Flow cytometry analysis of the circulating haemocytes from Biomphalaria glabrata and Biomphalaria tenagophila following Schistosoma mansoni infection.

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：:Two natural human interferon alpha preparations, (nHuIFN-alpha [Cantell]) and (nHuIFN-alpha [ISI]), were used for the oral treatment of cattle experimentally infected with Theileria parva parva. In the first experiment, 8 Friesian bulls were inoculated with a 1 in 10 dilution of a sporozoite stabilate of T.p. parva (M...

journal_title：Parasitology

authors： Young AS,Maritim AC,Kariuki DP,Stagg DA,Wafula JM,Mutugi JJ,Cummins JM,Richards AB,Burns C

更新日期：1990-10-01 00:00:00

abstract：:A specific enzyme-linked immunosorbent assay, based on a 48 kDa metallo-proteinase isolated from the frontal glands of a porocephalid pentastomid (Porocephalus crotali) in rat intermediate hosts, is described. SDS-PAGE analysis of whole nymphal homogenate, followed by Western blotting and probing with immune rat serum...

journal_title：Parasitology

authors： Jones DA,Riley J

更新日期：1991-12-01 00:00:00

abstract：:Neospora caninum is an Apicomplexan protozoan that has the dog as a definitive host and cattle (among other animals) as intermediate hosts. It causes encephalopathy in dogs and abortion in cows, with significant loss in worldwide livestock. As any Apicomplexan, the parasite invades the cells using proteins contained i...

journal_title：Parasitology

authors： Pereira LM,Candido-Silva JA,De Vries E,Yatsuda AP

更新日期：2011-03-01 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：:Studies of the kinetics of adenosine transport were carried out on the P1 and P2 transporters of drug-sensitive Trypanosoma evansi and its cloned derivative, resistant to the melaminophenyl arsenical Mel CY. Characterization of adenosine uptake was made by estimation of the maximum concentration taken up at time infin...

journal_title：Parasitology

authors： Suswam EA,Ross CA,Martin RJ

更新日期：2003-12-01 00:00:00

abstract：:The nematode-trapping fungus Arthrobotrys oligospora traps and invades all the free-living juvenile stages of the trichostrongyle nematode Trichostrongylus colubriformis. The processes of capture and invasion of the 1st-stage juveniles are described using differential interference contrast optics and 3-D reconstructio...

journal_title：Parasitology

authors： Murray DS,Wharton DA

更新日期：1990-08-01 00:00:00

abstract：:The structure and development of microgametocytes pf Eimeria maxima from chicks killed during the 6th day of infection were examined using transmission and scanning electron microscopy. Initially, nucleoli disappear and the surface of the microgametocyte invaginates. This is followed by a condensation of the chromatin...

journal_title：Parasitology

authors： Ball SJ,Pittilo RM,Joyner LP,Norton CC

更新日期：1981-02-01 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：:When eggs of the monogenean Dictyocotyle coeliaca, a parasite from the body cavity of Raja naevus, are incubated in alternating 12 h periods of light and darkness at 12 degrees C the marginal hooklets appear between 75 and 90 days after collecting the eggs from the host's body cavity and hatching begins after about 10...

journal_title：Parasitology

authors： Kearn GC

更新日期：1975-02-01 00:00:00

abstract：:To compare the structures of natural and re-established populations of Ascaris in humans, universal (mass) chemotherapy was carried out at the beginning and the end of the study year using pyrantel pamoate. Worms expelled within 48 h of treatment were collected, their sex determined, and measurements made of length, w...

journal_title：Parasitology

authors： Peng W,Cui X,Zhou X

更新日期：2002-06-01 00:00:00

abstract：:The sex ratio of adult worms has been observed biased towards males in Schistosoma mansoni under natural conditions. The origin of this bias is unknown. This paper determines whether males are more infective than females under controlled experimental bisexual conditions, and hence if the sex ratio is male-biased as a ...

journal_title：Parasitology

authors： Boissier J,Moné H

更新日期：2000-10-01 00:00:00

abstract：:SIV rats infected with a high dose (50,000 oocysts) of Eimeria nieschulzi displayed clinical symptoms of coccidiosis such as diarrhoea (days 6 and 7 post-primary infection) and weight loss (days 6-8 post-primary infection) and were completely immune to challenge with a similar dose. The ability of rats to produce tumo...

journal_title：Parasitology

authors： Smith NC,Ovington KS,Deplazes P,Eckert J

更新日期：1995-07-01 00:00:00

abstract：:Experiments to investigate the metabolism of glycine, L-glutamic acid and L-aspartic acid by Moniliformis moniliformis were carried out by incubating adult worms aerobically for 3 h at 37 degrees C in Tyrode's solution containing either [U-14C]glycine, L-[U-14C]glutamic acid, L-[U-14C]aspartic acid or L-[4-14C]asparti...

journal_title：Parasitology

authors： Ward PF,Crompton DW

更新日期：1987-06-01 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：:Human strongyloidiasis is a serious disease mostly attributable to Strongyloides stercoralis and to a lesser extent Strongyloides fuelleborni, a parasite mainly of non-human primates. The role of animals as reservoirs of human-infecting Strongyloides is ill-defined, and whether dogs are a source of human infection is ...

