期刊
JOURNAL OF INFECTIOUS DISEASES
卷 212, 期 8, 页码 1317-1321出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiv205
关键词
autopsy; cerebral malaria; pediatrics; Africa; Malawi; pathology
资金
- National Institutes of Health [RO1 AO34969, K23 AI072033]
- Wellcome Trust [042390/Z/94]
- Brigham and Women's Hospital
Children in sub-Saharan Africa continue to acquire and die from cerebral malaria, despite efforts to control or eliminate the causative agent, Plasmodium falciparum. We present a quantitative histopathological assessment of the sequestration of parasitized erythrocytes in multiple organs obtained during a prospective series of 103 autopsies performed between 1996 and 2010 in Blantyre, Malawi, on pediatric patients who died from cerebral malaria and controls. After the brain, sequestration of parasites was most intense in the gastrointestinal tract, both in patients with cerebral malaria and those with parasitemia in other organs. Within cases of histologically defined cerebral malaria, which includes phenotypes termed sequestration only (CM1) and sequestration with extravascular pathology (CM2), CM1 was associated with large parasite numbers in the spleen and CM2 with intense parasite sequestration in the skin. A striking histological finding overall was the marked sequestration of parasitized erythrocytes across most organs in patients with fatal cerebral malaria, supporting the hypothesis that the disease is, in part, a result of a high level of total-body parasite sequestration.
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