Chemotactic behaviour of Strongyloides stercoralis infective larvae on a sodium chloride gradient.

abstract：:Eimerian oocysts were found in 98% of 422 faeces samples from goats in SE England. It was found that 74% of the samples contained thousands or tens of thousands of oocysts/g. Kids less than 1 year old had higher oocyst counts than yearling or adult goats. Nine species of Eimeria were identified, and 65% of the samples...

journal_title：Parasitology

authors： Norton CC

更新日期：1986-04-01 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 phenotypic activity of two 5-nitroindazolinones, i.e. 2-benzyl-1-propyl (22) and 2-benzyl-1-butyl (24) derivatives, previously proposed as anti-Trypanosoma cruzi prototypes, was presently assayed on bloodstream trypomastigotes (BT) of the moderately drug-resistant Y strain. Further exploration of putative targets ...

journal_title：Parasitology

authors： Fonseca-Berzal C,DA Silva CF,Menna-Barreto RF,Batista MM,Escario JA,Arán VJ,Gómez-Barrio A,Soeiro Mde N

更新日期：2016-09-01 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：:Cercariae of the bird schistosome Trichobilharzia regenti and of the human schistosome Schistosoma mansoni employ proteases to invade the skin of their definitive hosts. To investigate whether a similar proteolytic mechanism is used by both species, cercarial extracts of T. regenti and S. mansoni were biochemically ch...

journal_title：Parasitology

authors： Kasný M,Mikes L,Dalton JP,Mountford AP,Horák P

更新日期：2007-10-01 00:00:00

abstract：:Vitellogenin synthesis by the fat body has been monitored using in vitro culture and immunoprecipitation. This system was found to be efficient for measuring vitellogenin production in both non-infected Tenebrio molitor and those infected with Hymenolepis diminuta. In fat bodies from infected beetles, vitellogenin pro...

journal_title：Parasitology

authors： Webb TJ,Hurd H

更新日期：1996-04-01 00:00:00

abstract：:Seroprevalence data illustrate that human exposure to Toxocara is frequent. Environmental contamination with Toxocara spp. eggs is assumed to be the best indicator of human exposure, but increased risk of exposure has also been associated with many other factors. Reported associations are inconsistent, however, and th...

journal_title：Parasitology

authors： Kanobana K,Devleesschauwer B,Polman K,Speybroeck N

更新日期：2013-07-01 00:00:00

abstract：:A statistical method that analyses correlation structures in families to delineate the contribution of genetic, household and environmental factors on clustering of infection, has been applied to data collected in an area endemic for brugian filariasis in South Sulawesi, Indonesia. Infection was assessed both by micro...

journal_title：Parasitology

authors： Wahyuni S,Houwing-Duistermaat JJ,Syafruddin,Supali T,Yazdanbakhsh M,Sartono E

更新日期：2004-03-01 00:00:00

abstract：:Tubulin is the predominant phosphoprotein in Trypanosoma cruzi epimastigotes and is phosphorylated by a protein kinase CK2. Interestingly, the presence or absence of divalent cations affected the solubilization of a pool of the parasite tubulin and the CK2 responsible for its phosphorylation. This fraction of tubulin ...

journal_title：Parasitology

authors： De Lima AR,Medina R,Uzcanga GL,Noris Suárez K,Contreras VT,Navarro MC,Arteaga R,Bubis J

更新日期：2006-04-01 00:00:00

abstract：:Intact surface membrane vesicles were obtained and purified from the schistosomula of Schistosoma mansoni. The method of preparation of the vesicles involved treating the schistosomula in a buffered high salt medium for 1 h at 4 degrees C (Step 1), and then for 1 h at 25-37 degrees C (Step 2). Vesicles were formed fro...

journal_title：Parasitology

authors： Kusel JR,Gazzinelli G,Colley DG,de Souza CP,Cordeiro MN

更新日期：1984-12-01 00:00:00

abstract：:Most sylvatic species of Trichinella are known to have poor infectivity to rats, but in the present study oral administration of bile from other hosts appeared to modify this infectivity. A total of 75 rats were inoculated in groups of 25 with 3 species of Trichinella (T. spiralis, T. nativa, and T. nelsoni) and each ...

journal_title：Parasitology

authors： Theodoropoulos G,Styliara M,Petrakos M,Kapel CM

更新日期：2003-05-01 00:00:00

abstract：:Conventional mice and congenitally athymic, nude mice were infected with 20 metacercariae of the intestinal trematode Echinostoma revolutum. The sequential events in the pathological changes in the intestine were studied at different intervals post-infection. By day 11 onwards the conventional mice displayed dilatatio...

journal_title：Parasitology

authors： Bindseil E,Christensen NO

更新日期：1984-06-01 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：:Protective immunity against larval Taenia crassiceps has been shown to rely on T cells; however, the roles of the specific subsets of T cells during infection are not known. To investigate a possible role for gamma delta T cells, this study investigated larval infection in delta-chain knock-out C57BL/6 (deltaKO) and w...

journal_title：Parasitology

authors： Toenjes SA,Spolski RJ,Mooney KA,Kuhn RE

更新日期：1999-10-01 00:00:00

abstract：:Schistosoma mansoni eggs, miracidia and primary sporocysts were labelled with phalloidin-rhodamine to visualize filamentous actin structures. Analysis of these forms by confocal fluorescence microscopy revealed the presence of previously well-defined circular and longitudinal muscle layers. Besides these muscular laye...

