A comparison of the surface and secretions of Trichinella pseudospiralis and T. spiralis.

abstract：:The development of resistance in mice to reinfection with Schistosoma mansoni was recorded during an early chronic infection, and compared with hepatic portal pathological and vascular changes. The latter were assessed using a microsphere injection technique. The degree of acquired resistance was directly dependent on...

journal_title：Parasitology

authors： McHugh SM,Coulson PS,Wilson RA

更新日期：1987-02-01 00:00:00

abstract：:Interferon-gamma (IFN-gamma) has a crucial role for host defence against parasite infection. It is not clear, however, how IFN-gamma affects the parasite-infected host cells. The effect of IFN-gamma on Neospora caninum-infected cells was investigated in murine fibroblasts and canine kidney cells in vitro. In the prese...

journal_title：Parasitology

authors： Nishikawa Y,Mishima M,Nagasawa H,Igarashi I,Fujisaki K,Otsuka H,Mikami T

更新日期：2001-07-01 00:00:00

abstract：:Susceptability of Ascaridia galli to benzimidazole (BZ) was investigated using faecal egg count reduction test (FECRT), in ovo larval development test (LDT) and genetic markers (mutations at codons 167, 198 and 200 of β-tubulin gene). Six flocks (F1-F6) of a commercial laying hen farm with different number of exposure...

journal_title：Parasitology

authors： Tarbiat B,Jansson DS,Tydén E,Höglund J

更新日期：2017-09-01 00:00:00

abstract：:An immunochromatographic test (ICT), using recombinant truncated P50 (P50t), for the detection of antibodies to Babesia gibsoni was developed and evaluated. Whereas all sera from specific pathogen-free dogs were clearly negative, all sera from dogs experimentally infected with B. gibsoni were clearly positive in the I...

journal_title：Parasitology

authors： Verdida RA,Xuan X,Fukumoto S,Huang X,Zhou J,Igarashi I,Claveria FG,Nagasawa H

更新日期：2005-12-01 00:00:00

abstract：:The phenotypic activity of two 5-nitroindazolinones, i.e. 2-benzyl-1-propyl (22) and 2-benzyl-1-butyl (24) derivatives, previously proposed as anti-Trypanosoma cruzi prototypes, was presently assayed on bloodstream trypomastigotes (BT) of the moderately drug-resistant Y strain. Further exploration of putative targets ...

journal_title：Parasitology

authors： Fonseca-Berzal C,DA Silva CF,Menna-Barreto RF,Batista MM,Escario JA,Arán VJ,Gómez-Barrio A,Soeiro Mde N

更新日期：2016-09-01 00:00:00

abstract：:A study carried out on a sheep farm examined whether Toxoplasma gondii foetal infection and associated abortion occur in successive lambings. We identified 29 ewes that gave birth to lambs on at least 2 successive years over our study period, 2000-2003. Tissue samples from the progeny of these ewes were analysed by PC...

journal_title：Parasitology

authors： Morley EK,Williams RH,Hughes JM,Thomasson D,Terry RS,Duncanson P,Smith JE,Hide G

更新日期：2008-02-01 00:00:00

abstract：:Infections with Haemonchus contortus are a major constraint on ruminant health world-wide. Young lambs are very sensitive to Haemonchus infection. Older lambs and sheep acquire immunity after a continuous or seasonal exposure to the parasite. The mechanisms underlying immunity are still not completely understood. Anti...

journal_title：Parasitology

authors： Schallig HD

更新日期：2000-01-01 00:00:00

abstract：:Toxoplasma gondii is an obligate intracellular protozoan parasite. The objective of the present study was to examine the behaviour of Toxoplasma gondii RH Ankara strain tachyzoites in a cell culture environment. The study represents the first step in determining whether T. gondii RH Ankara strain tachyzoites, grown in...

journal_title：Parasitology

authors： Döskaya M,Degirmenci A,Ciçek C,Ak M,Korkmaz M,Gürüz Y,Uner A

更新日期：2006-03-01 00:00:00

abstract：:The sequence of appearance of specific lytic activity against more than 20 variable antigen types (VATs) of Trypanosoma vivax in the serum of 27 animals belonging to 5 species has been examined. For each host species there was a characteristic course of infection, with differences in height and duration of parasitaemi...

journal_title：Parasitology

authors： Barry JD

更新日期：1986-02-01 00:00:00

abstract：:A rapid, visually read, dot-ELISA developed for the detection and differentiation of trypanosome species in tsetse flies (Glossina spp.), was field tested alongside the standard fly dissection method on a range in south eastern Kenya. Of 104 G. pallidipes dissected, 2 were found to be infected with trypanosomes in the...

