Evidence map›Paper›PMID 31644312›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2020

Effects of hyperoxia on alveolar and pulmonary vascular development in germ-free mice.

Kalsang Dolma, Amelia E Freeman, Gabriel Rezonzew, Gregory A Payne, Xin Xu, Tamas Jilling, J Edwin Blalock, Amit Gaggar, Namasivayam Ambalavanan, Charitharth Vivek Lal

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

34 citing papers in PubMed, 58 citations in OpenAlex.

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  17. Microbial-induced Redox Imbalance in the Neonatal Lung Is Ameliorated by Live Biotherapeutics.American journal of respiratory cell and molecular biology · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Kalsang DolmaDivision of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama.
Amelia E FreemanDivision of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama.
Gabriel RezonzewDivision of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama.
Gregory A PayneProgram in Protease and Matrix Biology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.
Xin XuProgram in Protease and Matrix Biology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.
Tamas JillingDivision of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama.ORCID 0000-0002-6200-3851
J Edwin BlalockProgram in Protease and Matrix Biology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.
Amit GaggarProgram in Protease and Matrix Biology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.
Namasivayam AmbalavananDivision of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama.
Charitharth Vivek LalDivision of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama.ORCID 0000-0001-9071-4047
University of Alabama at Birmingham · US

Funding

XRAY CRYSTALLOGRAPHYP30CA013148 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Robert S Welner · 1985 to 2026
$165.9M
A Novel Exosomal Inflammatory PathwayR35HL135710 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BLALOCK, J EDWIN · 2017 to 2023
$6.8M
Mechanisms of Pulmonary Microbiota-Induced Inflammation and Vascular Dysfunction in Neonatal Lung InjuryK08HL141652 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI LAL, CHARITHARTH VIVEK · 2019 to 2023
$838k
NCI NIH HHS P30 CA013148NHLBI NIH HHS K08 HL141652NHLBI NIH HHS R35 HL135710
6 · The paper itself

Abstract

Airway microbial dysbiosis is associated with subsequent bronchopulmonary dysplasia (BPD) development in very preterm infants. However, the relationship of airway microbiome in normal pulmonary development has not been defined. To better understand the role of the airway microbiome, we compared normal and abnormal alveolar and pulmonary vascular development in mice with or without a microbiome. We hypothesized that the lungs of germ-free (GF) mice would have an exaggerated phenotypic response to hyperoxia compared with non-germ-free (NGF) mice. With the use of a novel gnotobiotic hyperoxia chamber, GF and NGF mice were exposed to either normoxia or hyperoxia. Alveolar morphometry, pulmonary mechanics, echocardiograms, inflammatory markers, and measures of pulmonary hypertension were studied. GF and NGF mice in normoxia showed no difference, whereas GF mice in hyperoxia showed protected lung structure and mechanics and decreased markers of inflammation compared with NGF mice. We speculate that an increase in abundance of pathogenic bacteria in NGF mice may play a role in BPD pathogenesis by regulating the proinflammatory signaling and neutrophilic inflammation in lungs. Manipulation of the airway microbiome may be a potential therapeutic intervention in BPD and other lung diseases.

Indexed as

Germ-Free LifeAnimalsAnimals, NewbornBiomechanical PhenomenaBlood PressureDisease Models, AnimalHeart VentriclesHyperoxiaInflammationMiceMice, Inbred C57BLMicrovesselsPulmonary AlveoliSystolebronchopulmonary dysplasiagerm freegnotobiotichyperoxialung microbiome

Identifiers

PMID31644312
PMCPMC7052667
OpenAlexW2982273827

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.