journal_title：Parasitology

authors： Barratt JLN,Sapp SGH

更新日期：2020-09-01 00:00:00

abstract：:Existing models of the basic case reproduction number (R0) for vector-borne diseases assume (i) that the distribution of vectors over the susceptible host species is homogeneous and (ii) that the biting preference for the susceptible host species rather than other potential hosts is a constant. Empirical evidence cont...

journal_title：Parasitology

authors： Kelly DW,Thompson CE

更新日期：2000-03-01 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：:Strongyloides ratti is a parasitic nematode of rats. The host immune response against S. ratti affects the development of its free-living generation, favouring the development of free-living adult males and females at the expense of directly developing, infective 3rd-stage larvae. However, how the host immune response...

journal_title：Parasitology

authors： Crook M,Viney ME

更新日期：2005-09-01 00:00:00

abstract：:Vertically transmitted parasites (VTPs) such as Wolbachia are expected not only to minimize the damage they inflict on their hosts, but also to protect their hosts against the damaging effects of coinfecting parasites. By modifying the fitness costs of the infection, VTPs can therefore play an important role in the ev...

journal_title：Parasitology

authors： Zélé F,Denoyelle J,Duron O,Rivero A

更新日期：2018-05-01 00:00:00

abstract：:Biochemical characterization of 137 Leishmania braziliensis isolates from South and Central America, and from selected endemic foci in Bolivia, Brazil and Colombia, performed by isoenzymatic electrophoresis using 10 enzymatic systems, showed a high enzymatic polymorphism (44 zymodemes obtained) based on the variation ...

journal_title：Parasitology

authors： Chouicha N,Lanotte G,Pratlong F,Cuba Cuba CA,Velez ID,Dedet JP

更新日期：1997-10-01 00:00:00

abstract：:We cloned and expressed Echinostoma caproni HSP70 in Escherichia coli. This molecule presents an open reading frame (ORF) of 655 amino acids, and a theoretical molecular weight of 71 kDa. E. caproni HSP70 protein showed a high homology to other helminth molecules, major differences being located in the C-terminal regi...

journal_title：Parasitology

authors： Higón M,Monteagudo C,Fried B,Esteban JG,Toledo R,Marcilla A

更新日期：2008-10-01 00:00:00

abstract：:Polysporoplasma sparis infection was studied in gilthead sea bream from different mariculture systems of the Spanish coasts. Culture conditions influenced the infection dynamics, as the parasite appeared only in semi-intensive cultures and was not found in intensive closed systems nor in open ones. No clear seasonal p...

journal_title：Parasitology

authors： Palenzuela O,Alvarez-Pellitero P,Sitjà-Bobadilla A

更新日期：1999-03-01 00:00:00

abstract：:Trypanosoma brucei is the causative agent of African sleeping sickness in humans and one of several pathogens that cause the related veterinary disease Nagana. A complex co-evolution has occurred between these parasites and primates that led to the emergence of trypanosome-specific defences and counter-measures. The f...

journal_title：Parasitology

authors： Capewell P,Cooper A,Clucas C,Weir W,Macleod A

更新日期：2015-02-01 00:00:00

abstract：:Trichomonas vaginalis induces cellular damage to the host cells (cytotoxicity) through the proteolytic activity of multiple proteinases of the cysteine type (CPs). Some CPs are modulated by environmental factors such as iron, zinc, polyamines, etc. Thus, the goal of this study was to assess the effect of glucose on T....

journal_title：Parasitology

authors： Miranda-Ozuna JFT,Rivera-Rivas LA,Cárdenas-Guerra RE,Hernández-García MS,Rodríguez-Cruz S,González-Robles A,Chavez-Munguía B,Arroyo R

更新日期：2019-08-01 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：: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：:There has been an enormous growth in the development of biotechnological applications, where advances in the techniques of microelectronic fabrication and the technologies of miniaturization and integration in semiconductor industries are being applied to the production of Laboratory-on-a-Chip devices. The aim of this...

journal_title：Parasitology

authors： Talary MS,Burt JP,Pethig R

更新日期：1998-01-01 00:00:00

abstract：:The host recognition and invasion process of Myxobolus cerebralis actinospores (triactinomyxon, TAM) was studied on a genetic level. A small-scale in vitro assay was developed to activate a large number of TAMs simultaneously, and to monitor the host invasion in the absence of live fish. The transcriptomes of non-acti...

journal_title：Parasitology

authors： Eszterbauer E,Kallert DM,Grabner D,El-Matbouli M

更新日期：2009-04-01 00:00:00

abstract：:The effects of the phenothiazine, Stelazine, on Hymenolepis diminuta were investigated. The cestode was incubated for 10 min at 37 degrees C with 1 mM trifluoperazine, in the presence and absence of Ca2+. Assay of brush border enzymes showed that drug treatment lowered the activities of alkaline phosphatase, Ca2+-ATP'...

journal_title：Parasitology

authors： Hipkiss JB,Skinner A,Branford White CJ

更新日期：1987-02-01 00:00:00