Plagiorchis elegans: emergence, longevity and infectivity of cercariae, and host behavioural modifications during cercarial emergence.

abstract：:This study quantifies the rate and intensity of re-infection with human hookworm and Schistosoma mansoni infection 12 months following successful treatment, and investigates the influence of socio-economic, geographical and environmental factors. A longitudinal study of 642 individuals aged over 5 years was conducted ...

journal_title：Parasitology

authors： Cundill B,Alexander N,Bethony JM,Diemert D,Pullan RL,Brooker S

更新日期：2011-09-01 00:00:00

abstract：:Neospora caninum infection is a significant cause of abortion in cattle. We investigated the tissue distribution of N. caninum in aborted bovine fetuses and dam blood samples by a nested PCR assay, and compared the nested PCR with ELISA in the diagnosis of N. caninum infection. In total, 26 aborted fetuses and 813 blo...

journal_title：Parasitology

authors： Yao L,Yang N,Liu Q,Wang M,Zhang W,Qian WF,Hu YF,Ding J

更新日期：2009-09-01 00:00:00

abstract：:In recent years, a malaria infection of humans in South East Asia, originally diagnosed as a known human-infecting species, Plasmodium malariae, has been identified as a simian parasite, Plasmodium knowlesi. This species had been subject to considerable investigation in monkeys since the 1930s. With the development of...

journal_title：Parasitology

authors： Butcher GA,Mitchell GH

更新日期：2018-01-01 00:00:00

abstract：:We examine the evolution of microparasites in response to the immune system of vertebrate hosts. We first describe a simple model for an acute infection. This model suggests that the within-host dynamics of the microparasite will be a 'race' between parasite multiplication and a clonally expanding response by the host...

journal_title：Parasitology

authors： Antia R,Lipsitch M

更新日期：1997-01-01 00:00:00

abstract：:Anti-trypanosomiasis vaccination still remains the best theoretical option in the fight against a disease that is continuously hovering between its wildlife reservoir and its reservoir in man and livestock. While antigenic variation of the parasite surface coat has been considered the major obstacle in the development...

journal_title：Parasitology

authors： Magez S,Caljon G,Tran T,Stijlemans B,Radwanska M

更新日期：2010-12-01 00:00:00

abstract：:A one-year study of gastro-intestinal parasitism in a free-ranging population of maras at Whipsnade Wild Animal Park, UK, revealed a strong relationship between membership of social units and both intensity and prevalence of infection. The mara, a hystricomorph rodent from southern Argentina, has a social organization...

journal_title：Parasitology

authors： Porteous IS,Pankhurst SJ

更新日期：1998-03-01 00:00:00

abstract：:DNA barcoding is now a common tool in parasitology and epidemiology, which require good methods for identification not only of parasites and pathogens but vectors and reservoirs. This special issue presents some advances and challenges in barcoding of microbes, parasites, and their vectors and reservoirs. DNA barcodin...

journal_title：Parasitology

authors： Morand S

更新日期：2018-04-01 00:00:00

abstract：:Understanding disease transmission is important to species management and human health. Host body condition, nutrition and disease susceptibility interact in a complex manner, and while the individual effects of these variables are well known, our understanding of how they interact and translate to population dynamics...

journal_title：Parasitology

authors： Tadiri CP,Dargent F,Scott ME

更新日期：2013-03-01 00:00:00

abstract：:Balb/c mice infected with the gastrointestinal nematode Heligmosomoides bakeri were fed protein sufficient (PS, 24%) or deficient (PD, 3%) diets to investigate whether diet, infection or dose of larval challenge (0, 100 or 200 larvae) influenced gut pathophysiology and inflammation. Among the PS mice, worms were more ...

journal_title：Parasitology

authors： Tu T,Koski KG,Scott ME

更新日期：2008-01-01 00:00:00

abstract：:Traditionally, the family Campulidae has been associated either with the family Fasciolidae, parasites of ruminants, or the Acanthocolpidae, parasites of fishes, based on morphological similarities. Since morphology does not seem to resolve clearly the problem of the relationships of campulids, we have used the sequen...

journal_title：Parasitology

authors： Fernandez M,Littlewood DT,Latorre A,Raga JA,Rollinson D

更新日期：1998-10-01 00:00:00

abstract：:Parasites often induce behavioural changes in their host. However, it is not necessarily easy to determine whether these changes are representative of an adaptation of the parasite (parasite manipulation), an adaptive response of the host or a side-effect of infection. In a solitary parasitoid of Drosophila larvae (Le...

