Hydrological modelling of snail dispersal patterns in Msambweni, Kenya and potential resurgence of Schistosoma haematobium transmission.

abstract：:The in vitro effects of 4 arylimidamides (DB811, DB786, DB750 and DB766) against the proliferative tachyzoite stage of the apicomplexan parasite Besnoitia besnoiti were investigated. These four compounds had been shown earlier to exhibit in vitro activities in the nanomolar range against the related apicomplexans Neos...

journal_title：Parasitology

authors： Cortes HC,Muller N,Boykin D,Stephens CE,Hemphill A

更新日期：2011-04-01 00:00:00

abstract：:Life-cycle stages of the microsporidia Nosema bombycis, the pathogen causing silkworm pebrine, were separated and purified by an improved method of Percoll-gradient centrifugation. Soluble protein fractions of late sporoblasts (spore precursor cells) and mature spores were analysed by two-dimensional polyacrylamide ge...

journal_title：Parasitology

authors： Cai S,Lu X,Qiu H,Li M,Feng Z

更新日期：2011-08-01 00:00:00

abstract：:Classical and reverse genetics remain invaluable tools for the scientific investigation of model organisms. Genetic analysis of endoparasites is generally difficult because the sexual adults required for crossing and other manipulations are usually hidden within their host. Strongyloides spp. and Parastrongyloides spp...

journal_title：Parasitology

authors： Streit A

更新日期：2017-03-01 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：:Kudoid parasites are significant pathogens of marine fish. In the past, specific identification has been difficult due to a paucity of detailed morphological and biological information provided in the original description of some species. However, the introduction of DNA analysis has dramatically improved diagnosis. F...

journal_title：Parasitology

authors： Burger MA,Adlard RD

更新日期：2010-04-01 00:00:00

abstract：:Cutaneous Leishmaniasis (CL) is considered a neglected tropical disease which in Pakistan can now be considered as a growing public health problem. The exact figures on the magnitude of the disease are lacking both at the national and regional level and only a few health centres are available for diagnosis of CL. The ...

journal_title：Parasitology

authors： Khan A,Sajid R,Gul S,Hussain A,Zehri MT,Naz S,Simsek S,Waseem S,Afzal MS,Naqvi SKUH,Qasim M,Ahmed H

更新日期：2020-12-23 00:00:00

abstract：:The individual and combined effects of cadmium (Cd) and 3,3',4,4',5-pentachlorobiphenyl (PCB 126) on the antibody response of fish against metazoan parasites were tested. Eels experimentally infected with the swim bladder nematode Anguillicola crassus were exposed to sublethal concentrations of Cd and PCB 126. Cd was ...

journal_title：Parasitology

authors： Sures B,Knopf K

更新日期：2004-04-01 00:00:00

abstract：:Immunological and structural changes in the thymus and pronephros of Cyprinus carpio infected with the blood fluke, Sanguinicola inermis for 30 days, and exposed to 0.5 mg NH4+/1 for 48 and 168 h were investigated. Ultrastructural observations revealed cell disruption and highly vacuolated cytoplasm in the thymus. Of ...

journal_title：Parasitology

authors： Schuwerack PM,Lewis JW,Hoole D,Morley NJ

更新日期：2001-03-01 00:00:00

abstract：:A distinct 8 kDa calcium-binding protein (CaBP) is preferentially expressed at the cercarial stage during the life-cycle of the schistosome. Available data indicate that this CaBP may be associated with tissue/organ remodelling (involving protein degradation and synthesis of new proteins) during transformation of the ...

journal_title：Parasitology

authors： Ram D,Ziv E,Lantner F,Schechter I

更新日期：2003-10-01 00:00:00

abstract：:This paper investigates a cohort of 2187 laboratory reared Culex quinquefasciatus fed on 69 human volunteers, including 59 persons with different levels of Wuchereria bancrofti microfilariae and 10 without microfilaria. Mosquitoes were followed until death. Mosquito survival was analysed in relation to the level of mi...

