Evidence map›Paper›PMID 12032310›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Placental overgrowth in mice lacking the imprinted gene Ipl.

Dale Frank, Weiwei Fortino, Lorraine Clark, Raymond Musalo, Wenxian Wang, Anjana Saxena, Chi-Ming Li, Wolf Reik, Thomas Ludwig, Benjamin Tycko

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 216 citations in OpenAlex.

  1. Pooled it
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  14. Genomic imprinting and its effects on postnatal growth and adult metabolism.Cellular and molecular life sciences : CMLS · 2019
    Review
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21 more citing papers are in PubMed but not listed here.

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

10 authors at 3 institutions in 2 countries.

Dale FrankInstitute for Cancer Genetics, Department of Pathology, Columbia University, New York, NY 10032, USA.
Weiwei Fortino
Lorraine Clark
Raymond Musalo
Wenxian Wang
Anjana Saxena
Chi-Ming Li
Wolf Reik
Thomas Ludwig
Benjamin Tycko
Cancer Genetics (United States) · USBabraham Institute · GBColumbia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Ipl (Tssc3) gene lies in an extended imprinted region of distal mouse chromosome 7, which also contains the Igf2 gene. Expression of Ipl is highest in placenta and yolk sac, where its mRNA is derived almost entirely from the maternal allele. Ipl encodes a small cytoplasmic protein with a pleckstrin-homology (PH) domain. We constructed two lines of mice with germ-line deletions of this gene (Ipl(neo) and Ipl(loxP)) and another line deleted for the similar but nonimprinted gene Tih1. All three lines were viable. There was consistent overgrowth of the Ipl-null placentas, with expansion of the spongiotrophoblast. These larger placentas did not confer a fetal growth advantage; fetal size was normal in Ipl nulls with the Ipl(neo) allele and was decreased slightly in nulls with the Ipl(loxP) allele. When bred into an Igf2 mutant background, the Ipl deletion partially rescued the placental but not fetal growth deficiency. Neither fetal nor placental growth was affected by deletion of Tih1. These results show a nonredundant function for Ipl in restraining placental growth. The data further indicate that Ipl can act, at least in part, independently of insulin-like growth factor-2 signaling. Thus, genomic imprinting regulates multiple pathways to control placental size.

Indexed as

Genomic ImprintingAnimalsCrosses, GeneticFemaleGene DeletionHeterozygoteInfertility, FemaleInsulin-Like Growth Factor IIMiceMice, KnockoutMolecular Sequence DataNuclear ProteinsPlacentaPregnancyRestriction MappingRNA, MessengerInsulin-Like Growth Factor IINuclear ProteinsRNA, MessengerTSSC3 protein

Identifiers

PMID12032310
PMCPMC124258
OpenAlexW2148612336

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.