Evidence map›Paper›PMID 22451729›Full record

ArticleThe Korean journal of parasitology2012

A recombinant Plasmodium vivax apical membrane antigen-1 to detect human infection in Iran.

Afsaneh Motevalli Haghi, Mohammad Reza Khoramizade, Mehdi Nateghpour, Mehdi Mohebali, Gholam Hossein Edrissian, Mohammad Reza Eshraghian, Zargham Sepehrizadeh

Open access · diamondAbstract readEvaluation Study
In one paragraph

Article in The Korean journal of parasitology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 18% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. A Dual, Systematic Approach to Malaria Diagnostic Biomarker Discovery.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Allelic Variations ofIranian journal of parasitology
    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

7 authors at 1 institution in 1 country.

Afsaneh Motevalli HaghiDepartment of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Mohammad Reza Khoramizade
Mehdi Nateghpour
Mehdi Mohebali
Gholam Hossein Edrissian
Mohammad Reza Eshraghian
Zargham Sepehrizadeh
Tehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In Iran, Plasmodium vivax is responsible for more than 80% of the infected cases of malaria per year. Control interventions for vivax malaria in humans rely mainly on developed diagnostic methods. Recombinant P. vivax apical membrane antigen-1 (rPvAMA-1) has been reported to achieve designing rapid, sensitive, and specific molecular diagnosis. This study aimed to perform isolation and expression of a rPvAMA-1, derived from Iranian patients residing in an endemic area. Then, the diagnostic efficiency of the characterized Iranian PvAMA-1 was assessed using an indirect ELISA method. For this purpose, a partial region of AMA-1 gene was amplified, cloned, and expressed in pET32a plasmid. The recombinant His-tagged protein was purified and used to coat the ELISA plate. Antibody detection was assessed by indirect ELISA using rPvAMA-1. The validity of the ELISA method for detection of anti-P. vivax antibodies in the field was compared to light microscopy on 84 confirmed P. vivax patients and compared to 84 non-P. vivax infected individuals. The ELISA cut-off value was calculated as the mean+2SD of OD values of the people living in malaria endemic areas from a south part of Iran. We found a cut-off point of OD=0.311 that showed the best correlation between the sera confirmed with P. vivax infection and healthy control sera. A sensitivity of 81.0% and specificity of 84.5% were found at this cut off titer. A good degree of statistical agreement was found between ELISA using rPvAMA-1 and light microscopy (0.827) by Kappa analysis.

Indexed as

Antibodies, ProtozoanAntigens, ProtozoanDiagnostic Tests, RoutineEnzyme-Linked Immunosorbent AssayFemaleHumansIranMalaria, VivaxMaleMembrane ProteinsPlasmodium vivaxProtozoan ProteinsSensitivity and SpecificityAntibodies, ProtozoanAntigens, Protozoanapical membrane antigen I, PlasmodiumMembrane ProteinsProtozoan ProteinsAMA-1ELISAIranmicroscopyPlasmodium vivaxrecombinant antigen

Identifiers

PMID22451729
PMCPMC3309046
OpenAlexW2093033140

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.