, 2025
- The vagus nerve regulates immunometabolic homeostasis in the ovine fetus near term: the impact on terminal ileum — Cao et al., Biology, 2024
- Recording and manipulation of vagus nerve electrical activity in chronically instrumented unanesthetized near-term fetal sheep — Castel et al., Journal of Neuroscience Methods, 2021