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Table 1 Laboratory data

From: Anti-U3 ribonucleoprotein antibody-positive inflammatory myopathy: a case report

Test

Value

Hematology

 White blood cells

5700/μl

 Red blood cells

441 × 104/μl

 Hemoglobin

13.7 g/dl

 Platelet count

18.9 × 104/μl

Chemistry

 Total protein

7.7 g/dl

 CK

1045 IU/L

 AST

54 IU/L

 ALT

75 IU/L

 Aldolase

21.6 IU/L

 Myoglobin

386 mg/dl

Autoantibody

 Antinuclear

5120-fold

 Anti-SSA/Ro

(−)

 Anti-SSB/La

(−)

 Anti-MPO-ANCA

(−)

 Anti-RNP3-ANCA

(−)

 Anti-Smith

(−)

 Anti-ssDNA

(−)

 Anti-dsDNA

(−)

 Anti-Scl-70

(−)

 Anti-centromere

(−)

 Anti-RF

(−)

 Anti-CCP

(−)

Myositis-specific autoantibody

 Anti-Jo-1

(−)

 Anti-PL-7

(−)

 Anti-PL-12

(−)

 Anti-EJ

(−)

 Anti-OJ

(−)

 Anti-SRP

(−)

Myositis-associated autoantibody

 Anti-U1 RNP

(−)

 Anti-Ku

(−)

 Anti-PM-Scl

(−)

 Anti-U3 RNP

(+)

  1. CK creatine kinase, AST aspartate aminotransferase, ALT alanine aminotransferase, MPO-ANCA myeloperoxidase antineutrophil cytoplasmic antibody, PR3-ANCA proteinase 3 antineutrophil cytoplasmic antibody, SRP signal recognition particle, dsDNA double-stranded DNA, ssDNA single-stranded DNA, RF rheumatoid factor, CCP cyclic citrullinated peptide, Scl-70 DNA topoisomerase I, Jo-1 hystidyl-tRNA synthetase, PL7 threonyl-tRNA synthetase, PL12 alanyl-tRNA synthetase, EJ glycyl-tRNA synthetase, OJ isoleucyl-tRNA synthetase, U1 RNP U1-ribonucleoprotein, U3 RNP anti-U3-ribonucleoprotein