Evidence map›Paper›PMID 37250794›Full record

ArticleiScience2023

The upper and lower respiratory tract microbiome in severe aspiration pneumonia.

Georgios D Kitsios, Vi D Nguyen, Khaled Sayed, Nameer Al-Yousif, Caitlin Schaefer, Faraaz A Shah, William Bain, Haopu Yang, Adam Fitch, Kelvin Li and 13 more

Open access · goldAbstract read
In one paragraph

Article in iScience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

22 citing papers in PubMed, 23 citations in OpenAlex.

  1. Microbiome Profiling Reveals Prognostic Heterogeneity inmedRxiv : the preprint server for health sciences · 2026
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  7. Functional CFTR may be required for Prevotella melaninogenica regulation of epithelial cell defense against Staphylococcus aureus.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2026
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  12. Respiratory Microbiome of Carbapenem-ResistantPathogens (Basel, Switzerland) · 2025
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  17. Inconsistencies in the Indian Guidelines for the Prescription of Antibiotics for Critically Ill Patients.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2024
    Article
  18. Article
  19. Review
  20. Routine Metagenomics Service for ICU Patients with Respiratory Infection.American journal of respiratory and critical care medicine · 2024
    Article
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

23 authors at 7 institutions in 2 countries.

Georgios D KitsiosDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Vi D NguyenUniversity of Pittsburgh School of Medicine, Pittsburgh, PA15213, USA.
Khaled SayedUniversity of PittsburghDepartment of Computational & Systems Biology, Pittsburgh, PA15213, USA.
Nameer Al-YousifUniversity of Pittsburgh Medical Center Mercy, Department of Medicine, Pittsburgh, PA15219, USA.
Caitlin SchaeferDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Faraaz A ShahDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
William BainDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Haopu YangUniversity of Pittsburgh School of Medicine, Pittsburgh, PA15213, USA.
Adam FitchCenter for Medicine and the Microbiome, University of Pittsburgh, Pittsburgh, PA15213, USA.
Kelvin LiCenter for Medicine and the Microbiome, University of Pittsburgh, Pittsburgh, PA15213, USA.
Xiaohong WangDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Shulin QinDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Heather GentryDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Yingze ZhangDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Jack VaronDivision of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA02115, USA.
Antonio Arciniegas RubioDivision of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA02115, USA.
Joshua A EnglertDivision of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, OH43210, USA.
Rebecca M BaronDivision of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA02115, USA.
Janet S LeeDivision of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St. Louis, MO63110, USA.
Barbara MethéDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Panayiotis V BenosDepartment of Epidemiology, University of Florida, Gainesville, FL32611, USA.
Alison MorrisDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
Bryan J McVerryDivision of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA15213, USA.
University of Pittsburgh · USBrigham and Women's Hospital · USUniversity of Pittsburgh Medical Center · USThe Ohio State University Wexner Medical Center · USUniversity of California, Los Angeles · USUniversity of Florida · USWashington University in St. Louis · US

Funding

Regulation of Cardiolin Byosynthesis in Epithelial InjuryP01HL114453 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MALLAMPALLI, RAMA K · 2014 to 2023
$21.3M
Mechanisms of host protection against pathogen-secreted proteases in acute lung injuryR01HL136143 · NHLBI · WASHINGTON UNIVERSITY · PI LEE, JANET SOJUNG · 2017 to 2024
$4.4M
Patient-Oriented Research in Acute Lung Injury and Host Defense in the ICUK24HL143285 · NHLBI · WASHINGTON UNIVERSITY · PI LEE, JANET SOJUNG · 2019 to 2023
$579k
Microbial Determinants of Acute Respiratory Distress Syndrome Severity (MiDAS)R03HL162655 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KITSIOS, GEORGIOS · 2022 to 2023
$159k
Platelet factors attenuate alveolar injury during severe pneumoniaIK2BX004886 · VA · VETERANS HEALTH ADMINISTRATION · PI BAIN, WILLIAM G · 2020 to 2024
–
BLRD VA IK2 BX004886NHLBI NIH HHS K24 HL143285NHLBI NIH HHS P01 HL114453NHLBI NIH HHS R01 HL136143NHLBI NIH HHS R03 HL162655
6 · The paper itself

Abstract

Uncertainty persists whether anaerobic bacteria represent important pathogens in aspiration pneumonia. In a nested case-control study of mechanically ventilated patients classified as macro-aspiration pneumonia (MAsP, n = 56), non-macro-aspiration pneumonia (NonMAsP, n = 91), and uninfected controls (n = 11), we profiled upper (URT) and lower respiratory tract (LRT) microbiota with bacterial 16S rRNA gene sequencing, measured plasma host-response biomarkers, analyzed bacterial communities by diversity and oxygen requirements, and performed unsupervised clustering with Dirichlet Multinomial Models (DMM). MAsP and NonMAsP patients had indistinguishable microbiota profiles by alpha diversity and oxygen requirements with similar host-response profiles and 60-day survival. Unsupervised DMM clusters revealed distinct bacterial clusters in the URT and LRT, with low-diversity clusters enriched for facultative anaerobes and typical pathogens, associated with higher plasma levels of SPD and sCD14 and worse 60-day survival. The predictive inter-patient variability in these bacterial profiles highlights the importance of microbiome study in patient sub-phenotyping and precision medicine approaches for severe pneumonia.

Indexed as

Clinical findingMicrobiomeRespiratory medicine

Identifiers

PMID37250794
PMCPMC10212968
OpenAlexW4372311246

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.