An HIV-positive man from Zimbabwe living in South Africa sought treatment for multiple clinical signs, including fever, weight loss, anemia, and splenomegaly. We identified in his blood an African rodent piroplasm, Anthemosoma garnhami, related to Babesia species. This finding extends the known geographic and host range of A. garnhami.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8237893PMC
http://dx.doi.org/10.3201/eid2707.204759DOI Listing

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An HIV-positive man from Zimbabwe living in South Africa sought treatment for multiple clinical signs, including fever, weight loss, anemia, and splenomegaly. We identified in his blood an African rodent piroplasm, Anthemosoma garnhami, related to Babesia species. This finding extends the known geographic and host range of A.

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Half a century after its discovery, new insights on Anthemosoma garnhami (Sporozoa, Piroplasmida): morphology, molecular characterisation and phylogenetic position.

Parasitol Res

December 2018

Molécules de Communication et Adaptation des Micro-organismes (MCAM), UMR 7245 CNRS/MNHN, Muséum National d'Histoire Naturelle, 61 rue Buffon CP 52, 75231, Paris Cedex 05, France.

Here, we report new insights on the erythrocytic murine parasite Anthemosoma garnhami, which was first described from Ethiopia in 1969. Its classification has been debated for years, as this parasite presents some intermediate characters between the Haemosporidia and the Piroplasmida. Based on electron-microscopy, immunological, biochemical and drug sensitivity studies, it was finally assigned to the piroplasms, in the family Anthemosomatidae.

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Biochemical methods were investigated for use in taxonomic studies on Babesia. The techniques used were variation in the mobility of parasite enzymes on starch gels after electrophoresis and the measurement of the buoyant density of the DNA of the parasites. The study was carried out on four rodent species of Babesia (B.

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Comparative studies were carried out on the glucose catabolism of mouse erythrocytes infected with Plasmodium berghei, Plasmodium yoelii, Babesia rodhaini, Babesia microti and Anthemosoma garnhami, as well as on uninfected erythrocytes and reticulocytes. The results showed that there was little qualitative difference between the glucose utilization and lactate production of the parasites although quantitative differences between malaria parasites and piroplasms were observed. The rate of glucose utilization of the infected cells was at least an order of magnitude higher than the rate for uninfected erythrocytes.

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Enzymes of parasite origin were identified by starch-gel electrophoresis. The species of parasite studied were Plasmodium berghei, Plasmodium yoelii nigeriensis, Babesia rodhaini and Anthemosoma garnhami. Lactate dehydrogenase, glucose phosphate isomerase and (NADP) glutamate dehydrogenase were detected in all species; phosphogluconate dehydrogenase was detected in both Plasmodium species but malate dehydrogenase only in P.

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