Publications

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[further development of the roehl test for testing antimalarial agents on plasmodium cathemerium in the canary by intravenous administration]. 19675613461
duration of immunity to malaria, plasmodium cathemerium, in the canary. 194818867813
infectivity of sporozoites of plasmodium cathemerium 3h2 exposed in vitro to hen and canary bloods. 194818938303
attempted infection of the hen and man with the sporozoites of plasmodium cathemerium 3h2. 194718921770
experimental transmission of the 3m strain of plasmodium cathemerium to the duck and its chemotherapeutic suitability for routine antimalarial screening. 194818876867
reproduction of the 3t strain of plasmodium cathemerium in white pekin ducks. 194818861402
polymerase chain reaction-based identification of plasmodium (huffia) elongatum, with remarks on species identity of haemosporidian lineages deposited in genbank.numerous lineages of avian malaria parasites of the genus plasmodium have been deposited in genbank. however, only 11 morphospecies of plasmodium have been linked to these lineages. such linking is important because it provides opportunities to combine the existing knowledge of traditional parasitology with novel genetic information of these parasites obtained by molecular techniques. this study linked one mitochondrial cytochrome b (cyt b) gene lineage with morphospecies plasmodium (huffia) elo ...200818270739
curative action of pamaquine naphthoate, quinacrine hydrochloride, and quinine bisulphate in plasmodium cathemerium infections of the duck. 194818905218
plasmodium (haemamoeba) cathemerium gene sequences for phylogenetic analysis of malaria parasites.the dna sequence information on avian malaria parasites of the genus plasmodium is quite limited. at present, sequences of only 6 out of 34 valid species are available. however, sequence data of avian malaria parasites are particularly important with regard to the resolution of the phylogenetic relationships of the most virulent human malaria agent, plasmodium falciparum. the question as to whether p. falciparum originates from avian or from mammalian parasites would contribute to our understand ...200515812672
infectivity of sporozoites of plasmodium cathemerium 3h2 exposed in vitro to hen and canary bloods. 194818907619
the relation to the course of avian malaria of biotin and a fat-soluble material having the biological activities of biotin.biotin deficiency produced by a synthetic biotin-deficient diet was as effective in decreasing the resistance of chickens to infection with plasmodium lophurae as biotin deficiency produced by a diet high in egg white. in moderately biotin-deficient ducks plasmodium cathemerium at first multiplied more slowly than in adequately fed controls. the parasitemia in the deficient animals later overtook that in the controls and attained higher peak parasite numbers. the multiplication of p. cathemerium ...194719871642
electron microscopic observations of the gametocytes of a malarial parasite (plasmodium cathemerium). 195913818625
bayesian analysis of new and old malaria parasite dna sequence data demonstrates the need for more phylogenetic signal to clarify the descent of plasmodium falciparum.molecular systematic studies published during the last 15 years to clarify the phylogenetic relationships among the malaria parasites have led to two major hypotheses on the descent of plasmodium falciparum: one supports an avian origin as a result of a relatively recent host switch, and another one favours the evolutionary development of p. falciparum together with its human host from primate ancestors. in this paper, we present phylogenetic analyses of three different plasmodium genes, the nuc ...200717393186
the effects of hypoxia on infections with plasmodium cathemerium. 195513286478
drug, host and parasite interrelationships in the treatment of avian malaria (plasmodium cathemerium in canaries). 195214917885
observations on the pre-erythrocytic stages of plasmodium relictum, plasmodium cathemerium, and plasmodium gallinaceum in various birds. 195114803745
the reproductive behavior of plasmodium cathemerium in duck and chick embryos. 195813539707
the infection of anopheles quadrimaculatus, a human malaria vector, with plasmodium cathemerium, an avian malaria parasite. 195313092378
[the quantitative analysis of effects of exogenous and endogenous factors on sporozoites and tissue forms of malaria in small animals (plasmodium cathemerium, p. berghei yoelii)]. 19704923302
[effects of plasmodium cathemerium on the free amino acids and the egg numbers of culex pipiens fatigans (author's transl)]. 19734778579
the effect of antibiotics on experimental malaria (plasmodium cathemerium and plasmodium berghei). 195212996741
