Evidence map›Paper›PMID 16061710›Full record

ArticleThorax2005

Genotypic variation in Pneumocystis jirovecii isolates in Britain.

R F Miller, A R Lindley, A Copas, H E Ambrose, R J O Davies, A E Wakefield

Open access · bronzeAbstract read
In one paragraph

Article in Thorax, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 51 citations in OpenAlex.

  1. Multilocus Genotyping ofJournal of fungi (Basel, Switzerland) · 2021
    Article
  2. Pneumocystis pneumonia in liver transplant recipients.American journal of translational research · 2021
    Article
  3. Circulating genotypes of Pneumocystis jirovecii and its clinical correlation in patients from a single tertiary center in India.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2017
    Article
  4. F1000Research · 2017
    Review
  5. Pneumocystis jirovecii Pneumonia in Rheumatoid Arthritis Patients: Risks and Prophylaxis Recommendations.Clinical medicine insights. Circulatory, respiratory and pulmonary medicine · 2015
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Cavitary pulmonary disease.Clinical microbiology reviews · 2008
    Review
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

6 authors at 1 institution in 1 country.

R F MillerCentre for Sexual Health and HIV Research, Department of Primary Care and Population Sciences, Royal Free and University College Medical School, University College London, Mortimer Market Centre, London WC1E 6AU, UK. rmiller@gum.ucl.ac.uk
A R Lindley
A Copas
H E Ambrose
R J O Davies
A E Wakefield
The Royal Free Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundPneumocystis jirovecii is the cause of Pneumocystis pneumonia (PCP) in immunosuppressed humans. Asymptomatic colonisation with P jirovecii may occur in patients with minor immunosuppression or chronic lung disease. The aim of this study was to describe the molecular epidemiology of P jirovecii in Britain over a period of 12.5 years.

methodsBetween January 1989 and July 2001 161 samples of P jirovecii were obtained from patients with PCP (n = 119), patients colonised by P jirovecii (n = 35), and from air spora (n = 6). Genotyping of samples was performed at the mitochondrial large subunit rRNA (mt LSU rRNA).

resultsGenotype 1 (38%) was the most frequently identified genotype: genotypes 2 (26.6%), 3 (20.3%), and 4 (5%) were less common. Mixed infection (more than one genotype) was identified in 10% of samples. While genotype 1 was the most frequently detected type in both patients with PCP and those colonised by P jirovecii (38% and 42%, respectively), these groups differed in the relatively lower rate of detection of genotype 4 (2% v 17%) and the higher detection of mixed infection in those with PCP (13% v 3%). Detection of specific genotypes of P jirovecii was associated with the patient's place of residence (p = 0.02). There was no association between specific genotypes and severity of PCP as measured by arterial oxygen tension (p = 0.3).

conclusionsThe evidence of clustering of specific genotypes with patient's postcode of residence is consistent with the hypothesis of person to person transmission of P jirovecii via the airborne route. The lack of association between specific mt LSU rRNA genotypes and severity of PCP suggests that this locus is not implicated in the virulence of the organism.

Indexed as

AdultBronchoalveolar Lavage FluidChi-Square DistributionFemaleHIV InfectionsHumansImmunocompromised HostMaleNucleic Acid Amplification TechniquesPneumocystis cariniiPneumonia, PneumocystisPolymorphism, GeneticUnited Kingdom

Identifiers

PMID16061710
PMCPMC1747490
OpenAlexW2154481075

What OpenQuestion holds

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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.