Evidence map›Paper›PMID 33263620›Full record

ArticleClinics (Sao Paulo, Brazil)2020

Levels of matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1 are related to cardiopulmonary injury in fetal inflammatory response syndrome.

Yiwei Yan, Lian Jiang, Mei Li, Huifen Zhang, Ying Shen, Wenhao Zhang, Wenting Zhang

Open access · goldAbstract read
In one paragraph

Article in Clinics (Sao Paulo, Brazil), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.1field-weighted citation impact, top 44% 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

1 citing paper in PubMed, 6 citations in OpenAlex.

  1. 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

7 authors at 1 institution in 1 country.

Yiwei YanDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0003-3794-1106
Lian JiangDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0003-0000-6851
Mei LiDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0002-6302-7361
Huifen ZhangDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0003-2097-4294
Ying ShenDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0002-5155-8181
Wenhao ZhangDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0003-4481-6522
Wenting ZhangDepartment of Pediatrics, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.ORCID 0000-0002-5787-5444
Hebei Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate the diagnostic value of matrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinase-1 (TIMP-1), and the MMP-9/TIMP-1 ratio in fetal inflammatory response syndrome (FIRS), and determine a possible association with the incidence of bronchopulmonary dysplasia (BPD) and myocardial injury.

methodsOverall, 61 cases of preterm infants with FIRS were divided into the FIRS group 1 (≤32 weeks) and FIRS group 2 (32 to 37 weeks). Similarly, 57 cases of normal preterm infants were divided into Control group 1 and Control group 2. Levels of interleukin-6 (IL-6), MMP-9, and TIMP-1 were detected by enzyme-linked immunosorbent assay. Spearman's linear correlation was used to analyze the relationship between dependent variables. Pathological changes were examined by hematoxylin and eosin (HE) staining and in amniotic fluid smears.

resultsLevels of IL-6, MMP-9, and TIMP-1, and the MMP-9/TIMP-1 ratio were significantly higher in the FIRS group than in the Control groups. IL-6 was positively correlated with MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio. Areas under the curve (AUC) of MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio were 0.92, 0.90, and 0.95, respectively. HE staining and amniotic fluid smears showed the aggregation of inflammatory cells. MMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio were closely related to the incidence of BPD (≤32 weeks) and myocardial injury (<37 weeks) in preterm infants.

conclusionMMP-9, TIMP-1, and the MMP-9/TIMP-1 ratio revealed a certain diagnostic value for FIRS; combined with gestational age, these parameters were effective for predicting cardiopulmonary injury.

Indexed as

BiomarkersBronchopulmonary DysplasiaTissue Inhibitor of Metalloproteinase-1Gestational AgeHumansInfantInfant, NewbornInfant, PrematureMatrix Metalloproteinase 9BiomarkersMatrix Metalloproteinase 9Tissue Inhibitor of Metalloproteinase-1

Identifiers

PMID33263620
PMCPMC7654901
OpenAlexW3107049352

What OpenQuestion holds

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LicenceCC BY
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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.