Eimeria species which infect the chicken contain virus-like RNA molecules.

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：:Like in other trypanosomatids D-glucose is a crucial source of energy to Trypanosoma rangeli, a non-pathogenic parasite that in Central and South America infects triatomine vectors and different mammalian species, including humans. In several trypanosome species, D-glucose transporters were already described and clone...

journal_title：Parasitology

authors： Miletti LC,Koerich LB,Pacheco LK,Steindel M,Stambuk BU

更新日期：2006-12-01 00:00:00

abstract：:The in vivo activity of two cyclosporins, cyclosporin A (CsA) and a non-immunosuppressive derivative of dihydrocylosporin A (DHCsA-d) against three tapeworms, Hymenolepis microstoma, H. diminuta and Mesocestoides corti, has been assessed. CsA reversibly reduced the dry weight of H. microstoma in the mouse, briefly del...

journal_title：Parasitology

authors： Chappell LH,Wastling JM,Hurd H

更新日期：1989-04-01 00:00:00

abstract：:An animal's social behaviour both influences and changes in response to its parasites. Here we consider these bidirectional links between host social behaviours and parasite infection, both those that occur from ecological vs evolutionary processes. First, we review how social behaviours of individuals and groups infl...

journal_title：Parasitology

authors： Hawley DM,Gibson AK,Townsend AK,Craft ME,Stephenson JF

更新日期：2020-10-23 00:00:00

abstract：:A procedure is described for the isolation of sub-cellular fractions from bloodstream forms of Trypanosoma brucei. The method leaves intact most of the nuclei, mitochondria and microbodies. All the fractions have been chemically characterized and tested for 10 enzymatic markers. About 5% of total cell protein was isol...

journal_title：Parasitology

authors： Rovis L,Baekkeskov S

更新日期：1980-06-01 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：: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：:Two experiments were carried out in which calves reared parasite-free were infected with a single dose of 3rd-stage larvae of Cooperia oncophora. In the first experiment the calves received 20 000 or 200 000 infective larvae and they were autopsied 28 or 56 days after the infection. In the second experiment the doses ...

journal_title：Parasitology

authors： Borgsteede FH,Hendriks J

更新日期：1979-06-01 00:00:00

abstract：:The SICA[-] or non-agglutinable phenotype of Plasmodium knowlesi schizont-infected erythrocytes has been defined serologically but not biochemically. Similarly, non-cloned SICA[+] or agglutinable parasites have been shown serologically to express SICA or variant antigen(s) but the number and nature of such antigens ha...

journal_title：Parasitology

authors： Howard RJ,Barnwell JW

更新日期：1985-10-01 00:00:00

abstract：:We have previously reported that the mechanisms of neuromyopathic damage induced by Trypanosoma cruzi are mediated by T cells and are parasite-strain dependent. In the present study our aim was to determine whether the humoral response against muscle and nervous system is also parasite-strain dependent. Of the sera fr...

journal_title：Parasitology

authors： Tekiel VS,Mirkin GA,Gonzalez Cappa SM

更新日期：1997-11-01 00:00:00

abstract：:Philasterides dicentrarchi is a histophagous ciliate causing systemic scuticociliatosis in cultured turbot. This study demonstrates that turbot which survive this disease have serum antibodies that recognize ciliary antigens of this ciliate in ELISA and immobilize/agglutinate the ciliate in vitro. Mouse sera raised ag...

journal_title：Parasitology

authors： Iglesias R,Paramá A,Alvarez MF,Leiro J,Ubeira FM,Sanmartín ML

更新日期：2003-02-01 00:00:00

abstract：:Although the rumen fluke, Calicophoron daubneyi is now very common and widespread throughout Western Europe, reports of clinical cases are still rare. This study explores the epidemiological background to a severe rumen fluke outbreak in 6-month-old heifers on a dairy farm in Ireland. Sequence analysis of the cytochro...

journal_title：Parasitology

authors： O'Shaughnessy J,Garcia-Campos A,McAloon CG,Fagan S,de Waal T,McElroy M,Casey M,Good B,Mulcahy G,Fagan J,Murphy D,Zintl A

