Evidence map›Paper›PMID 33100071›Full record

ArticleThe Journal of international medical research2020

Toll-like receptor 2/4 inhibitors can reduce preterm birth in mice.

Xu Jing, Chen Min, Liu Qi Yun, Hu Shun Qin, Li Li Rui, Li Jia, Ma Run Mei

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in The Journal of international medical research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 34% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Review
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Xu JingFirst Affiliated Hospital of Kunming Medical University, Kunming, China.
Chen MinThird Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Liu Qi YunFirst Affiliated Hospital of Kunming Medical University, Kunming, China.
Hu Shun QinFirst Affiliated Hospital of Kunming Medical University, Kunming, China.
Li Li RuiFirst Affiliated Hospital of Kunming Medical University, Kunming, China.
Li JiaFirst Affiliated Hospital of Kunming Medical University, Kunming, China.
Ma Run MeiFirst Affiliated Hospital of Kunming Medical University, Kunming, China.ORCID https://orcid.org/0000-0002-1248-7106
Kunming Medical University · CNThird Affiliated Hospital of Guangzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesPreterm birth (PTB) occurs in 5% to 18% of newborns. However, the underlying inflammatory mechanisms have not been elucidated.

methodsWe established a mouse model of infection-associated PTB. Physical signs in pregnant mice with or without lipopolysaccharide (LPS) treatment were observed, and the frequencies of Toll-like receptor (TLR)2- and TLR4-positive CD11b+ cells were analyzed. Cytokine levels in plasma and pathological changes were assessed following LPS treatment. A rescue experiment was used to probe potential immunologic mechanisms underlying PTB.

resultsLymphocyte infiltration could be observed in the placentas of mice following intrauterine injection with LPS. The percentage of inflammatory cells decreased 12 hours after treatment. Moreover, TLR2 and TLR4 expression in peripheral blood cells was significantly increased 4 hours after intraperitoneal injection of LPS. Peak TLR2 and TLR4 expression in peripheral blood cells occurred 8 hours post-treatment. TLR4 and TLR-2/4 inhibitors reduced levels of interleukin-10, interferon-γ, and tumor necrosis factor-α in peripheral blood and delayed PTB.

conclusionsTLR2 and TLR4 inhibition could play important roles in PTB.

Indexed as

Premature BirthToll-Like Receptor 2AnimalsFemaleLipopolysaccharidesMicePregnancyToll-Like Receptor 4Tumor Necrosis Factor-alphaLipopolysaccharidesToll-Like Receptor 2Toll-Like Receptor 4Tumor Necrosis Factor-alphainterleukin-10lipopolysaccharidepreterm birthToll-like receptor2Toll-like receptor4tumor necrosis factor-α

Identifiers

PMID33100071
PMCPMC7604950
OpenAlexW3094276843

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.