Evidence map›Paper›PMID 23275867›Full record

ArticleBacteriophage2012

Development of a high throughput assay for indirectly measuring phage growth using the OmniLog(TM) system.

Matthew Henry, Biswajit Biswas, Leah Vincent, Vishwesh Mokashi, Raymond Schuch, Kimberly A Bishop-Lilly, Shanmuga Sozhamannan

Open access · bronzeAbstract read
In one paragraph

Article in Bacteriophage, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

51 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Quantifying phage infectivity from characteristics of bacterial population dynamics.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Challenges and opportunities of phage therapy forApplied and environmental microbiology · 2024
    Review
  11. Article
  12. Antimicrobial agents and chemotherapy · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Interlaboratory comparison ofJournal of clinical microbiology · 2023
    Article
  18. Article
  19. Review
  20. 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

7 authors at 6 institutions in 2 countries.

Matthew HenryHenry M. Jackson Foundation; Bethesda, MD USA ; Naval Medical Research Center; Biological Defense Research Directorate; Navy Medical Research Center-Frederick; Fort Detrick, MD USA.
Biswajit Biswas
Leah Vincent
Vishwesh Mokashi
Raymond Schuch
Kimberly A Bishop-Lilly
Shanmuga Sozhamannan
Naval Medical Research Command · USContraFect (United States) · USHenry M. Jackson Foundation · USJackson Foundation · USUnifor · NOUnited States Army Medical Research and Development Command · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The conventional and most accepted method of measuring the lytic activity of a phage against its bacterial host is the plaque assay. This method is laborious, time consuming and expensive, especially in high throughput analyses where multiple phage-bacterial interactions are required to be monitored simultaneously. It can also vary considerably with the experimenter and by the growth and plating conditions. Alternatively, the lytic activity can be measured indirectly by following the decrease in optical density of the bacterial cultures owing to lysis. Here we describe an automated, high throughput, indirect liquid lysis assay to evaluate phage growth using the OmniLog(TM) system. The OmniLog(TM) system uses redox chemistry, employing cell respiration as a universal reporter. During active growth of bacteria, cellular respiration reduces a tetrazolium dye and produces a color change that is measured in an automated fashion. On the other hand, successful phage infection and subsequent growth of the phage in its host bacterium results in reduced bacterial growth and respiration and a concomitant reduction in color. Here we show that microtiter plate wells inoculated with Bacillus anthracis and phage show decreased or no growth, compared with the wells containing bacteria only or phage resistant bacteria plus phage. Also, we show differences in the kinetics of bacterial growth and the timing of appearance of phage resistant bacteria in the presence of individual phages or a cocktail of B. anthracis specific phages. The results of these experiments indicate that the OmniLog(TM) system could be used reliably for indirectly measuring phage growth in high throughput host range and phage and antibiotics combination studies.

Identifiers

PMID23275867
PMCPMC3530525
OpenAlexW2064529162

What OpenQuestion holds

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LicenceCC BY-NC
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.