Journal
CYTOKINE
Volume 27, Issue 6, Pages 173-179Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cyto.2004.05.007
Keywords
dengue; cytokines; inflammatory response; coagulopathy activated protein C
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Background: Dengue virus infection has been rising in tropical countries. Clinical manifestations range from fever and general malaise to hemorrhagic manifestations and death. The role of endothelial damage and cytokines has not been well established for dengue infection. Objective: Determine the profile of the pro-inflammatory cytokines and several markers of coagulopathy of dengue infection. Methods: Patients admitted between September 2000 and April 2001, who met the WHO dengue diagnosis criteria, were enrolled. Blood samples were collected at 0, 6, 12, 24, 48, 72 h and 5 and 7 days after hospitalization. Profile of pro-inflammatory cytokines, markers of coagulopathy, protein C, protein S, d-dimer, prothrombin time, activated partial thromboplastin time, fibrinogen and activated protein C levels were determined. Results: Thirty-three patients were enrolled. Median (range) age was 31 (13-70) years; 51.5% (17/33) were female. Ten of 33 (30%) presented with hemorrhagic manifestations. Patients were classified: Grade I: 23/33 (70%), Grade II: 10/33 (30%). At study entry IL-6 was the most elevated, followed by IL-8 and TNFalpha. IL-10 was not elevated. No significant differences (p < 0.05) were demonstrated in the levels of any of the haemostatic or cytokine markers by disease severity (Grade I versus Grade II patients). Conclusion: The systemic host inflammatory and coagulation activation response occurs early in patients with dengue viral infection in the absence of severe hemorrhagic manifestations, and provides the basis for considering future clinical study in the use of recombinant human activated protein C to treat patients with severe sepsis from dengue infection. (C) 2004 Elsevier Ltd. All rights reserved.
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