Evidence map›Paper›PMID 28705464›Full record

Observational studyEBioMedicine2017

Diversity of Pneumocystis jirovecii Across Europe: A Multicentre Observational Study.

Alexandre Alanio, Maud Gits-Muselli, Nicolas Guigue, Marie Desnos-Ollivier, Enrique J Calderon, David Di Cave, Damien Dupont, Axel Hamprecht, Philippe M Hauser, Jannik Helweg-Larsen and 10 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in EBioMedicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Retracing the evolution ofMicrobiology and molecular biology reviews : MMBR · 2024
    Review
  2. Review
  3. Observational
  4. Trends in the Epidemiology ofJournal of fungi (Basel, Switzerland) · 2023
    Review
  5. Article
  6. Targeted NGS-Based Analysis ofJournal of fungi (Basel, Switzerland) · 2022
    Article
  7. Review
  8. An etiology of ground - glass images during COVID-19:SAGE open medical case reports · 2022
    Article
  9. Article
  10. Selection ofJournal of fungi (Basel, Switzerland) · 2021
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

20 authors.

Alexandre AlanioLaboratoire de Parasitologie-Mycologie, AP-HP, Groupe Hospitalier Saint-Louis-Lariboisière-Fernand-Widal, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Institut Pasteur, CNRS, Unité de Mycologie Moléculaire, Centre National de Référence Mycoses Invasives et Antifongiques, URA3012, Paris, France. Electronic address: alexandre.alanio@aphp.fr.
Maud Gits-MuselliLaboratoire de Parasitologie-Mycologie, AP-HP, Groupe Hospitalier Saint-Louis-Lariboisière-Fernand-Widal, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
Nicolas GuigueLaboratoire de Parasitologie-Mycologie, AP-HP, Groupe Hospitalier Saint-Louis-Lariboisière-Fernand-Widal, Paris, France.
Marie Desnos-OllivierInstitut Pasteur, CNRS, Unité de Mycologie Moléculaire, Centre National de Référence Mycoses Invasives et Antifongiques, URA3012, Paris, France.
Enrique J CalderonCIBER de Epidemiología y Salud Pública, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío, CSIC, Universidad de Sevilla, Spain.
David Di CaveDepartment of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Italy.
Damien DupontHospices Civils de Lyon, Institut des Agents Infectieux, Parasitologie Mycologie, Hôpital de la Croix-Rousse, Integrative Physiology of the Brain Arousal Systems, Centre de Recherche en Neurosciences de Lyon, INSERM U1028-CNRS UMR 5292, Faculté de Médecine, Université Claude Bernard Lyon 1, Lyon F-69000, France.
Axel HamprechtInstitute for Medical Microbiology, Immunology and Hygiene, University Hospital Cologne, Germany.
Philippe M HauserInstitute of Microbiology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland.
Jannik Helweg-LarsenDepartment of Infectious Diseases, Rigshospitalet-Copenhagen University Hospital, Copenhagen, Denmark.
Marta KiciaDepartment of Biology & Medical Parasitology, Wroclaw Medical University, Wroclaw, Poland.
Katrien LagrouDepartment of Microbiology and Immunology, Catholic University Leuven, Leuven, Belgium and National Reference Centre for Mycosis, Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium.
Martina LengerovaDepartment of Internal Medicine - Hematology and Oncology, University Hospital Brno, Brno, Czech Republic.
Olga MatosTB, HIV and Opportunistic Diseases and Pathogens, Global Health and Tropical Medicine, Lisboa, Portugal; Instituto de Higiene e Medicina Tropical, Universidade NOVA de Lisboa, Lisboa, Portugal.
Willem J G MelchersDepartment of medical microbiology, Radboud University Medical Centre, Nijmegen, The Netherlands.
Florent MorioParasitology and Mycology laboratory, Nantes University Hospital, Nantes, France.
Gilles NevezUniversity of Brest, GEIHP EA 3142, Laboratory of Parasitology and Mycology, Brest University Hospital, Brest, France.
Anne TotetUniversity of Picardy-Jules Verne, EA 4285 UMR-I 01 INERIS, Department of Parasitology and Mycology, Amiens University Hospital, Amiens, France.
Lewis P WhitePublic Health Wales, Microbiology Cardiff, UHW, Heath Park, Cardiff, UK.
Stéphane BretagneLaboratoire de Parasitologie-Mycologie, AP-HP, Groupe Hospitalier Saint-Louis-Lariboisière-Fernand-Widal, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Institut Pasteur, CNRS, Unité de Mycologie Moléculaire, Centre National de Référence Mycoses Invasives et Antifongiques, URA3012, Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pneumocystis jirovecii is an airborne human-specific ascomycetous fungus responsible for Pneumocystis pneumonia (PCP) in immunocompromised patients, affecting >500,000 patients per year (www.gaffi.org). The understanding of its epidemiology is limited by the lack of standardised culture. Recent genotyping data suggests a limited genetic diversity of P. jirovecii. The objective of the study was to assess the diversity of P. jirovecii across European hospitals and analyse P. jirovecii diversity in respect to clinical data obtained from the patients. Genotyping was performed using six already validated short tandem repeat (STR) markers on 249 samples (median: 17 per centre interquartile range [11-20]) from PCP patients of 16 European centres. Mixtures of STR markers (i.e., ≥2 alleles for ≥1 locus) were detected in 67.6% (interquartile range [61.4; 76.5]) of the samples. Mixture was significantly associated with the underlying disease of the patient, with an increased proportion in HIV patients (78.3%) and a decreased proportion in renal transplant recipients (33.3%) (p<0.001). The distribution of the alleles was significantly different (p<0.001) according to the centres in three out of six markers. In analysable samples, 201 combinations were observed corresponding to 137 genotypes: 116 genotypes were country-specific; 12 in two; six in three; and two in four and one in five countries. Nine genotypes were recorded more than once in a given country. Genotype 123 (Gt123) was significantly associated with France (14/15, p<0.001) and Gt16 with Belgium (5/5, p<0.001). More specifically, Gt123 was observed mainly in France (14/15/16 patients) and in renal transplant patient (13/15). Our study showed the wide population diversity across Europe, with evidence of local clusters of patients harbouring a given genotype. These data suggest a specific association between genotype and underlying disease, with evidence of a different natural history of PCP in HIV patients and renal transplant recipients.

Indexed as

AdultAgedDNA, FungalEuropeFemaleGenetic VariationGenotyping TechniquesHumansMaleMicrosatellite RepeatsMiddle AgedPhylogenyPhylogeographyPneumocystis cariniiPneumonia, PneumocystisDNA, FungalEuropeGenotypingMicrosatellitesMixed infectionMLS typingPneumocystis jiroveciiTransmission

Identifiers

PMID28705464
PMCPMC5552205

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.