Evidence map›Paper›PMID 27605788›Full record

ArticleJournal of parasitic diseases : official organ of the Indian Society for Parasitology2016

Molecular approach for detecting early prepatent Schistosoma mansoni infection in Biomphalaria alexandrina snail host.

Adel Farghaly, Ayman A Saleh, Soad Mahdy, Dalia Abd El-Khalik, Naglaa F Abd El-Aal, Sara A Abdel-Rahman, Marwa A Salama

Open access · bronzeAbstract read
In one paragraph

Article in Journal of parasitic diseases : official organ of the Indian Society for Parasitology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 90% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Rapid and Sensitive Detection ofTropical medicine and infectious disease · 2026
    Article
  3. Article
  4. Land use drives trematode dynamics in a restored stream system.Current research in parasitology & vector-borne diseases · 2026
    Article
  5. Freshwater snail-borne parasitic diseases in Africa.Tropical medicine and health · 2024
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. New epidemiological profile of schistosomiasis from an area of low prevalence in Brazil.Revista da Sociedade Brasileira de Medicina Tropical · 2020
    Article
  12. Prevalence ofJournal of tropical medicine · 2020
    Review
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 1 institution in 1 country.

Adel FarghalyDepartment of Medical Parasitology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Ayman A SalehDepartment of Animal Wealth Development, Genetics & Genetic Engineering, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Soad MahdyDepartment of Medical Parasitology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Dalia Abd El-KhalikDepartment of Medical Parasitology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Naglaa F Abd El-AalDepartment of Medical Parasitology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Sara A Abdel-RahmanDepartment of Medical Parasitology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Marwa A SalamaDepartment of Medical Parasitology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Zagazig University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study aimed to evaluate a polymerase chain reaction (PCR) assay used for detection of Schistosoma mansoni infection in Biomphalaria alexandrina snails in early prepatent period and to compare between it and the ordinary detection methods (shedding and crushing). Biomphalaria alexandrina snails are best known for their role as intermediate hosts of S. mansoni. DNA was extracted from infected snails in addition to non-infected "negative control" (to optimized the efficiency of PCR reaction) and subjected to PCR using primers specific to a partial sequence of S. mansoni fructose-1,6-bus phosphate aldolase (SMALDO). SMALDO gene was detected in the infected laboratory snails with 70, 85, and 100 % positivity at the 1st, 3rd, and 7th day of infection, respectively. In contrast, the ordinary method was not sensitive enough in detection of early prepatent infection even after 7 days of infection which showed only 25 % positivity. By comparing the sensitivity of the three methods, it was found that the average sensitivity of shedding method compared to PCR was 23.8 % and the average sensitivity of crushing method compared to PCR was 46.4 % while the sensitivity of PCR was 100 %. We conclude that PCR is superior to the conventional methods and can detect positive cases that were negative when examined by shedding or crushing methods. This can help in detection of the areas and times of high transmission which in turn will be very beneficial in planning of the exact timing of the proper control strategy.

Indexed as

PCRPrepatent infectionSMALDOS. mansoni

Identifiers

PMID27605788
PMCPMC4996196
OpenAlexW2099488468

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.