Evidence map›Paper›PMID 21076082›Full record

ArticleBiology of reproduction2011

Transcript profiling of individual twin blastomeres derived by splitting two-cell stage murine embryos.

R Michael Roberts, Mika Katayama, Scott R Magnuson, Michael T Falduto, Karen E O Torres

Abstract read
In one paragraph

Article in Biology of reproduction, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Characterization of Enlarged Tongues in Cloned Piglets.Current issues in molecular biology · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. From cytoskeletal dynamics to organ asymmetry: a nonlinear, regulative pathway underlies left-right patterning.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  10. Review
  11. Article
  12. Totipotency: what it is and what it is not.Stem cells and development · 2014
    Article
  13. Article
  14. Review
  15. Early, nonciliary role for microtubule proteins in left-right patterning is conserved across kingdoms.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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

5 authors.

R Michael RobertsDivision of Animal Sciences, Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA. robertsrm@missouri.edu
Mika Katayama
Scott R Magnuson
Michael T Falduto
Karen E O Torres

Funding

INTERACTION BETWEEN BLASTOCYST AND UTERINE ENDOMETRIUMR01HD021896 · NICHD · UNIVERSITY OF MISSOURI-COLUMBIA · PI ROBERTS, R. MICHAEL · 1986 to 2010
$2.8M
INTERACTION BETWEEN BLASTOCYST AND UTERINE ENDOMETRIUMR37HD021896 · NICHD · UNIVERSITY OF MISSOURI-COLUMBIA · PI ROBERTS, ROBERT MICHAEL · 1990 to 1999
–
NICHD NIH HHS HD-21896NICHD NIH HHS R01 HD021896NICHD NIH HHS R37 HD021896
6 · The paper itself

Abstract

In invertebrates and amphibians, informational macromolecules in egg cytoplasm are organized to provide direction to the formation of embryonic lineages, but it is unclear whether vestiges of such prepatterning exist in mammals. Here we examined whether twin blastomeres from 2-cell stage mouse embryos differ in mRNA content. mRNA from 26 blastomeres derived from 13 embryos approximately mid-way through their second cell cycle was subjected to amplification. Twenty amplified samples were hybridized to arrays. Of those samples that hybridized successfully, 12 samples in six pairs were used in the final analysis. Probes displaying normalized values >0.25 (n = 4573) were examined for consistent bias in expression within blastomere pairs. Although transcript content varied between both individual embryos and twin blastomeres, no consistent asymmetries were observed for the majority of genes, with only 178 genes displaying a >1.4-fold difference in expression across all six pairs. Although class discovery clustering showed that blastomere pairs separated into two distinct groups in terms of their differentially expressed genes, when the data were tested for significance of asymmetrical expression, only 39 genes with >1.4-fold change ratios in six of six blastomere pairs passed the two-sample t-test (P < 0.05). Transcripts encoding proteins implicated in RNA processing and cytoskeletal organization were among the most abundant, differentially distributed mRNA, suggesting that a stochastically based lack of synchrony in cell cycle progression between the two cells might explain at least some and possibly all of the asymmetries in transcript composition.

Indexed as

Twinning, MonozygoticAnimalsBlastomeresCells, CulturedCleavage Stage, OvumEmbryo, MammalianFemaleGene Expression ProfilingGene Expression Regulation, DevelopmentalMaleMiceMicroarray AnalysisPregnancyRNA, MessengerTwinsRNA, Messenger

Identifiers

PMID21076082
PMCPMC3043130

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.