Evidence map›Paper›PMID 20559465›Full record

ArticleFrontiers in aging neuroscience2010

Dramatic Loss of Ube3A Expression during Aging of the Mammalian Cortex.

Kate Williams, David A Irwin, David G Jones, Kathryn M Murphy

Open access · goldAbstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2010. 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
0.8field-weighted citation impact, top 25% 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, 32 citations in OpenAlex.

  1. Article
  2. Unraveling the Roles of UBE3A in Neurodevelopment and Neurodegeneration.International journal of molecular sciences · 2025
    Review
  3. Article
  4. Review
  5. Corrigendum: A Practical Guide to SparseFrontiers in neuroscience · 2022
    Article
  6. Article
  7. A Practical Guide to SparseFrontiers in neuroscience · 2021
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Development of Glutamatergic Proteins in Human Visual Cortex across the Lifespan.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Differential ubiquitination and degradation of huntingtin fragments modulated by ubiquitin-protein ligase E3A.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  19. 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 1 institution in 1 country.

Kate WilliamsMcMaster Integrative Neuroscience Discovery and Study Program, McMaster University Hamilton, ON, Canada.
David A Irwin
David G Jones
Kathryn M Murphy
McMaster University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurobiological studies of aging are beginning to link functional changes with a loss of experience-dependent plasticity. In the visual system, age-related functional changes include decreases in visual acuity, orientation selectivity, motion perception, and ocular dominance plasticity. A recent paper has shown that Ube3A, an E3 ubiquitin ligase that is absent in Angelman's syndrome, is required for experience-dependent plasticity during development of the visual cortex. Knocking out Ube3A during development leads to rigidity of ocular dominance plasticity that is strikingly similar to the reduced plasticity seen in older animals. Furthermore, ubiquitin ligases have been linked with age-related neurodegenerative disorders and longevity. Ubiquitin ligases selectively mark proteins for degradation, and a balance between synaptic proteins and their degradation is important for neural transmission and plasticity. This led us to ask whether normal aging is characterized by a loss of Ube3A in the cortex. We used Western blot analysis in order to quantify Ube3A expression across the life span of humans, macaque monkeys, and cats. We found that Ube3A expression declines across the lifespan in human, monkey, and cat cortex. The losses were substantial (50-80%) in all areas studied which includes V1, V3, V4, frontal, and auditory cortex. In addition, when compared with other synaptic proteins there was a selective loss of Ube3A in human cortex. The progressive loss of Ube3A expression during cortical aging is an important new finding. Furthermore, the selective loss of Ube3A in human cortex highlights a specific vulnerability in human brain aging that may signify a dramatic shift in cortical function and plasticity.

Indexed as

agingE6APplasticityUbe3Avisual cortex

Identifiers

PMID20559465
PMCPMC2887038
OpenAlexW2005010689

What OpenQuestion holds

Textmetadata
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.