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:: Volume 23, Issue 4 (Iranian South Medical Journal 2020) ::
Iran South Med J 2020, 23(4): 292-301 Back to browse issues page
Accuracy of Indirect ELISA Prepared from Recombinant Bp26 Gene of Brucella melitensis in Diagnosis of Human Brucellosis
Seyed Davood Hoseini1 , Ehsanollah Ghaznavirad2, Ali Asghar Farazi3
1- Department of Molecular Biotechnology, Razi Vaccine and Serum Research Instutute, Agricultural, Research Education and Extension Organization (AREEO), Arak Branch, Arak
2- Department of Clinical Microbiology, School of Medicine, Arak University of Medical Sciences, Arak, Iran
3- Department of Infectious Diseases, School of Medicine, Arak University of Medical Sciences, Arak, Iran
Abstract:   (676 Views)
Background: Considering the prevalence of brucellosis in Iran, it is necessary to choose a specific and sensitive laboratory method to diagnose it in a rapid and timely manner. The aim of this study was to assess the accuracy of indirect enzyme-linked immunosorbent assay (ELISA) for detecting brucellosis in humans in order to have an appropriate alternative to conventional tests such as Wright, 2ME, and commercial ELISA kits.
Materials and Methods: In this study, the recombinant protein produced from the gene (omp28) bp26 Brucella melitensis was used as an antigen for coating microplate wells. A total of 124 serum samples of normal healthy individuals (n=62) and patients with acute brucellosis (n=62) approved by STA and 2 ME tests were entered into the study. The data were analyzed in SPSS (ver.18).
Results: The mean age was 39.8±13.5 years in the patient group and 36.1±12.7 years in the healthy group. Furthermore, 66.1% of the patients were male and 62.9% lived in rural regions, while these figures were respectively 71% and 45.2% in the healthy group. The sensitivity of 92% and specificity of 87% and a positive predictive value of 88% and a negative predictive value of 92% and an accuracy of 90% were determined for ELISA kit used in this study.
Conclusion: The ELISA diagnostic kit reacted to most of the positive human sera. However, this kit needs to be further evaluated with a larger sample size of clinical specimens from different regions and with
various clinical forms of human brucellosis.
Keywords: Brucellosis, Recombinant proteins, ELISA, bp26 gene
Full-Text [PDF 952 kb]   (160 Downloads)    
Type of Study: Original | Subject: Microbiology and Immunology
Received: 2019/06/13 | Accepted: 2020/05/30 | Published: 2020/09/30
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Hoseini S D, Ghaznavirad E, Farazi A A. Accuracy of Indirect ELISA Prepared from Recombinant Bp26 Gene of Brucella melitensis in Diagnosis of Human Brucellosis. Iran South Med J. 2020; 23 (4) :292-301
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Volume 23, Issue 4 (Iranian South Medical Journal 2020) Back to browse issues page
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