Population dynamics in echinococcosis and cysticercosis: regulation of Taenia hydatigena and T. ovis in lambs through passively transferred immunity.

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：:Bat flies (Streblidae) are diverse, obligate blood-feeding insects and probably the most conspicuous ectoparasites of bats. They show preferences for specific body regions on their host bat, which are reflected in behavioural characteristics. In this study, we corroborate the categorization of bat flies into three eco...

journal_title：Parasitology

authors： Hiller T,Honner B,Page RA,Tschapka M

更新日期：2018-09-01 00:00:00

abstract：:An animal's social behaviour both influences and changes in response to its parasites. Here we consider these bidirectional links between host social behaviours and parasite infection, both those that occur from ecological vs evolutionary processes. First, we review how social behaviours of individuals and groups infl...

journal_title：Parasitology

authors： Hawley DM,Gibson AK,Townsend AK,Craft ME,Stephenson JF

更新日期：2020-10-23 00:00:00

abstract：:Many marine fisheries in South American Atlantic coasts (SAAC) are threatened by overfishing and under serious risk of collapsing. The SAAC comprises a diversity of environments, possesses a complex oceanography and harbours a vast biodiversity that provide an enormous potential for using parasites as biological tags ...

journal_title：Parasitology

authors： Cantatore DM,Timi JT

更新日期：2015-01-01 00:00:00

abstract：:A number of authors have demonstrated that the schistosomicidal compound, Praziquantel (Pzq), depends for its action upon the immune status of the host (Sabah et al. 1985; Brindley & Sher, 1987; Doenhoff et al. 1987). We have attempted to define the synergistic interaction between immuno- and chemotherapy further, usi...

journal_title：Parasitology

authors： Piper KP,Mott RF,Hockley DJ,McLaren DJ

更新日期：1991-10-01 00:00:00

abstract：:The induction of schistosomulicidal activity of peritoneal macrophages by concanavalin A-stimulated supernatants from long-term T-cell clones and by interferon-gamma (IFN-gamma) was investigated in detail. Optimal conditions of in vitro macrophage activation by T-cell clone supernatants were established. Macrophages f...

journal_title：Parasitology

authors： Kubelka CF,Ruppel A,Krammer PH,Gemsa D

更新日期：1986-04-01 00:00:00

abstract：:The occurrence of multiple-clone Plasmodium falciparum haploid blood-stage infections is a pre-requisite for cross-fertilization and genetic exchange at the diploid stage in the mosquito. Using monoclonal antibodies against 3 polymorphic blood-stage antigens, a method of two-colour differential immunofluorescence allo...

journal_title：Parasitology

authors： Conway DJ,Greenwood BM,McBride JS

更新日期：1991-08-01 00:00:00

abstract：:Australian tea tree oil (TTO) and its extract terpinen-4-ol (T4O) are found to be effective in moderating demodex-related diseases. Their possible effects are lowering the mite counts, relieving the demodex-related symptoms and modulating the immune system especially the inflammatory response. This review summarizes t...

journal_title：Parasitology

authors： Lam NSK,Long XX,Griffin RC,Chen MK,Doery JC

更新日期：2018-10-01 00:00:00

abstract：SUMMARY:The domestic dog's involvement with different members of the Trypanosomatidae family has been the focus of several studies due to this animal's close proximity to man. Recently this animal has been infected by a new Trypanosoma species (T. caninum), described in Rio de Janeiro and 19 similar isolates were later...

journal_title：Parasitology

authors： De S Pinto AG,Schubach TM,Figueiredo FB,Baptista C,Fagundes A,Da S Barros JH,De Paula CC,Toma HK,Madeira MF

更新日期：2010-09-01 00:00:00

abstract：:Trophically transmitted parasites must trade-off own growth on one hand and energy drain from the intermediate host on the other hand, since killing the host before transmission to the next host is a dead end for both parasites and hosts. This challenge becomes especially intriguing when multiple parasites find themse...

journal_title：Parasitology

authors： Nordeide JT,Matos F

更新日期：2016-09-01 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：:The capacity of Acanthocheilonema viteae to metabolize fructose was investigated in vitro. In common with other filarial species A. viteae oxidized fructose to lactate but its rate of consumption was only 40% of the glucose-containing control value. Fructose was not incorporated into glycogen. Release of 14CO2 from [U...

journal_title：Parasitology

authors： Hayes DJ,Carter NS

更新日期：1990-12-01 00:00:00

abstract：:We studied the component community of lung-worms of the harbour porpoise, attempting to establish the relative importance of ecological and evolutionary factors on its development. The lungs of 64 porpoises by-caught in Norwegian waters were examined for helminths. Three pseudaliid species were detected. The porpoises...

journal_title：Parasitology

authors： Balbuena JA,Aspholm PE,Andersen KI,Bjørge A

更新日期：1994-04-01 00:00:00

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：:An enzymatic comparison has been made between isolates of Schistosoma mansoni from rats and humans in Guadeloupe and a Burundi isolate of S. rodhaini. Analyses of LDH, MDH, AcP, PGM, GPI, G6PDH and HK by isoelectric focusing provided no evidence for the involvement of S. rodhaini in the recent evolution of the schisto...

