Evidence map›Paper›PMID 28835202›Full record

ArticleBMC microbiology2017

Upper and lower respiratory tract microbiota in horses: bacterial communities associated with health and mild asthma (inflammatory airway disease) and effects of dexamethasone.

Stephanie L Bond, Edouard Timsit, Matthew Workentine, Trevor Alexander, Renaud Léguillette

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
7.8field-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

44 citing papers in PubMed, 74 citations in OpenAlex.

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  15. The Microbiota and Equine Asthma: An Integrative View of the Gut-Lung Axis.Animals : an open access journal from MDPI · 2024
    Review
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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

5 authors at 2 institutions in 1 country.

Stephanie L BondFaculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.
Edouard TimsitFaculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada. eftimsit@ucalgary.ca.
Matthew WorkentineFaculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.
Trevor AlexanderLethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada.
Renaud LéguilletteFaculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada. rleguill@ucalgary.ca.ORCID http://orcid.org/0000-0003-0381-3640
University of Calgary · CAAgriculture and Agri-Food Canada · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe microbial composition of the equine respiratory tract, and differences due to mild equine asthma (also called Inflammatory Airway Disease (IAD)) have not been reported. The primary treatment for control of IAD in horses are corticosteroids. The objectives were to characterize the upper and lower respiratory tract microbiota associated with respiratory health and IAD, and to investigate the effects of dexamethasone on these bacterial communities using high throughput sequencing.

resultsThe respiratory microbiota of horses was dominated by four major phyla, Proteobacteria (43.85%), Actinobacteria (21.63%), Firmicutes (16.82%), and Bacteroidetes (13.24%). Fifty genera had a relative abundance > 0.1%, with Sphingomonas and Pantoea being the most abundant. The upper and lower respiratory tract microbiota differed in healthy horses, with a decrease in richness in the lower airways, and 2 OTUs that differed in abundance. There was a separation between bacterial communities in the lower respiratory tract of healthy and IAD horses; 6 OTUs in the tracheal community had different abundance with disease status, with Streptococcus being increased in IAD horses. Treatment with dexamethasone had an effect on the lower respiratory tract microbiota of both heathy and IAD horses, with 8 OTUs increasing in abundance (including Streptococcus) and 1 OTU decreasing.

conclusionsThe lower respiratory tract microbiota differed between healthy and IAD horses. Further research on the role of Streptococcus in IAD is warranted. Dexamethasone treatment affected the lower respiratory tract microbiota, which suggests that control of bacterial overgrowth in IAD horses treated with dexamethasone could be part of the treatment strategy.

Indexed as

AnimalsAsthmaBacteriaBiodiversityBronchoalveolar Lavage FluidDexamethasoneDNA, BacterialHorse DiseasesHorsesInflammationMetagenomicsMicrobial ConsortiaMicrobiotaRespiratory SystemDexamethasoneDNA, Bacterial16sRNABronchoalveolar lavageEquineMetagenomicNasopharyngeal swabTranstracheal wash

Identifiers

PMID28835202
PMCPMC5569571
OpenAlexW2750025813

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.