Malarial parasites and antioxidant nutrients.

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：:The uptake of glucose by Acanthocheilonema viteae was studied in vitro. The process was selective for the D-isomer and saturatable with a Km of 2 mM. The rate of glucose transport/utilization was inhibited by 2-deoxyglucose, mannose, 5-thioglucose and dipyridamole but, unlike mammalian systems, was not impaired by cyt...

journal_title：Parasitology

authors： Hayes DJ,Selwood DL

更新日期：1990-10-01 00:00:00

abstract：:A mathematical model of the transmission dynamics of Cowdria ruminantium by the ixodid tick Amblyomma hebraeum in the bovine host is developed and used to investigate the epidemiology of heartwater across a range of vector challenge. The processes described are supported by empirical data. The pattern of outcome measu...

journal_title：Parasitology

authors： O'Callaghan CJ,Medley GF,Peter TF,Perry BD

更新日期：1998-07-01 00:00:00

abstract：:A rapid, visually read, dot-ELISA developed for the detection and differentiation of trypanosome species in tsetse flies (Glossina spp.), was field tested alongside the standard fly dissection method on a range in south eastern Kenya. Of 104 G. pallidipes dissected, 2 were found to be infected with trypanosomes in the...

journal_title：Parasitology

authors： Bosompem KM,Masake RA,Assoku RK,Opiyo EA,Nantulya VM

更新日期：1996-02-01 00:00:00

abstract：:This study was conducted to quantify the association between meteorological variables and incidence of Plasmodium falciparum in areas with unstable malaria transmission in Ethiopia. We used morbidity data pertaining to microscopically confirmed cases reported from 35 sites throughout Ethiopia over a period of approxim...

journal_title：Parasitology

authors： Abeku TA,De Vlas SJ,Borsboom GJ,Tadege A,Gebreyesus Y,Gebreyohannes H,Alamirew D,Seifu A,Nagelkerke NJ,Habbema JD

更新日期：2004-06-01 00:00:00

abstract：:Many zoonotic disease agents are transmitted between hosts by arthropod vectors, including fleas, but few empirical studies of host-vector-microparasite dynamics have investigated the relative importance of hosts and vectors. This study investigates the dynamics of 4 closely related Bartonella species and their flea v...

journal_title：Parasitology

authors： Telfer S,Begon M,Bennett M,Bown KJ,Burthe S,Lambin X,Telford G,Birtles R

更新日期：2007-03-01 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：:A multi-subunit antigen (native M(r) > 200 kDa, reduced M(r) 97-100 kDa) has been identified in homogenates of Trichinella spiralis larvae using affinity-purified rabbit anti-keyhole limpet haemocyanin (KLH) antibodies and its cross-reactivity with KLH was confirmed by competition blotting. The antigen was not present...

journal_title：Parasitology

authors： Modha J,Robertson WM,Kennedy MW,Kusel JR

更新日期：1994-11-01 00:00:00

abstract：:Perkinsus marinus is a protozoan responsible for dramatic mortality in the Eastern oyster, Crassostrea virginica, but not in the Pacific oyster, C. gigas. To understand the host-parasite relationship, we inoculated P. marinus trophozoites into the shell cavity of C. gigas and measured, over 2 months, (i) intensity of ...

journal_title：Parasitology

authors： Romestand B,Corbier F,Roch P

更新日期：2002-10-01 00:00:00

abstract：:The response of the plant parasitic nematode, Meloidogyne incognita (J2 stage) to avermectin B2a-23-one is triphasic, comprising an initial loss of locomotor activity where the juveniles remain sensitive to touch, a recovery phase and a final loss of activity where the juveniles are relatively insensitive to touch. In...

journal_title：Parasitology

authors： Wright DJ,Birtle AJ,Roberts IT

更新日期：1984-04-01 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：:The transmission-blocking monoclonal antibody 13.1, which recognizes the ookinete surface antigen Pbs21 of Plasmodium berghei, and an IgG2a isotype control antibody 26.37 were purified by caprylic acid and ammonium sulphate precipitation. Fab fragments were prepared by papain digestion. IgG but not Fab from antibody 1...

journal_title：Parasitology

authors： Ranawaka GR,Alejo-Blanco AR,Sinden RE

更新日期：1994-07-01 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：:An hypothesis is presented to explain the red cell lysis which accompanies an acute malarial infection, as well as the mode of action of certain schizonticidal drugs in the quinoline and acridine series. Quinine and a number of other antimalarial drugs have been found to counteract the inhibition by protein of fatty a...

journal_title：Parasitology

authors： Laser H,Kemp P,Miller N,Lander D,Klein R

更新日期：1975-10-01 00:00:00

abstract：:Schistosomiasis is a health problem in Brazil and the role of rodents in maintaining the schistosome life-cycle requires further clarification. The influence of Schistosoma mansoni on a population of Nectomys squamipes was studied by capture-recapture (1st phase, from June 1991 to November 1995) and removal (2nd phase...

journal_title：Parasitology

authors： D'Andrea PS,Maroja LS,Gentile R,Cerqueira R,Maldonado Júnior A,Rey L

更新日期：2000-06-01 00:00:00

abstract：:Sexual size dimorphism (SSD) in mammals reveals the extent of sexual selection, which may in turn explain why males are often more infected by parasites than females and that parasites may contribute to the association between SSD and male-biased mortality. Here, we investigated the relationship between SSD in small m...

