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Study on the correlation between anti-ribosomal P protein antibody and systemic lupus erythematosus.

Abstract：

:The aims of this study were to compare diagnostic value of anti-ribosomal P protein antibody (anti-P), anti-Smith antibody (anti-Sm), anti-double-stranded DNA antibody (anti-dsDNA), anti-nucleosome antibody (ANuA), and anti-histone antibody (AHA) for systemic lupus erythematosus (SLE) as well as explore the correlation between anti-P and SLE.A retrospective study was performed with 487 SLE patients, 235 non-SLE rheumatic diseases, and 124 healthy subjects from January 2015 to December 2018. Clinical manifestations, laboratory results and Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)-2000 scores were analyzed between anti-P/+/ and anti-P/-/ patients. SPSS19.0 statistical software was used for data analysis.The sensitivities of anti-P, anti-Sm, anti-dsDNA, ANuA, and AHA in SLE were 31.6%, 20.7%, 45.0%, 27.9%, and 14.6%, and the specificities were 99.2%, 99.4%, 98.9%, 98.3%, and 96.7%, respectively. Only 27.9% of SLE had a single positive anti-P while the other 4 antibodies were all negative. There were significant differences in the age of onset, skin erythema, urinary protein, creatinine and serum IgG, IgM, C3, C4 between anti-P/+/ and anti-P/-/ patients (P < .05). When anti-Sjogren syndrome A antibody, anti-P were positive and anti-dsDNA was negative, the incidence of skin erythema was the highest (35.1%). Compared with anti-P/-/ patients, anti-P/+/ patients had higher SLEDAI scores (P < .001).Anti-P, anti-Sm, anti-dsDNA, ANuA, and AHA have high specificity but poor sensitivity in the diagnosis of SLE; combined detection can greatly improve the detection rate. Anti-P is more valuable in the diagnosis of SLE when other specific autoantibodies are negative. SLE patients with positive anti-P have an earlier onset age and are more prone to skin erythema, lupus nephritis as well as higher disease activity.

journal_name

Medicine (Baltimore)

journal_title

Medicine

authors

Wang Y,Luo P,Guo T,Zou L,Shi J,Chen P

doi

10.1097/MD.0000000000020192

subject

Has Abstract

pub_date

2020-05-01 00:00:00

pages

e20192

issue

eissn

0025-7974

issn

1536-5964

pii

00005792-202005150-00056

journal_volume

pub_type

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Study on the correlation between anti-ribosomal P protein antibody and systemic lupus erythematosus.