Evidence map›Paper›PMID 12545428›Full record

ArticleAmerican journal of human genetics2003

SCA8 repeat expansion: large CTA/CTG repeat alleles are more common in ataxic patients, including those with SCA6.

Yuishin Izumi, Hirofumi Maruyama, Masaya Oda, Hiroyuki Morino, Takayuki Okada, Hidefumi Ito, Iwao Sasaki, Hiroyasu Tanaka, Osamu Komure, Fukashi Udaka and 2 more

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in American journal of human genetics, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.4field-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, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. A genome-wide approach for the discovery of novel repeat expansion disorders in the Undiagnosed Diseases Network cohort.Genetics in medicine : official journal of the American College of Medical Genetics · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Parkinsonism in spinocerebellar ataxia.BioMed research international · 2015
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 1 country.

Yuishin IzumiDepartment of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical Science, Hiroshima, Japan.
Hirofumi Maruyama
Masaya Oda
Hiroyuki Morino
Takayuki Okada
Hidefumi Ito
Iwao Sasaki
Hiroyasu Tanaka
Osamu Komure
Fukashi Udaka
Shigenobu Nakamura
Hideshi Kawakami
Hiroshima University · JPSumitomo Hospital · JPHirosaki University · JPKitano Hospital · JPUtano Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We analyzed the SCA8 CTA/CTG repeat in a large group of Japanese subjects. The frequency of large alleles (85-399 CTA/CTG repeats) was 1.9% in spinocerebellar ataxia (SCA), 0.4% in Parkinson disease, 0.3% in Alzheimer disease, and 0% in a healthy control group; the frequency was significantly higher in the group with SCA than in the control group. Homozygotes for large alleles were observed only in the group with SCA. In five patients with SCA from two families, a large SCA8 CTA/CTG repeat and a large SCA6 CAG repeat coexisted. Age at onset was correlated with SCA8 repeats rather than SCA6 repeats in these five patients. In one of these families, at least one patient showed only a large SCA8 CTA/CTG repeat allele, with no large SCA6 CAG repeat allele. We speculate that the presence of a large SCA8 CTA/CTG repeat allele influences the function of channels such as alpha(1A)-voltage-dependent calcium channel through changing or aberrant splicing, resulting in the development of cerebellar ataxia, especially in homozygous patients.

Indexed as

Trinucleotide RepeatsAsian PeopleBase SequenceCalcium ChannelsCalcium Channels, N-TypeDNADNA PrimersFemaleHumansJapanMaleNerve Tissue ProteinsParkinson DiseasePedigreeReference ValuesRNA, Long NoncodingATXN8OS gene product, humanCACNA1A protein, humanCalcium ChannelsCalcium Channels, N-TypeDNADNA PrimersNerve Tissue ProteinsRNA, Long NoncodingRNA, Untranslated

Identifiers

PMID12545428
PMCPMC1180244
OpenAlexW2015781399

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.