Evidence map›Paper›PMID 34987572›Full record

ArticleNeural plasticity2021

Early Repetitive Transcranial Magnetic Stimulation Exerts Neuroprotective Effects and Improves Motor Functions in Hemiparkinsonian Rats.

Tsung-Hsun Hsieh, Xiao-Kuo He, Hui-Hua Liu, Jia-Jin J Chen, Chih-Wei Peng, Hao-Li Liu, Alexander Rotenberg, Ko-Ting Chen, Ming-Yuan Chang, Yung-Hsiao Chiang and 2 more

Open access · goldAbstract read
In one paragraph

Article in Neural plasticity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 29% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Neuroprotection and Non-Invasive Brain Stimulation: Facts or Fiction?International journal of molecular sciences · 2022
    Review
  10. Article
  11. Article
  12. Article
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

12 authors at 8 institutions in 3 countries.

Tsung-Hsun HsiehSchool of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan.ORCID 0000-0002-1794-7941
Xiao-Kuo HeDepartment of Rehabilitation Medicine, Fifth Hospital of Xiamen, Xiamen, China.ORCID 0000-0002-2533-0124
Hui-Hua LiuDepartment of Rehabilitation Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.ORCID 0000-0003-1956-2268
Jia-Jin J ChenDepartment of Biomedical Engineering, College of Engineering, National Cheng Kung University, Tainan, Taiwan.ORCID 0000-0003-2751-5066
Chih-Wei PengSchool of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan.ORCID 0000-0001-9744-4094
Hao-Li LiuDepartment of Electrical Engineering, National Taiwan University, Taipei, Taiwan.ORCID 0000-0003-3512-7215
Alexander RotenbergDepartment of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.ORCID 0000-0002-6495-5928
Ko-Ting ChenDepartment of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan.ORCID 0000-0002-6795-5974
Ming-Yuan ChangDivision of Neurosurgery, Department of Surgery, Min-Sheng General Hospital, Taiwan.
Yung-Hsiao ChiangDepartment of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.ORCID 0000-0002-8426-4016
Pi-Kai ChangSchool of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan.ORCID 0000-0002-9308-5298
Chi-Wei KuoSchool of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan.ORCID 0000-0002-9245-635X
Chang Gung University · TWSun Yat-sen University · CNTaipei Medical University · TWBoston Children's Hospital · USFifth Hospital of Shijiazhuang · CNLinkou Chang Gung Memorial Hospital · TWMin Sheng General Hospital · TWNational Cheng Kung University · TW

Funding

Genetic Analysis and Manipulation Core (GAEC)P50HD105351 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI Hisashi Umemori · 2021 to 2026
$9.4M
NICHD NIH HHS P50 HD105351
6 · The paper itself

Abstract

Repetitive transcranial magnetic stimulation (rTMS) is a popular noninvasive technique for modulating motor cortical plasticity and has therapeutic potential for the treatment of Parkinson's disease (PD). However, the therapeutic benefits and related mechanisms of rTMS in PD are still uncertain. Accordingly, preclinical animal research is helpful for enabling translational research to explore an effective therapeutic strategy and for better understanding the underlying mechanisms. Therefore, the current study was designed to identify the therapeutic effects of rTMS on hemiparkinsonian rats. A hemiparkinsonian rat model, induced by unilateral injection of 6-hydroxydopamine (6-OHDA), was applied to evaluate the therapeutic potential of rTMS in motor functions and neuroprotective effect of dopaminergic neurons. Following early and long-term rTMS intervention with an intermittent theta burst stimulation (iTBS) paradigm (starting 24 h post-6-OHDA lesion, 1 session/day, 7 days/week, for a total of 4 weeks) in awake hemiparkinsonian rats, the effects of rTMS on the performance in detailed functional behavioral tests, including video-based gait analysis, the bar test for akinesia, apomorphine-induced rotational analysis, and tests of the degeneration level of dopaminergic neurons, were identified. We found that four weeks of rTMS intervention significantly reduced the aggravation of PD-related symptoms post-6-OHDA lesion. Immunohistochemically, the results showed that tyrosine hydroxylase- (TH-) positive neurons in the substantia nigra pars compacta (SNpc) and fibers in the striatum were significantly preserved in the rTMS treatment group. These findings suggest that early and long-term rTMS with the iTBS paradigm exerts neuroprotective effects and mitigates motor impairments in a hemiparkinsonian rat model. These results further highlight the potential therapeutic effects of rTMS and confirm that long-term rTMS treatment might have clinical relevance and usefulness as an additional treatment approach in individuals with PD.

Indexed as

AnimalsCorpus StriatumDisease Models, AnimalDopaminergic NeuronsGaitMaleMotor CortexMotor SkillsNeuroprotectionOxidopamineParkinson Disease, SecondaryRatsRats, WistarTranscranial Magnetic StimulationTyrosine 3-MonooxygenaseOxidopamineTyrosine 3-Monooxygenase

Identifiers

PMID34987572
PMCPMC8723880
OpenAlexW4200561234

What OpenQuestion holds

Textmetadata
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.