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All Journal Makara Journal of Science Jurnal Kedokteran Hewan
Noviana, Rachmitasari
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Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Veterinary

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Development and Optimization of an Immunoassay for the Detection of Antibodies Against SARS-CoV-2 with In-house Recombinant RBD Protein Ratu, Safira Pinaka Pramestika; Mariya, Silmi; Noviana, Rachmitasari; Saepuloh, Uus; Darusman, Huda Salahudin
Makara Journal of Science Vol. 26, No. 3
Publisher : UI Scholars Hub

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Abstract

COVID-19 caused by SARS-CoV-2 poses a major threat to the global community, particularly in Indonesia. Countermeasures to prevent the spread of this disease have also been implemented, including the implementation of a vaccination program. An immunoassay technique that can be used to analyze antibodies that might develop following vaccination is the indirect enzyme-linked immunosorbent assay (ELISA). We produced the recombinant spike protein used in this study. The optimization comprised adjusted concentrations of spike recombinant protein (5 and 10 ng/mL), blocking agent (2.5% and 5%), and conjugate (1:1000 and 1:5000). The optimal conditions in this study included a spiked concentration of 10 ng/mL, a blocking agent concentration of 5%, sample dilution of 1:33, and a conjugate concentration of 1:1000. The intra-assay value of this optimized indirect ELISA was 7.3, and the inter-assay value was 5.3. The commercial MyBioSource kit and immunodiagnostic were utilized as a reference in the T-test, with P-values of 0 and 0.313, indicating that the recombinant protein in-house ELISA kit in this study demonstrated the same ability as the commercial immunodiagnostic kit in detecting SARS-CoV-2 antibodies, allowing it to be used for post-vaccination efficacy evaluation.
RELIABILITY OF AMYLOID DETECTION IMMUNOASSAY KITS FOR ALZHEIMERS DISEASE SCREENING: A PRELIMINARY STUDY Putri, Indah Aprianti; Ningrum, Emilna Mega; Noviana, Rachmitasari; Mariya, Silmi; Saepuloh, Uus; Retnani, Elok Budi; Hamdan, Muhammad; Nugraha, Jusak; Darusman, Huda Shalahudin
Jurnal Kedokteran Hewan Vol 18, No 3 (2024): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v18i3.31109

Abstract

Alzheimers Disease is a progressive neurodegenerative disease that damages the brain and is part of dementia. Alzheimers dementia is caused by various factors that until now the proper therapy is uncertain. Kit production as a diagnostic tool to support the development of screening for Alzheimers disease is a strategic effort. Screening based on detection with Enzyme-Linked Immunosorbent Assay (ELISA) can work effectively and accurately to optimize a specific antibody material or monoclonal antibody to the A42 peptide. This study aimed to research the reliability of the amyloid detection kit which was developed as an alternative screening test for Alzheimers disease compared to commercially available kits. Based on the results and interpretation of inter and intra-assay coefficients, the in-house ELISA kit has comparable A42 detection to the commercially available ELISA kit
Co-Authors Elok Budi Retnani Huda Shalahudin Darusman Jusak Nugraha Muhammad Hamdan Ningrum, Emilna Mega Putri, Indah Aprianti Ratu, Safira Pinaka Pramestika SILMI MARIYA UUS SAEPULOH