An introduced pentastomid parasite (Raillietiella frenata) infects native cane toads (Rhinella marina) in Panama.

abstract：:A recombinant baculovirus-expressed hybrid protein containing epitopes for the C-terminal fragment of the Plasmodium falciparum precursor to the major merozoite surface antigens (PMMSA) and the tetrapeptide repeats of the circumsporozoite protein (CSP) was assessed for its immunogenicity. Murine MHC-II restriction of ...

journal_title：Parasitology

authors： Lockyer MJ,Cooper H,Tite J,Rowan W,Crowe JS

更新日期：1993-06-01 00:00:00

abstract：:The host-parasite relationship is exquisitely specific. In exploiting the host niche, a variety of helminth parasites have been shown to directly manipulate their hosts' immune responses. We assessed the ability of a whole-worm extract of Hymenolepis diminuta to modulate immune cell activation. Immune cells isolated f...

journal_title：Parasitology

authors： Wang A,McKay DM

更新日期：2005-05-01 00:00:00

abstract：:To test the homogeneity of 18S sequences within Trypanosoma cruzi, riboprint profiles were separated by temperature gradient gel electrophoresis (TGGE). Upon interpretation of melting curves of fragments within a riboprint profile, there appeared to be two 18S sequence types within each stock examined. Two similar typ...

journal_title：Parasitology

authors： Stothard JR,Frame IA,Carrasco HJ,Miles MA

更新日期：1998-09-01 00:00:00

abstract：:We examined the effects of Haemoproteus infection on the survival and pathology caused in the biting midges. Forty-six females of Culicoides impunctatus were exposed experimentally by allowing them to feed on a naturally infected red-backed shrike infected with Haemoproteus lanii (lineage hRB1, gametocytaemia 5·2%). S...

journal_title：Parasitology

authors： Bukauskaitė D,Bernotienė R,Iezhova TA,Valkiūnas G

更新日期：2016-11-01 00:00:00

abstract：:West-central China is an important endemic focus of both alveolar and cystic echinococcosis where several species of intermediate host are commonly infected with Echinococcus granulosus and E. multilocularis . Isolates of E. granulosus were collected from humans and other animals from different geographical areas of Q...

journal_title：Parasitology

authors： Yang YR,Rosenzvit MC,Zhang LH,Zhang JZ,McManus DP

更新日期：2005-10-01 00:00:00

abstract：:The radiation-attenuated schistosome vaccine induces a high level of protective immunity in rodents. In order to assess its potential relevance to man, we have tested its efficacy in the non-human primate Papio anubis. A vaccination regime consisting of 3 exposures of approximately 9000 cercariae irradiated with 30 or...

journal_title：Parasitology

authors： Yole DS,Pemberton R,Reid GD,Wilson RA

更新日期：1996-01-01 00:00:00

abstract：:Trypanosomes are blood-borne parasites that can infect a variety of different vertebrates, including animals and humans. This study aims to broaden scientific knowledge about the presence and biodiversity of trypanosomes in Australian bats. Molecular and morphological analysis was performed on 86 blood samples collect...

journal_title：Parasitology

authors： Austen JM,Van Kampen E,Egan SL,O'Dea MA,Jackson B,Ryan UM,Irwin PJ,Prada D

更新日期：2020-12-01 00:00:00

abstract：:We investigated intestinal trichomonads in western lowland gorillas, central chimpanzees and humans cohabiting the forest ecosystem of Dzanga-Sangha Protected Area in Central African Republic, using the internal transcribed spacer (ITS) region and SSU rRNA gene sequences. Trichomonads belonging to the genus Tetratrich...

journal_title：Parasitology

authors： Petrželková KJ,Smejkalová P,Céza V,Pafčo B,Shutt-Phillips KA,Todd A,Jirků-Pomajbíková K,Benavides J,Modrý D,Čepička I

更新日期：2020-02-01 00:00:00

abstract：:Most sylvatic species of Trichinella are known to have poor infectivity to rats, but in the present study oral administration of bile from other hosts appeared to modify this infectivity. A total of 75 rats were inoculated in groups of 25 with 3 species of Trichinella (T. spiralis, T. nativa, and T. nelsoni) and each ...

journal_title：Parasitology

authors： Theodoropoulos G,Styliara M,Petrakos M,Kapel CM

更新日期：2003-05-01 00:00:00

abstract：:Bile salts have been identified as an important trigger for excystation of Cryptosporidium oocysts but the hierarchy or synergism of this signal in relation to other triggers involved in excystation is poorly understood. In addition to excystation, bile salts have also been reported to increase the invasiveness of spo...