[the metabolism of c14-labeled phenylalanine and tyrosine in malaria-infected culex females (author's transl)].1. culex females are fed on c14-phenylalanine or c14-tyrosine in sugar solution. autoradiographic studies on homogenated females 1 or 4 days after feeding, show that the labeled amino acids are metabolized on the first day and are not detectable on the fourth day. 2. after increase of the amino acid concentration by saturation of the sugar solution with the unlabeled amino acid, the labeled acid and its metabolites are visable over a longer period of time. 3. phenylalanine is metabolized to tyro ...19751170696
skeletal muscle ultrastructural pathology in serinus canarius infected with plasmodium cathemerium.serinus canarius infected with plasmodium cathemerium was used as an animal model in order to study the skeletal muscle compromise in malaria. pectoral muscle biopsies were obtained from 7 infected female birds. the transmission electron microscopic study showed alterations of contractile and sarcotubular systems, mitochondrial abnormalities, lysosomal proliferation and nuclear pyknosis. the sarcolemma looked disrupted and separated from the necrotic fibres. capillary abnormalities included endo ...19968929630
role of the micropore in nutrition of the sporozoa. ultrastructural study of plasmodium cathemerium, eimeria ferrisi, e. stiedai, besnoitia jellisoni, and frenkelia sp. 1976821187
standardization of a test for antimalarial effect with plasmodium cathemerium in the canary. 194720263114
[experimental infection of canaries with plasmodium cathemerium hartman, 1927, by bites of infected mosquitoes (culex pipiens l) and by inoculation of isolated sporozoites]. 19685731191
the prevention of sporozoite-induced infections of plasmodium cathemerium in the canary by metachloridine. 194620996730
pamaquine naphthoate, quinacrine hydrochloride, and quinine bisulfate as curative agents in plasmodium cathemerium infections of the duck. 194621064461
[mortality of culex pipiens fatigans following infection with plasmodium cathemerium]. 19734714368
[culex pipiens fatigans: labeling of tissues of normal and infected (plasmodium cathemerium) females after feeding on tritiated amino acids (author's transl)].normal and infected culex females were fed 11 different amino acids. these substances were labeled with tritium and each was given separately in glucose solution. after the uptake the marker appears first in crop, cardia and midgut. later on the other tissues get labeled more or less. it seems that the labeling follows a characteristic pattern for each amino acid. essential amino acids are taken up intensively; for example leucine not only in the midgut epithelium but also in the ovary and the f ...1977848081
radical cure of avian malaria (plasmodium cathemerium) with sn 8557, a naphthoquinone derivative. 194720292223
blood parasites, body condition, and wing length in two subspecies of yellow wagtail (motacilla flava) during migration.blood parasites of migrating yellow wagtails of two subspecies--motacilla flava feldegg and motacilla flava flava-were studied on a sample of 473 birds caught in spring and autumn periods in bulgaria. we controlled eight "migration waves" (flocks captured in different evenings) of yellow wagtails for four parameters--average body mass, average fat level, average wing length, and average prevalence of different hematozoan species. gametocytes or meronts of a total of six species of hematozoa belo ...201222278726
a method to preserve low parasitaemia plasmodium-infected avian blood for host and vector infectivity assays.avian malaria vector competence studies are needed to understand more succinctly complex avian parasite-vector-relations. the lack of vector competence trials may be attributed to the difficulty of obtaining gametocytes for the majority of plasmodium species and lineages. to conduct avian malaria infectivity assays for those plasmodium spp. and lineages that are refractory to in vitro cultivation, it is necessary to obtain and preserve for short periods sufficient viable merozoites to infect naï ...201626969510
outbreak of avian malaria associated to multiple species of plasmodium in magellanic penguins undergoing rehabilitation in southern brazil.avian malaria is a mosquito-borne disease caused by plasmodium spp. avian plasmodia are recognized conservation-threatening pathogens due to their potential to cause severe epizootics when introduced to bird populations with which they did not co-evolve. penguins are considered particularly susceptible, as outbreaks in captive populations will often lead to high morbidity and rapid mortality. we used a multidisciplinary approach to investigate an outbreak of avian malaria in 28 magellanic pengui ...201424736326
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