ArticleArchives of Razi Institute2022
Application and Validation of SARS-CoV-2 RBD Neutralizing ELISA Assay.
Article in Archives of Razi Institute, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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.
Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- Article
- Development of an Effective Neutralizing Antibody Assay for SARS-CoV-2 Diagnosis.International journal of nanomedicine · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The establishment of an approach for detecting the anti-severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)-receptor-binding domain (RBD) neutralizing antibodies (nAbs) by a safe, easy, and rapid technique without requiring the use of live viruses is essential for facing the coronavirus disease 2019 (COVID-19) pandemic. Depending on competitive enzyme-linked immunosorbent assay (ELISA) methodology, the current study assay was designed to simulate the virus-host interaction using purified SARS-COV-2-RBD from the spike protein and the host cell receptor human angiotensin-converting enzyme 2 protein. The performance of this in-house neutralizing ELISA assay was validated using freshly prepared standards with different known concentrations of the assay. In this regard, a cohort of 50 serum samples from convalescent COVID-19 individuals with different disease severity at different time points post-recovery and a cohort of 50 serum samples from healthy individuals were processed by the in-house developed assay for detecting SARS-CoV-2 nAbs, in comparison with a commercial total anti-SARS-CoV-2 IgG antibody assay as a gold standard. The assay obtained a sensitivity of 88% (95% CI: 75.69-95.47) and a specificity of 92% (95% CI: 80.77- 97.78%). A negative strong correlation was demonstrated in the standard curve between the optical density absorbance and log concentration of the nAbs with a statistical measure of r2 (coefficient of determination) = 0.9539. The SARS-COV-2-RBD neutralizing ELISA assay serves as a high throughput qualitative and quantitative tool that can be applied in most laboratory settings without special biosafety requirements to detect anti-RBD nAbs for seroprevalence, pre-clinical, and clinical evaluation of COVID-19 vaccines efficiency and the rapid selection of convalescent plasma donors for the treatment of COVID-19 patients.
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Registered trials
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.