journal_title：Parasitology

authors： Rollinson D,Imbert-Establet D,Ross GC

更新日期：1986-08-01 00:00:00

abstract：:A 186 bp Echinococcus granulosus-specific repetitive element, TREg, was used to assess genetic variation between strains. In G7 genotype (pig strain) it has the characteristics of a satellite DNA element with a copy number of 23000 per haploid genome. Analysis, by sequencing of TREg monomers, showed a great degree of ...

journal_title：Parasitology

authors： Rosenzvit MC,Canova SG,Kamenetzky L,Guarnera EA

更新日期：2001-10-01 00:00:00

abstract：:Cats were repeatedly inoculated with infective larvae of Brugia pahangi. On parasitological grounds they could be divided into 5 groups. Group I--most cats (some 70%) became microfilaraemic (mf+) and retained high levels of microfilariae (mf) in their blood for over 2 years. In some Group I cats mf counts stabilized a...

journal_title：Parasitology

authors： Denham DA,Medeiros F,Baldwin C,Kumar H,Midwinter IC,Birch DW,Smail A

更新日期：1992-06-01 00:00:00

abstract：:Theileria annulata infects and reversibly transforms bovine leucocytes. The parasite-transformed cells are immortalized, metastatic and express a number of metalloproteinases including matrix metalloproteinase 9 which they secrete. All the metalloproteinases observed on substrate gels are inhibited by tissue inhibitor...

journal_title：Parasitology

authors： Adamson RE,Hall FR

更新日期：1996-11-01 00:00:00

abstract：:Philasterides dicentrarchi causes a severe disease in turbot, and at present there are no drugs available to treat infected fish. We have previously demonstrated that, in addition to the classical respiratory pathway, P. dicentrarchi possesses an alternative mitochondrial respiratory pathway that is cyanide-insensitiv...

journal_title：Parasitology

authors： Mallo N,Lamas J,Leiro JM

更新日期：2014-09-01 00:00:00

abstract：:To investigate the quantitative distribution of Plasmodiumfalciparum gametocytes into the vector bloodmeal, Anopheles arabiensis mosquitoes were fed on 3 volunteers naturally infected with gametocytes. The content of each mosquito midgut was smeared on a microscope slide and Giemsa stained. The distribution of gametoc...

journal_title：Parasitology

authors： Pichon G,Awono-Ambene HP,Robert V

更新日期：2000-08-01 00:00:00

abstract：:The fine structure of the envelopes surrounding hatched and unhatched oncospheres of Hymenolepis nana has been investigated by transmission and scanning electron microscopy (SEM), together with light microscope histochemical observations of JB-4 embedded material. The oncosphere is surrounded by 3 layers--the capsule,...

journal_title：Parasitology

authors： Fairweather I,Threadgold LT

更新日期：1981-06-01 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：:The diversity and prevalence of malaria parasites of the genera Plasmodium and Haemoproteus were determined in the globally-threatened Aquatic Warbler Acrocephalus paludicola. Birds were sampled during migration in Portugal and at the wintering quarters in Senegal and parasites were detected using molecular methods. O...

journal_title：Parasitology

authors： Neto JM,Pérez-Rodríguez A,Haase M,Flade M,Bensch S

更新日期：2015-08-01 00:00:00

abstract：:The group of haemosporidian parasites is of general interest to basic and applied science, since several species infect mammals, leading to malaria and associated disease symptoms. Although the great majority of haemosporidian parasites appear in bird hosts, as in the case of Leucocytozoon buteonis, there is little ge...

journal_title：Parasitology

authors： Chakarov N,Greiner JF,Hauser S,Schuetzmann D,Krüger O,Boerner M,Wıdera D

更新日期：2012-10-01 00:00:00

abstract：:Blood examination by microhaematocrit and haemoculture of 459 snakes belonging to 37 species revealed 2.4% trypanosome prevalence in species of Viperidae (Crotalus durissus and Bothrops jararaca) and Colubridae (Pseudoboa nigra). Trypanosome cultures from C. durissus and P. nigra were behaviourally and morphologically...

journal_title：Parasitology

authors： Viola LB,Campaner M,Takata CS,Ferreira RC,Rodrigues AC,Freitas RA,Duarte MR,Grego KF,Barrett TV,Camargo EP,Teixeira MM

更新日期：2008-04-01 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：:The period 1875-1925 was remarkable in the history of parasitology mainly for the elucidation of the life cycles of parasites causing important parasitic diseases and the incrimination of vectors in their transmission. These discoveries were made by a small number of scientists working in the tropics a number of whom ...

journal_title：Parasitology

authors： Cox FEG

更新日期：2017-10-01 00:00:00

abstract：:A novel repetitive DNA sequence in the sheep parasitic nematode Trichostrongylus colubriformis was cloned and sequenced. A 1.1 kb repetitive sequence (Tc15) which hybridized with DNA from T. colubriformis but not with DNA from two other parasitic nematodes, Haemonchus contortus and Ostertagia circumcincta, or sheep wa...

journal_title：Parasitology

authors： Callaghan MJ,Beh KJ

更新日期：1994-09-01 00:00:00

abstract：OBJECTIVE:Unravelling the determinants of parasite life-history traits in natural settings is complex. Here, we deciphered the relationships between biotic, abiotic factors and the variation in 4 life-history traits (body size, egg presence, egg number and egg size) in the fish ectoparasite Tracheliastes polycolpus. We...

journal_title：Parasitology

authors： Loot G,Poulet N,Brosse S,Tudesque L,Thomas F,Blanchet S

更新日期：2011-06-01 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