CuZn superoxide dismutase activities from Fasciola hepatica.

abstract：:If the deleterious effects of non-specific parasites are greater on vulnerable host species than on reservoir host species then exclusion of the vulnerable host through apparent competition is more likely. Evidence suggests that such a mechanism occurs in interactions between the ring-necked pheasant (Phasianus colchi...

journal_title：Parasitology

authors： Tompkins DM,Greenman JV,Hudson PJ

更新日期：2001-02-01 00:00:00

abstract：:Strongyloidiasis is frequently asymptomatic and diagnosis of latent infection is difficult due to limitations of current parasitological and serological methods. This study aimed to verify the use of conventional polymerase chain reaction (PCR) assay for molecular diagnosis of Strongyloides stercoralis infection. Fres...

journal_title：Parasitology

authors： Sitta RB,Malta FM,Pinho JR,Chieffi PP,Gryschek RC,Paula FM

更新日期：2014-04-01 00:00:00

abstract：:A distinct 8 kDa calcium-binding protein (CaBP) is preferentially expressed at the cercarial stage during the life-cycle of the schistosome. Available data indicate that this CaBP may be associated with tissue/organ remodelling (involving protein degradation and synthesis of new proteins) during transformation of the ...

journal_title：Parasitology

authors： Ram D,Ziv E,Lantner F,Schechter I

更新日期：2003-10-01 00:00:00

abstract：SUMMARY:The domestic dog's involvement with different members of the Trypanosomatidae family has been the focus of several studies due to this animal's close proximity to man. Recently this animal has been infected by a new Trypanosoma species (T. caninum), described in Rio de Janeiro and 19 similar isolates were later...

journal_title：Parasitology

authors： De S Pinto AG,Schubach TM,Figueiredo FB,Baptista C,Fagundes A,Da S Barros JH,De Paula CC,Toma HK,Madeira MF

更新日期：2010-09-01 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：:A method has been devised to show that malaria parasites can be detected serologically in infected blood with a high degree of sensitivity. Using a murine malaria model, parasites were demonstrated in a solid-phase radio-immunoassay which measured antibody-binding inhibition. Lysed red blood cells (r.b.c.) were incuba...

journal_title：Parasitology

authors： Mackey L,Perrin L,Leemans E,Lambert PH

更新日期：1980-02-01 00:00:00

abstract：:Due to shared characteristics with snail haemocytes, the Biomphalaria glabrata embryonic (Bge) cell line has been used as a model in vitro system for the study of snail-trematode interactions. In this study, Bge cells were used to characterize the adherence of snail host cells to schistosome primary sporocysts, and to...

journal_title：Parasitology

authors： Castillo MG,Yoshino TP

更新日期：2002-12-01 00:00:00

abstract：:The fine structure of the envelopes surrounding hatched and unhatched oncospheres of Hymenolepis nana has been investigated by transmission and scanning electron microscopy (SEM), together with light microscope histochemical observations of JB-4 embedded material. The oncosphere is surrounded by 3 layers--the capsule,...

journal_title：Parasitology

authors： Fairweather I,Threadgold LT

更新日期：1981-06-01 00:00:00

abstract：:A 30-h in vitro susceptibility test of Plasmodium falciparum wild isolates to artemisinin, chloroquine, sulfadoxine/pyrimethamine and mefloquine was performed in Kibaha, Tanzania. A sigmoid Emax model was fitted to all data for each isolate and drug combination. Artemisinin and mefloquine exhibited 100% growth inhibit...

journal_title：Parasitology

authors： Alin MH

更新日期：1997-06-01 00:00:00

abstract：:The lung schistosomulum of Schistosoma mansoni is the target of protective immunity in mice singly vaccinated with irradiated cercariae. Since the effector responses are T cell-mediated, their initiation requires the release of antigens from the intact parasite. We have used the technique of biosynthetic labelling wit...

