Evidence map›Paper›PMID 8533771›Full record

ArticleAmerican journal of human genetics1995

Expansion of the CGG repeat in fragile X in the FMR1 gene depends on the sex of the offspring.

D Z Loesch, R Huggins, V Petrovic, H Slater

Abstract read
In one paragraph

Article in American journal of human genetics, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. A genetic study of the FMR1 gene in a Sardinian multiple sclerosis population.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2015
    Article
  4. FMR1 CGG expansions: prevalence and sex ratios.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2013
    Article
  5. Review
  6. Unstable mutations in the FMR1 gene and the phenotypes.Advances in experimental medicine and biology · 2012
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Familial transmission of the FMR1 CGG repeat.American journal of human genetics · 1996
    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.

D Z LoeschSchool of Psychology, La Trobe University, Bundoora, Victoria, Australia.
R Huggins
V Petrovic
H Slater

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Analysis of 139 mother-to-offspring transmissions of fragile X CGG triplet repeats revealed that the repeat expansion is enhanced in mother-to-son transmissions compared with mother-to-daughter transmissions. Evidence has been based on analysis of mother-offspring differences in the size of repeat (in kb), as well as on comparisons between proportions of male and female offspring with premutations, and full mutations, inherited from mothers carrying a premutation. Mean difference in the repeat size from mother-son transmissions was 1.45 kb, compared with mother-daughter transmissions of 0.76 kb. The difference is due primarily to a greater proportion of male than female offspring with full mutation from the premutation mothers and also to a higher frequency of reduction in repeat size from mothers to daughters than from mothers to sons. Our findings suggest the possibility of an interaction of the normal X homologue in a female zygote with the FMR1 sequence on the fragile X during replication to account for the lower level of expansion in mother-to-daughter transmissions relative to mother-to-son transmissions.

Indexed as

Repetitive Sequences, Nucleic AcidRNA-Binding ProteinsFemaleFragile X Messenger Ribonucleoprotein 1Fragile X SyndromeHumansMaleMutationNerve Tissue ProteinsSex DistributionFMR1 protein, humanFragile X Messenger Ribonucleoprotein 1Nerve Tissue ProteinsRNA-Binding Proteins

Identifiers

PMID8533771
PMCPMC1801407

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.