journal_title：Parasitology

authors： Bosompem KM,Masake RA,Assoku RK,Opiyo EA,Nantulya VM

更新日期：1996-02-01 00:00:00

abstract：:A delayed gamma distribution satisfactorily described the distribution of times to hatching of Ostertagia circumcincta eggs incubated in 0.1% saline at temperatures between 6 and 20 degrees C. Below 6 degree C hatching of eggs was extremely variable. The relationship between rates of development and temperature within...

journal_title：Parasitology

authors： Young RR,Anderson N,Overend D,Tweedie RL,Malafant KW,Preston GA

更新日期：1980-12-01 00:00:00

abstract：:In this study, we describe the molecular analysis of zinc-metalloproteases from the abomasal nematode Ostertagia ostertagi which were exclusively recognized by local antibodies of immune cattle. Full-length or partial coding sequences of 4 different zinc-metalloprotease cDNAs of Ostertagia (met-1, -2, -3 and -4) were ...

journal_title：Parasitology

authors： De Maere V,Vercauteren I,Geldhof P,Gevaert K,Vercruysse J,Claerebout E

更新日期：2005-01-01 00:00:00

abstract：:A recombinant baculovirus-expressed hybrid protein containing epitopes for the C-terminal fragment of the Plasmodium falciparum precursor to the major merozoite surface antigens (PMMSA) and the tetrapeptide repeats of the circumsporozoite protein (CSP) was assessed for its immunogenicity. Murine MHC-II restriction of ...

journal_title：Parasitology

authors： Lockyer MJ,Cooper H,Tite J,Rowan W,Crowe JS

更新日期：1993-06-01 00:00:00

abstract：:The snail Bulinus nasutus 1214 possesses a potent haemagglutinin (end-point titre with human erythrocytes, 2(-18)) in its cell-free haemolymph which also binds to the miracidia (but not other larvae) of the incompatible parasite Schistosoma margrebowiei. We have purified a protein possessing this haemagglutinating pro...

journal_title：Parasitology

authors： Harris RA,Preston TM,Southgate VR

更新日期：1993-02-01 00:00:00

abstract：:Increased permeability of capillaries and venules, labelled with colloidal carbon, was observed in the superficial mucosa of the small intestine of sheep infected with Trichostrongylus colubriformis. The labelled vessels were restricted to infected portions of the gut, and the intensity of labelling appeared to be re...

journal_title：Parasitology

authors： Barker IK

更新日期：1975-04-01 00:00:00

abstract：:Chemotactic responses of Strongyloides stercoralis infective larvae (L3) to sodium chloride (NaCl) were investigated by recording larval tracks on a saline gradient in agarose. On agarose, larvae migrated randomly, whereas when placed at 0.01 m NaCl larvae moved to approximately 1.1 m NaCl where they turned, headed do...

journal_title：Parasitology

authors： Forbes WM,Ashton FT,Boston R,Schad GA

更新日期：2003-08-01 00:00:00

abstract：:Parasite transmission can be altered via the removal of parasites by the ambient communities in which parasite-host interactions take place. However, the mechanisms driving parasite removal remain poorly understood. Using marine trematode cercariae as a model system, we investigated the effects of consumer and host bo...

journal_title：Parasitology

authors： Welsh JE,Hempel A,Markovic M,van der Meer J,Thieltges DW

更新日期：2019-03-01 00:00:00

abstract：:The epidemiological and ecological processes which govern the success of multiple-species co-infections are as yet unresolved. Here we investigated prior versus late residency within hosts, meaning which parasite contacts the host first, to determine if the outcomes of intra-host competition are altered. We infected a...

journal_title：Parasitology

authors： Lohr JN,Yin M,Wolinska J

更新日期：2010-09-01 00:00:00

abstract：:In recent years, through a national programme for schistosomiasis control, this infection has been eliminated from Iran. The aim of this study was to report the process of significant decrease of urogenital schistosomiasis in southwestern Iran. During national programme surveillance for urogenital schistosomiasis cont...

journal_title：Parasitology

authors： Khademvatan S,Salmanzadeh S,Foroutan-Rad M,Ghomeshi M

更新日期：2016-09-01 00:00:00

abstract：:Recent studies of the forces behind the diversification of parasite assemblages have shed light on many aspects of parasite biodiversity. By using only parasite species richness as their measure of diversity, however, previous investigations have ignored the relatedness among parasite species and the taxonomic structu...

