Role of DNA-associated autoantibodies to cell membrane in the diagnosis of juvenile systemic lupus erythematosus / 中华儿科杂志
Chinese Journal of Pediatrics
;
(12): 820-823, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-358491
ABSTRACT
<p><b>OBJECTIVE</b>To establish a method of indirect immunofluorescence (IIF) to measure DNA (mDNA)-associated autoantibodies to cell membrane, and to evaluate diagnostic value of the anti-mDNA antibodies in patients with juvenile systemic lupus erythematosus (SLE) in comparison with anti-dsDNA antibody.</p><p><b>METHODS</b>Forty-four children with SLE were enrolled in this study. As a control group, 30 children with other rheumatic diseases were also enrolled. Anti-mDNA and anti-dsDNA antibodies were measured by IIF. Anti-smooth muscle (Sm) antibodies were measured by immuno-double diffusion (ID) and IIF.</p><p><b>RESULTS</b>Out of 44 juvenile SLE patients, 34 (77.27%) were seropositive for anti-mDNA, which was significantly higher than that of patients with other rheumatic diseases (20.00%, P<0.05). The sensitivity and specificity of anti-mDNA for juvenile SLE diagnosis were 77.27% and 80.00%, respectively. The positive predictive value and negative predictive value were 85.00% and 70.59%, respectively. The positive rate of anti-mDNA in SLE lacking of anti-dsDNA and anti-Sm antibodies were 68.00% (17/25) and 79.49% (31/39), respectively.</p><p><b>CONCLUSION</b>The detection of anti-mDNA antibodies is useful for diagnosis of juvenile SLE, especially in patients who are negative for anti-dsDNA antibodies and anti-Sm antibodies.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Case-Control Studies
/
Cell Membrane
/
Antibodies, Antinuclear
/
Predictive Value of Tests
/
Sensitivity and Specificity
/
Fluorescent Antibody Technique, Indirect
/
Allergy and Immunology
/
Lupus Erythematosus, Systemic
/
Methods
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Pediatrics
Year:
2009
Type:
Article
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