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Hyperferritinaemia In Dengue Virus Infected Pat...

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Hyperferritinaemia In Dengue Virus Infected Patients Is Associated With Immune Activation And Coagulation Disturbances
Author: Cornelia A. M. Van De Weg , Ralph M. H. G. Huits , Cláudio S. Pannuti, Rosalba M. Brouns, Riemsdijk W. A. Van Den Berg, Henk-jan Van Den Ham, Byron E. E. Martina, Albert D. M. E. Osterhaus, Mihai G. Netea, Joost C. M. Meijers, E
Publisher: Derivative Works
11 pages
One time payment: €0.00
Required subscription: Free
Type of publication: Article
ISBN/ISSN: 1935-2727
DOI: 10.1371/0003214
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Background:During a dengue outbreak on the Caribbean island Aruba, highly elevated levels of ferritin were detected in dengue virus infected patients. Ferritin is an acute-phase reactant and hyperferritinaemia is a hallmark of diseases caused by extensive immune activation, such as haemophagocytic lymphohistiocytosis. The aim of this study was to investigate whether hyperferritinaemia in dengue patients was associated with clinical markers of extensive immune activation and coagulation disturbances.

Methodology/Principal Findings:Levels of ferritin, standard laboratory markers, sIL-2R, IL-18 and coagulation and fibrinolytic markers were determined in samples from patients with uncomplicated dengue in Aruba. Levels of ferritin were significantly increased in dengue patients compared to patients with other febrile illnesses. Moreover, levels of ferritin associated significantly with the occurrence of viraemia. Hyperferritinaemia was also significantly associated with thrombocytopenia, elevated liver enzymes and coagulation disturbances. The results were validated in a cohort of dengue virus infected patients in Brazil. In this cohort levels of ferritin and cytokine profiles were determined. Increased levels of ferritin in dengue virus infected patients in Brazil were associated with disease severity and a pro-inflammatory cytokine profile.

Conclusions/Significance:Altogether, we provide evidence that ferritin can be used as a clinical marker to discriminate between dengue and other febrile illnesses. The occurrence of hyperferritinaemia in dengue virus infected patients is indicative for highly active disease resulting in immune activation and coagulation disturbances. Therefore, we recommend that patients with hyperferritinaemia are monitored carefully.

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