更新日期：2018-06-01 00:00:00

abstract：:Vesiculated protoscoleces (VP) were produced by culturing freshly collected protoscoleces from Echinococcus granulosus horse liver hydatids in RPMI 1640 monophasic medium at 37 degrees C for 18 days. Half of the VP were used as such, the other half used after killing them by freeze-thawing. Nine-day-old chicken heart ...

journal_title：Parasitology

authors： Janssen D,De Rycke PH,De Ridder L

更新日期：1990-06-01 00:00:00

abstract：:Flow cytometric analysis of the binucleated protozoan parasite Giardia intestinalis gave DNA histograms with a broad G1 peak and a definable G2 + M peak with twice the DNA content of G1. Twenty-four hour treatment with metronidazole arrested cell cycle progression of susceptible trophozoites in the G2 + M phase, but h...

journal_title：Parasitology

authors： Hoyne GF,Boreham PF,Parsons PG,Ward C,Biggs B

更新日期：1989-12-01 00:00:00

abstract：:Here, the validity of the assumption of concerted evolution of ribosomal regions in larval and adult Cooperia oncophora was assessed. In each of 4 individuals of this parasitic nematode, at least 78% of the sequences comprised different ITS variants. This implies that concerted evolution is not acting, which is corrob...

journal_title：Parasitology

authors： Mes TH,Cornelissen AW

更新日期：2004-08-01 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：:The molecular phylogeny and morphology of the oxyuroid nematode genus Aspiculuris from voles and house mice has been examined. Worms collected from Myodes glareolus in Poland, Eire and the UK are identified as Aspiculuris tianjinensis, previously known only from China, while worms from Mus musculus from a range of loc...

journal_title：Parasitology

authors： Behnke JM,Stewart A,Bajer A,Grzybek M,Harris PD,Lowe A,Ribas A,Smales L,Vandegrift KJ

更新日期：2015-10-01 00:00:00

abstract：:In order to investigate the phenomenon of age-related immunity to visceral leishmaniasis, a 1 year prospective survey was carried out on 5671 people in a Leishmania infantum focus in north-west Iran. The average incidence rate of infection since 1985 was 2.8%/year with all ages equally at risk. One in 13 infections in...

journal_title：Parasitology

authors： Davies CR,Mazloumi Gavgani AS

更新日期：1999-09-01 00:00:00

abstract：:Changes in the cardiac beta-adrenergic system in early stages of Trypanosoma cruzi infection have been described. Here, we studied an early (135 days post-infection-p.i.) and a late stage (365 days p.i.) of the cardiac chronic form of the experimental infection (Tulahuen or SGO-Z12 strains), determining plasma epineph...

journal_title：Parasitology

authors： Lo Presti MS,Rivarola HW,Fernández AR,Enders JE,Levin G,Fretes R,Cerban FM,Garrido VV,Paglini-Oliva P

更新日期：2009-07-01 00:00:00

abstract：:Recent studies of Echinococcus granulosus molecular strain typing have enabled a better understanding of the transmission cycle of cystic echinococcosis. There have been many publications in this area but there is a need for the evaluation of these tools. We have attempted to respond to this need in our study, which a...

journal_title：Parasitology

authors： Bart JM,Bardonnet K,Elfegoun MC,Dumon H,Dia L,Vuitton DA,Piarroux R

更新日期：2004-02-01 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：:Hybridization events between Schistosoma species (Digenea, Platyhelminthes) are reported with increasing frequency, largely due to improved access to molecular tools. Nevertheless, little is known about the distribution and frequency of hybrid schistosomes in nature. Screening for hybrids on a large scale is complicat...

journal_title：Parasitology

authors： Boon NAM,Van Den Broeck F,Faye D,Volckaert FAM,Mboup S,Polman K,Huyse T

更新日期：2018-04-01 00:00:00

abstract：:Cyst fluid (CF) of Taenia solium metacestode (TsM) is an important source of serodiagnostic antigens. We have investigated the molecular characteristics of the 120 kDa protein complex in TsM CF purified by fast performance liquid chromatography. The structure of the purified protein was characterized by a variety of p...

