New defined and semi-defined media for cultivation of the flagellate Trichomonas vaginalis.

abstract：:Recombinant ribosomal DNA sequences were amplified by PCR and used as probes to perform a fingerprint analysis of total DNA from different Entamoeba histolytica isolates. RFLPs obtained with one of the probes, R-1, support previous proposals that pathogenic and non-pathogenic E. histolytica are closely related, yet ge...

journal_title：Parasitology

authors： Cruz-Reyes JA,Spice WM,Rehman T,Gisborne E,Ackers JP

更新日期：1992-04-01 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：:Chagas disease chemotherapy is based on drugs that exhibit toxic effects and have limited efficacy, such as Benznidazole. Therefore, research into new chemotherapeutic agents from natural sources needs to be exploited. Apis mellifera venom consists of many biologically active molecules and has been reported to exhibit...

journal_title：Parasitology

authors： Adade CM,Chagas GS,Souto-Padrón T

更新日期：2012-09-01 00:00:00

abstract：:The global seroprevalence of latent toxoplasmosis is estimated to be higher than 30%. The presence of slowly dividing parasites in tissue cysts located mainly in immunoprivileged organs was long considered asymptomatic. Recently, many studies have shown that latent Toxoplasma infections could have serious impacts on h...

journal_title：Parasitology

authors： Flegr J,Escudero DQ

更新日期：2016-12-01 00:00:00

abstract：:Polysporoplasma sparis infection was studied in gilthead sea bream from different mariculture systems of the Spanish coasts. Culture conditions influenced the infection dynamics, as the parasite appeared only in semi-intensive cultures and was not found in intensive closed systems nor in open ones. No clear seasonal p...

journal_title：Parasitology

authors： Palenzuela O,Alvarez-Pellitero P,Sitjà-Bobadilla A

更新日期：1999-03-01 00:00:00

abstract：:The ribosomal RNA (rRNA) gene units of Schistosoma mansoni and S. rodhaini, of the lateral spined egg group, have been studied. The schistosome rRNA gene unit consists of a regular interspersion of the two genes encoding the large and small rRNA units with two spacers. The large spacer is not transcribed while the sma...

journal_title：Parasitology

authors： Walker TK,Simpson AJ,Rollinson D

更新日期：1989-02-01 00:00:00

abstract：:If parasitic infection is a driving force in female mate choice, then females should preferentially select parasite-free males. The role of infection on female mate choice in mammals was assessed using a 3-chambered apparatus. A female CD-1 mouse was allowed to choose between 2 tethered male mice, 1 uninfected and 1 i...

journal_title：Parasitology

authors： Ehman KD,Scott ME

更新日期：2002-11-01 00:00:00

abstract：:Anti-trypanosomiasis vaccination still remains the best theoretical option in the fight against a disease that is continuously hovering between its wildlife reservoir and its reservoir in man and livestock. While antigenic variation of the parasite surface coat has been considered the major obstacle in the development...

journal_title：Parasitology

authors： Magez S,Caljon G,Tran T,Stijlemans B,Radwanska M

更新日期：2010-12-01 00:00:00

abstract：:Ascarid parasites infect a variety of hosts and regular anthelmintic treatment is recommended for all species. Parascaris spp. is the only ascarid species with widespread anthelmintic resistance, which allows for the study of resistance mechanisms. The purpose of this study was to establish an in vitro drug exposure p...

journal_title：Parasitology

authors： Scare JA,Dini P,Norris JK,Steuer AE,Scoggin K,Gravatte HS,Howe DK,Slusarewicz P,Nielsen MK

更新日期：2020-05-01 00:00:00

abstract：:Patterns of genetic subdivision in parasite populations can provide important insights into transmission processes and complement information obtained using traditional epidemiological techniques. We describe mitochondrial sequence variation in 265 Ascaris collected from 62 individual hosts (humans and pigs) from 35 h...

journal_title：Parasitology

authors： Anderson TJ,Romero-Abal ME,Jaenike J

更新日期：1995-02-01 00:00:00

abstract：:Invasive parasites can spill over to new hosts in invaded ecosystems with often unpredictable trophic relationships in the newly arising parasite-host interactions. In European seas, the intestinal copepod Mytilicola orientalis was co-introduced with Pacific oysters (Magallana gigas) and spilled over to native blue mu...

journal_title：Parasitology

authors： Goedknegt MA,Shoesmith D,Jung AS,Luttikhuizen PC,van der Meer J,Philippart CJM,van der Veer HW,Thieltges DW

更新日期：2018-05-01 00:00:00

abstract：:Parasites often induce behavioural changes in their host. However, it is not necessarily easy to determine whether these changes are representative of an adaptation of the parasite (parasite manipulation), an adaptive response of the host or a side-effect of infection. In a solitary parasitoid of Drosophila larvae (Le...

journal_title：Parasitology

authors： Varaldi J,Petit S,Boulétreau M,Fleury F

更新日期：2006-06-01 00:00:00

abstract：:Stability of trichostrogylid populations indicates that some form of density-dependent regulation occurs which could act through fecundity. We present evidence for intraspecific density-dependent effects in 1 of 2, dominant, abomasal nematodes species (Ostertagia gruehneri) of Svalbard reindeer (Rangifer tarandus plat...

journal_title：Parasitology

authors： Irvine RJ,Stien A,Dallas JF,Halvorsen,Langvatn R,Albon SD

更新日期：2001-06-01 00:00:00

abstract：:Giardia lamblia localize and multiply in the small intestine and may cause acute or chronic diarrhoea with malabsorption of fat, protein and other nutrients. Abnormal pancreatic function has been documented in giardiasis and trophozoites directly inhibit pancreatic lipase activity in vitro. The aim of this study was t...

