Browsing Department of Public Health by Author "Vulule, John M"
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Functional Haplotypes of Fc gamma (Fcγ) receptor (FcγRIIA and FcγRIIIB) predict risk to repeated episodes of severe malarial anemia and mortality in Kenyan children
Ouma, Collins; Davenport, Gregory C; Garcia, Steven; Kempaiah, Prakasha; Chaudhary, Ateefa; Were, Tom; Anyona, Samuel B; Raballah, Evans; Konah, Stephen N; Hittner, James B; Vulule, John M; Ong’echa, John M; Perkins, Douglas J (Springer-Verlag, 2012-02-01)Development of protective immunity against Plasmodium falciparum is partially mediated through binding of malaria-specific IgG to Fc gamma (γ) receptors. Variations in human FcγRIIA-H/R-131 and FcγRIIIB-NA1/NA2 affect ... -
Increased severe anemia in HIV-1-exposed and HIV-1-positive infants and children during acute malaria
Were, T; Otieno, Richard O; Ouma, Collins; Ong'echa, JM; Kelle, Christopher C; Waindi, Eliud N; Michaels, Marian G; Day, Richard D; Vulule, John M; Perkins, DJ (AIDS, 2005)Increased severe anemia in HIV-1-exposed and HIV-1-positive infants and children during acute malaria -
Polymorphic variability in the 3'untranslated region (UTR) of IL12B is associated with susceptibility to severe anaemia in Kenyan children with acute Plasmodium falc...
Ong'echa, John M; Raballah, Evans O; Kempaiah, Prakasha M; Anyona, Samuel B; Were, Tom; Davenport, Gregory C; Konah, Stephen; Vulule, John M; Ouma, Collins; Hittner, James B; Perkins, Douglas J (BioMed Central, 2011-08-06)Plasmodium falciparum malaria remains a leading cause of morbidity and mortality among African children. Innate immunity provides the first line of defence against P. falciparum infections, particularly in young children ... -
Presence of the knockdown resistance mutation, Vgsc-1014F in Anopheles gambiae and An. arabiensis in western Kenya
Ochomo, Eric; Subramaniam, Krishanthi; Kemei, Brigid; Rippon, Emily; Bayoh, Nabie M; Kamau, Luna; Atieli, Francis; Vulule, John M; Ouma, Collins; Gimnig, John; Donnelly, Martin J; Mbogo, Charles (BioMed Central, 2015-12-01)Conclusion This is the first report of Vgsc-1014F in Kenya. Based on our samples, the mutation is present in low frequencies in both An. gambiae and An. arabiensis. It is important that we start monitoring relative ...