Evidence map›Paper›PMID 8079992›Full record

ArticleAmerican journal of human genetics1994

The severe phenotype of females with tiny ring X chromosomes is associated with inability of these chromosomes to undergo X inactivation.

B R Migeon, S Luo, M Jani, P Jeppesen

Open access · greenAbstract read
In one paragraph

Article in American journal of human genetics, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 92 citations in OpenAlex.

  1. Review
  2. Review
  3. Cognitive assessment of mice strains heterozygous for cell-adhesion genes reveals strain-specific alterations in timing.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2014
    Article
  4. Article
  5. Review
  6. Article
  7. Regulation of X-chromosome inactivation in development in mice and humans.Microbiology and molecular biology reviews : MMBR · 1998
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. 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 2 institutions in 2 countries.

B R MigeonCenter for Medical Genetics, Johns Hopkins University, Baltimore.
S Luo
M Jani
P Jeppesen
Johns Hopkins University · USWestern General Hospital · GB

Funding

MAMMALIAN X INACTIVATION CENTERR01HD029044 · NICHD · JOHNS HOPKINS UNIVERSITY · PI MIGEON, BARBARA R · 1992 to 1996
–
NICHD NIH HHS HD05465NICHD NIH HHS HD29044
6 · The paper itself

Abstract

Mental retardation and a constellation of congenital malformations not usually associated with Turner syndrome are seen in some females with a mosaic 45,X/46,X,r(X) karyotype. Studies of these females show that the XIST locus on their tiny ring X chromosomes is either not present or not expressed. As XIST transcription is well correlated with inactivation of the X chromosome in female somatic cells and spermatogonia, nonexpression of the locus even when it is present suggests that these chromosomes are transcriptionally active. We examined the transcriptional activity of ring X chromosomes lacking XIST expression (XISTE-), from three females with severe phenotypes. The two tiny ring X chromosomes studied with an antibody specific for the acetylated isoforms of histone H4 marking transcribed chromatin domains were labeled at a level consistent with their being active. We also examined tow of the XISTE- ring chromosomes to determine whether genes that are normally silent on an inactive X are expressed from these chromosomes. Analyses of hybrid cells show that TIMP, ZXDA, and ZXDB loci on the proximal short arm, and AR and PHKA1 loci on the long arm, are well expressed from the tiny ring X chromosome lacking XIST DNA. Studies of the ring chromosome that has XIST DNA but does not transcribe it show that its AR allele is transcribed along with the one on the normal X allele.(ABSTRACT TRUNCATED AT 250 WORDS)

Indexed as

Ring ChromosomesRNA, UntranslatedAcetylationAnimalsBase SequenceCells, CulturedDNA PrimersDosage Compensation, GeneticFemaleFibroblastsFluorescent Antibody TechniqueGlycoproteinsHistonesHumansHybrid CellsLymphocytesDNA PrimersGlycoproteinsHistonesPhosphorylase KinaseReceptors, AndrogenRNA, Long NoncodingRNA, MessengerRNA, UntranslatedTissue Inhibitor of MetalloproteinasesTranscription FactorsXIST non-coding RNA

Identifiers

PMID8079992
PMCPMC1918382
OpenAlexW2992741852

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.