Evidence map›Paper›PMID 25371795›Full record

ArticleJundishapur journal of microbiology2014

Immunofluorescence assay and PCR analysis of cryptosporidium oocysts and species from human feacal specimens.

Mehdi Vejdani, Rezaei Mansour, Yezdan Hamzavi, Sina Vejdani, Naser Nazeri, Ali Michaeli

Abstract read
In one paragraph

Article in Jundishapur journal of microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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0cells of the map it votes in
2citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

2 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Mehdi VejdaniDepartment of Parasitology and Mycology, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.
Rezaei MansourDepartment of Statistic and Epidemiology, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.
Yezdan HamzaviDepartment of Parasitology and Mycology, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.
Sina VejdaniDepartment of Bioscience, University of Calgary, Alberta, Canada.
Naser NazeriDepartment of Parasitology and Mycology, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.
Ali MichaeliDepartment of Parasitology and Mycology, Kermanshah University of Medical Sciences, Kermanshah, IR Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCryptosporidium spp. is a widespread protozoan parasite involving humans and animals.

objectivesThis study was carried out to evaluate the immunofluorescence assay (IFA) and PCR results for more accurate diagnosis of faecal specimens. PATIENTS AND

methodsForty six faecal human specimens of Cryptosporidium oocysts were examined by PCR and IFA in Calgary, Canada. In statistical analysis, sensitivity and positive predictive value were detected by IFA.

resultsAmong 46 faecal samples, 9 (19.6%) were IFA-positive and 10 (21.7%) PCR-positive. Faecal smears of both PCR- and IFA-positive shown that the reproducibility was 90.9% for PCR-DNA and 81.8% for IFA. In Our findings, PCR -DNA showed that diagnosis cryptosporidiosis 2.1% was more sensitive than IFA. Two different oocysts sizes were visualized by IF microscopy which belonged to different species. Furthermore, PCR analysis with primers against the 18S rRNA gene indicated two genotypes of C. hominis and C. parvum, 500-650 base pairs (bp). In this study, the golden standard was the PCR. In statistical analyses, IFA had positive predictive value (PPV) of 81.8% with 81.8% sensitivity, whereas negative predictive value (NPV) was 1% with 0.97% specificity.

conclusionsPCR showed more sensitivity than IFA for tracking Cryptosporidium oocysts as well as detection of species in faecal human specimens.

Indexed as

Cryptosporidium parvumFluorescent Antibody TechniquePolymerase Chain Reaction

Identifiers

PMID25371795
PMCPMC4217664

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