journal_title：Parasitology

authors： Luque JL,Mouillot D,Poulin R

更新日期：2004-06-01 00:00:00

abstract：:A molecular approach was used to genetically characterize 5 species (Aoruroides queenslandensis, Blattophila sphaerolaima, Cordonicola gibsoni, Desmicola ornata and Leidynemella fusiformis) belonging to the superfamily Thelastomatoidea (Nematoda: Oxyurida), a group of pinworms that parasitizes terrestrial arthropods. ...

journal_title：Parasitology

authors： Jex AR,Hu M,Rose HA,Schneider M,Cribb TH,Gasser RB

更新日期：2006-07-01 00:00:00

abstract：:A guinea-pig immunoglobulin-G linked agarose column was used to detect the immunoglobulin-G binding proteins (IGBP) in the ixodid ticks, Rhipicephalus appendiculatus, Amblyomma variegatum and Ixodes hexagonus. IGBPs were found in salivary gland extract (SGE) of the unfed ticks of all 3 species. The sizes of the IGBPs,...

journal_title：Parasitology

authors： Wang H,Nuttall PA

更新日期：1995-08-01 00:00:00

abstract：:An electron microscopical study was made on the development of Eimeria dispersa in the small intestine of the domestic turkey. Turkey poults, 10-14 days of age, were inoculated with oocysts and pieces of intestinal tissue were fixed at intervals between 3.5 and 114 h after inoculation. Sporozoites were occasionally se...

journal_title：Parasitology

authors： Millard BJ,Lawn AM

更新日期：1982-02-01 00:00:00

abstract：:The glycogen stores of adult Schistosoma mansoni worms could be labelled by incubation of the worms, after an initial reduction of their glycogen content, in the presence of [6-14C]glucose. Subsequent breakdown of the labelled glycogen by the parasite revealed that glycogen was degraded to lactate and carbon dioxide. ...

journal_title：Parasitology

authors： Tielens AG,Celik C,Van den Heuvel JM,Elfring RH,Van den Bergh SG

更新日期：1989-02-01 00:00:00

abstract：:Given the worldwide decline of amphibian populations due to emerging infectious diseases, it is imperative that we identify and address the causative agents. Many of the pathogens recently implicated in amphibian mortality and morbidity have been fungal or members of a poorly understood group of fungus-like protists, ...

journal_title：Parasitology

authors： Raffel TR,Bommarito T,Barry DS,Witiak SM,Shackelton LA

更新日期：2008-02-01 00:00:00

abstract：:Giardia lamblia localize and multiply in the small intestine and may cause acute or chronic diarrhoea with malabsorption of fat, protein and other nutrients. Abnormal pancreatic function has been documented in giardiasis and trophozoites directly inhibit pancreatic lipase activity in vitro. The aim of this study was t...

journal_title：Parasitology

authors： Seow F,Katelaris P,Ngu M

更新日期：1993-04-01 00:00:00

abstract：:An M13 phage random 12-mers peptide library was used to screen cathepsin L mimotopes of Fasciola hepatica and to evaluate their immunogenicity in sheep. Seven clones showed positive reactivity to a rabbit anti-cathepsin L1/L2 antiserum in ELISA, and their amino acid sequences deduced by DNA sequencing were tentatively...

journal_title：Parasitology

authors： Villa-Mancera A,Quiroz-Romero H,Correa D,Ibarra F,Reyes-Pérez M,Reyes-Vivas H,López-Velázquez G,Gazarian K,Gazarian T,Alonso RA

更新日期：2008-10-01 00:00:00

abstract：:This paper reviews naturally occurring and synthetic compounds that either enhance immune defences or lower both natural and acquired immunity. Immunomodulatory agents used both for laboratory study and clinically for the management of immunologically based diseases are considered. ...

journal_title：Parasitology

authors： Nüssler AK,Thomson AW

更新日期：1992-01-01 00:00:00

abstract：:Cryptosporidia are important protozoan parasites of vertebrates, and a number of species and genotypes, with different host ranges, have been described. In this study a protocol was established for the detection and the genetic characterization of Cryptosporidium spp. isolated from various types of surface waters (riv...

journal_title：Parasitology

authors： Ward PI,Deplazes P,Regli W,Rinder H,Mathis A

更新日期：2002-04-01 00:00:00

abstract：:We present observational and experimental evidence that cycles of the Lyme disease spirochaete, Borrelia burgdorferi s.l., can be maintained by sheep in the virtual absence of alternative hosts. A 2-year field study in upland moorland habitats of northwest UK established that sheep feed up to 80% of larval, > 99% of n...

journal_title：Parasitology

authors： Ogden NH,Nuttall PA,Randolph SE

更新日期：1997-12-01 00:00:00