Tick immunobiology.

abstract：:The biological parameters which generate seasonal fluctuations in the size of populations of Caryophyllaeus laticeps are examined in detail. A mathematical model is formulated to describe the dynamics of the adult parasite within the fish host Abramis brama, and the predictions of the model are compared with observed ...

journal_title：Parasitology

authors： Anderson RM

更新日期：1976-06-01 00:00:00

abstract：:Changes during development in the elemental contents (Ca, P, K, Mg and S) of male and female Schistosoma mansoni from both mixed and single sex infections have been measured for the first time. In mixed infections, there is a significant difference between the calcium content of male and female worms; female worms hav...

journal_title：Parasitology

authors： Shaw MK,Erasmus DA

更新日期：1983-06-01 00:00:00

abstract：:The genetic basis of virulence in a line (YM) of Plasmodium yoelii yoelii was investigated in a cross with a mild line (A/C). The blood forms of the virulent line developed extensively in mature erythrocytes of mice, causing death of the host within 7 days; infections with the mild line were normally restricted to ret...

journal_title：Parasitology

authors： Walliker D,Sanderson A,Yoeli M,Hargreaves BJ

更新日期：1976-04-01 00:00:00

abstract：:Following cloning of Leishmania (L.) amazonensis kinetoplast DNA two recombinant clones were identified: one specific for L. (L.) amazonensis and the other specific for L. (L.) amazonensis and closely related isolates. DNA sequences from these clones were compared with those of other kinetoplastids and oligonucleotide...

journal_title：Parasitology

authors： Eresh S,McCallum SM,Barker DC

更新日期：1994-11-01 00:00:00

abstract：:Multiplication of Plasmodium parasites within human erythrocytes is essential to malarial disease. The cell-division cycle of this organism, however, is still poorly understood. In other eukaryotes, various techniques for (apparent) cell-cycle synchronization have been used to shed light on the mechanisms involved in ...

journal_title：Parasitology

authors： Naughton JA,Bell A

更新日期：2007-03-01 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：:A new model for the study of granuloma formation in the liver is described. Rats received an injection of 20,000 Schistosoma mansoni eggs in the portal vein and granuloma formation was evaluated at 3, 5 and 7 weeks post-injection. Liver collagen was estimated at the same time and serum procollagen III peptide, a marke...

journal_title：Parasitology

authors： Van Gool J,Van Tiel D,Doenhoff MJ,Van Vugt H

更新日期：1991-02-01 00:00:00

abstract：:The free radical nitric oxide (NO) is a neuronal messenger which is synthesized from L-arginine and O2 by nitric oxide synthase (NOS). In the synthesis NO and L-citrulline are produced in a stoichiometric 1:1 relation. The activity of NOS was analysed in homogenates of the rat tapeworm Hymenolepis diminuta by measurin...

journal_title：Parasitology

authors： Terenina NB,Onufriev MV,Gulyaeva NV,Lindholm AM,Gustafsson MK

更新日期：2000-01-01 00:00:00

abstract：:A mathematical model of the transmission dynamics of Cowdria ruminantium by the ixodid tick Amblyomma hebraeum in the bovine host is developed and used to investigate the epidemiology of heartwater across a range of vector challenge. The processes described are supported by empirical data. The pattern of outcome measu...

journal_title：Parasitology

authors： O'Callaghan CJ,Medley GF,Peter TF,Perry BD

更新日期：1998-07-01 00:00:00

abstract：:The response of the plant parasitic nematode, Meloidogyne incognita (J2 stage) to avermectin B2a-23-one is triphasic, comprising an initial loss of locomotor activity where the juveniles remain sensitive to touch, a recovery phase and a final loss of activity where the juveniles are relatively insensitive to touch. In...

journal_title：Parasitology

authors： Wright DJ,Birtle AJ,Roberts IT

更新日期：1984-04-01 00:00:00

abstract：:Quinine (QN) and quinidine (QND) have been commonly used as effective and affordable antimalarials for over many years. Quinine primarily is used for severe malaria treatment. However, plasmodia resistance to these drugs and poor patient compliance limits their administration to the patients. The declining sensitivity...

journal_title：Parasitology

authors： Pandey SK,Dwivedi H,Singh S,Siddiqui WA,Tripathi R

更新日期：2013-03-01 00:00:00

abstract：:The importance of host heterogeneity in generating aggregation was investigated using Heligmosomoides polygyrus (Nematoda) in laboratory mice. Parameters of infection were compared between inbred and outbred mice, between primary and challenge infection protocols, and between gavage and natural exposure protocols, to ...

journal_title：Parasitology

authors： Tanguay GV,Scott ME

更新日期：1992-06-01 00:00:00

abstract：:Climate change, in particular rising temperature, is suspected to be a major driver for the emergence of many wildlife diseases. Proliferative kidney disease of salmonids, caused by the myxozoan Tetracapsuloides bryosalmonae, was used to evaluate how temperature dependence of host-parasite interactions modulates disea...

