Dissection of the hierarchy and synergism of the bile derived signal on Cryptosporidium parvum excystation and infectivity.

abstract：:Studies on the nutrition and physiology of Trichomonas vaginalis have been hampered by the lack of a defined synthetic medium in which to grow the organism. New synthetic media free of ill-defined supplements and serum which support good growth of T. vaginalis have been developed in this study. The first successful ap...

journal_title：Parasitology

authors： Linstead D

更新日期：1981-08-01 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：:Due to the low informative value of available morphological characters, cytogenetic and molecular methods, based on rDNA sequencing, were used to characterize adult and larval stages of Phyllodistomum spp. Species studied have 18 chromosomes with comparable absolute and relative lengths. Conventional Giemsa staining a...

journal_title：Parasitology

authors： Petkeviciŭte R,Stunzenas V,Staneviciŭte G

更新日期：2004-12-01 00:00:00

abstract：:Development and forward migration of Leishmania parasites in the sandfly gut is accompanied by morphological transformation to highly motile, non-dividing 'metacyclic' forms. Previous studies in vitro have demonstrated that this metacyclogenesis is associated with developmentally regulated changes in expression of two...

journal_title：Parasitology

authors： Davies CR,Cooper AM,Peacock C,Lane RP,Blackwell JM

更新日期：1990-12-01 00:00:00

abstract：:We describe a laboratory model using Eimeria falciformis and E. pragensis to investigate some of the interactions in double-species infections of Eimeria. Mice were given trickle infections by oral inoculation of 100 sporulated oocysts of one species at 3 or 4 day intervals throughout the experiments and, once immunit...

journal_title：Parasitology

authors： Shehu K,Nowell F

更新日期：1998-11-01 00:00:00

abstract：:Pentastomids comprise a highly specialized taxon of arthropod-like parasites that probably became adapted to the lungs of amphibians and reptiles early in their long evolutionary history. Few other macroparasites exploit this particular niche. Pentastomids are often large, long-lived and yet they cause little observab...

journal_title：Parasitology

authors： Riley J,Henderson RJ

更新日期：1999-01-01 00:00:00

abstract：:Trypanosomatids represent the causative agents of major diseases in humans, livestock and plants, with inevitable suffering and economic hardship as a result. They are also evolutionarily highly divergent organisms, and the many unique aspects of trypanosome biology provide opportunities in terms of identification of ...

journal_title：Parasitology

authors： Field MC,Adung'a V,Obado S,Chait BT,Rout MP

更新日期：2012-08-01 00:00:00

abstract：:A time-course study was conducted to resolve discrepancies in the literature and better define aspects of the Eimeria maxima life cycle such, as sites of development and both morphology and number of asexual stages. Broiler chickens were inoculated orally with five million E. maxima oocysts (APU1), and were necropsied...

journal_title：Parasitology

authors： Dubey JP,Jenkins MC

更新日期：2018-07-01 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：:We have studied the genomic organization and transcription of the histone H2A genes in the protozoan parasite Leishmania infantum. In the parasite genome 2 gene clusters exist, each containing 3 H2A gene copies. Sequence analyses showed the existence of significant sequence divergence among the H2A genes, mainly in th...

journal_title：Parasitology

authors： Soto M,Quijada L,Larreta R,Iborra S,Alonso C,Requena JM

更新日期：2003-08-01 00:00:00

abstract：:A novel tetrahydroquinolinyl ester, quinfamide, administered orally in multiple doses for 3 days had an ED50 of 0.25 mg/kg/day (total dose 0.75 mg/kg) for eradicating Entamoeba criceti in hamsters in several tests. It was significantly more active by direct comparison than 3 commercially available amoebicides and at l...

journal_title：Parasitology

authors： Slighter RG,Yarinsky A,Drobeck HP,Bailey DM

更新日期：1980-08-01 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：:Taenia cestodes were obtained from 5 different definitive host species in Kenya and 175 different samples were examined by classical morphological methods and by isoenzyme analysis using isoelectric focusing in agarose. Gels were stained for 17 different enzymes and 3 of these were used in the construction of isoenzym...

journal_title：Parasitology

authors： Allsopp BA,Jones A,Allsopp MT,Newton SD,Macpherson CN

更新日期：1987-12-01 00:00:00

abstract：:Heparin-binding proteins (HBPs) play a key role in Trypanosoma cruzi-host cell interactions. HBPs recognize heparan sulfate (HS) at the host cell surface and are able to induce the cytoadherence and invasion of this parasite. Herein, we analysed the biochemical properties of the HBPs and also evaluated the expression ...

journal_title：Parasitology

authors： Oliveira FO Jr,Alves CR,Silva FS,Côrtes LM,Toma L,Bouças RI,Aguilar T,Nader HB,Pereira MC

更新日期：2013-02-01 00:00:00

abstract：:The development of the free-living stages of Ostertagia ostertagi incubated at constant temperatures from 5 to 27 degrees C and in dung pats in the field was observed. The death rates were adequately described by a single exponential functional and the distribution of times for development by a delayed gamma density f...

journal_title：Parasitology

authors： Young RR,Nicholson RM,Tweedie RL,Schuh HJ

更新日期：1980-12-01 00:00:00

abstract：:A novel repetitive DNA sequence in the sheep parasitic nematode Trichostrongylus colubriformis was cloned and sequenced. A 1.1 kb repetitive sequence (Tc15) which hybridized with DNA from T. colubriformis but not with DNA from two other parasitic nematodes, Haemonchus contortus and Ostertagia circumcincta, or sheep wa...

