Evidence map›Paper›PMID 29362947›Full record

ArticleMedical molecular morphology2018

Morphological characterization of pulmonary microvascular disease in bronchopulmonary dysplasia caused by hyperoxia in newborn mice.

Hidehiko Nakanishi, Shunichi Morikawa, Shuji Kitahara, Asuka Yoshii, Atsushi Uchiyama, Satoshi Kusuda, Taichi Ezaki

Abstract read
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In one paragraph

Article in Medical molecular morphology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

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  12. Bronchopulmonary Dysplasia: An Update on Experimental Therapeutics.European Medical Journal (Chelmsford, England) · 2019
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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 1 institution in 2 countries.

Hidehiko NakanishiDepartment of Neonatology, Maternal and Perinatal Center Neonatal Division, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan. hidehiko@qf6.so-net.ne.jp.
Shunichi MorikawaDepartment of Anatomy and Developmental Biology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
Shuji KitaharaDepartment of Anatomy and Developmental Biology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
Asuka YoshiiDepartment of Anatomy and Developmental Biology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
Atsushi UchiyamaDepartment of Neonatology, Maternal and Perinatal Center Neonatal Division, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
Satoshi KusudaDepartment of Neonatology, Maternal and Perinatal Center Neonatal Division, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
Taichi EzakiDepartment of Anatomy and Developmental Biology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
Tokyo Women's Medical University · JP

Funding

KAKENHI 16K10111
6 · The paper itself

Abstract

purposePulmonary microvascular injury is associated with the pathogenesis of bronchopulmonary dysplasia (BPD). To characterize the mechanisms of pulmonary vascular disease resulting from BPD, we studied the ultrastructural changes affecting pulmonary microvasculature.

methodsNewborn ICR mice were exposed to 85% hyperoxia or normoxia for 14 days, and then normal air replacement conditions for the following 7 days. At postnatal day (P)14 and P21, lungs were harvested for ultrastructural examination and assessment of pulmonary hypertension.

resultsThe ultrastructure of pulmonary microvasculature in the hyperoxia-exposed lungs revealed a collapsed capillary lumen. This was due to the abnormal morphology of endothelial cells (ECs) characterized by heterogeneously thick cytoplasm. Compared to normal air controls, the specimens displayed also remarkably thick blood-air barriers (BABs), most of which were occupied by EC layer components. Structural changes were accompanied by increased pulmonary artery medial thickness and right ventricular hypertrophy (RVH). Moreover, abnormalities in ECs persisted even after exposure to 7 days of normal air replacement conditions. Results were confirmed by morphometric quantification.

conclusionOur results suggest that the abnormal morphology of capillary ECs and thick BABs correlates with pulmonary artery remodeling and RVH. These ultrastructural changes might represent possible mechanisms of secondary pulmonary hypertension in BPD.

Indexed as

AnimalsAnimals, NewbornBronchopulmonary DysplasiaDisease Models, AnimalEndothelial CellsEndothelium, VascularFemaleHumansHyperoxiaHypertension, PulmonaryHypertrophy, Right VentricularLungMiceMice, Inbred ICRMicroscopy, Electron, TransmissionMicrovesselsBronchopulmonary dysplasiaHyperoxiaNewbornPulmonary hypertensionPulmonary microvascular disease

Identifiers

PMID29362947
OpenAlexW2789103920

What OpenQuestion holds

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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.