Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity

Rheumatoid arthritis (RA) is an inflammatory rheumatic disease characterized by the presence of autoantibodies. This study aims to determine the sensitivity and specificity of anti-carbamylated protein (anti-CarP) antibodies in rheumatoid arthritis (RA) patients in relation to rheumatoid factor (...

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Main Author: Othman, Maizatul Akmal
Format: Thesis
Language:English
Published: 2018
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Online Access:http://eprints.usm.my/46153/1/Dr.%20Maizatul%20Akmal%20Binti%20Othman-24%20pages.pdf
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spelling my-usm-ep.461532020-02-10T04:14:49Z Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity 2018-01 Othman, Maizatul Akmal RC Internal medicine Rheumatoid arthritis (RA) is an inflammatory rheumatic disease characterized by the presence of autoantibodies. This study aims to determine the sensitivity and specificity of anti-carbamylated protein (anti-CarP) antibodies in rheumatoid arthritis (RA) patients in relation to rheumatoid factor (RF), anti-cyclic citrullinated peptide (anti-CCP) antibodies, C-reactive protein (CRP) as well as to determine their association with disease activity score-28 (DAS28) and health assessment questionnaire (HAQ) score. This study included 105 RA patients (48 RFpositive and 57 RF-negative patients) conducted at Hospital Universiti Sains Malaysia (HUSM) from January 2015 until February 2016. Fifty healthy controls (HCs) were included. CRP, RF, anti-CCP and anti-CarP antibodies were measured. HAQ was administered to each of the study participants. DAS28 of the 105 RA patients was measured. The level of anti-CarP antibodies was significantly increased in the RA patients compared to that in the HCs (p=0.042). The sensitivity and specificity of anti-CarP antibodies in RA patients were 42% and 78%, respectively. The presence of anti-CarP antibodies was significantly associated with RF (p=0.019) and the HAQ results (p=0.010). However, there was no significant association ofanti-CarP antibodies with anti-CCP antibodies and CRP (p=0.564 and p=0.075, respectively). Furthermore, a significant association between anti-CarP antibodies with DAS28 was not found (p=0.165). This study provides further evidence that the level of anti-CarP antibodies is significantly elevated in RA patients. In addition, this study showed that anti-CarP-positive RA patients more likely to demonstrate increased disability compared to anti-CarP-negative RA patients. Therefore, anti- CarP antibodies have a potential to be further develop as a biomarker to aid in the diagnosis and prognosis of RA. 2018-01 Thesis http://eprints.usm.my/46153/ http://eprints.usm.my/46153/1/Dr.%20Maizatul%20Akmal%20Binti%20Othman-24%20pages.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Perubatan
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic RC Internal medicine
spellingShingle RC Internal medicine
Othman, Maizatul Akmal
Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
description Rheumatoid arthritis (RA) is an inflammatory rheumatic disease characterized by the presence of autoantibodies. This study aims to determine the sensitivity and specificity of anti-carbamylated protein (anti-CarP) antibodies in rheumatoid arthritis (RA) patients in relation to rheumatoid factor (RF), anti-cyclic citrullinated peptide (anti-CCP) antibodies, C-reactive protein (CRP) as well as to determine their association with disease activity score-28 (DAS28) and health assessment questionnaire (HAQ) score. This study included 105 RA patients (48 RFpositive and 57 RF-negative patients) conducted at Hospital Universiti Sains Malaysia (HUSM) from January 2015 until February 2016. Fifty healthy controls (HCs) were included. CRP, RF, anti-CCP and anti-CarP antibodies were measured. HAQ was administered to each of the study participants. DAS28 of the 105 RA patients was measured. The level of anti-CarP antibodies was significantly increased in the RA patients compared to that in the HCs (p=0.042). The sensitivity and specificity of anti-CarP antibodies in RA patients were 42% and 78%, respectively. The presence of anti-CarP antibodies was significantly associated with RF (p=0.019) and the HAQ results (p=0.010). However, there was no significant association ofanti-CarP antibodies with anti-CCP antibodies and CRP (p=0.564 and p=0.075, respectively). Furthermore, a significant association between anti-CarP antibodies with DAS28 was not found (p=0.165). This study provides further evidence that the level of anti-CarP antibodies is significantly elevated in RA patients. In addition, this study showed that anti-CarP-positive RA patients more likely to demonstrate increased disability compared to anti-CarP-negative RA patients. Therefore, anti- CarP antibodies have a potential to be further develop as a biomarker to aid in the diagnosis and prognosis of RA.
format Thesis
qualification_level Master's degree
author Othman, Maizatul Akmal
author_facet Othman, Maizatul Akmal
author_sort Othman, Maizatul Akmal
title Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
title_short Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
title_full Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
title_fullStr Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
title_full_unstemmed Evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
title_sort evaluation of anti-carbamylated protein antibodies as a potential biomarker in assisting the diagnosis of rheumatoid arthritis and its correlation with disease activity
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Sains Perubatan
publishDate 2018
url http://eprints.usm.my/46153/1/Dr.%20Maizatul%20Akmal%20Binti%20Othman-24%20pages.pdf
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