Evidence map›Paper›PMID 19202126›Full record

ArticleBlood2009

Skewing of X-inactivation ratios in blood cells of aging women is confirmed by independent methodologies.

Lambert Busque, Yves Paquette, Sylvie Provost, Denis-Claude Roy, Ross L Levine, Luigina Mollica, D Gary Gilliland

Open access · greenAbstract readValidation Study
In one paragraph

Article in Blood, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Genetics of Sex Differences in Immunity.Current topics in microbiology and immunology · 2023
    Article
  7. X-chromosomal inactivation patterns in women with Fabry disease.Molecular genetics & genomic medicine · 2022
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. AdultNeurology · 2019
    Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 6 institutions in 3 countries.

Lambert BusqueResearch Centre, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada. lbusque.hmr@ssss.gouv.qc.ca
Yves Paquette
Sylvie Provost
Denis-Claude Roy
Ross L Levine
Luigina Mollica
D Gary Gilliland
Université de Montréal · CAArt Research Centre of the Slovak Academy of Sciences · SKBrigham and Women's Hospital · USHôpital Maisonneuve-Rosemont · CAMemorial Sloan Kettering Cancer Center · USMontreal Heart Institute · CA

Funding

Molecular genetic analysis of tyrosine kinases in myeloproliferative disordersK08HL082677 · NHLBI · SLOAN-KETTERING INST CAN RESEARCH · PI LEVINE, ROSS L · 2006 to 2010
$670k
NHLBI NIH HHS K08 HL082677
6 · The paper itself

Abstract

Nonrandom X-chromosome inactivation (XCI), also known as skewing, has been documented in the blood cells of a significant proportion of normal aging women by the use of methylation-based assays at the polymorphic human androgen receptor locus (HUMARA). Recent data obtained with a new transcription-based XCI determination method, termed suppressive polymerase chain reaction (PCR), has shed controversy over the validity of XCI ratio results obtained with HUMARA. To resolve this disparity, we analyzed XCI in polymorphonuclear leukocytes of a large cohort of women aged 43 to 100 years with the use of HUMARA (n=100), a TaqMan single nucleotide polymorphism (SNP) assay (n=90), and the suppressive polymerase chain reaction (PCR) assay (n=67). The 3 methods yielded similar skewing incidences (42%, 38%, and 40%, respectively), and highly concordant XCI ratios. This confirms that the skewing of XCI ratio seen in blood cells of aging women is a bona fide and robust biologic phenomenon.

Indexed as

AdultAgedAged, 80 and overAgingChromosomes, Human, XDNA MethylationDosage Compensation, GeneticFemaleHumansMiddle AgedModels, GeneticNeutrophilsPolymerase Chain ReactionPolymorphism, Single NucleotideReproducibility of ResultsX Chromosome Inactivation

Identifiers

PMID19202126
PMCPMC4729536
OpenAlexW2053574838

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.