journal_title：Parasitology

authors： Varaldi J,Petit S,Boulétreau M,Fleury F

更新日期：2006-06-01 00:00:00

abstract：:The effect of different incubation media and of temperature on the induction of water sensitivity has been investigated in intact and tailless Schistosoma mansoni cercariae. Removal of the cercarial tail by vortex stirring and elevation of the temperature of the medium from 27 to 37 degrees C resulted in the rapid ons...

journal_title：Parasitology

authors： Ramalho-Pinto FJ,Gazzinelli G,Howells RE,Pellegrino J

更新日期：1975-08-01 00:00:00

abstract：:A multi-subunit antigen (native M(r) > 200 kDa, reduced M(r) 97-100 kDa) has been identified in homogenates of Trichinella spiralis larvae using affinity-purified rabbit anti-keyhole limpet haemocyanin (KLH) antibodies and its cross-reactivity with KLH was confirmed by competition blotting. The antigen was not present...

journal_title：Parasitology

authors： Modha J,Robertson WM,Kennedy MW,Kusel JR

更新日期：1994-11-01 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：:Sequence comparisons have recently shown that the Schistosoma mansoni protein Sm32 is similar to asparaginyl endoproteinases, a novel family of cysteine proteinases, of which the legumains from legumes are the best characterized. By synthesizing and employing fluorogenic peptide substrates for the specific detection o...

journal_title：Parasitology

authors： Dalton JP,Hola-Jamriska L,Brindley PJ

更新日期：1995-12-01 00:00:00

abstract：:Parasites have a major impact on global finfish and shellfish aquaculture, having significant effects on farm production, sustainability and economic viability. Parasite infections and impacts can, according to pathogen and context, be considered to be either unpredictable/sporadic or predictable/regular. Although bot...

journal_title：Parasitology

authors： Shinn AP,Pratoomyot J,Bron JE,Paladini G,Brooker EE,Brooker AJ

更新日期：2015-01-01 00:00:00

abstract：:Cutaneous Leishmaniasis (CL) is considered a neglected tropical disease which in Pakistan can now be considered as a growing public health problem. The exact figures on the magnitude of the disease are lacking both at the national and regional level and only a few health centres are available for diagnosis of CL. The ...

journal_title：Parasitology

authors： Khan A,Sajid R,Gul S,Hussain A,Zehri MT,Naz S,Simsek S,Waseem S,Afzal MS,Naqvi SKUH,Qasim M,Ahmed H

更新日期：2020-12-23 00:00:00

abstract：:Infection with the endosymbiotic bacteria Wolbachia is widespread in filarial nematodes. Previous studies have suggested concordance between the phylogeny of Wolbachia with that of their nematode hosts. However, there is only one published molecular phylogenetic study of filarial species, based on the 5S rRNA gene spa...

journal_title：Parasitology

authors： Casiraghi M,Anderson TJ,Bandi C,Bazzocchi C,Genchi C

更新日期：2001-01-01 00:00:00

abstract：:Trophically transmitted parasites must trade-off own growth on one hand and energy drain from the intermediate host on the other hand, since killing the host before transmission to the next host is a dead end for both parasites and hosts. This challenge becomes especially intriguing when multiple parasites find themse...

journal_title：Parasitology

authors： Nordeide JT,Matos F

更新日期：2016-09-01 00:00:00

abstract：:Infection by larval Echinococcus granulosus is usually characterized by tight inflammatory control. However, various degrees of chronic granulomatous inflammation are also observed, reaching a high point in infection of cattle by the most prevalent parasite strain worldwide, which is not well adapted to this host spec...

journal_title：Parasitology

authors： Basika T,Muñoz N,Casaravilla C,Irigoín F,Batthyány C,Bonilla M,Salinas G,Pacheco JP,Roth J,Durán R,Díaz A

更新日期：2012-02-01 00:00:00

abstract：:Bloodstream forms of Trypanosoma congolense (2 clones: ILNat3.1 and IL3000, and 4 stocks: IL2079, IL2466, IL3266 and CP-81) were continuously cultivated in vitro at 34-36 degrees C in the absence of feeder cell layers, using HMI-93 medium which was modified from Iscove's modified Dulbecco's MEM (Flow Laboratories, Irv...

