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@ARTICLE{deOliveiraPires:281519,
author = {de Oliveira Pires, L. and Wasicki, B. and Abaei, A. and
Scekic-Zahirovic, J. and Roselli, F. and Fernandes, S. and
Bączyk, M.},
title = {{A} computational model of ts{DCS} effects in {SOD}1 mice:
from {MRI}-based design to validation.},
journal = {Computers in biology and medicine},
volume = {197},
number = {Pt B},
issn = {0010-4825},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {DZNE-2025-01137},
pages = {111082},
year = {2025},
abstract = {During trans-spinal direct current stimulation (tsDCS) the
transmembrane potential of neurons is modified by an
electric field (EF) induced due to externally applied direct
current (DC). The resultant functional effects are being
harnessed in the treatment of various neurological
conditions; however, the fundamental mechanisms of action
underlying tsDCS remain unclear. This ambiguity is largely
attributed to the limited knowledge of the geometrical
constraints of the EF in the polarized spinal regions. It
is, then, essential to develop tools that enable researchers
to plan tsDCS approaches in a controlled and systematic
manner, ensuring the reproducibility of stimulation effects
at spinal targets. With this paper, we aim to provide a
comprehensive computational model of tsDCS intervention in
mice to support further fundamental research in this area.
Our model was constructed using high-resolution MRI scans of
C57/B6 mice, which were segmented and reconstructed into a
realistic mouse computational model. In vivo
electrophysiological measurements of voltage gradients in
SOD1 G93A mice were used to validate our model predictions
in real-life scenarios. In both the modeling and in vivo
studies, we employed a rostrocaudal arrangement of DC
electrodes to replicate stimulation parameters that have
proven effective for modulating murine spinal circuits. Both
the computational and in vivo approaches yielded highly
consistent results, with EF parameters primarily influenced
by the distance between the target site and the tsDCS
electrodes. We conclude that this developed model offers
high accuracy in EF distribution and can significantly
substantiate basic research in tsDCS.},
keywords = {Animals / Mice / Magnetic Resonance Imaging / Superoxide
Dismutase-1: genetics / Superoxide Dismutase-1: metabolism /
Models, Neurological / Spinal Cord: diagnostic imaging /
Spinal Cord: physiology / Computer Simulation / Mice, Inbred
C57BL / Mice, Transgenic / Membrane Potentials: physiology /
Amyotrophic lateral sclerosis (Other) / In vivo
electrophysiology (Other) / MRI (Other) / Neuromodulation
(Other) / Spinal computational model (Other) / Superoxide
Dismutase-1 (NLM Chemicals) / Sod1 protein, mouse (NLM
Chemicals)},
cin = {AG Roselli},
ddc = {570},
cid = {I:(DE-2719)1910001},
pnm = {352 - Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40997459},
doi = {10.1016/j.compbiomed.2025.111082},
url = {https://pub.dzne.de/record/281519},
}