journal_title：Parasitology

authors： Seow F,Katelaris P,Ngu M

更新日期：1993-04-01 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：:The localization of adult Schistosoma mansoni originating from Guadeloupe (West Indies) was analysed in the natural host Rattus rattus in experimental and natural infections. A transfer of schistosomes from the porto-mesenteric system to the lungs occurs between the 4th and the 20th weeks post-infection, with a peak b...

journal_title：Parasitology

authors： Imbert-Establet D,Combes C

更新日期：1992-02-01 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：:Prevention of heartworm disease caused by Dirofilaria immitis in domestic dogs and cats relies on a single drug class, the macrocyclic lactones (MLs). Recently, it has been demonstrated that ML-resistant D. immitis are circulating in the Mississippi Delta region of the USA, but the prevalence and impact of these resis...

journal_title：Parasitology

authors： Wolstenholme AJ,Evans CC,Jimenez PD,Moorhead AR

更新日期：2015-09-01 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：:A new model for the study of granuloma formation in the liver is described. Rats received an injection of 20,000 Schistosoma mansoni eggs in the portal vein and granuloma formation was evaluated at 3, 5 and 7 weeks post-injection. Liver collagen was estimated at the same time and serum procollagen III peptide, a marke...

journal_title：Parasitology

authors： Van Gool J,Van Tiel D,Doenhoff MJ,Van Vugt H

更新日期：1991-02-01 00:00:00

abstract：:Nematodes represent one of the most abundant and species-rich groups of animals on the planet, with parasitic species causing chronic, debilitating infections in both livestock and humans worldwide. The prevalence and success of the nematodes is a direct consequence of the exceptionally protective properties of their ...

journal_title：Parasitology

authors： Stepek G,McCormack G,Birnie AJ,Page AP

更新日期：2011-02-01 00:00:00

abstract：:We present a new phylogenetic analysis of 15 primate Plasmodium species based on 18S rDNA sequences including new sequences of Plasmodium coatneyi, P. fieldi, P. gonderi, P. hylobati and P. simium. The results are discussed in the context of the parasite host species and their geographical distribution. Contrary to ot...

journal_title：Parasitology

authors： Leclerc MC,Hugot JP,Durand P,Renaud F

更新日期：2004-12-01 00:00:00

abstract：:The free radical nitric oxide (NO) is a neuronal messenger which is synthesized from L-arginine and O2 by nitric oxide synthase (NOS). In the synthesis NO and L-citrulline are produced in a stoichiometric 1:1 relation. The activity of NOS was analysed in homogenates of the rat tapeworm Hymenolepis diminuta by measurin...

journal_title：Parasitology

authors： Terenina NB,Onufriev MV,Gulyaeva NV,Lindholm AM,Gustafsson MK

更新日期：2000-01-01 00:00:00

abstract：:An electron microscopical study was made on the development of Eimeria dispersa in the small intestine of the domestic turkey. Turkey poults, 10-14 days of age, were inoculated with oocysts and pieces of intestinal tissue were fixed at intervals between 3.5 and 114 h after inoculation. Sporozoites were occasionally se...

journal_title：Parasitology

authors： Millard BJ,Lawn AM

更新日期：1982-02-01 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：:The pentastomid parasite, Raillietiella frenata, is native to Asia where it infects the Asian House gecko, Hemidactylus frenatus. This gecko has been widely introduced and recently R. frenata was found in introduced populations of cane toads (Rhinella marina) in Australia, indicating a host-switch from introduced geck...

journal_title：Parasitology

authors： Kelehear C,Saltonstall K,Torchin ME

更新日期：2015-04-01 00:00:00

abstract：:The efficiency of treatment of human infections with the unicellular eukaryotic pathogens such as fungi and protozoa remains deeply unsatisfactory. For example, the mortality rates from nosocomial fungemia in critically ill, immunosuppressed or post-cancer patients often exceed 50%. A set of six systemic clinical azol...

journal_title：Parasitology

authors： Lepesheva GI,Friggeri L,Waterman MR

更新日期：2018-12-01 00:00:00

abstract：:Essential oils (EOs) are considered a new class of ecological products aimed at the control of insects for industrial and domestic use; however, there still is a lack of studies involving the control of fleas. Ctenocephalides felis felis, the most observed parasite in dogs and cats, is associated with several diseases...

journal_title：Parasitology

authors： Dos Santos JVB,de Almeida Chaves DS,de Souza MAA,Riger CJ,Lambert MM,Campos DR,Moreira LO,Dos Santos Siqueira RC,de Paulo Osorio R,Boylan F,Correia TR,Coumendouros K,Cid YP

更新日期：2020-03-01 00:00:00

abstract：:Population genetics of multi-host pathogens offers great potential for the understanding of their complex epidemiology but care must be taken to ensure that the sampling procedure does not bias estimates of population indices. The transfer of material to laboratory passage, in particular, runs the risk of bottleneckin...

journal_title：Parasitology

authors： Shrivastava J,Gower CM,Balolong E Jr,Wang TP,Qian BZ,Webster JP

更新日期：2005-11-01 00:00:00

abstract：:Seroprevalence data illustrate that human exposure to Toxocara is frequent. Environmental contamination with Toxocara spp. eggs is assumed to be the best indicator of human exposure, but increased risk of exposure has also been associated with many other factors. Reported associations are inconsistent, however, and th...

journal_title：Parasitology

authors： Kanobana K,Devleesschauwer B,Polman K,Speybroeck N

更新日期：2013-07-01 00:00:00