journal_title：Parasitology

authors： King BJ,Keegan AR,Phillips R,Fanok S,Monis PT

更新日期：2012-10-01 00:00:00

abstract：:Planning of the control of Plasmodium falciparum malaria leads to a need for models of malaria epidemiology that provide realistic quantitative prediction of likely epidemiological outcomes of a wide range of control strategies. Predictions of the effects of control often ignore medium- and long-term dynamics. The com...

journal_title：Parasitology

authors： Smith T,Maire N,Ross A,Penny M,Chitnis N,Schapira A,Studer A,Genton B,Lengeler C,Tediosi F,de Savigny D,Tanner M

更新日期：2008-11-01 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：: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：:Intestinal diarrheagenic polyparasitic infections are among the major public health concerns in developing countries. Here we examined stool specimens by microscopy, DNA dot blot and polymerase chain reaction (PCR) to evaluate the co-infection of four principal protozoans among amoebic dysentery cases from Northeast I...

journal_title：Parasitology

authors： Nath J,Hussain G,Singha B,Paul J,Ghosh SK

更新日期：2015-09-01 00:00:00

abstract：:Sodium fluoride (NaF) is an anion that has been previously shown to block the moulting process of Ascaris suum larvae. This study describes moulting and development-specific protein expression profiles of A. suum lung-stage L3 (AsLL3) following NaF exposure. AsLL3s cultured in the presence or absence of NaF were prepa...

journal_title：Parasitology

authors： Islam MK,Miyoshi T,Yamada M,Alim MA,Huang X,Motobu M,Tsuji N

更新日期：2006-10-01 00:00:00

abstract：:We have studied the genomic organization and transcription of the histone H2A genes in the protozoan parasite Leishmania infantum. In the parasite genome 2 gene clusters exist, each containing 3 H2A gene copies. Sequence analyses showed the existence of significant sequence divergence among the H2A genes, mainly in th...

journal_title：Parasitology

authors： Soto M,Quijada L,Larreta R,Iborra S,Alonso C,Requena JM

更新日期：2003-08-01 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：:The sex ratio of adult worms has been observed biased towards males in Schistosoma mansoni under natural conditions. The origin of this bias is unknown. This paper determines whether males are more infective than females under controlled experimental bisexual conditions, and hence if the sex ratio is male-biased as a ...

journal_title：Parasitology

authors： Boissier J,Moné H

更新日期：2000-10-01 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：:Diseases caused by viruses are a constant and major problem for livestock production world wide. The diseases range from highly contagious acute forms with high mortality, to chronic disabling diseases with an insidious effect on production. Such diseases cannot be regarded as static in nature due to the highly mutabl...

journal_title：Parasitology

authors： Crowther JR

更新日期：1998-01-01 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：:Species composition of wild reservoir hosts can influence the transmission and maintenance of multi-host vector borne pathogens. The 'pace of life' hypothesis proposes that the life history strategy of reservoir hosts can influence pathogen transmission of vector borne generalist pathogens. We use empirical data to pa...

journal_title：Parasitology

authors： Erazo D,Cordovez J,Cabrera C,Calzada JE,Saldaña A,Gottdenker NL

更新日期：2017-12-01 00:00:00

abstract：:Intra-erythrocytic stages of malaria parasites can alter the surface of their host cells and release toxins which induce the production of cytokines, which in turn can up- or down-regulate the expression of adhesion receptors on the surface of microvascular endothelial cells. New adhesion receptors on endothelial cell...

journal_title：Parasitology

authors： Hommel M

更新日期：1997-01-01 00:00:00

abstract：:To compare the structures of natural and re-established populations of Ascaris in humans, universal (mass) chemotherapy was carried out at the beginning and the end of the study year using pyrantel pamoate. Worms expelled within 48 h of treatment were collected, their sex determined, and measurements made of length, w...

journal_title：Parasitology

authors： Peng W,Cui X,Zhou X

更新日期：2002-06-01 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：:Plants containing condensed tannins (CT) may have potential to control gastrointestinal nematodes (GIN) of cattle. The aim was to investigate the anthelmintic activities of four flavan-3-ols, two galloyl derivatives and 14 purified CT fractions, and to define which structural features of CT determine the anti-parasiti...

journal_title：Parasitology

authors： Desrues O,Fryganas C,Ropiak HM,Mueller-Harvey I,Enemark HL,Thamsborg SM

更新日期：2016-04-01 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：: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：: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：:Interferon-gamma (IFN-gamma) has a crucial role for host defence against parasite infection. It is not clear, however, how IFN-gamma affects the parasite-infected host cells. The effect of IFN-gamma on Neospora caninum-infected cells was investigated in murine fibroblasts and canine kidney cells in vitro. In the prese...

journal_title：Parasitology

authors： Nishikawa Y,Mishima M,Nagasawa H,Igarashi I,Fujisaki K,Otsuka H,Mikami T

更新日期：2001-07-01 00:00:00