Laboratory Medicine ›› 2018, Vol. 33 ›› Issue (5): 411-415.DOI: 10.3969/j.issn.1673-8640.2018.05.009

• Orginal Article • Previous Articles     Next Articles

Roles of 25-hydroxyvitamin D levels and related indicators for inflammatory myopathy

LI Yaju1, CHEN Kun1, GUAN Ming2   

  1. 1. Department of Clinical Laboratory,North Campus,Huashan Hospital,Fudan University,Shanghai 201907,China
    2. Central Laboratory,Huashan Hospital,Fudan University,Shanghai 200040,China
  • Received:2017-09-14 Online:2018-05-20 Published:2018-05-30

Abstract:

Objective To investigate the levels and roles of 25-hydroxyvitamin D [25(OH)D] levels and related indicators for idiopathic inflammatory myopathy (IIM). Methods A total of 35 untreated patients with IIM were enrolled,and 44 patients with other autoimmune diseases were enrolled as control group. The levels of 25(OH)D,white blood cell (WBC),neutrophil count (NEUT#),hemoglobin (Hb),platelet (PLT),creatinine (Cr),uric acid (UA),blood urea nitrogen (BUN),alanine aminotransferase (ALT),aspartate aminotransferase (AST),creatine kinase (CK),creatine kinase MB isoenzyme (CK-MB),lactate dehydrogenase (LDH),myoglobin (MYO),cardiac troponin T (cTnT),complement (C) 3,C4,IgA,IgG,IgM,anti-Jo-1 antibody and anti-nuclear antibody were determined. The results were analyzed statistically. Results The levels of 25(OH)D,Cr,UA and BUN were lower in IIM group than those in control group (P<0.05),and the levels of ALT,AST,CK,CK-MB,LDH,MYO and C4 and the positive rate of anti-Jo-1 antibody were higher in IIM group than those in control group (P<0.05). There was no statistical significance for sex,age,Hb,WBC,NEUT#,PLT,cTnT,IgA,IgG,IgM,C3 and anti-nuclear antibody between IIM and control groups (P>0.05). Conclusions The level of 25(OH)D in patients with IIM is lower than that in patients with other autoimmune diseases,which can be used as an auxiliary indicator for the differential diagnosis of IIM and other autoimmune diseases.

Key words: 25-Hydroxyvitamin D, Inflammatory myopathy, Polymyositis, Dermatomyositis

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