journal_title：Parasitology

authors： Bahia D,Avelar LG,Vigorosi F,Cioli D,Oliveira GC,Mortara RA

更新日期：2006-09-01 00:00:00

abstract：:BALB/c mice were characterized as more resistant to infection with Heligmosomoides polygyrus (Nematoda) than C57BL/6 mice based on lower establishment and survival during a primary infection and stronger protection induced by an immunizing regime. It was hypothesized, therefore, that C57BL/6 mice would be more heavily...

journal_title：Parasitology

authors： Scott ME

更新日期：1991-12-01 00:00:00

abstract：:Potential mechanisms of immunoregulation have been investigated for the capacity to generate heterogeneity in the outcome of infection with helminth parasites. We have developed a mathematical model of the interaction between T cell and parasite populations, based on the assumption that activation of a Th1 CD4+ T cell...

journal_title：Parasitology

authors： Schweitzer AN,Anderson RM

更新日期：1992-12-01 00:00:00

abstract：:Feulgen-pararosaniline (SO2) staining was performed on stages in the life-cycle of Isospora (Toxoplasma) gondii, Eimeria tenella, Sarcocystis cruzi and Plasmodium berghei. The fluorescence emission of the stained DNA in nuclei of these stages was examined and compared with absorption microscopy measurements at 560 nm ...

journal_title：Parasitology

authors： Cornelissen AW,Overdulve JP,Van der Ploeg M

更新日期：1984-02-01 00:00:00

abstract：:We examine the evolution of microparasites in response to the immune system of vertebrate hosts. We first describe a simple model for an acute infection. This model suggests that the within-host dynamics of the microparasite will be a 'race' between parasite multiplication and a clonally expanding response by the host...

journal_title：Parasitology

authors： Antia R,Lipsitch M

更新日期：1997-01-01 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：:Mice fed 1.5 mg ochratoxin A (OTA) per kg body weight and infected with Trypanosoma brucei rhodesiense were compared with trypanosome-infected placebo-fed and uninfected OTA-fed controls. Uninfected OTA-fed mice showed fever, lethargy, facial and eyelid oedemas, mild hepatitis and nephritis, and high survival. Infecte...

journal_title：Parasitology

authors： Kibugu JK,Ngeranwa JJ,Makumi JN,Gathumbi JK,Kagira JM,Mwangi JN,Muchiri MW,Mdachi RE

更新日期：2009-03-01 00:00:00

abstract：:American trypanosamiasis occurs in nature as a sylvatic cycle, where Trypanosoma cruzi interacts with wild triatomines and mammalian reservoirs, such as marsupials, rodents, armadillos and other animals. Due to difficulties in trying to isolate T. cruzi stocks from the sylvatic cycle, very few studies have been perfor...

journal_title：Parasitology

authors： Fernandes O,Mangia RH,Lisboa CV,Pinho AP,Morel CM,Zingales B,Campbell DA,Jansen AM

更新日期：1999-02-01 00:00:00

abstract：:If parasitic infection is a driving force in female mate choice, then females should preferentially select parasite-free males. The role of infection on female mate choice in mammals was assessed using a 3-chambered apparatus. A female CD-1 mouse was allowed to choose between 2 tethered male mice, 1 uninfected and 1 i...

journal_title：Parasitology

authors： Ehman KD,Scott ME

更新日期：2002-11-01 00:00:00

abstract：:The effects of a parasitic infection with the nematode Nippostrongylus brasiliensis on the degradation rates of cytoplasmic tRNA, rRNA and mRNA in rats have been investigated by measuring the renal excretion rates of the modified RNA catabolites N6-threoninocarbonyladenosine, pseudouridine and 7-methylguanine. Between...

journal_title：Parasitology

authors： Topp H,Duden R,Stephan U,Schöch G

更新日期：1998-02-01 00:00:00

abstract：:The host-parasite relationship is exquisitely specific. In exploiting the host niche, a variety of helminth parasites have been shown to directly manipulate their hosts' immune responses. We assessed the ability of a whole-worm extract of Hymenolepis diminuta to modulate immune cell activation. Immune cells isolated f...

journal_title：Parasitology

authors： Wang A,McKay DM

更新日期：2005-05-01 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：:In this review, we envisage the host environment, not as a hostile one, since the schistosome thrives there, but as one in which the relationship between the two organisms consists of constant communication, through signalling mechanisms involving sense organs, surface glycocalyx, surface membrane and internal organs ...

journal_title：Parasitology

authors： Kusel JR,Al-Adhami BH,Doenhoff MJ

更新日期：2007-10-01 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：:Leishmania braziliensis strain M2903 was adapted for growth and serially maintained as amastigotes at 34 degrees C in modified UM-54 medium, with growth curves exhibiting typical log and stationary phases. In late passages, amastigote growth took place in the absence of supplementary haemin and was unaffected when the...

journal_title：Parasitology

authors： Balanco JM,Pral EM,da Silva S,Bijovsky AT,Mortara RA,Alfieri SC

更新日期：1998-02-01 00:00:00

abstract：:The relative importance of temporal and spatial effects was assessed in helminth communities of bank voles (Myodes glareolus) in 3 woodland sites in N.E. Poland in the late summers of 1999 and 2002. Among common species the rank order of sites in relation to prevalence and abundance of infection was maintained between...

journal_title：Parasitology

authors： Behnke JM,Bajer A,Harris PD,Newington L,Pidgeon E,Rowlands G,Sheriff C,Kuliś-Malkowska K,Siński E,Gilbert FS,Barnard CJ

更新日期：2008-07-01 00:00:00