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Clinical Infectious Diseases : An... Jan 1993Microsporidia are obligate intracellular protozoa that parasitize both vertebrates and invertebrates and are now recognized as important pathogens in individuals...
Microsporidia are obligate intracellular protozoa that parasitize both vertebrates and invertebrates and are now recognized as important pathogens in individuals infected with human immunodeficiency virus type 1 (HIV-1). We describe the clinical and morphological features of a case of pleistophora (microsporidian) myositis in a patient with AIDS and delineate the stages of the microsporidian life cycle, as visualized by light and electron microscopy. We discuss significant aspects of microsporidian infections in humans and of myopathy attributable to other causes in HIV-1-infected individuals. As far as we know, ours is only the second reported case of microsporidian myositis and the first reported case in a patient with documented HIV-1 infection.
Topics: AIDS-Related Opportunistic Infections; Adult; Animals; Humans; Male; Microsporida; Microsporidiosis; Muscles; Myositis
PubMed: 8448294
DOI: 10.1093/clinids/16.1.15 -
Parassitologia Dec 1991Parasites of the phylum Microspora are obligatory intracellular protoza with a widespread host range among invertebrates and vertebrates. Species from Nosema,... (Review)
Review
Parasites of the phylum Microspora are obligatory intracellular protoza with a widespread host range among invertebrates and vertebrates. Species from Nosema, Encephalitozoon, Enterocytozoon and Pleistophora genera can infect immunocompetent and immunosuppressed patients. The emergency of the AIDS epidemic has recently highlighted the role of these parasites in human pathology, microsporidian species being a frequent cause of diarrhoea and ocular infections. Recent acquisitions in the taxonomy and life cycle of this parasite group, as well as pathogenesis, immunopathology, clinical aspects, diagnosis, therapy and epidemiology of human microsporidiosis are reviewed and discussed.
Topics: AIDS-Related Opportunistic Infections; Animals; Disease Susceptibility; Humans; Immunocompetence; Immunocompromised Host; Microsporida; Microsporidiosis
PubMed: 1844514
DOI: No ID Found -
Folia Parasitologica 1991In the years 1985-1988, a total of 254 specimens of the roach, Rutilus rutilus, captured in 23 localities of South Bohemia, were examined for the presence of protozoan...
In the years 1985-1988, a total of 254 specimens of the roach, Rutilus rutilus, captured in 23 localities of South Bohemia, were examined for the presence of protozoan parasites. Only 17 specimens (6.7%) were free of infection, whereas the others were infected at least with one parasite species, mixed infections were observed most frequently. The following species were found rarely: Myxidium rhodei Léger, 1905 in the liver and muscles. Pleistophora mirandellae Vaney et Conte, 1901 in ovaries, Trichodina nemachili Lom, 1960 on the skin, Trichodina prowazeki Grupcheva et Lom, 1980 on the skin (the first finding in Czechoslovakia). The data concerning localization of individual parasites and their prevalence are presented and five protozoan species described in detail.
Topics: Animals; Brain; Cyprinidae; Czechoslovakia; Eukaryota; Female; Fish Diseases; Gallbladder; Gills; Intestines; Liver; Ovary; Protozoan Infections; Protozoan Infections, Animal; Skin; Spleen; Urinary Tract
PubMed: 1916526
DOI: No ID Found -
European Journal of Protistology Oct 1989Heterosporis schuberti n.sp. is described from the myocytes of an ornamental fish, Pseudocrenilabrus multicolor (Cichlidae). An apparently identical species was also...
Heterosporis schuberti n.sp. is described from the myocytes of an ornamental fish, Pseudocrenilabrus multicolor (Cichlidae). An apparently identical species was also found in Ancistrus cirrhosus (Loricariidae). Early meronts - uninucleate or plurinucleate - are perhaps responsible for dissemination of the infection throughout the muscle tissue. Later development of the microsporidian takes place in a structure encased with a thick envelope, for which the name sporophorocyst is proposed. At first, it contains merogony stages. Later, sporogony stages appear, too, which eventually prevail until a voluminous sporophorocyst is packed full with sporophorous vesicles with macrospores and rather rare microspores. Pleistophora anguillarumHoshina, 1951 reveals features similar enough to permit its reassignment to the genus HeterosporisSchubert, 1969.
