Evidence map›Paper›PMID 27052848›Full record

ArticleNature communications2016

Real-time imaging of glutamate clearance reveals normal striatal uptake in Huntington disease mouse models.

Matthew P Parsons, Matthieu P Vanni, Cameron L Woodard, Rujun Kang, Timothy H Murphy, Lynn A Raymond

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
8.4field-weighted citation impact, top 2% 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

48 citing papers in PubMed, 101 citations in OpenAlex.

  1. Trial
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  7. Axonal ER CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  8. Astrocytic contributions to Huntington's disease pathophysiology.Annals of the New York Academy of Sciences · 2023
    Review
  9. Review
  10. Article
  11. Article
  12. Early Changes in Striatal Activity and Motor Kinematics in a Huntington's Disease Mouse Model.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  13. Article
  14. Synaptic Dysfunction in Huntington's Disease: Lessons from Genetic Animal Models.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2022
    Article
  15. Review
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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

6 authors at 1 institution in 1 country.

Matthew P ParsonsBrain Research Centre and Djavad Mowafaghian Centre for Brain Health, Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Matthieu P VanniBrain Research Centre and Djavad Mowafaghian Centre for Brain Health, Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Cameron L WoodardBrain Research Centre and Djavad Mowafaghian Centre for Brain Health, Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Rujun KangBrain Research Centre and Djavad Mowafaghian Centre for Brain Health, Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Timothy H MurphyBrain Research Centre and Djavad Mowafaghian Centre for Brain Health, Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 1Z3.
Lynn A RaymondBrain Research Centre and Djavad Mowafaghian Centre for Brain Health, Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 1Z3.
University of British Columbia · CA

Funding

Canadian Institutes of Health Research FDN-143210Canadian Institutes of Health Research MOP-12699
6 · The paper itself

Abstract

It has become well accepted that Huntington disease (HD) is associated with impaired glutamate uptake, resulting in a prolonged time-course of extracellular glutamate that contributes to excitotoxicity. However, the data supporting this view come largely from work in synaptosomes, which may overrepresent nerve-terminal uptake over astrocytic uptake. Here, we quantify real-time glutamate dynamics in HD mouse models by high-speed imaging of an intensity-based glutamate-sensing fluorescent reporter (iGluSnFR) and electrophysiological recordings of synaptically activated transporter currents in astrocytes. These techniques reveal a disconnect between the results obtained in synaptosomes and those in situ. Exogenous glutamate uptake is impaired in synaptosomes, whereas real-time measures of glutamate clearance in the HD striatum are normal or even accelerated, particularly in the aggressive R6/2 model. Our results highlight the importance of quantifying glutamate dynamics under endogenous release conditions, and suggest that the widely cited uptake impairment in HD does not contribute to pathogenesis.

Indexed as

AnimalsAstrocytesBiological TransportCorpus StriatumDependovirusDisease Models, AnimalGenes, ReporterGenetic VectorsGlutamic AcidHumansHuntington DiseaseMaleMembrane PotentialsMiceMice, TransgenicOptical ImagingGlutamic Acid

Identifiers

PMID27052848
PMCPMC4829692
OpenAlexW2333165720

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.