Evidence map›Paper›PMID 22752905›Full record

ArticleJournal of microbiology (Seoul, Korea)2012

Evaluation of the cell growth of mycobacteria using Mycobacterium smegmatis mc2 155 as a representative species.

Jorge A Gonzalez-Y-Merchand, Ruben Zaragoza-Contreras, Rosalina Guadarrama-Medina, Addy C Helguera-Repetto, Sandra Rivera-Gutierrez, Jorge F Cerna-Cortes, Leopoldo Santos-Argumedo, Robert A Cox

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In one paragraph

Article in Journal of microbiology (Seoul, Korea), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

6 citing papers in PubMed, 12 citations in OpenAlex.

  1. Novel Populations ofMicroorganisms · 2024
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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

8 authors at 3 institutions in 2 countries.

Jorge A Gonzalez-Y-MerchandDepartamento de Microbiologia, Escuela Nacional de Ciencias Biologicas, IPN, Prolong. Carpio y Plan de Ayala s/n, Col. Casco de Santo Tomas, Mexico, D.F., 11340, Mexico. jgonzal1212@yahoo.com.mx
Ruben Zaragoza-Contreras
Rosalina Guadarrama-Medina
Addy C Helguera-Repetto
Sandra Rivera-Gutierrez
Jorge F Cerna-Cortes
Leopoldo Santos-Argumedo
Robert A Cox
Instituto Politécnico Nacional · MXCenter for Research and Advanced Studies of the National Polytechnic Institute · MXNational Institute for Medical Research · TZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study of the in vitro cell growth of mycobacteria still remains a fastidious, difficult, and time-consuming procedure. In addition, assessing mycobacterial growth in the laboratory is often complicated by cell aggregation and slow growth-rate. We now report that the use of a stainless steel spring in the culture led to an absence of large cell clumps, to a decrease of dead cells in the exponential phase and to growth of a more homogeneous population of large cells. We also report that flow cytometry is a rapid, simple and reliable approach to monitor mycobacterial cell growth and viability. Here, we monitored Mycobacterium smegmatis cellular growth by optical density, dry cell mass, and colony forming units; in addition, viability, cell size and granularity profiles were analyzed by flow cytometry, and cell morphology by electron microscopy. Cultures monitored by flow cytometry may lead to a better understanding of the physiology of mycobacteria. Moreover, this methodology may aid in characterizing the cell growth of other fastidious species of microorganisms.

Indexed as

Bacteriological TechniquesCulture MediaFlow CytometryMicrobial ViabilityMycobacterium smegmatisStainless SteelCulture MediaStainless Steel

Identifiers

PMID22752905
OpenAlexW1995781943

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.