Abstract：
:A small type of Cryptosporidium oocysts was isolated from a naturally infected cat and its biological nature was investigated. In cats experimentally inoculated with Cryptosporidium oocysts, long-lasting shedding of the oocysts occurred after a prepatent period of 8-10 days, and a number of peaks of oocyst count appeared at intervals of several days to a few weeks, earlier in the infection course. Cryptosporidium infection in cats is likely to pass from an acute to a chronic stage. During the chronic stage, prednisolone injection into the cats gave rise to a recurrence of proliferation of the parasite along with a marked increase in the number of oocysts shed. None of the infected cats showed clinical symptoms. Infection experiments using Cryptosporidium oocysts were unsuccessful in several species of animals such as mice, rats, guinea pigs, dogs, suckling mice and mice previously injected with prednisolone or hydrocortisone.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Asahi H,Koyama T,Arai H,Funakoshi Y,Yamaura H,Shirasaka R,Okutomi Kdoi
10.1007/BF00930864subject
Has Abstractpub_date
1991-01-01 00:00:00pages
237-40issue
3eissn
0932-0113issn
1432-1955journal_volume
77pub_type
杂志文章abstract：:The histopathological examination of 11 mesenteric lymph nodes from adult sheep infected with immature stages of Linguatula serrata revealed acute and chronic lesions with the presence of bacterial colonies and yeast cells. Bacteria were mainly present in acute, hemorrhagic, or necrotic lesions while yeast cells were ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-008-0951-2
更新日期：2008-05-01 00:00:00
abstract：:The pathogenicity of 19 hypocrealean entomopathogenic fungi from seven different genera in adult Aedes aegypti was tested. All fungi proved to be pathogenic, and Isaria fumosorosea, Lecanicillium muscarium, Lecanicillium psalliotae, Metarhizium anisopliae, Metarhizium lepidiotae, Metarhizium majus, Metarhizium frigidu...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-1991-y
更新日期：2010-10-01 00:00:00
abstract：:Nested PCR was used as a diagnostic tool to investigate the presence of Echinococcus multilocularis tapeworm in protected species of carnivores in Slovakia. Twenty-three faecal samples from wolves, four samples from bears and three samples from lynx from the Muránska Planina mountains and eight samples from wolves fro...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360100452
更新日期：2001-10-01 00:00:00
abstract：:Our previous in vivo studies on angiostrongyliasis showed that PF1022A had stronger killing effects against female adults than against males. No killing effects were observed against young adult worms in the central nervous system. To characterize the former in vivo action of PF1022A, in vitro effects of PF1022A on th...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050301
更新日期：1997-01-01 00:00:00
abstract：:The experimental transmission of a recently identified new Theileria (China 1) species pathogenic for sheep and goats in northern China is described. Haemaphysalis qinghaiensis nymphs and adults developed from larvae and nymph engorged on sheep infected with Theileria sp. (China 1) were able to respectively transmit t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0509-8
更新日期：2007-08-01 00:00:00
abstract：:The levels of parasite-specific IgG1 and IgG2 antibodies and mitogen-induced and parasite-specific proliferative T-cell responses were determined in Litomosoides sigmodontis-infected Mastomys coucha throughout an observation period of 400 days post infection (p.i.). These were compared with the respective reactions in...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050018
更新日期：2000-02-01 00:00:00
abstract：:A seasonal investigation on the occurrence of fishborne zoonotic trematodes (FZT) in economically important mono-cultured hybrid catfish and giant gouramy was conducted in the Mekong Delta of Vietnam. Fish from carp poly-culture and intensive small-scale integrated vegetable-aquaculture-animal husbandry farming (VAC) ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0633-5
更新日期：2007-10-01 00:00:00
abstract：:The time-course of the detection of circulating and urinary filarial antigens was followed with a 2S-IRMA assay, using a mouse monoclonal antibody raised against Brugia malayi larvae, in Mastomys natalensis experimentally infected with Brugia malayi, Brugia pahangi, or Litomosoides carinii. In the prepatent phase of t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00536033
更新日期：1987-01-01 00:00:00
