Evidence map›Paper›PMID 18771998›Full record

ArticleAmerican journal of obstetrics and gynecology2008

Lipopolysaccharide stimulation of trophoblasts induces corticotropin-releasing hormone expression through MyD88.

Andy Uh, Richard C Nicholson, Gustavo V Gonzalez, Charles F Simmons, Adrian Gombart, Roger Smith, Ozlem Equils

Abstract read
In one paragraph

Article in American journal of obstetrics and gynecology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

9 citing papers in PubMed, 24 citations in OpenAlex.

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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

7 authors at 3 institutions in 2 countries.

Andy UhDivision of Pediatric Infectious Diseases, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
Richard C Nicholson
Gustavo V Gonzalez
Charles F Simmons
Adrian Gombart
Roger Smith
Ozlem Equils
Cedars-Sinai Medical Center · USHunter Medical Research Institute · AUJohn Hunter Hospital · AU

Funding

ZONA-FREE HAMSTER OVA ASSAY AS AN INDICATOR OF MALE FERTILITYM01RR000425 · NCRR · LUNDQUIST INSTITUTE FOR BIOMEDICAL INNOVATION AT HARBOR-UCLA MEDICAL CENTER · PI ANDERSON, GAIL V · 1985 to 2011
$74.2M
NCRR NIH HHS M01 RR000425NCRR NIH HHS M01-RR00425
6 · The paper itself

Abstract

objectiveWe hypothesized that intrauterine infection may lead to placental corticotrophin-releasing hormone (CRH) expression via Toll-like receptor signaling. STUDY

designTo test this hypothesis JEG3 cells were stimulated with lipopolysaccharide (LPS), chlamydial heat shock protein 60, and interleukin (IL)-1. CRH expression was assessed by reverse transcription polymerase chain reaction (RT-PCR). The signaling mechanisms that were involved were examined in transient transfection experiments with beta-galactosidase, CRH-luciferase, cyclic adenosine monophosphate (AMP) response element-luciferase, dominant-negative (DN)-myeloid differentiation primary response gene (MyD88) and DN-toll-IL-1-receptor domain containing adapter inducing interferon (TRIF) vectors. Luciferase activity was determined by luciferase assay. Beta-galactosidase assay was performed to determine transfection efficiency.

resultsLPS, chlamydial heat shock protein 60, and IL-1 stimulation led to CRH expression in the JEG3 cells. LPS-induced CRH expression was not due to the autocrine effect of LPS-induced IL-1 because the supernatant from LPS-conditioned JEG3 cells did not induce CRH expression in the naïve cells. DN-MyD88, but not DN-TRIF, blocked the LPS-induced CRH expression. The cAMP response element did not play a role in LPS-induced CRH expression.

conclusionToll-like receptor signaling 4 may induce placental CRH expression through MyD88.

Indexed as

Adaptor Proteins, Vesicular TransportAntigens, BacterialCells, CulturedChaperonin 60Corticotropin-Releasing HormoneFemaleHumansInterleukin-1betaLipopolysaccharidesLuciferasesMyeloid Differentiation Factor 88Obstetric Labor, PrematurePlacentaPregnancyReceptors, ImmunologicReverse Transcriptase Polymerase Chain ReactionAdaptor Proteins, Vesicular TransportAntigens, BacterialChaperonin 60Corticotropin-Releasing HormoneInterleukin-1betaLipopolysaccharidesLuciferasesMYD88 protein, humanMyeloid Differentiation Factor 88Receptors, ImmunologicTICAM1 protein, humanToll-Like Receptor 4

Identifiers

PMID18771998
PMCPMC2587489
OpenAlexW1966208854

What OpenQuestion holds

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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.