Evidence map›Paper›PMID 23071640›Full record

ArticlePloS one2012

Upper airways microbiota in antibiotic-naïve wheezing and healthy infants from the tropics of rural Ecuador.

Paul Andres Cardenas, Philip J Cooper, Michael J Cox, Martha Chico, Carlos Arias, Miriam F Moffatt, William Osmond Cookson

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
13.8field-weighted citation impact, top 1% 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

56 citing papers in PubMed, 95 citations in OpenAlex.

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  10. Early Origins of Chronic Obstructive Pulmonary Disease: Prenatal and Early Life Risk Factors.International journal of environmental research and public health · 2023
    Review
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  15. A Pandemic Lesson for Global Lung Diseases: Exacerbations Are Preventable.American journal of respiratory and critical care medicine · 2022
    Review
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  18. Infant wheezing and prenatal antibiotic exposure and mode of delivery: a prospective birth cohort study.The Journal of asthma : official journal of the Association for the Care of Asthma · 2021
    Article
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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 4 institutions in 2 countries.

Paul Andres CardenasNational Heart & Lung Institute, Imperial College London, United Kingdom.
Philip J Cooper
Michael J Cox
Martha Chico
Carlos Arias
Miriam F Moffatt
William Osmond Cookson
Imperial College London · GBFundación Para La Investigación Y Gestión En Servicios de Salud · ECLiverpool School of Tropical Medicine · GBUniversidad San Francisco de Quito · EC

Funding

Wellcome Trust 088862Wellcome Trust 088862/Z/09/ZWellcome Trust 097117
6 · The paper itself

Abstract

backgroundObservations that the airway microbiome is disturbed in asthma may be confounded by the widespread use of antibiotics and inhaled steroids. We have therefore examined the oropharyngeal microbiome in early onset wheezing infants from a rural area of tropical Ecuador where antibiotic usage is minimal and glucocorticoid usage is absent. MATERIALS AND

methodsWe performed pyrosequencing of amplicons of the polymorphic bacterial 16S rRNA gene from oropharyngeal samples from 24 infants with non-infectious early onset wheezing and 24 healthy controls (average age 10.2 months). We analyzed microbial community structure and differences between cases and controls by QIIME software.

resultsWe obtained 76,627 high quality sequences classified into 182 operational taxonomic units (OTUs). Firmicutes was the most common and diverse phylum (71.22% of sequences) with Streptococcus being the most common genus (49.72%). Known pathogens were found significantly more often in cases of infantile wheeze compared to controls, exemplified by Haemophilus spp. (OR=2.12, 95% Confidence Interval (CI) 1.82-2.47; P=5.46×10(-23)) and Staphylococcus spp. (OR=124.1, 95%CI 59.0-261.2; P=1.87×10(-241)). Other OTUs were less common in cases than controls, notably Veillonella spp. (OR=0.59, 95%CI=0.56-0.62; P=8.06×10(-86)). DISCUSSION: The airway microbiota appeared to contain many more Streptococci than found in Western Europe and the USA. Comparisons between healthy and wheezing infants revealed a significant difference in several bacterial phylotypes that were not confounded by antibiotics or use of inhaled steroids. The increased prevalence of pathogens such as Haemophilus and Staphylococcus spp. in cases may contribute to wheezing illnesses in this age group.

Indexed as

BacteriaCase-Control StudiesCohort StudiesDNA, BacterialEcuadorFemaleGenetic VariationHaemophilusHumansInfantMaleMetagenomeOropharynxPhylogenyRespiratory SoundsRNA, Ribosomal, 16SDNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID23071640
PMCPMC3465279
OpenAlexW2021668554

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.