abstract：:Nematodes of the family Aspidoderidae (Nematoda: Heterakoidea) Freitas 1956 are widely distributed from Americas. The species of the genus Aspidodera Railliet and Henry 1912 are parasites of mammals of the orders Edentata, Marsupialia, and Rodentia. In the present work, Aspidodera raillieti (L. Travassos, Mem Inst Osw...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0641-5
更新日期：2007-10-01 00:00:00
abstract：:Spermiogenesis and the spermatozoon ultrastructure of the cestode Nippotaenia mogurndae Yamaguti et Myiata, 1940 (Nippotaeniidea), a parasite of Perccottus glenii Dubowski, 1877 (Perciformes: Odontobutidae), have been investigated by means of transmission electron microscopy, cytochemical staining with periodic acid-t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4327-0
更新日期：2015-04-01 00:00:00
abstract：:More than 30 species of coccidian parasites have been described in Chelonidae (tortoises and turtles). Eimeria spp. are apparently the most common coccidia in chelonians. Findings of Caryospora cheloniae, Isospora sp., and Mantonella sp. have also been published, but reports about systemic coccidiosis are rare. We des...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0781-7
更新日期：2008-02-01 00:00:00
abstract：:Ras are key components of diverse signal transduction pathways and play important roles in growth and development. To know about growth regulation in Clonorchis sinensis, we have identified a full-length sequence encoding a ras-related protein (rap2) from our adult cDNA library. The open reading frame contains 561 bp ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-2147-9
更新日期：2011-04-01 00:00:00
abstract：:Amphibian populations are declining around the world, and the main reasons are the environmental changes and pathogens. However, there are few studies addressing the interaction and impact of the different pathogens that affect amphibians, such as hemoparasites. These parasites had been described as common in some amp...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-020-06689-1
更新日期：2020-06-01 00:00:00
abstract：:Trypanosoma cruzi virulence factors include molecules expressed on the cell surface as well as those secreted or shed into the extracellular medium. Phosphatase activities modulate different aspects of T. cruzi infection, although no studies to date addressed the presence and activity of phosphatases in vesicles secre...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-014-3958-x
更新日期：2014-08-01 00:00:00
abstract：:Amastigotes of Leishmania species belonging to the Leishmania mexicana complex exhibit large lysosomes, called megasomes, which are rich in cysteine proteinases. Various aspects of the host-parasite interaction, the differentiation process as well as intracellular survival, have been attributed to these proteinases. T...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-001-0516-0
更新日期：2002-04-01 00:00:00
abstract：:Cryptosporidium and Giardia are ubiquitous parasites that infect humans and animals. Few reports are available on the prevalence of these two protozoan parasites in yaks (Bos grunniens). In this study, 344 faecal samples were collected from yaks with diarrhoea in the Chenduo and Nangqian counties of Qinghai Province, ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5861-3
更新日期：2018-06-01 00:00:00
abstract：:Turkey's tick fauna is composed of about 32 species in two families and ten genera in mammals, reptiles, and birds. The ticks of veterinary significance in the family Ixodidae comprise seven genera with 28 different species. Ixodes spp. are mostly seen in northern Turkey. It is likely that the high rainfall and the in...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0694-5
更新日期：2007-09-01 00:00:00
abstract：:Blastocystis hominis has been reclassified as a protozoan parasite. Its role as a human pathogen is somewhat controversial. There has been a dramatic increase in the frequency of B. hominis infection in association with diarrhea especially in immunocompromised hosts like AIDS patients, travelers, homosexuals, day care...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-013-3652-4
更新日期：2014-01-01 00:00:00
abstract：:In frozen sections of the acanthocephalan Pomphorhynchus laevis, which is a frequent intestinal parasite of cyprinid and salmonid fishes, leucine aminopeptidase (APase) was localized histochemically in outer parts of the presomal bulbus as well as in all layers and most nuclei of the metasomal body wall. Enzyme activi...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00932697
更新日期：1994-01-01 00:00:00
