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Dysregulation Of The Haem-Haemopexin Axis Is Associated With Severe Malaria In A Case-Control Study Of Ugandan Children., Robyn E Elphinstone, Frank Riley, Tian Lin, Sarah Higgins, Aggrey Dhabangi, Charles Musoke, Christine Cserti-Gazdewich, Raymond F. Regan, H Shaw Warren, Kevin C Kain
Dysregulation Of The Haem-Haemopexin Axis Is Associated With Severe Malaria In A Case-Control Study Of Ugandan Children., Robyn E Elphinstone, Frank Riley, Tian Lin, Sarah Higgins, Aggrey Dhabangi, Charles Musoke, Christine Cserti-Gazdewich, Raymond F. Regan, H Shaw Warren, Kevin C Kain
Department of Medicine Faculty Papers
BACKGROUND: Malaria is associated with haemolysis and the release of plasma haem. Plasma haem can cause endothelial injury and organ dysfunction, and is normally scavenged by haemopexin to limit toxicity. It was hypothesized that dysregulation of the haem-haemopexin pathway contributes to severe and fatal malaria infections.
METHODS: Plasma levels of haemin (oxidized haem), haemopexin, haptoglobin, and haemoglobin were quantified in a case-control study of Ugandan children with Plasmodium falciparum malaria. Levels at presentation were compared in children with uncomplicated malaria (UM; n = 29), severe malarial anaemia (SMA; n = 27) or cerebral malaria (CM; n = 31), and evaluated …