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1.
Ann Clin Biochem ; 56(1): 95-99, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30019588

RESUMO

BACKGROUND: Serum YKL-40 has been proved to be a promising biomarker for estimating the disease activity of several autoimmune diseases. However, its utility in polymyositis or dermatomyositis has not been established. The aim of this study was to investigate the utility of YKL-40 in patients with polymyositis/dermatomyositis. METHOD: Patients with definite polymyositis/dermatomyositis who visited the Second People's Hospital of Wuxi between April 2016 and March 2017 were prospectively enrolled. Eighty-seven healthy individuals were set as a control. Serum YKL-40 of all participants was determined using ELISA. The associations between YKL-40 and clinical characteristics of polymyositis/dermatomyositis were analysed using the Student's t-test, Mann-Whitney test and receiver operating characteristic curve analysis. RESULTS: A total of 99 patients with polymyositis/dermatomyositis were enrolled. The patients with polymyositis/dermatomyositis had significantly higher serum YKL-40 concentration. Patients with interstitial lung disease had significantly higher YKL-40 concentration than those without. Serum YKL-40 was positively correlated with myositis disease activity assessment visual analogue scale, C-reactive protein, erythrocyte sedimentation rate and ferritin. The area under receiver operating characteristic curve of YKL-40 for identifying interstitial lung disease was 0.82. CONCLUSIONS: Serum YKL-40 is a useful biomarker for estimating disease activity or severity of polymyositis/dermatomyositis.


Assuntos
Proteína 1 Semelhante à Quitinase-3/sangue , Dermatomiosite/sangue , Dermatomiosite/diagnóstico , Polimiosite/sangue , Polimiosite/diagnóstico , Idoso , Biomarcadores/sangue , Estudos Transversais , Feminino , Humanos , Doenças Pulmonares Intersticiais/sangue , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
2.
J Clin Lab Anal ; 32(1)2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28345776

RESUMO

BACKGROUND: Previous studies indicated that both red blood cell distribution width (RDW) and neutrophil to lymphocyte ratio (NLR) were useful indices in assessing the disease activity of autoimmune diseases. However, the evidence for the association between RDW, NLR and dermatomyositis (DM) and polymyositis (PM) is limited. The aim of this study is to investigate the association between the disease activity of PM/DM and both RDW and NLR. METHODS: Medical records of 114 PM/DM patients and 114 healthy controls were retrospectively reviewed, and their RDW, NLR and myositis disease activity assessment visual analogue scale (MYOACT) on admission were extracted. The correlations between RDW, NLR and MYOACT were analyzed using the Spearman approach and multivariable model. RESULTS: PM/DM patients had significantly higher RDW and NLR. Increased RDW in PM/DM patients was not completely attributed to decreased hemoglobin or therapeutic agents. Both RDW and NLR are independently and positively correlated MYOACT. CONCLUSION: Both RDW and NLR are useful indices in assessing the disease activity of PM/DM.


Assuntos
Dermatomiosite , Índices de Eritrócitos/fisiologia , Contagem de Leucócitos/estatística & dados numéricos , Linfócitos/citologia , Neutrófilos/citologia , Polimiosite , Adulto , Estudos de Casos e Controles , Dermatomiosite/sangue , Dermatomiosite/epidemiologia , Dermatomiosite/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Polimiosite/sangue , Polimiosite/epidemiologia , Polimiosite/fisiopatologia
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