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- W2044654038 abstract "The anaemia induced by 3′-azido-3′dideoxythymidine (AZT) is poorly understood. We have used a murine model of AIDS, infection of female C57BL/6 mice with LP- BM5 murine leukaemia (MuLV) virus, to determine if AZT- induced anaemia is due, in part, to decreased responsiveness of erythropoietic precursors (BFU-e) to erythropoietin (EPO). Mice in the early stage of LP-BM5 MuLV disease were given AZT in their drinking water at 1·0 and 2·5 mg/ml. AZT produced anaemia in both groups, in a dose-dependent fashion. Despite the anaemia, the number of splenic and bone marrow BFU-e in AZT treated mice increased up to five-fold over levels observed in infected untreated animals after 15 d of treatment. Colony formation by splenic and bone marrow BFUe was stimulated at lower concentrations of EPO in mice receiving AZT for 15 d than for infected, untreated mice. By day 30, sensitivity of both splenic and bone marrow BFU-e of treated animals returned to that observed from cells of infected untreated animals. The mean plasma levels of EPO observed in AZT treated mice were appropriate for the degree of anaemia observed when compared with phenylhydrazine (PHZ) treated mice. The numbers of BFU-e and the percent- age of bone marrow erythroblasts observed were comparable in AZT and PHZ treated mice with similar degrees of anaemia. However, reticulocytosis was inappropriate for the degree of anaemia observed in AZT treated infected mice. AZT-induced peripheral anaemia in the face of increased numbers of BFU-e and increased levels of plasma EPO suggest a lesion in terminal differentiation." @default.
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- W2044654038 date "1991-02-01" @default.
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- W2044654038 title "Sensitivity of erythroid progenitor colonies to erythropoietin in azidothymidine treated immunodeficient mice" @default.
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- W2044654038 doi "https://doi.org/10.1111/j.1365-2141.1991.tb07968.x" @default.
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