Fluoride exposure inhibits protein expression and enzyme activity in the lung-stage larvae of Ascaris suum.

abstract：:The anthelmintic properties of tanniferous plants and of their secondary metabolites represent one possible alternative to chemotherapy that is currently being explored as a means of achieving sustainable control of gastrointestinal nematodes in ruminants. Previous in vivo and in vitro results suggest that tanniferous...

journal_title：Parasitology

authors： Bahuaud D,Martinez-Ortiz de Montellano C,Chauveau S,Prevot F,Torres-Acosta F,Fouraste I,Hoste H

更新日期：2006-04-01 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：:Most of our knowledge about the process of penetration of skin, by cercariae of Schistosoma mansoni, has been gained from studies carried out in vivo with laboratory animals. Human skin is significantly different from that of other animals but there are obvious practical difficulties in directly studying attachment an...

journal_title：Parasitology

authors： Khammo N,Bartlett A,Clothier RH,Whitfield PJ

更新日期：2002-01-01 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：: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

abstract：:Chemotactic responses of Strongyloides stercoralis infective larvae (L3) to sodium chloride (NaCl) were investigated by recording larval tracks on a saline gradient in agarose. On agarose, larvae migrated randomly, whereas when placed at 0.01 m NaCl larvae moved to approximately 1.1 m NaCl where they turned, headed do...

journal_title：Parasitology

authors： Forbes WM,Ashton FT,Boston R,Schad GA

更新日期：2003-08-01 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：: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：: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：:Antigenic differences between intra-lymphocytic theilerial parasites isolated from the blood of 18 African buffalo and grown in vitro were assessed with anti-schizont monoclonal antibodies (mAbs). There was marked antigenic diversity both between isolates from different buffalo and between isolates taken at different ...

journal_title：Parasitology

authors： Conrad PA,Stagg DA,Grootenhuis JG,Irvin AD,Newson J,Njamunggeh RE,Rossiter PB,Young AS

更新日期：1987-06-01 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：:Post-mesocyclic development of Trypanosoma brucei in the tsetse fly in its migration from midgut to salivary glands, was revisited by sequential microdissection, morphometry and DNA-cytofluorometry. This development started by day 6 after the infective feed, with passage of mesocyclic midgut trypomastigotes through pr...

journal_title：Parasitology

authors： Van Den Abbeele J,Claes Y,van Bockstaele D,Le Ray D,Coosemans M

更新日期：1999-05-01 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：:Epidemiological rate parameters of host generalist parasites are difficult to estimate, especially in cases where variation in parasite performance can be attributed to host species. Such cases are likely common for generalist parasites of sympatric grazing mammals. In this study, we combined data from experimental ex...

journal_title：Parasitology

authors： Beck MA,Goater CP,Colwell DD

更新日期：2015-09-01 00:00:00

abstract：:Two cDNAs encoding cysteine proteinases were isolated from a cDNA library constructed from feeding females of Heterodera glycines. The library was screened with a cysteine proteinase gene fragment originally amplified from cDNA of H. glycines. Database searches predict that 1 cDNA (hgcp-I) encodes a cathepsin L-like p...

journal_title：Parasitology

authors： Urwin PE,Lilley CJ,McPherson MJ,Atkinson HJ

更新日期：1997-06-01 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：: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：:Early in the history of schistosomiasis research, children under 5 years of age were known to be infected. Although this problem was recognized over 100 years ago, insufficient action has been taken to address this issue. Under current policy, such infected children only receive their first antiparasitic treatment (pr...

journal_title：Parasitology

authors： Bustinduy AL,Wright S,Joekes EC,Kabatereine NB,Reinhard-Rupp J,King CH,Stothard JR

更新日期：2017-10-01 00:00:00

abstract：:Common bird species were screened during May and June 2007 on Barbados for haemosporidian parasites (Haemosporida) of the genera Haemoproteus and Plasmodium to determine whether the low parasite diversity reported in previous studies might have reflected limited sampling. PCR screening and DNA sequencing revealed a si...