journal_title：Parasitology

authors： Krishnamoorthy K,Subramanian S,Van Oortmarssen GJ,Habbema JD,Das PK

更新日期：2004-07-01 00:00:00

abstract：:The radiation-attenuated schistosome vaccine induces a high level of protective immunity in rodents. In order to assess its potential relevance to man, we have tested its efficacy in the non-human primate Papio anubis. A vaccination regime consisting of 3 exposures of approximately 9000 cercariae irradiated with 30 or...

journal_title：Parasitology

authors： Yole DS,Pemberton R,Reid GD,Wilson RA

更新日期：1996-01-01 00:00:00

abstract：:The complete sequence of the 18S small subunit (SSU) ribosomal DNA of Hammondia hammondi and Sarcocystis mucosa was obtained and compared to SSU rDNA sequences of Neospora caninum, Toxoplasma gondii, Besnoitia besnoiti, 2 species of Frenkelia, 3 species of Isospora, and 13 species of Sarcocystis. Analyses showed that ...

journal_title：Parasitology

authors： Jenkins MC,Ellis JT,Liddell S,Ryce C,Munday BL,Morrison DA,Dubey JP

更新日期：1999-08-01 00:00:00

abstract：:Interactions between infections of Trichinella spiralis and Nippostrongylus brasiliensis were studied in the NIH strain of mouse which is known to react strongly to T. spiralis. The course of N. brasiliensis infection in this strain of mouse is described and expulsion is shown to be accelerated in immunized mice and i...

journal_title：Parasitology

authors： Kennedy MW

更新日期：1980-02-01 00:00:00

abstract：:To recognize the stage conversion of Toxoplasma gondii between tachyzoite and bradyzoite in live host cells, a transgenic T. gondii line, which expressed stage-specific red and green fluorescence, was constructed. T. gondii PLK strain tachyzoites were stably transformed with genes encoding red fluorescent protein (DsR...

journal_title：Parasitology

authors： Unno A,Suzuki K,Batanova T,Cha SY,Jang HK,Kitoh K,Takashima Y

更新日期：2009-05-01 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：:By means of conventional light microscopical and counting procedures, estimations have been made of the average number and size of ovarian balls from unfertilized and fertilized female Moniliformis dubius. The observations were made on worms recovered from experimental primary infections lasting 1, 2, 3, 4, 5, 8, 11, ...

journal_title：Parasitology

authors： Crompton DW,Arnold S

更新日期：1976-08-01 00:00:00

abstract：:Hymenolepis microstoma from secondary infections in mice were found to grow initially more slowly than H. microstoma from primary infections. Eventually a similar rate of growth was attained by both kinds of worm. After transplantation, young worms (less than or equal to 4 days old) grew more slowly in previously infe...

journal_title：Parasitology

authors： Howard RJ

更新日期：1977-10-01 00:00:00

abstract：:Most, if not all, organisms face attack by natural enemies and will be selected to evolve some form of defence. Resistance may have costs as well as its obvious benefits. These costs may be associated with actual defence or with the maintenance of the defensive machinery irrespective of whether a challenge occurs. In ...

journal_title：Parasitology

authors： Kraaijeveld AR,Ferrari J,Godfray HC

更新日期：2002-01-01 00:00:00

abstract：:Many different drug-resistant lines of rodent malaria are available as screening models. It is obligatory to screen new compounds for antimalarial activity against a series of resistant lines in order to identify a compound with potential for the treatment of multi-drug resistant (MDR) malaria infections. Instead of u...

journal_title：Parasitology

authors： Tripathi R,Dhawan S,Dutta GP

更新日期：2005-09-01 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

abstract：:An apparatus for artificial feeding of Rhipicephalus appendiculatus nymphae was modified to improve feeding performance. Heparinized blood was supplied above a treated artificial membrane while the ticks attached below on its undersurface. The feeding apparatus was incubated at 37 degrees C in an atmosphere of 3% CO2 ...