journal_title：Parasitology

authors： Strepparava N,Segner H,Ros A,Hartikainen H,Schmidt-Posthaus H,Wahli T

更新日期：2018-03-01 00:00:00

abstract：:We have previously shown that the C-terminal region of the intermediate subunit of Entamoeba histolytica galactose- and N-acetyl-D-galactosamine-inhibitable lectin (C-Igl) is a useful antigen for serodiagnosis of amebiasis. An immunochromatographic kit was developed using fluorescent silica nanoparticles coated with C...

journal_title：Parasitology

authors： Tachibana H,Kakino A,Kazama M,Feng M,Asai S,Umezawa K,Nozaki T,Makiuchi T,Kamada T,Watanabe H,Horiki N,Cheng X,Masuda G

更新日期：2018-12-01 00:00:00

abstract：:Changes in host phenotype are often attributed to manipulation that enables parasites to complete trophic transmission cycles. We characterized changes in host phenotype in a colonial host–endoparasite system that lacks trophic transmission (the freshwater bryozoan Fredericella sultana and myxozoan parasite Tetracapsu...

journal_title：Parasitology

authors： Hartikainen H,Fontes I,Okamura B

更新日期：2013-09-01 00:00:00

abstract：:Levamisole (Lms) is an anthelminthic drug with immunomodulatory activity. Chagas disease (CD) is caused by Trypanosoma cruzi and there is very low access to the drugs available, benznidazole (Bz) and nifurtimox, both far from ideal. In a drug-repurposing strategy to test potential activity as antiparasitic and immunom...

journal_title：Parasitology

authors： Rocha Simões-Silva M,Brandão Peres R,Britto C,Machado Cascabulho C,de Melo Oliveira G,Nefertiti da Gama A,França da Silva C,Lima da Costa K,Finamore Araújo P,Diego de Souza Campos J,Meuser Batista M,Cristina Demarque K,da Cruz Mo

更新日期：2019-07-01 00:00:00

abstract：:Biodiversity loss may increase the risk of infectious disease in a phenomenon known as the dilution effect. Circumstances that increase the likelihood of disease dilution are: (i) when hosts vary in their competence, and (ii) when communities disassemble predictably, such that the least competent hosts are the most li...

journal_title：Parasitology

authors： Stewart Merrill TE,Johnson PTJ

更新日期：2020-09-01 00:00:00

abstract：:To assess the prevalence of Taenia solium cysticercosis in patients with neurological disorders in Slovenia, serum/cerebrospinal fluid (CSF) samples from 348 suspected patients were collected between the beginning of January 2001 and the end of December 2012 and analysed serologically for the presence of anti-T. soliu...

journal_title：Parasitology

authors： Šoba B,Beović B,Lužnik Z,Skvarč M,Logar J

更新日期：2014-04-01 00:00:00

abstract：:An enzyme-linked immunosorbent assay (ELISA) was used to detect antibodies to Encephalitozoon cuniculi in man, using spores derived from tissue culture as antigen. Negligible cross-reactions were found with other microsporidia of vertebrate or of invertebrate origin and there was no cross-reaction with Toxoplasma gond...

journal_title：Parasitology

authors： Hollister WS,Canning EU

更新日期：1987-04-01 00:00:00

abstract：:We studied infection dynamics of Plasmodium chabaudi in mice infected with 3 genetically distinct clones--1 less virulent than the other 2--either on their own or in mixtures. During the acute phase of infection, total numbers of asexual parasites in mixed-clone infections were equal to those produced by the 3 clones ...

journal_title：Parasitology

authors： De Roode JC,Read AF,Chan BH,Mackinnon MJ

更新日期：2003-11-01 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：:Chagas disease chemotherapy is based on drugs that exhibit toxic effects and have limited efficacy, such as Benznidazole. Therefore, research into new chemotherapeutic agents from natural sources needs to be exploited. Apis mellifera venom consists of many biologically active molecules and has been reported to exhibit...

journal_title：Parasitology

authors： Adade CM,Chagas GS,Souto-Padrón T

更新日期：2012-09-01 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

abstract：:Th2-biased inflammation with eosinophilia and IgE production is a hallmark of helminth infections. It is pronounced in hyperreactive onchocerciasis patients ('sowda' or 'local form'), who efficiently kill microfilariae resulting in severe dermatitis and lymphadenitis. In contrast, hyporeactive patients ('generalised f...

journal_title：Parasitology

authors： Korten S,Hoerauf A,Kaifi JT,Büttner DW

更新日期：2011-01-01 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：:Avian malaria is a mosquito-borne disease caused by Plasmodium spp. protozoa. Although these parasites have been extensively studied in North America and Eurasia, knowledge on the diversity of Plasmodium, its vectors and avian hosts in Africa is scarce. In this study, we report on natural malarial infections in free-r...

journal_title：Parasitology

authors： Aly MZY,Mohamed III,Sebak SI,Vanstreels RET,El Gendy AM

更新日期：2020-08-01 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：:Cryptosporidium parvum is composed of multiple subtypes, which appear to be zoonotic or anthroponotic. Therefore, in order to understand the molecular epidemiology of this species and to control the zoonotic transmission, it is essential to identify the isolates at the subtype level. In the present study, 60.2% of 103...

journal_title：Parasitology

authors： Misic Z,Abe N

更新日期：2007-03-01 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：: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