Ultrasound Stimulations Induce Prolonged Depolarization and Fast Action Potentials in Leech Neurons.

Autor: Dedola F; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Severino FPU; 2 Neuroscience AreaInternational School for Advanced Studies Trietse 341356 Italy., Meneghetti N; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Lemaire T; 3 Bertarelli Foundation Chair in Translational NeuroEngineering, Center for Neuroprosthetics and Institute of BioengineeringSchool of Engineering, Ecole Polytechnique Federale de Lausanne Lausanne 1015 Switzerland., Cafarelli A; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Ricotti L; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Menciassi A; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Cutrone A; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Mazzoni A; 1 The Biorobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy., Micera S; 4 BioRobotics InstituteScuola Superiore Sant'Anna Pisa 56025 Italy.; Department of Excellence in Robotics and AIScuola Superiore Sant'Anna Pisa 56025 Italy.; Bertarelli Foundation Chair in Translational NeuroEngineering, Center for Neuroprosthetics and Institute of BioengineeringSchool of Engineering, Ecole Polytechnique Federale de Lausanne Lausanne 1015 Switzerland.
Jazyk: angličtina
Zdroj: IEEE open journal of engineering in medicine and biology [IEEE Open J Eng Med Biol] 2020 Feb 14; Vol. 1, pp. 23-32. Date of Electronic Publication: 2020 Feb 14 (Print Publication: 2020).
DOI: 10.1109/OJEMB.2019.2963474
Abstrakt: Objective: Ultrasound (US) stimulation carries the promise of a selective, reversible, and non-invasive modulation of neural activity without the need for genetic manipulation of neural structures. However, the mechanisms of US-induced generation of action potentials (APs) are still unclear. Methods: Here we address this issue by analyzing intracellularly recorded responses of leech nociceptive neurons to controlled delivery of US. Results: US induced a depolarization linearly accumulating in time and outlasting the duration of the stimulation. Spiking activity was reliably induced for an optimal US intensity range. Moreover, we found that APs induced by US differ in smaller amplitude and faster repolarization from those induced by electrical stimulation in the same cell but display the same repolarization rate. Conclusions: These results shed light on the mechanism by which spikes are induced by US and pave the way for designing more efficient US stimulation patterns.
Databáze: MEDLINE