journal_title：Parasitology

authors： Callaghan MJ,Beh KJ

更新日期：1994-09-01 00:00:00

abstract：:The diversity and prevalence of malaria parasites of the genera Plasmodium and Haemoproteus were determined in the globally-threatened Aquatic Warbler Acrocephalus paludicola. Birds were sampled during migration in Portugal and at the wintering quarters in Senegal and parasites were detected using molecular methods. O...

journal_title：Parasitology

authors： Neto JM,Pérez-Rodríguez A,Haase M,Flade M,Bensch S

更新日期：2015-08-01 00:00:00

abstract：:The capacity of Acanthocheilonema viteae to metabolize fructose was investigated in vitro. In common with other filarial species A. viteae oxidized fructose to lactate but its rate of consumption was only 40% of the glucose-containing control value. Fructose was not incorporated into glycogen. Release of 14CO2 from [U...

journal_title：Parasitology

authors： Hayes DJ,Carter NS

更新日期：1990-12-01 00:00:00

abstract：:Canine leishmaniosis (CanL) is caused by the parasite Leishmania infantum and is a systemic disease, which can present with variable clinical signs, and clinicopathological abnormalities. Clinical manifestations can range from subclinical infection to very severe systemic disease. Leishmaniosis is categorized as a neg...

journal_title：Parasitology

authors： Hosein S,Blake DP,Solano-Gallego L

更新日期：2017-01-01 00:00:00

abstract：:Intra-erythrocytic stages of malaria parasites can alter the surface of their host cells and release toxins which induce the production of cytokines, which in turn can up- or down-regulate the expression of adhesion receptors on the surface of microvascular endothelial cells. New adhesion receptors on endothelial cell...

journal_title：Parasitology

authors： Hommel M

更新日期：1997-01-01 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：:During a longitudinal study investigating the dynamics of malaria in Ugandan lakeshore communities, a consistently high malaria prevalence was observed in young children despite regular treatment. To explore the short-term performance of artemether-lumefantrine (AL), a pilot investigation into parasite carriage after ...

journal_title：Parasitology

authors： Betson M,Sousa-Figueiredo JC,Atuhaire A,Arinaitwe M,Adriko M,Mwesigwa G,Nabonge J,Kabatereine NB,Sutherland CJ,Stothard JR

更新日期：2014-12-01 00:00:00

abstract：:Blastocystis SSU-rDNA sequence data from 317 captive and free-living non-human primates (NHPs) representing 30 genera of apes, Old and New World (OW and NW) monkeys and prosimians were analysed to investigate subtype (ST) and allele distribution among hosts. Excluding 20 mixed ST infections, 27% of the sequences belon...

journal_title：Parasitology

authors： Alfellani MA,Jacob AS,Perea NO,Krecek RC,Taner-Mulla D,Verweij JJ,Levecke B,Tannich E,Clark CG,Stensvold CR

更新日期：2013-07-01 00:00:00

abstract：:An endemic transmission cycle of Babesia microti was discovered in Colorado in the foothills of the Rocky Mountains. B. microti were found by PCR in 4 of 25 Ixodes spinipalpis tick pools tested (a 3.2 % minimum infection rate) and in 87% (13 of 15) of Microtus ochrogaster (the prairie vole) spleen and blood samples. U...

journal_title：Parasitology

authors： Burkot TR,Schneider BS,Pieniazek NJ,Happ CM,Rutherford JS,Slemenda SB,Hoffmeister E,Maupin GO,Zeidner NS

更新日期：2000-12-01 00:00:00

abstract：:As more facts emerge regarding the ways in which E. multilocularis-derived molecules trigger the host immune response and modulate the host-parasite interplay, it becomes possible to envisage how the parasite can survive and proliferate in its intermediate host, while in other hosts it dies out. Through effects on cel...

journal_title：Parasitology

authors： Mejri N,Hemphill A,Gottstein B

更新日期：2010-03-01 00:00:00

abstract：:Most of our knowledge about the process of penetration of skin, by cercariae of Schistosoma mansoni, has been gained from studies carried out in vivo with laboratory animals. Human skin is significantly different from that of other animals but there are obvious practical difficulties in directly studying attachment an...

journal_title：Parasitology

authors： Khammo N,Bartlett A,Clothier RH,Whitfield PJ

更新日期：2002-01-01 00:00:00

abstract：:A cDNA encoding a beta-galactoside-binding lectin (galectin) was identified by immunoscreening a Haemonchus contortus cDNA library with antisera from lambs vaccinated with a membrane protein complex (H-gal-GP) derived from the parasites' gut. The cDNA sequence, exhibiting a tandem repeat structure and designated Hco-g...

journal_title：Parasitology

authors： Newlands GF,Skuce PJ,Knox DP,Smith SK,Smith WD

更新日期：1999-11-01 00:00:00

abstract：:It is suspected that host-parasite interactions are influenced by climatic oscillations such as the North Atlantic Oscillation (NAO). However, the effects of climatic oscillations on host-parasite interactions have never been investigated. A long-term (1982-1999) dataset of the host snail Lymnaea stagnalis and tremato...

journal_title：Parasitology

authors： Doi H,Yurlova NI

更新日期：2011-07-01 00:00:00

abstract：:The parasitic roundworms Strongyloides stercoralis (in man) and Strongyloides ratti (in rats) employ environmentally controlled XX/XO sex determination with a pair of X chromosomes and two pairs of autosomes. Strongyloides papillosus (in sheep) has only two pairs of chromosomes, one of which combines the genetic mater...

journal_title：Parasitology

authors： Kulkarni A,Dyka A,Nemetschke L,Grant WN,Streit A

更新日期：2013-12-01 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