Related Experiment Videos
Serum TNF in patients with severe malaria treated by exchange transfusion
L Loutan1, C Plancherel, M Soulier-Lauper
1Department of Medicine, Hôpital Cantonal Universitaire de Genève, Switzerland.
Abstract:
The authors report on three cases of severe P. falciparum malaria successfully treated by iv quinine and exchange transfusion. Serum concentrations of Tumor Necrosis Factor (TNF) were determined before and during treatment. After an initial decrease, serum levels of TNF remained markedly elevated during the first 48 hours despite exchange transfusion. Though exchange transfusion accelerates the elimination of parasites from the blood, it seems to have no immediate effects on reducing serum levels of cytokines such as TNF.
Insights
Severe malaria caused by Plasmodium falciparum can be treated with quinine and exchange transfusion. However, exchange transfusion does not immediately reduce elevated Tumor Necrosis Factor (TNF) levels in patients.
Area of Science:
- Malariology
- Immunology
- Clinical Medicine
Background:
- Plasmodium falciparum malaria is a life-threatening disease.
- Treatment often involves antimalarial drugs and supportive care.
- Tumor Necrosis Factor (TNF) is a key cytokine implicated in malaria pathogenesis.
Observation:
- Three cases of severe P. falciparum malaria were treated with intravenous quinine and exchange transfusion.
- Serum TNF levels were monitored before and during treatment.
- Parasite clearance was achieved in all cases.
Findings:
- Serum TNF levels initially decreased but remained significantly elevated for 48 hours post-treatment, even after exchange transfusion.
- Exchange transfusion effectively removed P. falciparum parasites from the blood.
- Cytokine levels, specifically TNF, were not immediately reduced by exchange transfusion.
Implications:
- Exchange transfusion is effective for parasite clearance in severe malaria.
- The persistence of elevated TNF levels suggests a complex inflammatory response in severe malaria that is not rapidly resolved by current interventions.
- Further research is needed to understand the role of cytokines in severe malaria and to develop strategies for modulating the inflammatory response.