journal_title：Parasitology

authors： Harrop R,Wilson RA

更新日期：1993-09-01 00:00:00

abstract：:Epidemiological rate parameters of host generalist parasites are difficult to estimate, especially in cases where variation in parasite performance can be attributed to host species. Such cases are likely common for generalist parasites of sympatric grazing mammals. In this study, we combined data from experimental ex...

journal_title：Parasitology

authors： Beck MA,Goater CP,Colwell DD

更新日期：2015-09-01 00:00:00

abstract：:Pinewood nematode, Bursaphelenchus xylophilus, a pine parasitic nematode, poses a serious threat to its host pine forests globally. When dispersal-stage larvae 4 (dauer, DL4) of B. xylophilus enters the new pine, it moults into propagative adult (dauer recovery) and reproduces quickly to kill the host pine. Here, we f...

journal_title：Parasitology

authors： Zhang W,Li Y,Pan L,Wang X,Feng Y,Zhang X

更新日期：2020-01-01 00:00:00

abstract：:The development of a successful vaccine depends not only on the production of the vaccine itself, but also on the design pf the vaccination programme. This involves a better understanding of the epidemiology of the disease to be controlled, the delivery system to be used and the costs involved. This review focuses on ...

journal_title：Parasitology

authors： Bundy DA,Chan MS,Guyatt HL

更新日期：1995-01-01 00:00:00

abstract：:Schistosoma mansoni egg counts by faecal examination vary considerably and are not very sensitive, so prevalences are underestimated. The distribution of egg counts can adequately be described by a stochastic model which distinguishes variation in counts between persons and variation in repeated counts within a person...

journal_title：Parasitology

authors： De Vlas SJ,Engels D,Rabello AL,Oostburg BF,Van Lieshout L,Polderman AM,Van Oortmarssen GJ,Habbema JD,Gryseels B

更新日期：1997-02-01 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

abstract：:Plant cysteine proteinases (CPs) from Carica papaya kill parasitic and free-living nematodes in vitro by hydrolysis of the worm cuticle, a mechanism that is different to all commercially available synthetic anthelmintics. We have developed a cheap and effective, rapid-throughput Caenorhabditis elegans-based assay for ...

journal_title：Parasitology

authors： Phiri AM,DE Pomerai DI,Buttle DJ,Behnke JM

更新日期：2017-04-01 00:00:00

abstract：:Immunization against the protozoan Theileria parva by infection and treatment has proved to be very efficient for the control of East Coast fever, an acute and often-fatal lymphoproliferative tick-borne disease of cattle in Eastern, Central and Southern Africa. The immunizing dose of live T. parva sporozoites used in ...

journal_title：Parasitology

authors： Marcotty T,Speybroeck N,Berkvens D,Chaka G,Besa R,Madder M,Dolan T,Losson B,Brandt J

更新日期：2004-02-01 00:00:00

abstract：:Strongyloides ratti is a parasitic nematode of rats. The host immune response against S. ratti affects the development of its free-living generation, favouring the development of free-living adult males and females at the expense of directly developing, infective 3rd-stage larvae. However, how the host immune response...

journal_title：Parasitology

authors： Crook M,Viney ME

更新日期：2005-09-01 00:00:00

abstract：:Previous studies of mating interactions between schistosome species from different evolutionary lineages in mice showed that mating is not random: heterospecific pairs form but, given the choice, the preference is for homospecific partners. Mating competition and change of mate were also demonstrated. Schistosoma mans...

journal_title：Parasitology

authors： Cosgrove CL,Southgate VR

更新日期：2002-09-01 00:00:00

abstract：:When eggs of the monogenean Dictyocotyle coeliaca, a parasite from the body cavity of Raja naevus, are incubated in alternating 12 h periods of light and darkness at 12 degrees C the marginal hooklets appear between 75 and 90 days after collecting the eggs from the host's body cavity and hatching begins after about 10...

