Prevalence and diversity of Plasmodium and Haemoproteus parasites in the globally-threatened Aquatic Warbler Acrocephalus paludicola.

abstract：:Thirty-one stocks of Trypanosoma cruzi, the agent of Chagas disease, representative of the genetic variability of the 2 principal lineages, that subdivide T. cruzi, were selected on the basis of previous multilocus enzyme electrophoresis analysis using 21 loci. Analyses were performed with lower numbers of loci to exp...

journal_title：Parasitology

authors： Breniere SF,Barnabe C,Bosseno MF,Tibayrenc M

更新日期：2003-09-01 00:00:00

abstract：:Expansion of human activities frequently results in habitat fragmentation, a phenomenon that has been widely recognized in the last decades as one of the major threats to world's biodiversity. The transformation of a continuous forest into a fragmented area results in a hyper-dynamic landscape with unpredictable conse...

journal_title：Parasitology

authors： Vaz VC,D'Andrea PS,Jansen AM

更新日期：2007-11-01 00:00:00

abstract：:Toxoplasma gondii has a unique enzyme, a NTPase, which has a wide specificity toward NTP. In the present study, we produced a monoclonal antibody (IgG1, 6C6) against the enzyme which could recognize NTPase isozymes among several strains of T. gondii. Three avirulent strains of T. gondii, ME49, Beverley and Nakayama, w...

journal_title：Parasitology

authors： Kikuchi T,Furuta T,Kojima S

更新日期：2001-01-01 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：:Many clinically useful antibacterial drugs have intracellular target sites. Therefore, in order to reach their targets, these compounds must be able to cross bacterial outer and cytoplasmic membranes. Considerable information is available on the mechanisms by which antibiotics cross bacterial membranes and, in many ca...

journal_title：Parasitology

authors： Chopra I

更新日期：1988-01-01 00:00:00

abstract：:The efficiency of treatment of human infections with the unicellular eukaryotic pathogens such as fungi and protozoa remains deeply unsatisfactory. For example, the mortality rates from nosocomial fungemia in critically ill, immunosuppressed or post-cancer patients often exceed 50%. A set of six systemic clinical azol...

journal_title：Parasitology

authors： Lepesheva GI,Friggeri L,Waterman MR

更新日期：2018-12-01 00:00:00

abstract：:A serine protease was purified 942-fold from culture supernatant of L. amazonensis promastigotes using (NH4)2SO4 precipitation followed by affinity chromatography on aprotinin-agarose and continuous elution electrophoresis by Prep Cell, yielding a total recovery of 61%. The molecular mass of the active enzyme estimate...

journal_title：Parasitology

authors： Silva-Lopez RE,Coelho MG,De Simone SG

更新日期：2005-07-01 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：: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：:A beta-1,3-glucan-binding lectin from the penetration glands of Diplostomum pseudospathaceum cercariae was isolated by affinity chromatography using yeast glucan and curdlan as affinity matrices. Further purification to homogeneity was performed by cation-exchange chromatography. The protein migrated as a double band ...

journal_title：Parasitology

authors： Mikes L,Man P

更新日期：2003-07-01 00:00:00

abstract：:Aspects of vitellogenesis, known to be controlled by juvenile hormone, are adversely affected by Hymenolepis diminuta infection of Tenebrio molitor, in spite of circulating titres of the hormone remaining unchanged. It has therefore been proposed that juvenile hormone binding is disrupted at the tissue site level. Juv...

journal_title：Parasitology

authors： Webb TJ,Hurd H

更新日期：1995-06-01 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：:Host-parasite interactions are shaped by the co-evolutionary arms race of parasite virulence, transmission success as well as host resistance and recovery. The virulence and fitness of parasites may depend on host condition, which is mediated, for instance, by host energy constraints. Here, we investigated to what ext...

journal_title：Parasitology

authors： Coors A,De Meester L

更新日期：2011-01-01 00:00:00

abstract：:RNA extracted from purified parasites of Plasmodium knowlesi was fractionated using agarose gel electrophoresis. Preparations from para sites grown both in vivo and in vitro contained species of RNA with sedimentation coefficients of 4-0S, 5-0S, 16-6S, 24-2S, 31-4S, 38-0S and 48-3S. There was less RNA present in paras...

journal_title：Parasitology

authors： Trigg PI,Shakespeare PG,Burt SJ,Kyd SI

更新日期：1975-10-01 00:00:00

abstract：:A 186 bp Echinococcus granulosus-specific repetitive element, TREg, was used to assess genetic variation between strains. In G7 genotype (pig strain) it has the characteristics of a satellite DNA element with a copy number of 23000 per haploid genome. Analysis, by sequencing of TREg monomers, showed a great degree of ...

journal_title：Parasitology

authors： Rosenzvit MC,Canova SG,Kamenetzky L,Guarnera EA

更新日期：2001-10-01 00:00:00

abstract：:In situations where malaria eradication is not an option in the foreseeable future the emphasis must be on the control of morbidity and mortality due to malaria. Under such circumstances drawing a distinction between malarial parasitization and malarial disease may be important for workers in both field and laboratory...

journal_title：Parasitology

authors： Marsh K

更新日期：1992-01-01 00:00:00

abstract：:A comparison has been made of the responses of random-bred CFLP and inbred NIH mice to infection with Trichuris muris. Random-bred mice showed greater variation in worm burdens and less uniformity in worm expulsion. Irradiation prior to infection reduced variation, but did not increase the mean level of infection abov...