journal_title：Parasitology

authors： Hirumi H,Hirumi K

更新日期：1991-04-01 00:00:00

abstract：:New treatment strategies for schistosomiasis should be evaluated, since resistant strains to the only available drug, Praziquantel, have already been described. Thus, we demonstrated antiparasitic effects of ethanolic extracts of Jatropha gossypiifolia and Piper arboreum on cercariae and adult worms of Schistosoma man...

journal_title：Parasitology

authors： da Silva Alves RR,Mendes Rodrigues JG,Teles-Reis A,Araújo Nogueira R,Correia Lima Licá I,Sampaio Lira MG,da Silva Alves R,Silva-Souza N,Aguiar Dos Santos Andrade TJ,Silva Miranda G

更新日期：2020-12-01 00:00:00

abstract：:Patterns of genetic subdivision in parasite populations can provide important insights into transmission processes and complement information obtained using traditional epidemiological techniques. We describe mitochondrial sequence variation in 265 Ascaris collected from 62 individual hosts (humans and pigs) from 35 h...

journal_title：Parasitology

authors： Anderson TJ,Romero-Abal ME,Jaenike J

更新日期：1995-02-01 00:00:00

abstract：:Cystoisospora belli is a coccidian protozoan that can cause chronic diarrhoea, acalculous cholecystitis and cholangiopathy in AIDS patients. We applied molecular methods to identify Cystoisospora at species level in AIDS patients presenting with and without the presence of unizoites in lamina propria. Coprological and...

journal_title：Parasitology

authors： Velásquez JN,Osvaldo GA,Di Risio C,Etchart C,Chertcoff AV,Perissé GE,Carnevale S

更新日期：2011-03-01 00:00:00

abstract：:Post-mesocyclic development of Trypanosoma brucei in the tsetse fly in its migration from midgut to salivary glands, was revisited by sequential microdissection, morphometry and DNA-cytofluorometry. This development started by day 6 after the infective feed, with passage of mesocyclic midgut trypomastigotes through pr...

journal_title：Parasitology

authors： Van Den Abbeele J,Claes Y,van Bockstaele D,Le Ray D,Coosemans M

更新日期：1999-05-01 00:00:00

abstract：:A key issue relating to developing multi-component anti-malarial vaccines, lies in studying Plasmodium vivax surface proteins' genetic variation. The present work was aimed at amplifying, cloning and sequencing the gene encoding P. vivax merozoite surface protein 5 (PvMSP5) in samples obtained from infected patients f...

journal_title：Parasitology

authors： Gomez A,Suarez CF,Martinez P,Saravia C,Patarroyo MA

更新日期：2006-12-01 00:00:00

abstract：:The primary immune response to infection with Heligmosomoides polygyrus was studied in mice differing in response phenotype (fast-SWR, intermediate-NIH, slow-CBA). Marked IgG1 and IgE but not IgG2a antibody responses were detected in infected mice and the former were more intense in fast compared with slow responder s...

journal_title：Parasitology

authors： Wahid FN,Behnke JM,Grencis RK,Else KJ,Ben-Smith AW

更新日期：1994-05-01 00:00:00

abstract：:Steroids have been shown to be beneficial in patients and mice with eosinophilic meningitis caused by Angiostrongylus cantonensis infection; however, the mechanism for this beneficial effect is unknown. We speculated that the effect of steroids in eosinophilic meningitis caused by A. cantonensis infection may be media...

journal_title：Parasitology

authors： Tsai HC,Chen YH

更新日期：2020-10-02 00:00:00

abstract：:An enzymatic comparison has been made between isolates of Schistosoma mansoni from rats and humans in Guadeloupe and a Burundi isolate of S. rodhaini. Analyses of LDH, MDH, AcP, PGM, GPI, G6PDH and HK by isoelectric focusing provided no evidence for the involvement of S. rodhaini in the recent evolution of the schisto...

journal_title：Parasitology

authors： Rollinson D,Imbert-Establet D,Ross GC

更新日期：1986-08-01 00:00:00

abstract：:Leishmania donovani causes visceral disease (kala-azar), a major health problem throughout the tropics with 500 000 new cases every year. Leishmania differentiates from the promastigote to the amastigote form to establish infection in a mammalian host. To understand the process of differentiation, we assessed the glob...

journal_title：Parasitology

authors： Srividya G,Duncan R,Sharma P,Raju BV,Nakhasi HL,Salotra P

更新日期：2007-10-01 00:00:00