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Title: Cytoadherence characteristics of Plasmodium falciparum isolates in Thailand using an in vitro human lung endothelial cells model
Authors: Boubacar TraorĂ©
Kabongo Muanza
Sornchai Looareesuwan
Suvanee Supavej
Srisin Khusmith
Martin Danis
Parnpen Viriyavejakul
Frederick Gay
Hopital Pitie Salpetriere
Mahidol University
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Jan-2000
Citation: American Journal of Tropical Medicine and Hygiene. Vol.62, No.1 (2000), 38-44
Abstract: Using an in vitro model of human lung endothelial cells, we studied different characteristics of Plasmodium falciparum isolates as potential factors for malaria severity in 2 Thai patient groups: 27 with complicated malaria and 42 with uncomplicated malaria. In regard to binding properties, no association existed between cytoadherence and rosette phenotypes (P = 0.1) and hypothrombocytemia increased the cytoadherence level (P = 0.007). Cytoadherence was significantly associated with malaria severity (P = 0.05) in contrast to rosette formation (P = 0.9). Intercellular adhesion molecule-1 and chondroitin-4-sulfate were major receptors of cytoadherence in those with complicated malaria compared with those with uncomplicated malaria (P < 10-4). Chondroitin-4-sulfate could act as a putative receptor for malaria complications in non-pregnant women. CD36 was the main receptor in patients with uncomplicated malaria (P < 10-3). Vascular cell adhesion molecule-1 and E-selectin played a minor role in 2 groups (P = 0.6). Qinghaosu derivatives were more efficient than other antimalarial drugs, but a positive correlation was observed between the 50% inhibitory concentrations of halofantrine and quinine and the number of adhesive parasitized red blood cells, suggesting their influence on cytoadherence.
ISSN: 00029637
Appears in Collections:Scopus 1991-2000

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