Evidence map›Paper›PMID 18832330›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2009

Limbic epileptogenesis in a mouse model of fragile X syndrome.

Li-Feng Qiu, Ting-Jia Lu, Xiao-Ling Hu, Yong-Hong Yi, Wei-Ping Liao, Zhi-Qi Xiong

Open access · hybridAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Hyperexcitability and Homeostasis in Fragile X Syndrome.Frontiers in molecular neuroscience · 2021
    Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Fragile X syndrome and targeted treatment trials.Results and problems in cell differentiation · 2012
    Review
  13. Therapeutic strategies in fragile X syndrome: dysregulated mGluR signaling and beyond.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2012
    Review
  14. Annual Research Review: Transgenic mouse models of childhood-onset psychiatric disorders.Journal of child psychology and psychiatry, and allied disciplines · 2011
    Review
  15. Article
  16. Hypersensitivity to mGluR5 and ERK1/2 leads to excessive protein synthesis in the hippocampus of a mouse model of fragile X syndrome.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  17. Emerging pharmacotherapies for neurodevelopmental disorders.Journal of developmental and behavioral pediatrics : JDBP · 2010
    Review
  18. Fragile X mental retardation protein in the driver's seat.Cerebral cortex (New York, N.Y. : 1991) · 2009
    Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 1 country.

Li-Feng QiuInstitute of Neuroscience and State Key Laboratory of Neuroscience, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, China.
Ting-Jia Lu
Xiao-Ling Hu
Yong-Hong Yi
Wei-Ping Liao
Zhi-Qi Xiong
Chinese Academy of Sciences · CNGuangzhou Medical University · CNSecond Affiliated Hospital of Guangzhou Medical University · CNShanghai Institutes for Biological Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fragile X syndrome (FXS), caused by silencing of the Fmr1 gene, is the most common form of inherited mental retardation. Epilepsy is reported to occur in 20-25% of individuals with FXS. However, no overall increased excitability has been reported in Fmr1 knockout (KO) mice, except for increased sensitivity to auditory stimulation. Here, we report that kindling increased the expressions of Fmr1 mRNA and protein in the forebrain of wild-type (WT) mice. Kindling development was dramatically accelerated in Fmr1 KO mice, and Fmr1 KO mice also displayed prolonged electrographic seizures during kindling and more severe mossy fiber sprouting after kindling. The accelerated rate of kindling was partially repressed by inhibiting N-methyl-D-aspartic acid receptor (NMDAR) with MK-801 or mGluR5 receptor with 2-methyl-6-(phenylethynyl)-pyridine (MPEP). The rate of kindling development in WT was not effected by MPEP, however, suggesting that FMRP normally suppresses epileptogenic signaling downstream of metabolic glutamate receptors. Our findings reveal that FMRP plays a critical role in suppressing limbic epileptogenesis and predict that the enhanced susceptibility of patients with FXS to epilepsy is a direct consequence of the loss of an important homeostatic factor that mitigates vulnerability to excessive neuronal excitation.

Indexed as

Disease Models, AnimalAnimalsEpilepsyFragile X Messenger Ribonucleoprotein 1Fragile X SyndromeHumansLimbic SystemMaleMiceMice, KnockoutFmr1 protein, mouseFragile X Messenger Ribonucleoprotein 1

Identifiers

PMID18832330
PMCPMC2693616
OpenAlexW2142116299

What OpenQuestion holds

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LicenceCC BY-NC
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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.