Evidence map›Paper›PMID 15911775›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2005

Epigenetic programming in the preimplantation rat embryo is disrupted by chronic paternal cyclophosphamide exposure.

Tara S Barton, Bernard Robaire, Barbara F Hales

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 83 citations in OpenAlex.

  1. Effects of Cytotoxic Therapies on the Sperm Genome and Epigenome.Advances in experimental medicine and biology · 2026
    Review
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  11. The activation of DNA damage detection and repair responses in cleavage-stage rat embryos by a damaged paternal genome.Toxicological sciences : an official journal of the Society of Toxicology · 2012
    Article
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  14. Review
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  17. Cytostatic drug treatment causes seeding of gene promoter methylation.European journal of cancer (Oxford, England : 1990) · 2007
    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

3 authors at 1 institution in 1 country.

Tara S BartonDepartments of Pharmacology and Therapeutics and Obstetrics and Gynecology, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC, Canada H3G 1Y6.
Bernard Robaire
Barbara F Hales
McGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preconceptional paternal exposure to cyclophosphamide, a widely used anticancer agent, leads to increases in embryo loss, malformations, and behavioral deficits in offspring; these abnormalities are transmissible to subsequent generations [Auroux, M., Dulioust, E., Selva, J. & Rince, P. (1990) Mutat. Res. 229, 189-200]. Little information exists on the mechanisms underlying this male-mediated developmental toxicity. We assessed the impact of paternal cyclophosphamide exposure on the dynamic regulation of histone H4 acetylation at lysine 5 and DNA methylation in preimplantation rat embryos. Zygotes sired by drug-treated males displayed advanced developmental progression, increased pronuclear areas, and disruption of the epigenetic programming of both parental genomes. Early postfertilization zygotic pronuclei were hyperacetylated; by mid-zygotic development, male pronuclei were dramatically hypomethylated, whereas female pronuclei were hypermethylated. Micronuclei were substantially elevated, and histone H4 acetylation at lysine 5 localization to the nuclear periphery was disrupted in two-cell embryos fertilized by cyclophosphamide-exposed spermatozoa. This finding demonstrates that paternal exposure to this drug induces aberrant epigenetic programming in early embryos. We hypothesize that disturbances in epigenetic programming contribute to heritable instabilities later in development, emphasizing the importance of epigenetic risk assessment after chemotherapy.

Indexed as

Paternal ExposureAcetylationAnimalsBlastocystCyclophosphamideDNA MethylationEpigenesis, GeneticFluorescent Antibody TechniqueHistonesMaleMicronucleus TestsMicroscopy, ConfocalRatsRats, Sprague-DawleyCyclophosphamideHistones

Identifiers

PMID15911775
PMCPMC1138259
OpenAlexW2027851871

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.