Abstract：
:Groups of five rats each were infected with metacercariae of Fasciola hepatica according to two experimental procedures. In the first experiment, they received 20 metacercariae 0, 1, 2 or 3 times at intervals of 4 weeks. In the second, both the inoculation dose and the interval between doses were varied. After the animals had been killed, the small intestine was prepared for histology and tissue sections were stained for the detection and quantification of mucosal mast cells (MMCs), eosinophils and goblet cells. The density of eosinophils and MMCs increased significantly with each reinfection in the first experiment; in the second, the MMC reaction reached a peak at 4 weeks post-infection (p.i.), whereas the eosinophils peaked at 4 and 17 weeks p.i. In addition, the reaction of these cells depended on the infectious dose. In both experiments, goblet cells reacted only weakly. These findings thus clearly reflect a considerable intestinal response against migrating juvenile F. hepatica. The pattern of these defence reactions in the small intestine suggests some similarities with the mechanisms of antibody-dependent cell-mediated cytotoxicity that have been shown to take place during Schistosoma mansoni reinfection.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Charbon JL,Spähni M,Wicki P,Pfister Kdoi
10.1007/BF00931639subject
Has Abstractpub_date
1991-01-01 00:00:00pages
425-9issue
5eissn
0932-0113issn
1432-1955journal_volume
77pub_type
杂志文章abstract：:The induction of protective immunity to Leishmania amazonensis was investigated by injection of parasite clones of low and medium virulence into susceptible mice. To this end, L. amazonensis were cloned by limiting dilution and the clones' virulence was evaluated by the course of infection in susceptible mice. Clones ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050321
更新日期：1997-01-01 00:00:00
abstract：:We tested whether biogeographic patterns characteristic of species diversity and composition may also apply to community assembly by investigating geographic variation in the pattern (PSA) (aggregation versus segregation) and strength of species associations (SSA) in flea and mite communities harbored by small mammali...
journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2019-04-01 00:00:00
abstract：:Infections with the metastrongyloid nematode Aelurostrongylus abstrusus in cats have been reported sporadically from Germany. To assess the occurrence and regional geographical distribution of A. abstrusus in Germany, faecal samples from 391 cats with symptoms of respiratory disease were collected from December 2009 t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-012-3207-0
更新日期：2013-02-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-006-0448-9
更新日期：2007-06-01 00:00:00
abstract：:Precise identification of members of the genus Diplostomum is difficult in that many larval stages have been described and named separately from their adult forms. In this study, the life cycles of two Diplostomum spp. were established using metacercariae obtained from the eyes of rainbow trout. The parasites were ide...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00931794
更新日期：1995-01-01 00:00:00
abstract：:Morphology of capsules surrounding acanthocephalan Corynosoma strumosum in paratenic hosts (sea fishes of three species from the northern part of the Sea of Okhotsk) was studied. A thick layer of glycocalyx is formed on the surface of acanthocephalan's tegument in smelts Osmerus mordax dentex and Hypomesus olidus; the...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-2088-3
更新日期：2011-02-01 00:00:00
abstract：:The proboscis apex of the eoacanthocephalan parasite Paratenuisentis ambiguus was studied, using electron and light microscopy, for a better understanding of the parasite's attachment at the intestinal wall of its definitive hosts (Anguilla rostrata and A. anguilla). The results suggest the presence of an epidermis co...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/pl00008583
更新日期：2001-04-01 00:00:00
abstract：:The internal transcribed spacer (ITS) region was used to study the intraspecies variation of Brugia spp. in cat reservoirs. Blood specimens from seven naturally infected cats were collected from two different geographical brugian-endemic areas in Thailand. The DNAPAR tree of these Brugia spp. was constructed using a m...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1352-x
更新日期：2009-06-01 00:00:00
abstract：:We have investigated how knowledge of endoplasmic reticulum (ER) retrieval signals can be used to study specific trafficking pathways in the malaria-infected erythrocyte. We show that addition of various lumenal ER retrieval signals to soluble green fluorescent protein (GFP) chimaera causes retrieval of the fusion pro...
journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2009-06-01 00:00:00
abstract：:Recent studies regarding the harmful effects of synthetic larvicides initiated the need to investigate for unconventional measures that are environmentally safe and target-specific against Aedes aegypti larvae. Thus, the main objectives of the study are to evaluate the larvicidal toxicity of the solvent fractions of A...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4598-5
更新日期：2015-10-01 00:00:00
abstract：:Supplementary feeding is widely used in game management but may aid the transmission of parasites. Firstly, feeding sites attract animals and may be regarded as high-risk areas for parasite transmission. Secondly, high host population densities resulting from and supported by supplementary feeding, as well as accumula...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-017-5512-0
更新日期：2017-08-01 00:00:00
abstract：:Studies of the immune response in chronic helminth infections suggest that parasites modulate the host's immune response. Taenia solium metacestodes, in particular, produce molecules that down-regulate cell-mediated immunity. We have described a small RNA peptide termed metacestode factor (MF) that depresses the murin...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050367
更新日期：1998-01-01 00:00:00
abstract：:The overall risk for toxoplasmosis in meat produced in Colombia is unknown. We analyzed by PCR assay meat samples for human consumption in two types of plants in Colombia: 120 samples from class I plants (60 samples from chicken, 30 from swine and 30 from beef) and 60 from class II plants (30 samples from beef and 30 ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4790-7
更新日期：2016-02-01 00:00:00
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journal_title：Parasitology research
pub_type： 更正并重新发布的文章,杂志文章
doi：10.1007/s00436-011-2554-6
更新日期：2011-10-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-008-1235-6
更新日期：2009-02-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5818-6
更新日期：2018-05-01 00:00:00
abstract：:Hepatozoon aegypti Bashtar, Boulos & Mehlhorn, 1984 was first described from the blood of the diadem snake (Spalerosophis diadema) in Egypt. During an investigation of the diversity of reptilian haemogregarines in Saudi Arabia, seven diadem snakes (100% of the sample) were found to be highly parasitised by H. aegypti,...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-6006-4
更新日期：2018-10-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2015-01-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2003-10-01 00:00:00
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journal_title：Parasitology research
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更新日期：2017-03-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2013-04-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-2239-6
更新日期：2011-07-01 00:00:00
abstract：:An in vitro system for studying the transformation of bloodstream forms of Trypanosoma brucei brucei into procylic (midgut) forms is described. In this system, transformation of the parasites was stimulated by Glossina morsitans morsitans midgut homogenates at 27 degrees C but not at 4 degrees C. The transformation-st...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00936174
更新日期：1992-01-01 00:00:00
abstract：:Chagas disease, caused by the protozoan Trypanosoma cruzi (T. cruzi), although discovered more than a century ago, is still a not very well-elucidated aspect. Individuals in the chronic phase of the disease may present asymptomatic clinical form or symptomatologies related to the cardiac, digestive systems, or both (m...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-019-06377-9
更新日期：2019-08-01 00:00:00
abstract：:Thus far, Entamoeba species have been classified based on morphology such as the number of nuclei in mature cysts and their hosts. Using recently developed molecular tools, ruminant Entamoeba spp. are currently classified into four species/genotypes: E. bovis and Entamoeba ribosomal lineages (RL) 1, 2, and 4. However,...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-017-5689-2
更新日期：2018-01-01 00:00:00
abstract：:Balantidium coli is a ciliated protozoon inhabiting the colon of swine, rodents, horses, nonhuman primates and humans. In association with disease triggered by other infectious agents, B. coli may become a pathogenic opportunist. This study describes the isolation, cultivation, morphological as well as molecular chara...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1673-9
更新日期：2010-01-01 00:00:00
abstract：:This experimental study on pigs was designed to simulate natural, long-term exposure to Ascaris suum under modern management conditions. Parasite kinetics were followed in pigs receiving A. suum eggs as repeated trickle inoculations at two dose levels beginning at a body weight of 25 kg until their slaughter at 90 kg ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00931733
更新日期：1992-01-01 00:00:00
abstract：:Chicken coccidiosis is a major parasitic disease caused by Eimeria spp. It is controlled and treated using chemical anticoccidial agents. Development of partial or complete resistance toward these anticoccidials is considered a major problem in poultry industry. Allicin is an organosulfur compound produced as a result...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4637-2
更新日期：2015-10-01 00:00:00
abstract：:The development of the metacestode stages of Arostrilepis microtis (Eucestoda: Hymenolepididae) studied on the basis of an experimental infection of springtails (Collembola: Entomobryidae) is described for the first time. A complete description of the ontogeny from oncosphere to fully a developed metacestode is given....
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5929-0
更新日期：2018-08-01 00:00:00
abstract：:The purpose of this paper is to disseminate, more widely, certain historically important aspects of research by O. Wilford Olsen on hookworms (Uncinaria lucasi) in northern fur seals (Callorhinus ursinus) and Steller sea lions (Eumatopias jubatus) in 1951 on St. Paul Island, Alaska. Highly meaningful facets of the res...
journal_title：Parasitology research
pub_type： 历史文章,杂志文章
doi：10.1007/s00436-005-1309-7
更新日期：2005-03-01 00:00:00
