Evidence map›Paper›PMID 33619309›Full record

ArticleScientific reports2021

Skewness of X-chromosome inactivation increases with age and varies across birth cohorts in elderly Danish women.

Jonas Mengel-From, Rune Lindahl-Jacobsen, Marianne Nygaard, Mette Soerensen, Karen Helene Ørstavik, Jens Michael Hertz, Karen Andersen-Ranberg, Qihua Tan, Kaare Christensen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 33 citations in OpenAlex.

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  12. Allan-Herndon-Dudley syndrome in a female patient and related mechanisms.Molecular genetics and metabolism reports · 2022
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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

9 authors at 3 institutions in 2 countries.

Jonas Mengel-FromEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark. jmengel-from@health.sdu.dk.
Rune Lindahl-JacobsenEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark.
Marianne NygaardEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark.
Mette SoerensenEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark.
Karen Helene ØrstavikInstitute of Clinical Medicine, University of Oslo, Oslo, Norway.
Jens Michael HertzDepartment of Clinical Genetics, Odense University Hospital, Odense, Denmark.
Karen Andersen-RanbergEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark.
Qihua TanEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark.
Kaare ChristensenEpidemiology, Biostatistics and Biodemography, the Danish Twin Registry, and the Danish Aging Research Center, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9, 5000, Odense C, Denmark.
Odense University Hospital · DKUniversity of Southern Denmark · DKUniversity of Oslo · NO

Funding

the US National Institute of Health P01 AG08761
6 · The paper itself

Abstract

Mosaicism in blood varies with age, and cross-sectional studies indicate that for women, skewness of X-chromosomal mosaicism increases with age. This pattern could, however, also be due to less X-inactivation in more recent birth cohorts. Skewed X-chromosome inactivation was here measured longitudinally by the HUMARA assay in 67 septuagenarian and octogenarian women assessed at 2 time points, 10 years apart, and in 10 centenarian women assessed at 2 time points, 2-7 years apart. Skewed X-chromosome inactivation was also compared in 293 age-matched septuagenarian twins born in 1917-1923 and 1931-1937, and 212 centenarians born in 1895, 1905 and 1915. The longitudinal study of septuagenarians and octogenarians revealed that 16% (95% CI 7-29%) of the women developed skewed X-inactivation over a 10-year period. In the cross-sectional across-birth cohort study, the earlier-born septuagenarian (1917-1923) and centenarian women (1895) had a higher degree of skewness than the respective recent age-matched birth cohorts, which indicates that the women in the more recent cohorts, after the age of 70, had not only changed degree of skewness with age, they had also undergone less age-related hematopoietic sub-clone expansion. This may be a result of improved living conditions and better medical treatment in the more recent birth cohorts.

Indexed as

X Chromosome InactivationAgedAged, 80 and overAge FactorsAgingCross-Sectional StudiesDenmarkEpigenesis, GeneticFemaleGenetic MarkersGenomic InstabilityHumansLongitudinal StudiesMosaicismGenetic Markers

Identifiers

PMID33619309
PMCPMC7900237
OpenAlexW3131940867

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.