Evidence map›Paper›PMID 22936171›Full record

ArticleJapanese journal of ophthalmology2012

Broad-range real-time PCR assay for detection of bacterial DNA in ocular samples from infectious endophthalmitis.

Manabu Ogawa, Sunao Sugita, Norio Shimizu, Ken Watanabe, Ichiro Nakagawa, Manabu Mochizuki

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Article in Japanese journal of ophthalmology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. The cereus matter of Bacillus endophthalmitis.Experimental eye research · 2020
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Observational
  15. Endophthalmitis: state of the art.Clinical ophthalmology (Auckland, N.Z.) · 2015
    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 2 institutions in 1 country.

Manabu OgawaDepartment of Ophthalmology and Visual Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Sunao Sugita
Norio Shimizu
Ken Watanabe
Ichiro Nakagawa
Manabu Mochizuki
Tokyo Medical and Dental University · JPRIKEN Center for Biosystems Dynamics Research · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate a broad-range real-time polymerase chain reaction (PCR) targeting the bacterial 16S rRNA gene for detection of bacterial DNA in infectious endophthalmitis.

methodsThe bacterial 16S rRNA gene was measured by quantitative real-time PCR. For the assay, bacterial DNA was prepared from 12 Gram-positive and 4 Gram-negative strains. To determine the optimum method for DNA extraction, four extraction procedures were selected by using DNA extraction program cards with and without the use of lysozyme. To evaluate PCR sensitivity, PCR fragments were amplified from Staphylococcus aureus and Escherichia coli DNA.

resultsDNA extraction using the Bacteria card(®) without enzymes resulted in detection of all the tested strains at concentrations ≥ 10(7) copies/mL. Extraction with the Bacteria card(®) with lysozyme resulted in detection of all the tested strains at concentrations ≥ 10(6) copies/mL, indicative of no significant difference between the two procedures. DNA extraction using the Virus card(®), both with and without enzymes, resulted in reduced efficiency of detection of all strains compared with use of the Bacteria card(®). The PCR could detect as few as 1-10 colony-forming units (CFU) in diluted vitreous samples per reaction, and all tested bacterial species known to cause endophthalmitis were detected.

conclusionsBacterial 16S-specific PCR can comprehensively detect the main causative bacteria of clinically suspected endophthalmitis.

Indexed as

Colony Count, MicrobialDNA, BacterialEndophthalmitisEye Infections, BacterialGram-Negative BacteriaGram-Positive BacteriaHumansReal-Time Polymerase Chain ReactionRNA, BacterialRNA, Ribosomal, 16SSensitivity and SpecificityDNA, BacterialRNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID22936171
OpenAlexW2005757972

What OpenQuestion holds

Textmetadata
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.