Evidence map›Paper›PMID 25737825›Full record

ArticleOsong public health and research perspectives2015

Preparation and Evaluation of a New Lipopolysaccharide-based Conjugate as a Vaccine Candidate for Brucellosis.

Seyed Davar Siadat, Farzam Vaziri, Mamak Eftekhary, Maryam Karbasian, Arfa Moshiri, Mohammad R Aghasadeghi, Mehdi S Ardestani, Meghdad Abdollahpour Alitappeh, Amin Arsang, Abolfazl Fateh and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Osong public health and research perspectives, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

8 citing papers in PubMed, 23 citations in OpenAlex.

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  8. Comparative study of effect ofGastroenterology and hepatology from bed to bench · 2019
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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

12 authors at 4 institutions in 1 country.

Seyed Davar SiadatDepartment of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran ; Department of Microbiology, Pasteur Institute of Iran, Tehran, Iran.
Farzam VaziriDepartment of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
Mamak EftekharyDepartment of Microbiology, Iran University of Medical Sciences, Tehran, Iran.
Maryam KarbasianDepartment of Microbiology, Pasteur Institute of Iran, Tehran, Iran.
Arfa MoshiriResearch Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mohammad R AghasadeghiDepartment of Hepatitis & AIDS, Pasteur Institute of Iran, Tehran, Iran.
Mehdi S ArdestaniDepartment of Microbiology, Iran University of Medical Sciences, Tehran, Iran.
Meghdad Abdollahpour AlitappehDepartment of Microbiology, Pasteur Institute of Iran, Tehran, Iran.
Amin ArsangDepartment of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
Abolfazl FatehDepartment of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
Shahin Najar PeerayehDepartment of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Ahmad R BahrmandDepartment of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
Pasteur Institute of Iran · IRIran University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRTarbiat Modares University · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesDevelopment of an efficacious vaccine against brucellosis has been a challenge for scientists for many years. At present, there is no licensed vaccine against human brucellosis. To overcome this problem, currently, antigenic determinants of Brucella cell wall such as Lipopolysaccharide (LPS) are considered as potential candidates to develop subunit vaccines.

methodsIn this study, Brucella abortus LPS was used for conjugation to Neisseria meningitidis serogroup B outer membrane vesicle (OMV) as carrier protein using carbodiimide and adipic acid-mediated coupling and linking, respectively. Groups of eight BALB/c mice were injected subcutaneously with 10 μg LPS alone, combined LPS + OMV and conjugated LPS-OMV on 0 days, 14 days, 28 days and 42 days. Anti-LPS IgG was measured in serum.

resultsThe yield of LPS to OMV in LPS-OMV conjugate was 46.55%, on the basis of carbohydrate content. The ratio for LPS to OMV was 4.07. The LPS-OMV conjugate was the most immunogenic compound that stimulated following the first injection with increased IgG titer of ∼5-fold and ∼1.3-fold higher than that produced against LPS and LPS in noncovalent complex to OMV (LPS + OMV), respectively. The highest anti-LPS IgG titer was detected 2 weeks after the third injection (Day 42) of LPS-OMV conjugate. The conjugated compound elicited higher titers of IgG than LPS + OMV, that showed a 100-120-fold rise of anti-LPS IgG in mice.

conclusionThese results indicate that our conjugated LPS-OMV can be used as a brucellosis vaccine, but further investigation is required.

Indexed as

brucellosisconjugate vaccinelipopolysaccharideouter membrane vesiclevaccine candidate

Identifiers

PMID25737825
PMCPMC4346588
OpenAlexW2102941698

What OpenQuestion holds

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Registered trials

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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.