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Soluble urokinase-type plasminogen activator receptor as a measure of treatment response in acute exacerbation of COPD / Receptor do ativador de plasminogênio tipo uroquinase solúvel como medida da resposta ao tratamento da exacerbação aguda da DPOC
AboEl-Magd, Gehan Hassan; Mabrouk, Maaly Mohamed.
  • AboEl-Magd, Gehan Hassan; Tanta University. Faculty of Medicine. Chest Department. Tanta. EG
  • Mabrouk, Maaly Mohamed; Tanta University. Faculty of Medicine. Chest Department. Tanta. EG
J. bras. pneumol ; 44(1): 36-41, Jan.-Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-893895
ABSTRACT
ABSTRACT

Objective:

To evaluate the value of soluble urokinase-type plasminogen activator receptor (suPAR) in the diagnosis of acute exacerbation of COPD (AECOPD) and in monitoring treatment response, analyzing the relationship between suPAR and fibrinogen in AECOPD. AECOPD leads to increased airway inflammation, contributing to an exaggerated release of inflammatory mediators.

Methods:

We recruited 45 patients with AECOPD and 20 healthy control subjects. Medical histories were taken, and all subjects underwent clinical examination, chest X-ray, pulmonary function tests, and blood gas analysis. On day 1 (treatment initiation for the AECOPD patients) and day 14 (end of treatment), blood samples were collected for the determination of serum suPAR and plasma fibrinogen.

Results:

Serum levels of suPAR were significantly higher in the AECOPD group than in the control group. In the AECOPD patients, there was a significant post-treatment decrease in the mean serum suPAR level. The sensitivity, specificity, and accuracy of suPAR were 95.6%, 80.0%, and 93.0%, respectively. The Global Initiative for Chronic Obstructive Lung Disease stage (i.e., COPD severity) correlated positively and significantly with serum levels of suPAR and plasma levels of fibrinogen.

Conclusions:

Monitoring the serum suPAR level can be helpful in the evaluation of the COPD treatment response and might be a valuable biomarker for determining the prognosis of AECOPD. Because serum suPAR correlated with plasma fibrinogen, both markers could be predictive of AECOPD.
RESUMO
RESUMO

Objetivo:

Avaliar o valor do soluble urokinase-type plasminogen activator receptor (suPAR, receptor do ativador de plasminogênio tipo uroquinase solúvel) no diagnóstico de exacerbação aguda da DPOC (EADPOC) e no monitoramento da resposta ao tratamento, analisando-se a relação entre o suPAR e o fibrinogênio na EADPOC. A EADPOC leva ao aumento da inflamação das vias aéreas, contribuindo para a liberação exagerada de mediadores inflamatórios.

Métodos:

Foram recrutados 45 pacientes com EADPOC e 20 controles saudáveis. Realizou-se anamnese, e todos os indivíduos foram submetidos a exame clínico, radiografia de tórax, provas de função pulmonar e gasometria arterial. No dia 1 (início do tratamento para os pacientes com EADPOC) e no dia 14 (final do tratamento), foram coletadas amostras de sangue para dosagem de suPAR sérico e de fibrinogênio plasmático.

Resultados:

Os níveis séricos de suPAR foram significativamente maiores no grupo EADPOC do que no grupo controle. Nos pacientes com EADPOC, houve diminuição significativa da média de suPAR sérico após o tratamento. A sensibilidade, a especificidade e a acurácia do suPAR foram, respectivamente, de 95,6%, 80,0% e 93,0%. O estágio da doença segundo a Global Initiative for Chronic Obstructive Lung Disease (isto é, a gravidade da DPOC) apresentou correlação positiva e significativa com os níveis séricos de suPAR e os níveis plasmáticos de fibrinogênio.

Conclusões:

O monitoramento do suPAR sérico pode ser útil na avaliação da resposta ao tratamento da DPOC e seria um biomarcador valioso para a determinação do prognóstico da EADPOC. Como o suPAR sérico apresentou correlação com o fibrinogênio plasmático, ambos os marcadores poderiam ser preditores da EADPOC.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Fibrinogen / Pulmonary Disease, Chronic Obstructive / Receptors, Urokinase Plasminogen Activator Type of study: Diagnostic study / Observational study / Prognostic study / Risk factors Limits: Female / Humans / Male Language: English Journal: J. bras. pneumol Journal subject: Pulmonary Disease (Specialty) Year: 2018 Type: Article Affiliation country: Egypt Institution/Affiliation country: Tanta University/EG

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Full text: Available Index: LILACS (Americas) Main subject: Fibrinogen / Pulmonary Disease, Chronic Obstructive / Receptors, Urokinase Plasminogen Activator Type of study: Diagnostic study / Observational study / Prognostic study / Risk factors Limits: Female / Humans / Male Language: English Journal: J. bras. pneumol Journal subject: Pulmonary Disease (Specialty) Year: 2018 Type: Article Affiliation country: Egypt Institution/Affiliation country: Tanta University/EG