Evidence map›Paper›PMID 10557208›Full record

ArticleGenes & development1999

Mice lacking both presenilin genes exhibit early embryonic patterning defects.

D B Donoviel, A K Hadjantonakis, M Ikeda, H Zheng, P S Hyslop, A Bernstein

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 173 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
173citing 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

173 citing papers in PubMed, 1 synthesis or guideline pooled it, 458 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
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  14. γ-Secretase in Alzheimer's disease.Experimental & molecular medicine · 2022
    Review
  15. Presenilin Is Essential for ApoE Secretion, a Novel Role of Presenilin Involved in Alzheimer's Disease Pathogenesis.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  16. Article
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  19. Review
  20. Review

113 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

6 authors at 1 institution in 2 countries.

D B DonovielSamuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G-1X5. donoviel@mshri.on.ca
A K Hadjantonakis
M Ikeda
H Zheng
P S Hyslop
A Bernstein
Merck & Co., Inc., Rahway, NJ, USA (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genetic studies in worms, flies, and humans have implicated the presenilins in the regulation of the Notch signaling pathway and in the pathogenesis of Alzheimer's Disease. There are two highly homologous presenilin genes in mammals, presenilin 1 (PS1) and presenilin 2 (PS2). In mice, inactivation of PS1 leads to developmental defects that culminate in a perinatal lethality. To test the possibility that the late lethality of PS1-null mice reflects genetic redundancy of the presenilins, we have generated PS2-null mice by gene targeting, and subsequently, PS1/PS2 double-null mice. Mice homozygous for a targeted null mutation in PS2 exhibit no obvious defects; however, loss of PS2 on a PS1-null background leads to embryonic lethality at embryonic day 9.5. Embryos lacking both presenilins, and surprisingly, those carrying only a single copy of PS2 on a PS1-null background, exhibit multiple early patterning defects, including lack of somite segmentation, disorganization of the trunk ventral neural tube, midbrain mesenchyme cell loss, anterior neuropore closure delays, and abnormal heart and second branchial arch development. In addition, Delta like-1 (Dll1) and Hes-5, two genes that lie downstream in the Notch pathway, were misexpressed in presenilin double-null embryos: Hes-5 expression was undetectable in these mice, whereas Dll1 was expressed ectopically in the neural tube and brain of double-null embryos. We conclude that the presenilins play a widespread role in embryogenesis, that there is a functional redundancy between PS1 and PS2, and that both vertebrate presenilins, like their invertebrate homologs, are essential for Notch signaling.

Indexed as

Embryonic and Fetal DevelopmentAnimalsBody PatterningGene TargetingMembrane ProteinsMiceMice, Mutant StrainsPresenilin-1Presenilin-2Receptors, NotchSignal TransductionMembrane ProteinsPresenilin-1Presenilin-2Receptors, Notch

Identifiers

PMID10557208
PMCPMC317124
OpenAlexW2016668224

What OpenQuestion holds

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Registered trials

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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.