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  • Standardization of enzyme-linked immunosorbent assay to detect anti- Porphyromonas gingivalis-peptidylarginine-deiminase antibodies

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    Author(s)
    Carlos, Juliana Cristina
    Lira Júnior, Ronaldo
    Coelho, Bárbara
    Figueredo, Carlos Marcelo Da Silva
    Griffith University Author(s)
    da Silva Figueredo, Carlos Marcelo
    Year published
    2018
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    Abstract
    Objective: our aim was to standardize an indirect ELISA immunoenzymatic assay for the detection of serum anti-PPAD antibodies in adolescents with juvenile systemic lupus erythematosus (jSLE). Material and Methods: serum of 50 patients, 25 with juvenile systemic lupus erythematosus (group A) (mean age 16.1 ± 1.6 years) and 25 healthy subjects (mean age 15.2 years ± 2.3 years) (group B) were analyzed. The method for anti-PPAD antibodies detection was chronologically performed by addi-tion of: (1) diluted PPAD peptide (sensitization step), (2) bovine serum albumin (BSA) (blocking step), (3) serum from each participating patient ...
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    Objective: our aim was to standardize an indirect ELISA immunoenzymatic assay for the detection of serum anti-PPAD antibodies in adolescents with juvenile systemic lupus erythematosus (jSLE). Material and Methods: serum of 50 patients, 25 with juvenile systemic lupus erythematosus (group A) (mean age 16.1 ± 1.6 years) and 25 healthy subjects (mean age 15.2 years ± 2.3 years) (group B) were analyzed. The method for anti-PPAD antibodies detection was chronologically performed by addi-tion of: (1) diluted PPAD peptide (sensitization step), (2) bovine serum albumin (BSA) (blocking step), (3) serum from each participating patient and (4) diluted biotinylated monoclonal antibody anti-human IgG. The final steps consisted of the addition of (5) horseradish peroxidase-conjugated streptavidin protein, (6) hydrogen peroxide and (7) a chromogenic substance. Finally, (8) a stop solution was added to stop the reaction and the plaque was read in a spectrophotometric reader at 450nm. Results: serum anti-PPAD antibodies were detected in both groups without any difference between them. Conclusion: the detection of serum anti-PPAD antibodies was achieved in adolescents with juvenile systemic lupus erythematosus using the methodology proposed by the study.
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    Journal Title
    Revista Brasileira de Odontologia
    Volume
    75
    DOI
    https://doi.org/10.18363/rbo.v75.2018.e1201
    Copyright Statement
    © The Author(s) 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Immunology
    Publication URI
    http://hdl.handle.net/10072/387841
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    • Journal articles

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