Evidence map›Paper›PMID 30776303›Full record

ArticleEndocrinology2019

Mice Missing Cnr1 and Cnr2 Show Implantation Defects.

Yingju Li, Fenghua Bian, Xiaofei Sun, Sudhansu K Dey

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

10 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Cannabinoid and planar cell polarity signaling converges to direct placentation.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  8. Review
  9. Article
  10. 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

4 authors at 1 institution in 1 country.

Yingju LiDivision of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
Fenghua BianDivision of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
Xiaofei SunDivision of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
Sudhansu K DeyDivision of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
Cincinnati Children's Hospital Medical Center · US

Funding

Molecular signaling in uterine receptivity to implantationR01HD068524 · NICHD · CINCINNATI CHILDRENS HOSP MED CTR · PI Xiaofei Sun · 2011 to 2026
$5.3M
Endocannabinoid Signaling During Early PregnancyR37DA006668 · NIDA · VANDERBILT UNIVERSITY · PI DEY, SUDHANSU K · 2003 to 2012
$3.8M
MARIJUANA EFFECTS ON EARLY PREGNANCYR01DA006668 · NIDA · UNIVERSITY OF KANSAS MEDICAL CENTER · PI DEY, SUDHANSU K · 1990 to 2019
$2.1M
NICHD NIH HHS R01 HD068524NIDA NIH HHS R01 DA006668NIDA NIH HHS R37 DA006668
6 · The paper itself

Abstract

Cannabinoid/endocannabinoid signaling is primarily mediated by cannabinoid receptor type 1 (CB1; encoded by Cnr1) and/or type 2 (CB2; encoded by Cnr2). Here, we show that Cnr1-/-Cnr2-/- mice are subfertile as a result of compromised implantation. Upon implantation, the epithelium is smooth and adhered to the blastocyst trophectoderm within the implantation chamber (crypt) in wild-type mice, whereas the epithelium in Cnr1-/-Cnr2-/- mice is ruffled, which compromises appropriate blastocyst-uterine interactions. The suboptimal implantation leads to higher incidence of pregnancy failure in Cnr1-/-Cnr2-/- mice. Histological analysis revealed heightened edema around the implantation chamber in these deleted females. With the use of a reporter mouse line, we observed that CB2 is present on endothelial cells of uterine blood vessels, and its absence leads to blood vessel leakage during implantation. These results suggest that appropriately regulated uterine edema is important to optimal implantation.

Indexed as

AnimalsEmbryo ImplantationFemaleInfertility, FemaleMiceMice, KnockoutReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2Signal TransductionUterusCNR1 protein, mouseCnr2 protein, mouseReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2

Identifiers

PMID30776303
PMCPMC6435011
OpenAlexW2924312265

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.