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Tumor necrosis factor alpha (Tnf) plays a pleiotropic role in murine malaria. Some investigations have correlated Tnf with hypothermia, hyperlactatemia, hypoglycemia, and a suppression of the erythropoietic response, although others have not. In this study, we have evaluated parasitemia, survival...


Hernández Valladares, M.Naessens, JanMusoke, A.J.Sekikawa, K.Rihet, P.Ole-MoiYoi, O.K.Busher, P.Iraqi, F.A.[Pathology of Tnf-deficient mice infected with Plasmodium chabaudi adami 408XZ]Pathology of Tnf-deficient mice infected with Plasmodium chabaudi adami 408XZ

To examine differences in cytokine profiles that may confer tolerance/susceptibility to bovine African trypanosomiasis, N'Dama (trypanotolerant, n = 8) and Boran (trypanosusceptible, n = 8) cattle were experimentally challenged with Trypanosoma congolense. Blood samples were collected over a 34-d...


O'Gorman, G.M.Park, S.D.E.Hill, E.W.Meade, K.G.Mitchell, L.C.Agaba, MorrisGibson, John P.Hanotte, Olivier H.Naessens, JanKemp, Stephen J.MacHugh, D.E.[Cytokine mRNA profiling of peripheral blood mononuclear cells from trypanotolerant and trypanosusceptible cattle infected with Trypanosoma congolense]Cytokine mRNA profiling of peripheral blood mononuclear cells from trypanotolerant and trypanosusceptible cattle infected with Trypanosoma congolense

Trypanosoma congolense is a protozoan parasite that causes severe diseases in livestock. Three major quantative trait loci (QTL), Tir1, Tir2, and Tir3, control the survival time of mice after infection with T. congolense. Congenic mice carrying the C57BL/6 resistance alleles on the A/J background...


Rathkolb, B.Noyes, H.A.Brass, A.Dark, P.Fuchs, H.Gailus-Durner, V.Gibson, John P.Angelis, M.H. deOgugo, M.Iraqi, F.A.Kemp, Stephen J.Naessens, JanPope, M.E.Wolf, E.Agaba, Morris[Clinical chemistry of congenic mice with quantitative trait loci for predicted responses to Trypanosoma congolense infection]Clinical chemistry of congenic mice with quantitative trait loci for predicted responses to Trypanosoma congolense infection

In areas with a low incidence of infection due to unimodal presence of ticks, Theileria parva has been observed to induce a disease with relatively low pathology. This is followed by a carrier state, rather than death and therefore provides a better chance of transmission of the parasite back to ...


Tindih, H.S.Marcotty, T.Naessens, JanGoddeeris, B.M.Geysen, D.[Demonstration of differences in virulence between two Theileria parva isolates]Demonstration of differences in virulence between two Theileria parva isolates

Trypanosoma congolense are extracellular protozoan parasites of the blood stream of artiodactyls and are one of the main constraints on cattle production in Africa. In cattle, anaemia is the key feature of disease and persists after parasitaemia has declined to low or undetectable levels, but tre...


Noyes, H.A.Alimohammadian, M.H.Agaba, MorrisBrass, A.Fuchs, H.Gailus-Durner, V.Hulme, H.Iraqi, F.A.Kemp, Stephen J.Rathkolb, B.Wolf, E.Angelis, M.H. deRoshandel, D.Naessens, Jan[Mechanisms controlling anaemia in Trypanosoma congolense infected mice]Mechanisms controlling anaemia in Trypanosoma congolense infected mice

The heat shock protein (HSP) 70.1 gene lies on mouse chromosome 17 among the candidates for Tir1, the major quantitative trait locus associated with response to Trypanosoma congolense infection. To evaluate whether the HSP70.1 gene is involved in the response, we compared the susceptibility of HS...


Nakamura, Y.Naessens, JanTakata, M.Taniguchi, T.Sekikawa, K.Gibson, John P.Iraqi, F.A.[Susceptibility of heat shock protein 70.1-deficient C57BL/6 J, wild-type C57BL/6 J and A/J mice to Trypanosoma congolense infection]Susceptibility of heat shock protein 70.1-deficient C57BL/6 J, wild-type C57BL/6 J and A/J mice to Trypanosoma congolense infection

Tumor necrosis factor-α (TNF-α) plays a role in the host’s defence against infections with African trypanosomes. It helps to control the blood stream form of the parasite and in Trypanosoma congolense infections, it also prolongs survival. The mechanisms by which this cytokine can influence paras...


Kitani, H.Yagi, Y.Naessens, JanSekikawa, K.Iraqi, F.A.[The secretion of acute phase proteins and inflammatory cytokines during Trypanosoma congolense infection is not affected by the absence of the TNF-α gene]The secretion of acute phase proteins and inflammatory cytokines during Trypanosoma congolense infection is not affected by the absence of the TNF-α gene

Theileria parva is a tick-transmitted protozoan parasite that infects and transforms bovine lymphocytes. We have previously shown that Theileria parva Chitongo is an isolate with a lower virulence than that of T. parva Muguga. Lower virulence appeared to be correlated with a delayed onset of the ...


Tindih, H.S.Geysen, D.Goddeeris, B.M.Awino, EliasDobbelaere, D.A.E.Naessens, Jan[A Theileria parva isolate of low virulence infects a subpopulation of lymphocytes]A Theileria parva isolate of low virulence infects a subpopulation of lymphocytes

This study aimed to provide the foundation for an integrative approach to the identification of the mechanisms underlying the response to infection with Trypanosoma congolense, and to identify pathways that have previously been overlooked. We undertook a large-scale gene expression analysis study...


Kierstein, S.Noyes, H.Naessens, JanNakamura, Y.Pritchard, J.Gibson, John P.Kemp, Stephen J.Brass, A.[Gene expression profiling in a mouse model for African trypanosomiasis]Gene expression profiling in a mouse model for African trypanosomiasis

Synthetic antimicrobial 9-mer peptides (designated as peptides A and B) designed on the basis of insect defensins and their effects on the growth of African trypanosomes were examined using two isolates of Trypanosoma congolense, IL1180 and IL3338, and two isolates of Trypanosoma brucei brucei, I...


Kitani, H.Naessens, JanKubo, M.Nakamura, Y.Iraqi, F.A.Gibson, John P.Yamakawa, M.[Synthetic nonamer peptides derived from insect defensin mediate the killing of African trypanosomes in axenic culture]Synthetic nonamer peptides derived from insect defensin mediate the killing of African trypanosomes in axenic culture

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