Evidence map›Paper›PMID 28744893›Full record

ArticleThe Journal of comparative neurology2017

Tonotopic alterations in inhibitory input to the medial nucleus of the trapezoid body in a mouse model of Fragile X syndrome.

Elizabeth A McCullagh, Ernesto Salcedo, Molly M Huntsman, Achim Klug

Abstract read
In one paragraph

Article in The Journal of comparative neurology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Altered Auditory Maturation in Fragile X Syndrome and Its Involvement in Audiogenic Seizure Susceptibility.Autism research : official journal of the International Society for Autism Research · 2026
    Article
  3. Article
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  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Channelopathies in fragile X syndrome.Nature reviews. Neuroscience · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Hyperexcitability and Homeostasis in Fragile X Syndrome.Frontiers in molecular neuroscience · 2021
    Article
  18. Article
  19. Mechanisms underlying auditory processing deficits in Fragile X syndrome.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Review
  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

4 authors at 2 institutions in 1 country.

Elizabeth A McCullaghDepartment of Physiology and Biophysics, University of Colorado School of Medicine, Aurora, Colorado.ORCID http://orcid.org/0000-0003-3779-0141
Ernesto SalcedoCell and Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado.
Molly M HuntsmanDepartment of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
Achim KlugDepartment of Physiology and Biophysics, University of Colorado School of Medicine, Aurora, Colorado.
University of Colorado Denver · USUniversity of Colorado Anschutz Medical Campus · US

Funding

Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
ZEBRAFISH TRANSGENIC CORE - ROCKY MOUNTAIN NEUROLOGICAL DISORDERS CORE CENTERP30NS048154 · NINDS · UNIVERSITY OF COLORADO DENVER · PI RIBERA, ANGELES BADELL · 2004 to 2020
$10.1M
Institutional Training in Otolaryngology ResearchT32DC012280 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI Yuri Agrawal, Sue C. Kinnamon · 2013 to 2026
$3.4M
The roles of GABAergic and glycinergic inhibition in the adult MNTBR01DC011582 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI KLUG, ACHIM · 2011 to 2015
$1.8M
Cortical circuit dysfunction in fragile x syndromeR01NS095311 · NINDS · UNIVERSITY OF COLORADO DENVER · PI HUNTSMAN, MOLLY-MAUREEN · 2015 to 2018
$1.4M
NCATS NIH HHS UL1 TR001082NIDCD NIH HHS R01 DC011582NIDCD NIH HHS T32 DC012280NINDS NIH HHS P30 NS048154NINDS NIH HHS R01 NS095311
6 · The paper itself

Abstract

Hyperexcitability and the imbalance of excitation/inhibition are one of the leading causes of abnormal sensory processing in Fragile X syndrome (FXS). The precise timing and distribution of excitation and inhibition is crucial for auditory processing at the level of the auditory brainstem, which is responsible for sound localization ability. Sound localization is one of the sensory abilities disrupted by loss of the Fragile X Mental Retardation 1 (Fmr1) gene. Using triple immunofluorescence staining we tested whether there were alterations in the number and size of presynaptic structures for the three primary neurotransmitters (glutamate, glycine, and GABA) in the auditory brainstem of Fmr1 knockout mice. We found decreases in either glycinergic or GABAergic inhibition to the medial nucleus of the trapezoid body (MNTB) specific to the tonotopic location within the nucleus. MNTB is one of the primary inhibitory nuclei in the auditory brainstem and participates in the sound localization process with fast and well-timed inhibition. Thus, a decrease in inhibitory afferents to MNTB neurons should lead to greater inhibitory output to the projections from this nucleus. In contrast, we did not see any other significant alterations in balance of excitation/inhibition in any of the other auditory brainstem nuclei measured, suggesting that the alterations observed in the MNTB are both nucleus and frequency specific. We furthermore show that glycinergic inhibition may be an important contributor to imbalances in excitation and inhibition in FXS and that the auditory brainstem is a useful circuit for testing these imbalances.

Indexed as

AnimalsAuditory PathwaysDisease Models, AnimalFemaleFragile X Messenger Ribonucleoprotein 1Fragile X SyndromeGene Expression RegulationGlutamate DecarboxylaseGlutamic AcidGlycineGlycine Plasma Membrane Transport ProteinsMaleMiceMice, Inbred C57BLMice, TransgenicNeural InhibitionFmr1 protein, mouseFragile X Messenger Ribonucleoprotein 1Glutamate Decarboxylaseglutamate decarboxylase 1Glutamic AcidGlycineGlycine Plasma Membrane Transport ProteinsSlc17a6 protein, mouseSlc6a5 protein, mouseVesicular Glutamate Transport Protein 2brain stemfragile X syndromegamma-aminobutyric acidglutamic acidglycineRRID: AB_1587626RRID: AB_2278725RRID: AB_2619997sound localization

Identifiers

PMID28744893
PMCPMC5615817
OpenAlexW2736811460

What OpenQuestion holds

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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.