Evidence map›Paper›PMID 18097474›Full record

ArticleThe Journal of clinical investigation2008

No evidence that skewing of X chromosome inactivation patterns is transmitted to offspring in humans.

Véronique Bolduc, Pierre Chagnon, Sylvie Provost, Marie-Pierre Dubé, Claude Belisle, Marianne Gingras, Luigina Mollica, Lambert Busque

Abstract read
In one paragraph

Article in The Journal of clinical investigation, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
–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

60 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Observational
  5. Review
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  12. Article
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  14. Article
  15. X-chromosome inactivation patterns depend on age and tissue but not conception method in humans.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023
    Article
  16. Article
  17. Allan-Herndon-Dudley syndrome in a female patient and related mechanisms.Molecular genetics and metabolism reports · 2022
    Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Véronique BolducResearch Centre, Maisonneuve-Rosemont Hospital, University of Montreal, Montreal, Quebec, Canada.
Pierre Chagnon
Sylvie Provost
Marie-Pierre Dubé
Claude Belisle
Marianne Gingras
Luigina Mollica
Lambert Busque

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Skewing of X chromosome inactivation (XCI) can occur in normal females and increases in tissues with age. The mechanisms underlying skewing in normal females, however, remain controversial. To better understand the phenomenon of XCI in nondisease states, we evaluated XCI patterns in epithelial and hematopoietic cells of over 500 healthy female mother-neonate pairs. The incidence of skewing observed in mothers was twice that observed in neonates, and in both cohorts, the incidence of XCI was lower in epithelial cells than hematopoietic cells. These results suggest that XCI incidence varies by tissue type and that age-dependent mechanisms can influence skewing in both epithelial and hematopoietic cells. In both cohorts, a correlation was identified in the direction of skewing in epithelial and hematopoietic cells, suggesting common underlying skewing mechanisms across tissues. However, there was no correlation between the XCI patterns of mothers and their respective neonates, and skewed mothers gave birth to skewed neonates at the same frequency as nonskewed mothers. Taken together, our data suggest that in humans, the XCI pattern observed at birth does not reflect a single heritable genetic locus, but rather corresponds to a complex trait determined, at least in part, by selection biases occurring after XCI.

Indexed as

AdultAge FactorsChromosomes, Human, XCohort StudiesEpithelial CellsFemaleHematopoietic Stem CellsHumansIncidenceInfant, NewbornQuantitative Trait LociX Chromosome Inactivation

Identifiers

PMID18097474
PMCPMC2147671

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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.