journal_title：Parasitology

authors： Kearn GC

更新日期：1975-02-01 00:00:00

abstract：:In parallel with massive research efforts in human schistosomiasis over the past 30 years, persistent efforts have been made to understand the basis for compatibility and incompatibility in molluscan schistosomiasis. Snail plasma contains molecules that are toxic to trematodes, but these seem to kill only species that...

journal_title：Parasitology

authors： Bayne CJ,Hahn UK,Bender RC

更新日期：2001-01-01 00:00:00

abstract：:Resistance to diclazuril was induced by 10 passages of the Houghton strains of Eimeria acervulina and E. tenella in chickens given progressively greater concentrations of the drug. This resistance was, however, not complete since the drug retained some efficacy against the drug-passaged lines. Attempts to passage the ...

journal_title：Parasitology

authors： Chapman HD

更新日期：1989-10-01 00:00:00

abstract：:The blackcap (Sylvia atricapilla) is a common Palearctic migratory warbler, and haemosporidian parasites are common in this species. However, genetic and phenotypic diversity of haemosporidians in warblers has been insufficiently investigated and poorly linked. We addressed this issue by combining molecular and micros...

journal_title：Parasitology

authors： Krizanauskiene A,Pérez-Tris J,Palinauskas V,Hellgren O,Bensch S,Valkiūnas G

更新日期：2010-02-01 00:00:00

abstract：:Electrophysiological and pharmacological techniques were used to study glutamatergic signalling in the parasitic nematode, Ascaris suum. Glutamate or kainate injections into whole worms produced a paralysed quasi-static posture similar to the waveform in behaving worms. The DE2 motorneuron class is a primary target. S...

journal_title：Parasitology

authors： Davis RE

更新日期：1998-05-01 00:00:00

abstract：:Multiple infections, those by more than one parasite in the same erythrocyte, may be adaptive for the malarial parasite as a means to ensure fertility. Alternatively they may simply be the consequence of a non-adaptive process forcing several parasites to compete for resources in one host cell. Avian hosts infected wi...

journal_title：Parasitology

authors： Martínez-de la Puente J,Merino S,Tomás G,Moreno J,Morales J,Lobato E

更新日期：2006-01-01 00:00:00

abstract：:Kudoid parasites are significant pathogens of marine fish. In the past, specific identification has been difficult due to a paucity of detailed morphological and biological information provided in the original description of some species. However, the introduction of DNA analysis has dramatically improved diagnosis. F...

journal_title：Parasitology

authors： Burger MA,Adlard RD

更新日期：2010-04-01 00:00:00

abstract：:This study describes morphological changes during capsule formation of Trichinella spiralis with emphasis on nuclei within the capsule. The nuclei of the pre-existing muscle cell may become hypertrophied or degrade soon after the entrance of newborn larvae. Cytoplasm associated with these hypertrophied nuclei was baso...

journal_title：Parasitology

authors： Matsuo A,Wu Z,Nagano I,Takahashi Y

更新日期：2000-08-01 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：:Oocysts of Cryptosporidium parvum showed relatively low levels of SOD activity. The SOD which had a pI of 4.8 and an approximate molecular weight of 35 kDa appeared to be iron dependent. Catalase, glutathione transferase, glutathione reductase and glutathione peroxidase activity could not be detected, nor could trypan...

journal_title：Parasitology

authors： Entrala E,Mascaro C,Barrett J

更新日期：1997-01-01 00:00:00

abstract：:Toxoplasma gondii and Sarcocystis neurona are protozoan parasites with terrestrial definitive hosts, and both pathogens can cause fatal disease in a wide range of marine animals. Close monitoring of threatened southern sea otters (Enhydra lutris nereis) in California allowed for the diagnosis of dual transplacental tr...

journal_title：Parasitology

authors： Shapiro K,Miller MA,Packham AE,Aguilar B,Conrad PA,Vanwormer E,Murray MJ

更新日期：2016-03-01 00:00:00