Evidence map›Paper›PMID 20967267›Full record

ArticlePloS one2010

Abnormalities in oxygen sensing define early and late onset preeclampsia as distinct pathologies.

Alessandro Rolfo, Ariel Many, Antonella Racano, Reshef Tal, Andrea Tagliaferro, Francesca Ietta, Jinxia Wang, Martin Post, Isabella Caniggia

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
7.8field-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

48 citing papers in PubMed, 110 citations in OpenAlex.

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  6. CaInternational journal of molecular sciences · 2023
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  16. The Role of Leptin in Fetal Growth during Pre-Eclampsia.International journal of molecular sciences · 2021
    Review
  17. Review
  18. Tracking placental development in health and disease.Nature reviews. Endocrinology · 2020
    Review
  19. Review
  20. 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

9 authors at 4 institutions in 1 country.

Alessandro RolfoSamuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.
Ariel Many
Antonella Racano
Reshef Tal
Andrea Tagliaferro
Francesca Ietta
Jinxia Wang
Martin Post
Isabella Caniggia
Mount Sinai Hospital · CALunenfeld-Tanenbaum Research Institute · CAHospital for Sick Children · CAUniversity of Toronto · CA

Funding

Canadian Institutes of Health Research MOP-14096
6 · The paper itself

Abstract

backgroundThe pathogenesis of preeclampsia, a serious pregnancy disorder, is still elusive and its treatment empirical. Hypoxia Inducible Factor-1 (HIF-1) is crucial for placental development and early detection of aberrant regulatory mechanisms of HIF-1 could impact on the diagnosis and management of preeclampsia. HIF-1α stability is controlled by O(2)-sensing enzymes including prolyl hydroxylases (PHDs), Factor Inhibiting HIF (FIH), and E3 ligases Seven In Absentia Homologues (SIAHs). Here we investigated early- (E-PE) and late-onset (L-PE) human preeclamptic placentae and their ability to sense changes in oxygen tension occurring during normal placental development. METHODS AND

findingsExpression of PHD2, FIH and SIAHs were significantly down-regulated in E-PE compared to control and L-PE placentae, while HIF-1α levels were increased. PHD3 expression was increased due to decreased FIH levels as demonstrated by siRNA FIH knockdown experiments in trophoblastic JEG-3 cells. E-PE tissues had markedly diminished HIF-1α hydroxylation at proline residues 402 and 564 as assessed with monoclonal antibodies raised against hydroxylated HIF-1α P402 or P564, suggesting regulation by PHD2 and not PHD3. Culturing villous explants under varying oxygen tensions revealed that E-PE, but not L-PE, placentae were unable to regulate HIF-1α levels because PHD2, FIH and SIAHs did not sense a hypoxic environment.

conclusionDisruption of oxygen sensing in E-PE vs. L-PE and control placentae is the first molecular evidence of the existence of two distinct preeclamptic diseases and the unique molecular O(2)-sensing signature of E-PE placentae may be of diagnostic value when assessing high risk pregnancies and their severity.

Indexed as

AdultBase SequenceBlotting, WesternCell LineDNA PrimersFemaleGene SilencingHumansIn Situ HybridizationOxygenPre-EclampsiaPregnancyReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingDNA PrimersOxygenRNA, Small Interfering

Identifiers

PMID20967267
PMCPMC2953500
OpenAlexW2006347607

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.