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Immunology and Infectious Disease Commons™
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Articles 1 - 3 of 3
Full-Text Articles in Immunology and Infectious Disease
Plasmodium Impairs Antibacterial Innate Immunity To Systemic Infections In Part Through Hemozoin-Bound Bioactive Molecules., Christopher Lynn Harding
Plasmodium Impairs Antibacterial Innate Immunity To Systemic Infections In Part Through Hemozoin-Bound Bioactive Molecules., Christopher Lynn Harding
Electronic Theses and Dissertations
Despite efforts to decrease the global health burden of malaria, infections with Plasmodium species continue to cause over 200 million episodes of malaria each year which resulted in 405,000 deaths in 2018 [1]. One complication of malaria is increased susceptibility to invasive bacterial infections. Plasmodium infections impair host immunity to non-Typhoid Salmonella (NTS) through activities of heme oxygenase I (HO-I) )-induced release of immature granulocytes and myeloid cell-derived IL-10. Yet, it is not known if these mechanisms are specific to NTS. We show here, that Plasmodium yoelii 17XNL (Py) infected mice had impaired clearance of systemic Listeria monocytogenes (Lm) during …
Investigation Of Dual Stage Acridones As A Potent Malaria Treatment, Stephanie Huezo
Investigation Of Dual Stage Acridones As A Potent Malaria Treatment, Stephanie Huezo
Dissertations, Masters Theses, Capstones, and Culminating Projects
The need for potent antimalarials to prevent the emergence of drug resistant Plasmodium falciparum is urgent. Discovery of novel acridone chemotypes have shown promise for a new antimalarial drug treatment. Presently, two acridone chemotypes have intrinsic antimalarial potency against chloroquine sensitive and multidrug resistant parasites. Acridones lacking an N10 side chain are known as chemotype I acridones, whereas, chemotype II acridones are defined as having an alkyl side chain at the same position. The N10 substitution of chemotype II acridones is thought to target heme and inhibit hemozoin formation within the parasite’s digestive vacuole, and is known to provide synergistic …
Altered Intraerythrocytic Development Phenotypes Of Artemisinin-Resistant Plasmodium Falciparum Confer A Fitness Advantage, Amanda Hott
USF Tampa Graduate Theses and Dissertations
Resistance to artemisinin combination therapies (ACTs) has emerged in southeast Asia threatening the most widely used treatment against antimalarial-resistant Plasmodium falciparum worldwide. Artemisinin resistance has been associated with a reduced rate of parasite clearance following treatment with an ACT and is attributed to increased survival of ring-stage parasites. Single nucleotide polymorphisms (SNPs) in kelch gene (K13) has been associated with delayed in vivo clearance half-life of artemisinin-resistant P. falciparum and is the only known molecular marker of resistance. The absence of reliable in vitro phenotypes for artemisinin resistance has limited our understanding of the resistance mechanism(s) and fitness costs, therefore …