journal_title：Parasitology

authors： Morand S,De Bellocq JG,Stanko M,Miklisová D

更新日期：2004-10-01 00:00:00

abstract：:Investigations were carried out into the properties and localization of chitin synthase (EC 2.4.1.16) in connection with the formation of Ascaris suum egg-shells. The chitin synthase of eggs exhibited properties very similar to those found in other chitin-synthesizing organisms. It was stimulated by the presence of AT...

journal_title：Parasitology

authors： Dubinský P,Rybos M,Turceková L

更新日期：1986-02-01 00:00:00

abstract：:A study carried out on a sheep farm examined whether Toxoplasma gondii foetal infection and associated abortion occur in successive lambings. We identified 29 ewes that gave birth to lambs on at least 2 successive years over our study period, 2000-2003. Tissue samples from the progeny of these ewes were analysed by PC...

journal_title：Parasitology

authors： Morley EK,Williams RH,Hughes JM,Thomasson D,Terry RS,Duncanson P,Smith JE,Hide G

更新日期：2008-02-01 00:00:00

abstract：:Described in the present study is a major component of the cell wall of 2 of the most pathogenic parasites of molluscs, Perkinsus atlanticus and P. marinus. The component is a high molecular weight protein (233 kDa), which we have named PWP-1 (for Perkinsus wall protein-1). Western blots, using a polyclonal serum gene...

journal_title：Parasitology

authors： Montes JF,Durfort M,Lladó A,García-Valero J

更新日期：2002-05-01 00:00:00

abstract：:In an interconnected world, the international pet trade on wild animals is becoming increasingly important. As a consequence, non-native parasite species are introduced, which affect the health of wildlife and contribute to the loss of biodiversity. Because the investigation of parasite diversity within vulnerable hos...

journal_title：Parasitology

authors： Héritier L,Verneau O,Breuil G,Meistertzheim AL

更新日期：2017-04-01 00:00:00

abstract：:SUMMARY The necessity to easily establish Histomonas meleagridis cultures has been underlined extensively by many researchers in order to gain more insights in the biology of H. meleagridis. In addition the occurrence of different protozoa in the caeca of birds impedes, however, the isolation and propagation of H. mel...

journal_title：Parasitology

authors： Pham AD,Mast J,DE Gussem JK,McDougald LR,Goddeeris BM

更新日期：2013-09-01 00:00:00

abstract：:Understanding the origin of invasive parasites and ecological transmission barriers on the distribution of mosquito-borne pathogens is enriched by molecular phylogenetic approaches now that large databases are becoming available. Here we assess the biogeographical relationships among haemosporidian blood parasites and...

journal_title：Parasitology

authors： Baillie SM,Brunton DH

更新日期：2011-12-01 00:00:00

abstract：:A polymorphic set of 14 kDa excretory-secretory (E-S) antigen-encoding cDNAs, with similarity to a previously characterized 15 kDa E-S antigen of Haemonchus contortus, was cloned from Cooperia punctata. Five cDNAs encoding predicted proteins of 70-80% identity were sequenced. Genomic analyses of individuals proved the...

journal_title：Parasitology

authors： Yatsuda AP,De Vries E,Vieira Bressan MC,Eysker M

更新日期：2001-12-01 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：:Neospora caninum infection is a significant cause of abortion in cattle. We investigated the tissue distribution of N. caninum in aborted bovine fetuses and dam blood samples by a nested PCR assay, and compared the nested PCR with ELISA in the diagnosis of N. caninum infection. In total, 26 aborted fetuses and 813 blo...

journal_title：Parasitology

authors： Yao L,Yang N,Liu Q,Wang M,Zhang W,Qian WF,Hu YF,Ding J

更新日期：2009-09-01 00:00:00

abstract：:The surface coat of the 2nd-stage juveniles (J2) of plant-parasitic nematodes is considered to be involved in interactions with microorganisms in the soil and rhizosphere, as well as with the host plant. Characterization of surface antigens might be important in the development of new nematode control strategies. In t...

journal_title：Parasitology

authors： Sharon E,Spiegel Y,Salomon R,Curtis RH

更新日期：2002-08-01 00:00:00

abstract：:The acanthocephalan parasite, Polymorphus minutus, manipulates its intermediate hosts' (gammarids) behaviour, presumably to facilitate its transmission to the definitive hosts. A fundamental question is whether this capability has evolved to target gammarids in general, or specifically sympatric gammarids. We assessed...

journal_title：Parasitology

authors： Farahani S,Palsbøll PJ,Pen I,Komdeur J

更新日期：2020-11-13 00:00:00

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：SUMMARY:Clinical isolates from 3 microsporidia species, Encephalitozoon intestinalis and Encephalitozoon hellem, and the insect parasite Anncaliia (Brachiola, Nosema) algerae, were used in spore germination and enterocyte-like (C2Bbe1) cell infection assays to determine the effect of a panel of antimicrobial peptides. ...

journal_title：Parasitology

authors： Leitch GJ,Ceballos C

更新日期：2009-02-01 00:00:00

abstract：:Pinewood nematode, Bursaphelenchus xylophilus, a pine parasitic nematode, poses a serious threat to its host pine forests globally. When dispersal-stage larvae 4 (dauer, DL4) of B. xylophilus enters the new pine, it moults into propagative adult (dauer recovery) and reproduces quickly to kill the host pine. Here, we f...

journal_title：Parasitology

authors： Zhang W,Li Y,Pan L,Wang X,Feng Y,Zhang X

更新日期：2020-01-01 00:00:00