PubMed: 23195872
DOI: 10.1016/S0932-4739(89)80023-9 -
Veterinary Parasitology Jul 1989Selected parasitic zoonoses are discussed with emphasis on epidemiological, diagnostic and some chemotherapeutic aspects. Pneumocystosis, toxoplasmosis,... (Review)
Review
Selected parasitic zoonoses are discussed with emphasis on epidemiological, diagnostic and some chemotherapeutic aspects. Pneumocystosis, toxoplasmosis, cryptosporidiosis and microsporidiosis are briefly reviewed as "AIDS-related zoonoses". Up to now 5 genera of Microsporidia have been identified as causative agents of human infections, including Encephalitozoon cuniculi, Enterocytozoon bieneusi and Pleistophora sp. which were found in AIDS patients. From the many "other parasitic zoonoses", giardiasis, echinococcosis and taeniosis/cysticercosis are discussed as examples. Significant advances in the understanding of transmission dynamics, in strain characterisation and diagnosis of the diseases have been achieved.
Topics: Acquired Immunodeficiency Syndrome; Animals; Cryptosporidiosis; Echinococcosis; Giardiasis; Humans; Parasitic Diseases; Pneumonia, Pneumocystis; Protozoan Infections; Taeniasis; Toxoplasmosis; Zoonoses
PubMed: 2669318
DOI: 10.1016/0304-4017(89)90154-4 -
Boletin Chileno de Parasitologia 1988
Topics: Animals; Chile; Fish Diseases; Gills; Protozoan Infections, Animal; Salmon
PubMed: 3269733
DOI: No ID Found -
Journal of the American Mosquito... Mar 1987Water from a mosquito larval habitat in Florida was collected periodically for one year. After removing debris and macroscopic organisms, the small particles were...
Water from a mosquito larval habitat in Florida was collected periodically for one year. After removing debris and macroscopic organisms, the small particles were concentrated by continuous flow centrifugation and examined microscopically. Anopheles quadrimaculatus, Culex salinarius and Heliothis zea larvae were exposed to the concentrates. The microsporidia isolated were Nosema, Pleistophora, Telomyxa, Vavraia and Vairimorpha. In addition to these microsporidia, a Helicosporidium (Protozoa), a Metarrhyzium (fungi) and two cytoplasmic polyhedrosis viruses were also isolated.
Topics: Animals; Anopheles; Apicomplexa; Culex; Lepidoptera; Seasons; Spores; Water
PubMed: 3144577
DOI: No ID Found -
The Journal of Parasitology Dec 1980
Comparative Study
Topics: Animals; Cytological Techniques; Eukaryota; Methods; Spores
PubMed: 7012293
DOI: No ID Found -
Parazitologiia 1980The microsporidian Pleistophora carpocapsae does not influence the growth, development and mortality of its host--the caterpiller Malacosoma neustria L. On the other... (Comparative Study)
Comparative Study
The microsporidian Pleistophora carpocapsae does not influence the growth, development and mortality of its host--the caterpiller Malacosoma neustria L. On the other hand P. schubergi causes sireous desturbances of the insects functions: stimulation of growth just after the infection, its opression and retardation of development during the next stage of the disease. All this results in the fatal end.
Topics: Animals; Apicomplexa; Body Weight; Insecta
PubMed: 6769082
DOI: No ID Found -
Folia Parasitologica 1980Two new species of microsporidia are reported from the Atlantic marine fishes: Pleistophora duodecimae sp. n. from skeletal musculature of the rat-tail, Coryphaenoides...
Two new species of microsporidia are reported from the Atlantic marine fishes: Pleistophora duodecimae sp. n. from skeletal musculature of the rat-tail, Coryphaenoides nasutus Günther and Glugea capverdensis sp. n. from the intestine, mesentery and ovary of the lantern fish, Myctophum punctatum Rafinesque. Formation of secondary xenomas was observed in the latter species. Both species may inflict serious damage upon their hosts.
Topics: Animals; Apicomplexa; Fishes; Marine Biology
PubMed: 6774932
DOI: No ID Found