journal_title：Parasitology

authors： Waladde SM,Young AS,Mwaura SN,Njihia GN,Mwakima FN

更新日期：1995-11-01 00:00:00

abstract：:Multiple infections, those by more than one parasite in the same erythrocyte, may be adaptive for the malarial parasite as a means to ensure fertility. Alternatively they may simply be the consequence of a non-adaptive process forcing several parasites to compete for resources in one host cell. Avian hosts infected wi...

journal_title：Parasitology

authors： Martínez-de la Puente J,Merino S,Tomás G,Moreno J,Morales J,Lobato E

更新日期：2006-01-01 00:00:00

abstract：:Asparaginyl proteinases (or legumains) are a recently identified, novel class of cysteine proteinase which specifically hydrolyse peptide bonds after asparagine residues. Legumains have been implicated in the activation of cysteine proteases, particularly cathepsin B-like proteinases which are thought to help degrade ...

journal_title：Parasitology

authors： Oliver EM,Skuce PJ,McNair CM,Knox DP

更新日期：2006-08-01 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：:We examined the mechanism of action and compared the anthelmintic efficacy of cysteine proteinases from papaya, pineapple, fig, kiwi fruit and Egyptian milkweed in vitro using the rodent gastrointestinal nematode Heligmosomoides polygyrus. Within a 2 h incubation period, all the cysteine proteinases, with the exceptio...

journal_title：Parasitology

authors： Stepek G,Buttle DJ,Duce IR,Lowe A,Behnke JM

更新日期：2005-02-01 00:00:00

abstract：:Populations of hosts vary extensively in the types and numbers of parasites that the average individual contains. Understanding the factors that lead to this variation is an important goal for parasite ecologists. We characterized patterns of helminth component community structure in whitefish collected from a cluster...

journal_title：Parasitology

authors： Goater CP,Baldwin RE,Scrimgeour GJ

更新日期：2005-11-01 00:00:00

abstract：:The multicopy mini-exon-derived RNA (med RNA) locus of Leishmania donovani was enzymatically amplified by the polymerase chain reaction (PCR). The major 180 bp PCR product contained conserved med RNA gene sequences flanking the variable intergenic spacer from the med RNA gene tandem repeat. The oligonucleotide primers...

journal_title：Parasitology

authors： Hassan MQ,Ghosh A,Ghosh SS,Gupta M,Basu D,Mallik KK,Adhya S

更新日期：1993-12-01 00:00:00

abstract：:Isolates of Trypanosoma cruzi from human patients, domestic and sylvatic animals and vector insects were obtained in different areas of Argentina. Electrophoretic patterns of enzymes from extracts of 95 isolates were analysed. On the basis of zymograms providing information on 10 loci, 12 zymodemes are described accor...

journal_title：Parasitology

authors： de Luca D'oro GM,Gardenal CN,Perret B,Crisci JV,Montamat EE

更新日期：1993-11-01 00:00:00

abstract：:The Baltic Sea is characterized by organisms that can tolerate brackish water. Because of the Sea's history during glacial times, its flora and fauna (and also their parasites) can be traced to marine, freshwater and genuine brackish elements beside glacial relics. Snails, planktonic copepods, benthic amphipods and is...

journal_title：Parasitology

authors： Zander CD,Reimer LW

更新日期：2002-01-01 00:00:00

abstract：:The fine structure of the oncosphere of Hymenolepis nana has been investigated by transmission and scanning electron microscopy, together with light microscope observations of JB-4 embedded material. The outer surface of the oncosphere is covered by an epithelial layer, termed the embryonic epithelium. Cell types pres...

journal_title：Parasitology

authors： Fairweather I,Threadgold LT

更新日期：1981-06-01 00:00:00