Evidence map›Paper›PMID 28668985›Full record

ArticleParasitology research2017

Toxoplasma genotyping in congenital toxoplasmosis in Upper Egypt: evidence of type I strain.

Hanan E M Eldeek, Alzahraa Abdel Raouf Ahmad, Mohamed Ahmed El-Mokhtar, Abdel Rahman M M Abdel Kader, Ahmad M Mandour, Mahmoud Elhady M Mounib

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In one paragraph

Article in Parasitology research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 31% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Molecular diagnosis of human toxoplasmosis: the state of the art.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2024
    Review
  5. Seroprevalence and Genetic Characterization ofJournal of tropical medicine · 2022
    Article
  6. Article
  7. Seroprevalence, isolation, molecular detection and genetic diversity ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2018
    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

6 authors at 1 institution in 1 country.

Hanan E M EldeekMedical Parasitology Department, Faculty of Medicine, Assiut University, Assiut, Egypt. hananhmo@yahoo.com.ORCID http://orcid.org/0000-0003-4369-632X
Alzahraa Abdel Raouf AhmadMedical Parasitology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
Mohamed Ahmed El-MokhtarMedical Microbiology and Immunology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
Abdel Rahman M M Abdel KaderObstetrics and Gynecology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
Ahmad M MandourMedical Parasitology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
Mahmoud Elhady M MounibMedical Parasitology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
Assiut University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Toxoplasma gondii has subpopulation structures in different geographical regions caused by less frequent sexual recombination, population sweeps, and biogeography. The majority of strains isolated in North America and Europe fall into one of three clonal lineages, referred to as types I, II, and III. So far, little is known about genetics of Toxoplasma strains in Africa. The present study aimed to determine the genotype of Toxoplasma strains obtained directly from trophoblastic/placental tissues of 29 complicated pregnant women using multilocus nested-PCR-RFLP technique depending on four independent genetic loci (5' SAG2 and 3' SAG2), SAG3, GRA6, and BTUB genes. All samples gave positive amplicons at 5'-3' SAG2 and SAG3 genes. Meanwhile, no amplification products were observed in 12 (41.37%) and 10 (34.48%) samples with GRA6 and BTUB genes, respectively. The restriction pattern revealed the presence of genotype I in all samples, except one sample, which revealed atypical genotype with unusual restriction pattern at 3' SAG2 gene. The negative amplifications in some samples could be due to presence of mutations or polymorphisms in the primer binding sites of these isolates, raising the possibility of mixed or recombinant genotypes. To the best of our knowledge, this is the first time to perform genotype analysis study based on Multiplex nPCR-RFLP technique for genetic characterization of T. gondii in Egypt. Besides, it is the first time to prove that the most prevalent strain of T. gondii, responsible for congenital toxoplasmosis in Upper Egypt, is the highly virulent type I. Atypical genotype was detected as well.

Indexed as

AdultAfricaAntibodies, ProtozoanDNA, ProtozoanEgyptEuropeFemaleGenotypeHumansImmunoglobulin GImmunoglobulin MMolecular EpidemiologyMolecular TypingNorth AmericaPhylogenyPolymerase Chain ReactionAntibodies, ProtozoanDNA, ProtozoanImmunoglobulin GImmunoglobulin MAtypical strainsCongenital toxoplasmosisMultilocus genotypingToxoplasma gondiiType I strain

Identifiers

PMID28668985
OpenAlexW2731212418

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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.