A new PCR-based approach for the specific amplification of DNA from different Schistosoma species applicable to human urine samples.

abstract：:The kinetoplastid parasite Trypanosoma brucei causes African trypanosomiasis in both humans and animals. Infections place a significant health and economic burden on developing nations in sub-Saharan Africa, but few effective anti-parasitic treatments are currently available. Hence, there is an urgent need to identify...

journal_title：Parasitology

authors： Dickie EA,Young SA,Smith TK

更新日期：2019-04-01 00:00:00

abstract：:A striking feature of toxoplasmic seroconversion is the prominent and early IgM response to a low molecular weight antigen of 4-5 kDa. Two different monoclonal antibodies directed against the 4-5 kDa antigen have been generated and used to characterize this molecule. Using these monoclonal antibodies, we could demonst...

journal_title：Parasitology

authors： Tomavo S,Couvreur G,Leriche MA,Sadak A,Achbarou A,Fortier B,Dubremetz JF

更新日期：1994-02-01 00:00:00

abstract：:Leishmania are obligatory intracellular parasitic protozoa that cycle between sand fly mid-gut and phagolysosomes of mammalian macrophages. They have developed genetically programmed changes in gene and protein expression that enable rapid optimization of cell function according to vector and host environments. During...

journal_title：Parasitology

authors： Tsigankov P,Gherardini PF,Helmer-Citterich M,Zilberstein D

更新日期：2012-08-01 00:00:00

abstract：:The presence of superoxide dismutase (SOD) activity in the bovine lungworm Dictyocaulus viviparus was examined using the xanthine-xanthine oxidase assay system and by non-denaturing PAGE followed by specific enzyme staining. High levels of activity were detected in excretory-secretory (ES) products of adult worms and ...

journal_title：Parasitology

authors： Britton C,Knox DP,Kennedy MW

更新日期：1994-08-01 00:00:00

abstract：:Parasites can have a wide range of pathophysiological effects on the host. This review describes those associated with some parasites of major importance in man and animals. Haemoprotozoan diseases such as trypanosomiasis and malaria are primarily associated with anaemia. Such anaemias have a complex aetiology involvi...

journal_title：Parasitology

authors： Holmes PH

更新日期：1987-01-01 00:00:00

abstract：:A prediction of the hypothesis of Wilson (1977, 1980 a, b) to account for larval migration of homogonic Strongyloides ratti in the host is that the pattern of invasion of the mammary gland of a lactating rat will be quantitatively similar on both sides and independent of the point of entry into the body. Twenty-one su...

journal_title：Parasitology

authors： Wilson PA,Simpson NE

更新日期：1982-06-01 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：:Canine leishmaniosis (CanL) is caused by the parasite Leishmania infantum and is a systemic disease, which can present with variable clinical signs, and clinicopathological abnormalities. Clinical manifestations can range from subclinical infection to very severe systemic disease. Leishmaniosis is categorized as a neg...

journal_title：Parasitology

authors： Hosein S,Blake DP,Solano-Gallego L

更新日期：2017-01-01 00:00:00

abstract：:The lung schistosomulum of Schistosoma mansoni is the target of protective immunity in mice singly vaccinated with irradiated cercariae. Since the effector responses are T cell-mediated, their initiation requires the release of antigens from the intact parasite. We have used the technique of biosynthetic labelling wit...

journal_title：Parasitology

authors： Harrop R,Wilson RA

更新日期：1993-09-01 00:00:00

abstract：:Infection with the endosymbiotic bacteria Wolbachia is widespread in filarial nematodes. Previous studies have suggested concordance between the phylogeny of Wolbachia with that of their nematode hosts. However, there is only one published molecular phylogenetic study of filarial species, based on the 5S rRNA gene spa...

journal_title：Parasitology

authors： Casiraghi M,Anderson TJ,Bandi C,Bazzocchi C,Genchi C

更新日期：2001-01-01 00:00:00

abstract：:Stratospheric ozone depletion threatens to increase exposure to ultraviolet (UV) radiation which is known to be a factor in a number of diseases. There is little doubt that cumulative exposure to UV radiation is important in the aetiology of non-melanoma skin cancers. Evidence is also strong for a link with cutaneous ...

journal_title：Parasitology

authors： Bentham G

更新日期：1993-01-01 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：: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：:Following cloning of Leishmania (L.) amazonensis kinetoplast DNA two recombinant clones were identified: one specific for L. (L.) amazonensis and the other specific for L. (L.) amazonensis and closely related isolates. DNA sequences from these clones were compared with those of other kinetoplastids and oligonucleotide...

journal_title：Parasitology

authors： Eresh S,McCallum SM,Barker DC

更新日期：1994-11-01 00:00:00

abstract：:Neurocysticercosis (NCC) is the most common parasitic disease of the central nervous system (CNS) caused by the larval form of the tapeworm Taenia solium. NCC has a long asymptomatic period with little or no inflammation, and the sequential progression to symptomatic NCC depends upon the intense inflammation associate...

journal_title：Parasitology

authors： Alvarez JI,Mishra BB,Gundra UM,Mishra PK,Teale JM

更新日期：2010-03-01 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：:The gastrointestinal nematodes (GIN) stand out as an important cause of disease in small ruminant, especially on goat farm. Widespread resistance to synthetic anthelminthics has stimulated the research for alternative strategies of parasite control, including the use of medicinal plants. The present work summarizes th...

