Evidence map›Paper›PMID 10699016›Full record

ArticleJournal of clinical microbiology2000

Species identification and subtyping of Ureaplasma parvum and Ureaplasma urealyticum using PCR-based assays.

F Kong, Z Ma, G James, S Gordon, G L Gilbert

Abstract read
In one paragraph

Article in Journal of clinical microbiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 2 pooled it
–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

69 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
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  12. Occurrence of urogenital mycoplasmas in men with the common genitourinary diseases.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2021
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Rare case ofBMJ case reports · 2020
    Review
  18. Prevalence of urogenital mycoplasmas in women with systemic lupus erythematosus (SLE): preliminary study.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    Article
  19. GrpE Immunization Protects AgainstFrontiers in immunology · 2020
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  20. Detection ofInfectious diseases in obstetrics and gynecology · 2020
    Article

9 more citing papers are in PubMed but not listed here.

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.

F KongCentre for Infectious Diseases and Microbiology, Institute of Clinical Pathology and Medical Research, Westmead, New South Wales, Australia.
Z Ma
G James
S Gordon
G L Gilbert

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is good evidence that the organism currently known as Ureaplasma urealyticum should be divided into two species-U. parvum (previously U. urealyticum biovar 1) and U. urealyticum (previously U. urealyticum biovar 2). In this study, we designed a series of primers, targeting the 16S rRNA gene and 16S rRNA-23S rRNA intergenic spacer regions, the urease gene subunits, and the 5' ends of the multiple-banded antigen (MBA) genes, to identify and subtype these Ureaplasma species. All of the species-specific primer pairs could distinguish the two species, but only subtype-specific primer pairs targeting the MBA genes could distinguish subtypes within each species. U. parvum was separated into three subtypes, represented by serovars 1, 3/14, and 6. U. urealyticum was also separated into three subtypes by PCR and/or direct sequencing. Subtype 1 consisted of serovars 2, 5, 8, and 9; subtype 2 contained serovars 4, 10, 12, and 13; and subtype 3 contained serovars 7 and 11. A selection of primer pairs was used to identify and subtype 78 clinical ureaplasma isolates from vaginal swabs of pregnant women and to identify and subtype ureaplasmas directly in 185 vaginal swabs in which they had been previously detected. U. parvum was identified in 228 (87%) of 263 isolates or specimens, and U. urealyticum was identified in 50 (19%) (both were present in 6%). Serovars 3/14 (48%) and 1 (43%) were most common among U. parvum isolates, and subtypes 2 (62%) and 1 (34%) were most common among U. urealyticum isolates. This new PCR-based typing system will facilitate future studies of the relationship between individual Ureaplasma species or subtypes and human disease.

Indexed as

Antigens, BacterialBacterial ProteinsDNA, BacterialDNA PrimersDNA, RibosomalFemaleHumansPolymerase Chain ReactionPregnancyPregnancy Complications, InfectiousRNA, BacterialRNA, Ribosomal, 16SRNA, Ribosomal, 23SSerotypingUreaplasmaUreaplasma InfectionsAntigens, BacterialBacterial ProteinsDNA, BacterialDNA PrimersDNA, Ribosomalmultiple-banded antigen, UreaplasmaRNA, BacterialRNA, Ribosomal, 16SRNA, Ribosomal, 23SUrease

Identifiers

PMID10699016
PMCPMC86368

What OpenQuestion holds

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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.