journal_title：Parasitology

authors： Wakelin D

更新日期：1975-08-01 00:00:00

abstract：:Intraerythrocytic malaria parasites ingest the cytosol of their host cell and digest it inside their acid food vacuoles. Acidified (pH 4-5.5, 37 degrees C) human red blood cell lysates were used to simulate this process, measuring the denaturation of haemoglobin (Hb) and the release of iron, in the absence or presence...

journal_title：Parasitology

authors： Gabay T,Krugliak M,Shalmiev G,Ginsburg H

更新日期：1994-05-01 00:00:00

abstract：:Ticks have numerous natural enemies, but only a few species have been evaluated as tick biocontrol agents (BCAs). Some laboratory results suggest that several bacteria are pathogenic to ticks, but their mode of action and their potential value as biocontrol agents remain to be determined. The most promising entomopath...

journal_title：Parasitology

authors： Samish M,Ginsberg H,Glazer I

更新日期：2004-01-01 00:00:00

abstract：:Ocular, peroral, intraperitoneal, intramuscular, and subcutaneous inoculation of severe combined immunodeficient (SCID) mice with spores of the human isolate (CDC: V404) of Brachiola algerae (syn. Nosema algerae) (Phylum Microspora) revealed that the microsporidium develops in viscera of the immunodeficient mouse host...

journal_title：Parasitology

authors： Koudela B,Visvesvara GS,Moura H,Vávra J

更新日期：2001-08-01 00:00:00

abstract：:This study reports that inhibition of Leishmania Topo-I with the minor groove-binding ligands (MGBLs) Hoechst 33342 (Ho342) blocks parasite growth in culture by mechanisms involving DNA breakage. While Ho342 inhibited the replication of several species of Leishmania in a dose- and time-dependent manner, Ho258 was not ...

journal_title：Parasitology

authors： Marquis JF,Drolet M,Olivier M

更新日期：2003-01-01 00:00:00

abstract：:Cryptosporidium parvum is a zoonotic protozoan parasite that mainly affects the ileum of humans and livestock, with the potential to cause severe enteric disease. We describe the complete life cycle of C. parvum in an in vitro system. Infected cultures of the human ileocecal epithelial cell line (HCT-8) were observed ...

journal_title：Parasitology

authors： Borowski H,Thompson RC,Armstrong T,Clode PL

更新日期：2010-01-01 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：:The magnetic resonance imaging (MRI) appearance of the brain and spinal cord in humans with neuroangiostrongyliasis (NA) due to Angiostrongylus cantonensis infection has been well reported. Equivalent studies in animals are lacking. This case series describes clinical and MRI findings in 11 dogs with presumptively or ...

journal_title：Parasitology

authors： Wun MK,Malik R,Yu J,Chow KE,Lau M,Podadera JM,Webster N,Lee R,Šlapeta J,Davies S

更新日期：2020-09-21 00:00:00

abstract：:In a recent study by our group on the prevalence of intestinal parasitic infections and on the knowledge, attitudes and practices of local residents of Campos dos Goytacazes, Rio de Janeiro, Brazil, we observed that about 50% of the inhabitants were parasitized and had some knowledge of intestinal parasitic infections...

journal_title：Parasitology

authors： Pereira AP,Alencar MF,Cohen SC,Souza-Júnior PR,Cecchetto F,Mathias LS,Santos CP,Almeida JC,de Moraes Neto AH

更新日期：2012-05-01 00:00:00

abstract：:Cytoadherence of Plasmodium falciparum-infected erythrocytes to melanoma cells was analysed using strains or isolates of parasites expressing or not expressing knobs (K+ or K- phenotype) on the erythrocyte surface. Both K+ and K- parasites had the capacity to cytoadhere to melanoma cells. Using a panel of melanoma cel...

journal_title：Parasitology

authors： Ruangjirachuporn W,Afzelius BA,Paulie S,Wahlgren M,Berzins K,Perlmann P

更新日期：1991-06-01 00:00:00

abstract：:A culture chamber fitted with a polycarbonate sieve has been used to isolate Plasmodium knowlesi merozoites as they are released from schizonts. A 3 mum pore-size sieve allows passage of normal erythrocytes and red cells containing rings and trophozoites and can be used to concentrate schizonts from a mixed cell popul...

journal_title：Parasitology

authors： Dennis ED,Mitchell GH,Butcher GA,Cohen S

更新日期：1975-12-01 00:00:00

abstract：:Avian malaria is a vector transmitted disease caused by Plasmodium and recent studies suggest that variation in its prevalence across avian hosts is correlated with a variety of ecological traits. Here we examine the relationship between prevalence and diversity of Plasmodium lineages in southeastern Amazonia and: (1)...

journal_title：Parasitology

authors： Fecchio A,Ellis VA,Bell JA,Andretti CB,D'Horta FM,Silva AM,Tkach VV,Weckstein JD

更新日期：2017-07-01 00:00:00

abstract：:Sexual size dimorphism (SSD) in mammals reveals the extent of sexual selection, which may in turn explain why males are often more infected by parasites than females and that parasites may contribute to the association between SSD and male-biased mortality. Here, we investigated the relationship between SSD in small m...

journal_title：Parasitology

authors： Morand S,De Bellocq JG,Stanko M,Miklisová D

更新日期：2004-10-01 00:00:00

abstract：:The anticoccidial effect of narasin against Eimeria flavescens, E. intestinalis, E. magna, E. perforans and E. stiedai was tested in experimentally infected rabbits. The drug was highly effective in reducing oocyst output and in preventing clinical signs. Maximum activity as measured by oocyst discharge was achieved w...

journal_title：Parasitology

authors： Peeters JE,Geeroms R,Antoine O,Mammerickx M,Halen P

更新日期：1981-10-01 00:00:00