Evidence map›Paper›PMID 17562767›Full record

ArticleInfection and immunity2007

Role of the Omp25/Omp31 family in outer membrane properties and virulence of Brucella ovis.

Paola Caro-Hernández, Luis Fernández-Lago, María-Jesús de Miguel, Ana I Martín-Martín, Axel Cloeckaert, María-Jesús Grilló, Nieves Vizcaíno

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
5.2field-weighted citation impact, top 5% 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

47 citing papers in PubMed, 73 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

Paola Caro-HernándezDepartamento de Microbiología y Genética, Edificio Departamental, Universidad de Salamanca, Plaza Doctores de la Reina s/n, 37007 Salamanca, Spain.
Luis Fernández-Lago
María-Jesús de Miguel
Ana I Martín-Martín
Axel Cloeckaert
María-Jesús Grilló
Nieves Vizcaíno
Universidad de Salamanca · ESAgrobiotechnology Institute · ESGobierno de Aragón · ESInfectiologie Animale et Santé Publique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The genes coding for the five outer membrane proteins (OMPs) of the Omp25/Omp31 family expected to be located in the outer membrane (OM) of rough virulent Brucella ovis PA were inactivated to evaluate their role in virulence and OM properties. The OM properties of the mutant strains and of the mutants complemented with the corresponding wild-type genes were analyzed, in comparison with the parental strain and rough B. abortus RB51, in several tests: (i) binding of anti-Omp25 and anti-Omp31 monoclonal antibodies, (ii) autoagglutination of bacterial suspensions, and (iii) assessment of susceptibility to polymyxin B, sodium deoxycholate, hydrogen peroxide, and nonimmune ram serum. A tight balance of the members of the Omp25/Omp31 family was seen to be essential for the stability of the B. ovis OM, and important differences between the OMs of B. ovis PA and B. abortus RB51 rough strains were observed. Regarding virulence, the absence of Omp25d and Omp22 from the OM of B. ovis PA led to a drastic reduction in spleen colonization in mice. While the greater susceptibility of the Deltaomp22 mutant to nonimmune serum and its difficulty in surviving in the stationary phase might be on the basis of its dramatic attenuation, no defects in the OM able to explain the attenuation of the Deltaomp25d mutant were found, especially considering that the fully virulent Deltaomp25c mutant displayed more important OM defects. Accordingly, Omp25d, and perhaps Omp22, could be directly involved in the penetration and/or survival of B. ovis inside host cells. This aspect, together with the role of Omp25d and Omp22 in the virulence both of B. ovis in rams and of other Brucella species, should be thoroughly evaluated in future studies.

Indexed as

AnimalsAnti-Bacterial AgentsBacterial Outer Membrane ProteinsBrucella ovisBrucellosisColony Count, MicrobialDisease Models, AnimalFemaleGene DeletionGenetic Complementation TestMiceMice, Inbred BALB CMicrobial Sensitivity TestsMutagenesis, InsertionalSerum Bactericidal TestSpleenAnti-Bacterial AgentsBacterial Outer Membrane ProteinsVirulence Factors

Identifiers

PMID17562767
PMCPMC1952020
OpenAlexW2121182539

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.