Evidence map›Paper›PMID 31949429›Full record

ArticleNeural plasticity2019

Neuromodulatory Effects of Transcranial Direct Current Stimulation on Motor Excitability in Rats.

Hui-Hua Liu, Xiao-Kuo He, Hsin-Yung Chen, Chih-Wei Peng, Alexander Rotenberg, Chi-Hung Juan, Yu-Cheng Pei, Hao-Li Liu, Yung-Hsiao Chiang, Jia-Yi Wang and 3 more

Open access · goldAbstract read
In one paragraph

Article in Neural plasticity, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Repeated tDCS at Clinically Relevant Field Intensity Can Boost Concurrent Motor Learning in Rats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 8 institutions in 3 countries.

Hui-Hua LiuDepartment of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.ORCID 0000-0003-1956-2268
Xiao-Kuo HeSchool of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan.ORCID 0000-0002-2533-0124
Hsin-Yung ChenDepartment of Occupational Therapy and Institute of Behavioral Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.ORCID 0000-0002-5165-3840
Chih-Wei PengSchool of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan.ORCID 0000-0001-9744-4094
Alexander RotenbergDepartment of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
Chi-Hung JuanInstitute of Cognitive Neuroscience, National Central University, Taoyuan, Taiwan.
Yu-Cheng PeiDepartment of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Taoyuan, Taiwan.ORCID 0000-0001-5986-0046
Hao-Li LiuDepartment of Electrical Engineering, Chang Gung University, Taoyuan, Taiwan.
Yung-Hsiao ChiangDepartment of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan.ORCID 0000-0002-8426-4016
Jia-Yi WangGraduate Institute of Medical Sciences, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.ORCID 0000-0002-9106-3351
Xiao-Jun FengDepartment of Rehabilitation Medicine, The Second Hospital of Anhui Medical University and Anhui Medical University, Hefei, China.ORCID 0000-0002-0377-2730
Ying-Zu HuangDepartment of Neurology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taipei, Taiwan.ORCID 0000-0002-8666-4013
Tsung-Hsun HsiehSchool of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan.ORCID 0000-0002-1794-7941
Chang Gung University · TWSun Yat-sen University · CNTaipei Medical University · TWAnhui Medical University · CNBoston Children's Hospital · USChang Gung Memorial Hospital · TWNational Central University · TWTaipei Medical University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transcranial direct current stimulation (tDCS) is a noninvasive technique for modulating neural plasticity and is considered to have therapeutic potential in neurological disorders. For the purpose of translational neuroscience research, a suitable animal model can be ideal for providing a stable condition for identifying mechanisms that can help to explore therapeutic strategies. Here, we developed a tDCS protocol for modulating motor excitability in anesthetized rats. To examine the responses of tDCS-elicited plasticity, the motor evoked potential (MEP) and MEP input-output (IO) curve elicited by epidural motor cortical electrical stimulus were evaluated at baseline and after 30 min of anodal tDCS or cathodal tDCS. Furthermore, a paired-pulse cortical electrical stimulus was applied to assess changes in the inhibitory network by measuring long-interval intracortical inhibition (LICI) before and after tDCS. In the results, analogous to those observed in humans, the present study demonstrates long-term potentiation- (LTP-) and long-term depression- (LTD-) like plasticity can be induced by tDCS protocol in anesthetized rats. We found that the MEPs were significantly enhanced immediately after anodal tDCS at 0.1 mA and 0.8 mA and remained enhanced for 30 min. Similarly, MEPs were suppressed immediately after cathodal tDCS at 0.8 mA and lasted for 30 min. No effect was noted on the MEP magnitude under sham tDCS stimulation. Furthermore, the IO curve slope was elevated following anodal tDCS and presented a trend toward diminished slope after cathodal tDCS. No significant differences in the LICI ratio of pre- to post-tDCS were observed. These results indicated that developed tDCS schemes can produce consistent, rapid, and controllable electrophysiological changes in corticomotor excitability in rats. This newly developed tDCS animal model could be useful to further explore mechanical insights and may serve as a translational platform bridging human and animal studies, establishing new therapeutic strategies for neurological disorders.

Indexed as

AnimalsElectrodes, ImplantedEvoked Potentials, MotorMaleMotor CortexNeuronal PlasticityRatsRats, Sprague-DawleyTranscranial Direct Current Stimulation

Identifiers

PMID31949429
PMCPMC6942908
OpenAlexW2996666137

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.