Evidence map›Paper›PMID 33276724›Full record

ArticleThe journal of headache and pain2020

Metabotropic glutamate receptor 5 regulates synaptic plasticity in a chronic migraine rat model through the PKC/NR2B signal.

Yingying Niu, Xiaoxu Zeng, Lilin Zhao, Yang Zhou, Guangcheng Qin, Dunke Zhang, Qingqing Fu, Jiying Zhou, Lixue Chen

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Sirtuins Contribute to the Migraine-Stroke Connection.International journal of molecular sciences · 2025
    Review
  6. Glutamate as a Therapeutic Substrate in Migraine.International journal of molecular sciences · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Examining sex differences in responses to footshock stress and the role of the metabotropic glutamate receptor 5: an [Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  17. Article
  18. Review
  19. Article
  20. 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

9 authors at 1 institution in 1 country.

Yingying NiuLaboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Xiaoxu ZengLaboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Lilin ZhaoDepartment of Stomatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Yang ZhouDepartment of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Guangcheng QinLaboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Dunke ZhangLaboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Qingqing FuLaboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Jiying ZhouDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Lixue ChenLaboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. chenlixue@hospital.cqmu.edu.cn.ORCID http://orcid.org/0000-0001-8213-8828
The Affiliated Yongchuan Hospital of Chongqing Medical University · CN

Funding

National Natural Science Foundation of China 81671093
6 · The paper itself

Abstract

backgroundThe mechanism of chronic migraine (CM) is complex, central sensitization is considered as one of the pathological mechanism. Synaptic plasticity is the basis of central sensitization. Metabotropic glutamate receptor 5 (mGluR5) plays a vital role in the synaptic plasticity of the central nervous system. However, whether mGluR5 can promote the central sensitization by regulating synaptic plasticity in CM is unknown.

methodsMale Wistar rats were used to establish a CM rat model, and the expression of mGluR5 mRNA and protein were detected by qRT-PCR and western blot. The allodynia was assessed by mechanical and thermal thresholds, and central sensitization was assessed by expression of the phosphorylation of cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) at Serine 133(pCREB-S133) and c-Fos. The synaptic-associated protein postsynaptic density protein 95 (PSD), synaptophysin (Syp), and synaptophysin-1(Syt-1), synaptic ultrastructure, and dendritic spines were detected to explore synaptic plasticity. The expression of PKC, total NR2B(tNR2B), and phosphorylation of NR2B at Tyr1472(pNR2B-Y1472) were detected by western blot.

resultsWe found that the expression of mGluR5 was upregulated in CM rats. Downregulated the mGluR5 with MPEP alleviated the allodynia and reduced the expression of CGRP, pCREB-S133, c-Fos, PSD, Syp and Syt-1 and synaptic transmission. Moreover, the administration of MPEP inhibited the upregulation of PKC and pNR2B-Y1472.

conclusionsThese results indicate that mGluR5 contributes to central sensitization by regulating synaptic plasticity in CM through the PKC/NR2B signal, which suggests that mGluR5 may be a potential therapeutic candidate for CM.

Indexed as

Migraine DisordersNeuronal PlasticityAnimalsHyperalgesiaMaleRatsRats, WistarReceptor, Metabotropic Glutamate 5Receptor, Metabotropic Glutamate 5mGluR5MigraineNR2BPKCSynaptic plasticity

Identifiers

PMID33276724
PMCPMC7716451
OpenAlexW3109328446

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.