Evidence map›Paper›PMID 29629055›Full record

ArticleElectronic physician2018

Accuracy of immunoblotting assay for detection of specific IgE compared with ImmunoCAP in allergic patients.

Raheleh Shokouhi Shoormasti, Mohammad Reza Fazlollahi, Anoshirvan Kazemnejad, Masoud Movahedi, Behnoosh Tayebi, Zahra Yazdanyar, Zakieh Azadi, Zahra Pourpak, Mostafa Moin

Open access · goldAbstract read
In one paragraph

Article in Electronic physician, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 46% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. 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

9 authors at 2 institutions in 1 country.

Raheleh Shokouhi ShoormastiPh.D. Student, Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Mohammad Reza FazlollahiMD., Allergist and Clinical Immunologist, Assistant Professor, Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Anoshirvan KazemnejadPh.D. of Biostatistics, Professor, Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Masoud MovahediMD., Allergist and Clinical Immunologist, Professor, Department of Allergy and Clinical Immunology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
Behnoosh TayebiPh.D. Student, Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Zahra YazdanyarB.Sc., Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Zakieh AzadiB.Sc., Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Zahra PourpakMD, Ph.D. of Immunology, Professor, Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Mostafa MoinMD., Allergist and Clinical Immunologist, Professor, Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Tehran University of Medical Sciences · IRTarbiat Modares University · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimStandardized techniques help us to better diagnosis and follow up of allergic diseases. In this study, we determined the sensitivity, accuracy, and specificity of an Immunoblotting test compared to ImmunoCAP as the reference in vitro test for detection of specific IgE in allergic patients.

methodsIn this cross-sectional study, specific IgE level was determined in patients with allergic symptoms who referred to the Immunology, Asthma and Allergy Research Institute, Tehran, Iran from 2010-2016, by two techniques. Eleven different allergens (six aeroallergens and five food allergens) were determined, and 303 specific IgE tests were performed for the patients by each method. The Immunoblotting test is a multiplex assay on a nitrocellulose membrane coated with 20 selected allergens. ImmunoCAP is considered as the reference method for determination of in vitro specific IgE. Its principle is an automated sandwich immunoassay, and allergens were bound to the solid phase, covalently. Finally, the fluorescence of elute was determined. Specific IgE more than 0.35 KU/L was considered as a positive test. Sensitivity, specificity, accuracy, kappa coefficient, positive and negative likelihood ratio (+/- LR), and correlation coefficient (calculated with Spearman test) between two tests were determined using statistical analysis (SPSS software, version 18).

resultsOne hundred and thirty five patients entered this study. The median age of the patients was 3.75 years with the males constituting 54.8% of the population. The most common cheif complaints were respiratory (51.6%), skin (41.8%) and gastrointestinal (27.9%) symptoms, respectively. The sensitivity, specificity, accuracy, +LR and -LR were 83%, 97%, 92%, 27.66 and 0.17, respectively. The kappa coefficient of the immunoblotting test was 0.81 compared to the reference technique. The correlation coefficient for positive tests between the two methods was 0.71 (p<0.001).

conclusionRegarding the presence of 20 allergens in a RIDA allergy panel and according to our findings, this immunoblotting test with high sensitivity could be used as a fast and cost-efficient screening test. However, ImmunoCAP is recommended when the accurate level of specific IgE is required. ImmunoCAP findings are particularly helpful for immunotherapy and the elimination diet.

Indexed as

ImmunoblottingSensitivitySpecific IgESpecificity

Identifiers

PMID29629055
PMCPMC5878026
OpenAlexW2792804869

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.