Evidence map›Paper›PMID 27381005›Full record

ArticleScientific reports2016

4-aminopyridine reverses ataxia and cerebellar firing deficiency in a mouse model of spinocerebellar ataxia type 6.

Sriram Jayabal, Hui Ho Vanessa Chang, Kathleen E Cullen, Alanna J Watt

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 104 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Cerebellar Purkinje cell firing reduction contributes to aging-related declining motor coordination in mice.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Balance performance in aged mice is dependent on unipolar brush cells.bioRxiv : the preprint server for biology · 2024
    Article
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  12. Review
  13. Article
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  18. Review
  19. Coexistence of multiple sclerosis and spinocerebellar ataxia type-8.Multiple sclerosis (Houndmills, Basingstoke, England) · 2023
    Article
  20. Review

1 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Sriram JayabalDepartment of Biology, McGill University, Montreal, H3G 0B1, Canada.
Hui Ho Vanessa ChangDepartment of Physiology, McGill University, Montreal, H3G 1Y6, Canada.
Kathleen E CullenDepartment of Physiology, McGill University, Montreal, H3G 1Y6, Canada.
Alanna J WattDepartment of Biology, McGill University, Montreal, H3G 0B1, Canada.
McGill University · CA

Funding

The Physiology of Vestibular CompensationR01DC002390 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI Kathleen E Cullen · 1995 to 2026
$10.7M
CIHR MOP-299921CIHR MOP-42440NIDCD NIH HHS R01 DC002390
6 · The paper itself

Abstract

Spinocerebellar ataxia type 6 (SCA6) is a devastating midlife-onset autosomal dominant motor control disease with no known treatment. Using a hyper-expanded polyglutamine (84Q) knock-in mouse, we found that cerebellar Purkinje cell firing precision was degraded in heterozygous (SCA6(84Q/+)) mice at 19 months when motor deficits are observed. Similar alterations in firing precision and motor control were observed at disease onset at 7 months in homozygous (SCA6(84Q/84Q)) mice, as well as a reduction in firing rate. We further found that chronic administration of the FDA-approved drug 4-aminopyridine (4-AP), which targets potassium channels, alleviated motor coordination deficits and restored cerebellar Purkinje cell firing precision to wildtype (WT) levels in SCA6(84Q/84Q) mice both in acute slices and in vivo. These results provide a novel therapeutic approach for treating ataxic symptoms associated with SCA6.

Indexed as

4-AminopyridineAnimalsCerebellumDisease Models, AnimalElectrophysiologyFemaleHeterozygoteHomozygoteMaleMiceMice, TransgenicMotor ActivityPotassium ChannelsPurkinje CellsSpinocerebellar Ataxias4-AminopyridinePotassium Channels

Identifiers

PMID27381005
PMCPMC4933933
OpenAlexW2471046935

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.