Evidence map›Paper›PMID 8581935›Full record

ArticleCell and tissue research1995

Physiological dilation of uteroplacental arteries in the guinea pig depends on nitric oxide synthase activity of extravillous trophoblast.

A Nanaev, K Chwalisz, H G Frank, G Kohnen, C Hegele-Hartung, P Kaufmann

Abstract read
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In one paragraph

Article in Cell and tissue research, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
6.8field-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

29 citing papers in PubMed, 127 citations in OpenAlex.

  1. Article
  2. Article
  3. Reliability of Rodent and Rabbit Models in Preeclampsia Research.International journal of molecular sciences · 2022
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. A review of inter- and intraspecific variation in the eutherian placenta.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  12. Article
  13. Article
  14. Article
  15. Bradykinin promotes migration and invasion of human immortalized trophoblasts.Reproductive biology and endocrinology : RB&E · 2011
    Article
  16. Challenges posed to the maternal circulation by pregnancy.Integrated blood pressure control · 2011
    Article
  17. Vasodilator factors in the systemic and local adaptations to pregnancy.Reproductive biology and endocrinology : RB&E · 2009
    Review
  18. Review
  19. Review
  20. Review
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 1 country.

A NanaevInstitut für Anatomie, RWTH Aachen, Wendlingweg 2, D-52057 Aachen, Germany.
K Chwalisz
H G Frank
G Kohnen
C Hegele-Hartung
P Kaufmann
RWTH Aachen University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The trophoblast invasion of uteroplacental arteries in the guinea pig has been studied by means of electron microscopy and immunohistochemisty. To identify trophoblast cells, smooth muscle cells, and endothelial cells, antibodies against cytokeratins, smooth muscle myosin, desmin, and vimentin were employed. Furthermore, the immunohistochemical expression patterns of nitric oxide synthase isoforms (eNOS, mNOS and bNOS) were studied and were compared with the enzyme histochemical staining for NADPH-diaphorase. Dilation of uteroplacental arteries begins prior to day 30, when trophoblast cells that coexpress endothelial and macrophage nitric oxide synthase can be found in the vicinity of the vessels and replace the surrounding peritoneal mesothelium. Trophoblast invasion of the arterial walls and the subsequent wall destruction are only secondary effects. Starting around day 50, the final steps of pregnancy-dependent vessel modifications involve intraarterial trophoblast adhesion to the endothelium and subsequent replacement of the endothelium by the trophoblast cells. These may centrifugally invade the vessel media eventually forming intraluminal plugs. These findings led us to the conclusion that in the guinea pig pregnancy-induced physiological dilation of the uteroplacental arteries is due to the effect of nitric oxide rather than being caused by trophoblast-induced media destruction.

Indexed as

AnimalsArteriesFemaleFluorescent Antibody TechniqueGuinea PigsHumansImmunoenzyme TechniquesMaleMicroscopy, Electron, ScanningNitric Oxide SynthasePlacental CirculationPregnancyTrophoblastsVasodilationNitric Oxide Synthase

Identifiers

PMID8581935
OpenAlexW1980586568

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.