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Andrianarivo, A.G.Muiya, P.McOdimba, F.A.Gettinby, G.Logan-Henfrey, L.L.[Kinetics of haemopoietic progenitor cell during a Trypanosoma congolense rechallenge infection in Boran cattle]Kinetics of haemopoietic progenitor cell during a Trypanosoma congolense rechallenge infection in Boran cattle

A bioassay was used to measure erythropoietin (EPO) concentrations in calves with haemorrhagic anaemia due to blood loss and in calves with anaemia due to Trypanosoma congolense infection. The bioactivity of EPO was measured in the assay by its stimulatory effect on 125I-deoxyuridine incorporatio...


Buza, J.J.Logan-Henfrey, L.L.Andrianarivo, A.G.Williams, D.J.L.[Rise in erythropoietin concentrations in experimental Trypanosoma congolense infection of calves]Rise in erythropoietin concentrations in experimental Trypanosoma congolense infection of calves

Anaemia is a major cause of morbidity and mortality in bovine trypanosomiasis and has served as the main parameter to monitor the severity of the disease. In fact, trypanosome-infected cattle experience intermittent episodes of pancytopaenia including anaemia, leucopaenia and trombocytopaenia. Co...


Andrianarivo, A.G.Muiya, P.Opollo, M.Logan-Henfrey, L.L.[Comparative bone marrow responses during Trypanosoma congolense infection in N'Dama and Boran cattle]Comparative bone marrow responses during Trypanosoma congolense infection in N'Dama and Boran cattle

Using in vitro clonogenic assays, the changes in haemopoietic progenitor cell levels were compared in the bone marrow of three adult trypanotolerant N'Dama cattle and three age-matched trypanosusceptible Boran cattle over 17 weeks (119 days) of a primary Trypanosoma congolense (clone IL 1180) inf...


Andrianarivo, A.G.Muiya, P.Opollo, M.Logan-Henfrey, L.L.[Trypanosoma congolense: Comparative effects of a primary infection on bone marrow progenitor cells from N'Dama and Boran cattle]Trypanosoma congolense: Comparative effects of a primary infection on bone marrow progenitor cells from N'Dama and Boran cattle

N'Dama (Bos taurus) cattle are known to tolerate trypanosome infections, developing less severe anemia and lower parasitemia, compared to Boran (Bos indicus) cattle. Young calves were also reported to be more resistant to trypanosomiasis than adult cattle. To expore the basis for this resistance,...


Andrianarivo, A.G.Muiya, P.Logan-Henfrey, L.L.[Trypanosoma congolense: High erythropoietic potential in infected yearling cattle during the acute phase of the anemia]Trypanosoma congolense: High erythropoietic potential in infected yearling cattle during the acute phase of the anemia

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