Evidence map›Paper›PMID 26692876›Full record

ArticleKorean journal of pediatrics2015

Low levels of tissue inhibitor of metalloproteinase-2 at birth may be associated with subsequent development of bronchopulmonary dysplasia in preterm infants.

Choae Lee, Jaewoo An, Ji Hee Kim, Eun Sun Kim, Soo Hyun Kim, Yeon Kyung Cho, Dong Hyun Cha, Man Yong Han, Kyu Hyung Lee, Youn Ho Sheen

Open access · diamondAbstract read
In one paragraph

Article in Korean journal of pediatrics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 12 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

10 authors at 3 institutions in 1 country.

Choae LeeGraduate School, CHA University, Pocheon, Korea.
Jaewoo AnDepartment of Pediatrics, CHA University Bundang Medical Center, Seongnam, Korea.
Ji Hee KimDepartment of Pediatrics, CHA University Gangnam Medical Center, Seoul, Korea. ; CHA University School of Medicine, Pocheon, Korea.
Eun Sun KimDepartment of Pediatrics, Kangwon National University School of Medicine, Chuncheon, Korea.
Soo Hyun KimCHA University School of Medicine, Pocheon, Korea. ; Department of Obstetrics and Gynecology, CHA University Gangnam Medical Center, Seoul, Korea.
Yeon Kyung ChoCHA University School of Medicine, Pocheon, Korea. ; Department of Obstetrics and Gynecology, CHA University Gangnam Medical Center, Seoul, Korea.
Dong Hyun ChaCHA University School of Medicine, Pocheon, Korea. ; Department of Obstetrics and Gynecology, CHA University Gangnam Medical Center, Seoul, Korea.
Man Yong HanDepartment of Pediatrics, CHA University Bundang Medical Center, Seongnam, Korea. ; CHA University School of Medicine, Pocheon, Korea.
Kyu Hyung LeeDepartment of Pediatrics, CHA University Bundang Medical Center, Seongnam, Korea. ; CHA University School of Medicine, Pocheon, Korea.
Youn Ho SheenDepartment of Pediatrics, CHA University Gangnam Medical Center, Seoul, Korea. ; CHA University School of Medicine, Pocheon, Korea.
CHA University · KRCHA University Bundang Medical Center · KRKangwon National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBronchopulmonary dysplasia (BPD) is characterized by inflammation with proteolytic damage to the lung extracellular matrix. The results from previous studies are inconsistent regarding the role of proteinases and antiproteinases in the development of BPD. The aim of the present study was to investigate whether matrix metalloproteinase (MMP)-8, MMP-9, tissue inhibitor of metalloproteinase (TIMP)-2, and TIMP-1 levels in the serum of preterm infants at birth are related to the development of BPD.

methodsSerum was collected from 62 preterm infants at birth and analyzed for MMP-8, MMP-9, TIMP-2, and TIMP-1 by using enzyme-linked immunosorbent assay. MMPs and TIMPs were compared in BPD (n=24) and no BPD groups (n=38). Clinical predictors of BPD (sex, birth weight, gestational age, etc.) were assessed for both groups. The association between predictors and outcome, BPD, was assessed by using multivariate logistic regression.

resultsSex, birth weight, and mean gestational age were similar between the groups. BPD preterm infants had significantly lower TIMP-2 levels at birth compared with no BPD preterm infants (138.1±23.0 ng/mL vs. 171.8±44.1 ng/mL, P=0.027). No significant difference was observed in MMP-8, MMP-9, and TIMP-1 levels between the two groups. Multivariate logistic regression analysis indicated that the TIMP-2 levels were predictive of BPD after adjusting for sex, birth weight, gestational age, proteinuric preeclampsia, and intraventricular hemorrhage (β=-0.063, P=0.041).

conclusionLow TIMP-2 serum levels at birth may be associated with the subsequent development of BPD in preterm infants.

Indexed as

Bronchopulmonary dysplasiaMatrix metalloproteinasesPremature infantsTissue inhibitor of metalloproteinase

Identifiers

PMID26692876
PMCPMC4675921
OpenAlexW2275464580

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.