journal_title：Parasitology

authors： Lee EG,Bae YA,Jeong YT,Chung JY,Je EY,Kim SH,Na BK,Ju JW,Kim TS,Ma L,Cho SY,Kong Y

更新日期：2005-12-01 00:00:00

abstract：:Between December 2007 and March 2009, small mammals were captured in 6 Atlantic Forest patches in Brazil. We assessed tick-host associations and whether they differ among forest strata, sites, seasons, and host age classes or between sexes. Moreover, we assessed the exposure of animals to Rickettsia spp. In total, 432...

journal_title：Parasitology

authors： Dantas-Torres F,Aléssio FM,Siqueira DB,Mauffrey JF,Marvulo MF,Martins TF,Moraes-Filho J,Camargo MC,D'Auria SR,Labruna MB,Silva JC

更新日期：2012-01-01 00:00:00

abstract：:An M13 phage random 12-mers peptide library was used to screen cathepsin L mimotopes of Fasciola hepatica and to evaluate their immunogenicity in sheep. Seven clones showed positive reactivity to a rabbit anti-cathepsin L1/L2 antiserum in ELISA, and their amino acid sequences deduced by DNA sequencing were tentatively...

journal_title：Parasitology

authors： Villa-Mancera A,Quiroz-Romero H,Correa D,Ibarra F,Reyes-Pérez M,Reyes-Vivas H,López-Velázquez G,Gazarian K,Gazarian T,Alonso RA

更新日期：2008-10-01 00:00:00

abstract：:The worldwide economic impact of Neospora caninum infection has caused the development of effective vaccines to become one of the main goals in the field of neosporosis research. In this study, the protection conferred by antigens from inactivated whole tachyzoites (TZ) and a tachyzoite-bradyzoite mixture (TZ-BZ) of N...

journal_title：Parasitology

authors： Rojo-Montejo S,Collantes-Fernández E,Rodríguez-Marcos S,Pérez-Zaballos F,López-Pérez I,Prenafeta A,Ortega-Mora LM

更新日期：2011-09-01 00:00:00

abstract：:Human cysticercosis is a public health problem caused by Taenia solium metacestodes; thus, eradication of T. solium transmission by vaccination is an urgent requirement. The Cc48 mimotope from T. solium cysticerci was tested expressed in phage particles (mCc48) and chemically synthesized (sCc48) as a vaccine candidate...

journal_title：Parasitology

authors： Manhani MN,Tilelli CQ,Ribeiro VDS,Goulart LR,Costa-Cruz JM

更新日期：2020-10-01 00:00:00

abstract：:A mathematical model of the parasitic phase of the life-cycle of Ostertagia ostertagi in calves is described. The model is used in the re-analysis of previously published data from a long-term trickle infection experiment in which groups of calves were infected daily with graded doses of 3rd-stage (L3) larvae. The res...

journal_title：Parasitology

authors： Grenfell BT,Smith G,Anderson RM

更新日期：1987-10-01 00:00:00

abstract：:The use of parasites as biological tags to discriminate among marine fish stocks has become a widely accepted method in fisheries management. Here, we first link this approach to its unstated ecological foundation, the decay in the similarity of the species composition of assemblages as a function of increasing distan...

journal_title：Parasitology

authors： Poulin R,Kamiya T

更新日期：2015-01-01 00:00:00

abstract：:Neospora caninum causes economical impact in cattle-raising farms since it is implicated as the major cause of bovine abortions. Although infection by the parasite has been widely described in mammals, the role of birds in its life-cycle is still obscure. Therefore, this work aimed to evaluate the infection by N. cani...

journal_title：Parasitology

authors： Furuta PI,Mineo TW,Carrasco AO,Godoy GS,Pinto AA,Machado RZ

更新日期：2007-12-01 00:00:00