abstract：:The volatile metabolites of Greek wild growing Thymus leucospermus and Thymus teucrioides subsp. candilicus were determined by gas chromatography and gas chromatography-mass spectrometry. The monoterpene hydrocarbon p-cymene (64.2%) dominated T. leucospermus oil, followed by γ-terpinene (7.9%), thymol (4.8%), and born...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2271-1
更新日期：2011-08-01 00:00:00
abstract：:Rodents are intermediate hosts for many species of Sarcocystis. Little is known of Sarcocystis cymruensis that uses the Brown rat (Rattus norvegicus) as intermediate hosts and the domestic cat (Felis catus) as experimental definitive host. Here, we identified and described Sarcocystis cymruensis in naturally infected ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5799-5
更新日期：2018-04-01 00:00:00
abstract：:The larvicidal activities of methanolic fractions from Adhatoda vasica leaf extracts were investigated against the bancroftian filariasis vector Culex quinquefasciatus and dengue vector Aedes aegypti. The results indicated that the mortality rates was high at 100, 150, 200 and 250 ppm of methanol extract of fractions ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2728-2
更新日期：2012-05-01 00:00:00
abstract：:The existing armament of drugs for the treatment and prevention of malaria is inadequate due to development of resistance. In addition to this due to lack of economic enticement the rate of new drug development and new drug discovery in the segment of parasitic diseases is very low as compared to the other segments. T...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-1789-y
更新日期：2010-05-01 00:00:00
abstract：:The narrow Andean-Patagonian temperate rainforest strip in the west of southern South America is inhabited by two endemic species of cervids, the southern pudu (Pudu puda) and the huemul (Hippocamelus bisulcus), both cataloged as near threatened and threatened species, respectively. One of the possible causes of their...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-017-5429-7
更新日期：2017-05-01 00:00:00
abstract：:Culex pipiens pallens is the mosquito vector of a number of human pathogens such as Wuchereria bancrofti, Brugia malayi, and epidemic encephalitis B virus. Female C. pipiens pallens play an important role in transmitting pathogens by sucking blood, which is essential for reproduction. In the present study, a subtracti...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0506-y
更新日期：2007-08-01 00:00:00
abstract：:Light, electron microscopy and DNA analyses were performed to characterize a microsporidium infecting Rachiplusia nu larvae from a laboratory rearing in Argentina. Diplokaryotic spores were oval and measured 3.61 ± 0.29 × 1.61 ± 0.14 μM (fresh). The spore wall was composed of an electron-dense exospore and an electron...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5820-z
更新日期：2018-05-01 00:00:00
abstract：:Thelohania montirivulorum sp. nov., a new species of microsporidian parasite, was found in a highland population of the Australian yabby, Cherax destructor. Data are presented on fine ultrastructure, developmental morphology and DNA sequence of the small subunit ribosomal DNA (SSU rDNA) and internal transcribed spacer...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-003-0948-9
更新日期：2003-10-01 00:00:00
abstract：:In schistosomiasis a systemic hyperplasia of the monomacrophagic cell lineage is associated with its mild modifications in myelograms and hemograms. We monitored the in vitro proliferation of myeloid precursors obtained from bone marrow, blood, spleen, and liver. The macrophage colony-forming unit (M-CFU) numbers were...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050467
更新日期：1998-08-01 00:00:00
abstract：:Malaria remains a serious health problem in many parts of the world. It causes high morbidity and claims many lives in developing countries each year. Humans are generally infected by four species of malaria parasites. However, malaria infection caused by Plasmodium malariae or P. falciparum is recognized as an import...
journal_title：Parasitology research
pub_type： 杂志文章,评审
doi：10.1007/s00436-007-0650-4
更新日期：2007-10-01 00:00:00
abstract：:Ligictaluridus michaelalicea n. sp. (Monogenea: Dactylogyridae, Ancyrocephalinae) is described from the gills of Pylodictis olivaris (Siluriformes: Ictaluridae) from Wisconsin and Iowa portions of the upper Mississippi River. Diagnostic features include a relatively large, strongly curved tubular cirrus with minor ter...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5757-2
更新日期：2018-03-01 00:00:00