journal_title：Parasitology

authors： Maria L,Svensson E,Ricklefs RE

更新日期：2009-09-01 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：:Infection of small macropodids with the larval stage of Echinococcus granulosus can cause fatalities as well as significant pulmonary impairment and other adverse sequelae. The brush-tailed rock-wallaby (Petrogale penicillata) is a small macropodid listed as vulnerable on the IUCN's Red List of Threatened Species. Thi...

journal_title：Parasitology

authors： Barnes TS,Goldizen AW,Morton JM,Coleman GT

更新日期：2008-05-01 00:00:00

abstract：:Amoebiasis, infection by the protozoan parasite Entamoeba histolytica, remains a global health problem, despite the availability of effective treatment. While improved sanitation could lead to the eradication of this disease, it is unlikely that this will occur worldwide in the foreseeable future; thus alternative mea...

journal_title：Parasitology

authors： Stanley SL Jr

更新日期：2006-01-01 00:00:00

abstract：:Trypanosoma evansi and Trypanosoma vivax are the most extensively distributed trypanosomes responsible for diseases in livestock. Western blot and indirect immunofluorescence assays revealed a high immunological cross-reaction between these two parasites. An antigen with an apparent molecular mass of 64 kDa (p64), whi...

journal_title：Parasitology

authors： Uzcanga G,Mendoza M,Aso PM,Bubis J

更新日期：2002-03-01 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：:In recent years, a malaria infection of humans in South East Asia, originally diagnosed as a known human-infecting species, Plasmodium malariae, has been identified as a simian parasite, Plasmodium knowlesi. This species had been subject to considerable investigation in monkeys since the 1930s. With the development of...

journal_title：Parasitology

authors： Butcher GA,Mitchell GH

更新日期：2018-01-01 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：:The effect of sainfoin (Onobrychis viciifolia) hay consumption on the pathophysiology and local cellular responses of growing lambs during infection with Trichostrongylus colubriformis was investigated. Thirty-two lambs, 16 weeks of age, were allocated to 1 of 4 treatment groups (n=8) that were offered either grass (G...

journal_title：Parasitology

authors： Ríos-de Alvarez L,Greer AW,Jackson F,Athanasiadou S,Kyriazakis I,Huntley JF

更新日期：2008-08-01 00:00:00

abstract：:The cumulative effect of co-infections between pathogen pairs on the haematological response of East African Short-horn Zebu calves is described. Using a longitudinal study design a stratified clustered random sample of newborn calves were recruited into the Infectious Diseases of East African Livestock (IDEAL) study ...

journal_title：Parasitology

authors： Van Wyk IC,Goddard A,de C Bronsvoort BM,Coetzer JA,Handel IG,Hanotte O,Jennings A,Lesosky M,Kiara H,Thumbi SM,Toye P,Woolhouse MW,Penzhorn BL

更新日期：2014-03-01 00:00:00

abstract：:A delayed gamma distribution satisfactorily described the distribution of times to hatching of Ostertagia circumcincta eggs incubated in 0.1% saline at temperatures between 6 and 20 degrees C. Below 6 degree C hatching of eggs was extremely variable. The relationship between rates of development and temperature within...

journal_title：Parasitology

authors： Young RR,Anderson N,Overend D,Tweedie RL,Malafant KW,Preston GA

更新日期：1980-12-01 00:00:00

abstract：:Plant cysteine proteinases (CPs) from Carica papaya kill parasitic and free-living nematodes in vitro by hydrolysis of the worm cuticle, a mechanism that is different to all commercially available synthetic anthelmintics. We have developed a cheap and effective, rapid-throughput Caenorhabditis elegans-based assay for ...

journal_title：Parasitology

authors： Phiri AM,DE Pomerai DI,Buttle DJ,Behnke JM

更新日期：2017-04-01 00:00:00