journal_title：Parasitology

authors： Oliveira Santos F,Ponce Morais Cerqueira A,Branco A,José Moreira Batatinha M,Borges Botura M

更新日期：2019-09-01 00:00:00

abstract：:We have cloned a cDNA encoding a novel antigen from a Sarcoptes scabiei (Acari) cDNA library by immunoscreening with sera from S. scabiei-infected dogs. The antigen is encoded by a 2,157 bp mRNA with a predicted open reading frame of 719 amino acids (molecular weight 79 kDa). Our sequence analysis identified the prese...

journal_title：Parasitology

authors： Ljunggren EL,Bergström K,Morrison DA,Mattsson JG

更新日期：2006-01-01 00:00:00

abstract：:Trichinella spiralis infections may lead to the loss of behavioural dominance among male mice. Reversals of dominance order first appear at the time when newborn larvae are released into the circulation of the host. The duration of dominance reversals bears no relationship to the number of muscle larvae harboured. ...

journal_title：Parasitology

authors： Rau ME

更新日期：1984-04-01 00:00:00

abstract：:The recent development of genetic methods allows the delineation of species boundaries, especially in organisms where morphological characters are not reliable to differentiate species. However, few empirical studies have used these tools to delineate species among parasitic metazoans. Here we investigate the species ...

journal_title：Parasitology

authors： Pérez-Ponce DE León G,García-Varela M,Pinacho-Pinacho CD,Sereno-Uribe AL,Poulin R

更新日期：2016-11-01 00:00:00

abstract：:Theileria-free waterbuck (Kobus defassa) born in captivity were successfully infected with Theileria parva sporozoites derived from ticks infected by feeding on African buffalo (Syncerus caffer). All waterbuck underwent mild infections with the development of sporadic schizont and piroplasm parasitosis when inoculated...

journal_title：Parasitology

authors： Stagg DA,Bishop RP,Morzaria SP,Shaw MK,Wesonga D,Orinda GO,Grootenhuis JG,Molyneux DH,Young AS

更新日期：1994-06-01 00:00:00

abstract：:The presence of introduced hosts can increase or decrease infections of co-introduced parasites in native species of conservation concern. In this study, we compared parasite abundance, intensity, and prevalence between native Awaous stamineus and introduced poeciliid fishes by a co-introduced nematode parasite (Camal...

journal_title：Parasitology

authors： Gagne RB,Heins DC,McIntyre PB,Gilliam JF,Blum MJ

更新日期：2016-10-01 00:00:00

abstract：:Parasites of the genera Plasmodium and Haemoproteus (Apicomplexa: Haemosporida) are a diverse group of pathogens that infect birds nearly worldwide. Despite their ubiquity, the ecological and evolutionary factors that shape the diversity and distribution of these protozoan parasites among avian communities and geograp...

journal_title：Parasitology

authors： Fecchio A,Svensson-Coelho M,Bell J,Ellis VA,Medeiros MC,Trisos CH,Blake JG,Loiselle BA,Tobias JA,Fanti R,Coffey ED,DE Faria IP,Pinho JB,Felix G,Braga EM,Anciães M,Tkach V,Bates J,Witt C,Weckstein JD,Ricklefs RE,

更新日期：2017-06-01 00:00:00

abstract：:The effects of dietary urea supplementation and of a 10-week trickle infection regime, simulating chronic exposure to Haemonchus contortus, on the zymogenic population of the abomasa of Hampshire Down lambs was examined. At necropsy a variety of parameters including plasma pepsinogen concentration, the wet weights of ...

journal_title：Parasitology

authors： Scott I,Stear MJ,Irvine J,Dick A,Wallace DS,McKellar QA

更新日期：1998-06-01 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：:Nitric oxide (NO) produced by cytokine-activated macrophages is reported to be cytotoxic against the helminth Schistosoma mansoni, although this is a controversial issue. Previous work in our laboratory identified a fraction of S. mansoni soluble adult worm antigenic preparation (SWAP), named PIII, able to elicit sign...

journal_title：Parasitology

authors： Oliveira DM,Silva-Teixeira DN,Gustavson S,Oliveira SM,Goes AM

更新日期：2000-04-01 00:00:00

abstract：:The statistical aggregation of parasites among hosts is often described empirically by the negative binomial (Poisson-gamma) distribution. Alternatively, the Poisson-lognormal model can be used. This has the advantage that it can be fitted as a generalized linear mixed model, thereby quantifying the sources of aggrega...

journal_title：Parasitology

authors： Elston DA,Moss R,Boulinier T,Arrowsmith C,Lambin X

更新日期：2001-05-01 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 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：:Administration of the immunostimulants Corynebacterium parvum, Bacillus Calmette-Guérin (BCG) or Bordetella pertussis prior to, or at the same time as, challenge with Trypanosoma congolense significantly increased survival times in mice, both of trypano-susceptible (A/J) and trypano-resistant (C57Bl) strains. The incr...

journal_title：Parasitology

authors： Murray M,Morrison WI

更新日期：1979-12-01 00:00:00