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Serum albumin, prealbumin, and ischemia-modified albumin levels in patients with ANCA-associated vasculitis: A prospective cohort study

Authors
 Sung Soo Ahn  ;  Taejun Yoon  ;  Jason Jungsik Song  ;  Yong-Beom Park  ;  Sang-Won Lee 
Citation
 PLOS ONE, Vol.17(7) : e0271055, 2022-07 
Journal Title
PLOS ONE
Issue Date
2022-07
MeSH
Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis* ; Antibodies, Antineutrophil Cytoplasmic ; Biomarkers ; Humans ; Prealbumin / genetics ; Prospective Studies ; Serum Albumin* ; Serum Albumin, Human
Abstract
Objectives: Acute phase reactants (APRs) are proteins altered by inflammation and are regarded as surrogate markers representing inflammatory status. This study evaluated changes of albumin (Alb), prealbumin (Palb), and ischemia-modified albumin (IMA) in patients with anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) in response to alterations in disease activity and the correlation between disease activity and Alb, Palb, and IMA.

Methods: Fifty-nine patients with AAV registered in the prospective SHAVE cohort, who had available serial blood samples at least three months apart were included (indicated as pre and post). Correlation analysis and linear regression were carried out to determine the relationship between continuous variables. Alb, Palb, and IMA levels in 40 healthy controls (HCs) were compared with patients with AAV.

Results: Comparison of Alb, Palb, and IMA levels in HCs and in patients at initial (pre) and follow-up (post) time points revealed that Alb levels significantly increased following the improvement of disease activity and were comparable between HCs and patients at follow-up (post). Meanwhile, there was no significant difference noted in Palb and IMA levels after the decrease of disease activity. While initial (pre) Alb and Palb were significantly associated with BVAS, a subgroup analysis of patients with new-onset disease showed Palb was no longer significantly associated with Birmingham Vasculitis Activity Score (BVAS). Multivariate linear regression showed Alb level (standardized β = -0.377; 95% confidence interval: -5.623, -1.260; p = 0.003) was an independent predictor of BVAS at baseline.

Conclusions: Among Alb, Palb, and IMA, we found that Alb could be a useful marker indicating disease activity in patients with AAV.
Files in This Item:
T202202541.pdf Download
DOI
10.1371/journal.pone.0271055
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Yong Beom(박용범)
Song, Jason Jungsik(송정식) ORCID logo https://orcid.org/0000-0003-0662-7704
Ahn, Sung Soo(안성수) ORCID logo https://orcid.org/0000-0002-9002-9880
Lee, Sang-Won(이상원) ORCID logo https://orcid.org/0000-0002-8038-3341
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/189444
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