Evidence map›Paper›PMID 18490515›Full record

ArticleBlood2008

Maternal Par4 and platelets contribute to defective placenta formation in mouse embryos lacking thrombomodulin.

Rashmi Sood, Lynette Sholl, Berend Isermann, Mark Zogg, Shaun R Coughlin, Hartmut Weiler

Abstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Changes of new coagulation markers in healthy pregnant women and establishment of reference intervals in Changsha.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2022
    Article
  5. Article
  6. Article
  7. Review
  8. Maternal Platelets—Friend or Foe of the Human Placenta?International journal of molecular sciences · 2019
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Placental thrombomodulin expression in recurrent miscarriage.Reproductive biology and endocrinology : RB&E · 2010
    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

6 authors at 2 institutions in 1 country.

Rashmi SoodBlood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin 53226, USA. rsood@mcw.edu
Lynette Sholl
Berend Isermann
Mark Zogg
Shaun R Coughlin
Hartmut Weiler
Versiti Blood Center of Wisconsin · USUniversity of California, San Francisco · US

Funding

PROTEASE-ACTIVATED RECEPTORS IN EMBRYONIC DEVELOPMENTR01HL065590 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI COUGHLIN, SHAUN R. · 2000 to 2013
$5.9M
MOLECULAR MECHANISMS OF THROMBIN SIGNALLINGR01HL044907 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI COUGHLIN, SHAUN R. · 1991 to 2008
$3.6M
THROMBOMODULIN FUNCTION IN CELLULAR PHYSIOLOGYR01HL060655 · NHLBI · VERSITI WISCONSIN, INC. · PI WEILER, HARTMUT KARL-HEINZ · 1999 to 2007
$2.6M
NHLBI NIH HHS HL44907NHLBI NIH HHS HL60655NHLBI NIH HHS HL65590NHLBI NIH HHS R01 HL044907NHLBI NIH HHS R01 HL060655NHLBI NIH HHS R01 HL065590
6 · The paper itself

Abstract

Absence of the blood coagulation inhibitor thrombomodulin (Thbd) from trophoblast cells of the mouse placenta causes a fatal arrest of placental morphogenesis. The pathogenesis of placental failure requires tissue factor, yet is not associated with increased thrombosis and persists in the absence of fibrinogen. Here, we examine the role of alternative targets of coagulation that might contribute to the placental failure and death of Thbd(-/-) embryos. We demonstrate that genetic deficiency of the protease-activated receptors, Par1 or Par2, in the embryo and trophoblast cells does not prevent the death of Thbd(-/-) embryos. Similarly, genetic ablation of the complement pathway or of maternal immune cell function does not decrease fetal loss. In contrast, Par4 deficiency of the mother, or the absence of maternal platelets, restores normal development in one-third of Thbd-null embryos. This finding generates new evidence implicating increased procoagulant activity and thrombin generation in the demise of thrombomodulin-null embryos, and suggests that platelets play a more prominent role in placental malfunction associated with the absence of thrombomodulin than fibrin formation. Our findings demonstrate that fetal prothrombotic mutations can cause localized activation of maternal platelets at the feto-maternal interface in a mother with normal hemostatic function.

Indexed as

AnimalsBlood CoagulationBlood PlateletsEmbryo, MammalianFemaleMaternal-Fetal ExchangeMiceMice, KnockoutMothersPlacenta DiseasesPregnancyReceptors, Proteinase-ActivatedThrombomodulinThrombophiliaprotease-activated receptor 4, mouseReceptors, Proteinase-ActivatedThrombomodulin

Identifiers

PMID18490515
PMCPMC2481555
OpenAlexW2148470385

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.