Strongyloides ratti: studies of 75Se-labelled larvae of the homogonic strain in female hosts.

abstract：:The incidence of fever among infants in the village of Idete in the Morogoro region of Tanzania was analyzed in relation to densities of Plasmodium falciparum parasites in the peripheral blood. Parasite densities in both fever cases and in asymptomatic infants, were compared and a Bayesian non-parametric mixture decom...

journal_title：Parasitology

authors： Vounatsou P,Smith T,Kitua AY,Alonso PL,Tanner M

更新日期：2000-01-01 00:00:00

abstract：:Amoebiasis, infection by the protozoan parasite Entamoeba histolytica, remains a global health problem, despite the availability of effective treatment. While improved sanitation could lead to the eradication of this disease, it is unlikely that this will occur worldwide in the foreseeable future; thus alternative mea...

journal_title：Parasitology

authors： Stanley SL Jr

更新日期：2006-01-01 00:00:00

abstract：:Early in the history of schistosomiasis research, children under 5 years of age were known to be infected. Although this problem was recognized over 100 years ago, insufficient action has been taken to address this issue. Under current policy, such infected children only receive their first antiparasitic treatment (pr...

journal_title：Parasitology

authors： Bustinduy AL,Wright S,Joekes EC,Kabatereine NB,Reinhard-Rupp J,King CH,Stothard JR

更新日期：2017-10-01 00:00:00

abstract：:An apparatus for artificial feeding of Rhipicephalus appendiculatus nymphae was modified to improve feeding performance. Heparinized blood was supplied above a treated artificial membrane while the ticks attached below on its undersurface. The feeding apparatus was incubated at 37 degrees C in an atmosphere of 3% CO2 ...

journal_title：Parasitology

authors： Waladde SM,Young AS,Mwaura SN,Njihia GN,Mwakima FN

更新日期：1995-11-01 00:00:00

abstract：:Protoscoleces of Echinococcus granulosus absorb the L-amino acids proline, methionine, leucine, alanine, serine, phenylalanine, lysine and glutamic acid by a combination of mediated transport and diffusion. All eight amino acids were accumulated against a concentration gradient. Comparison of Kt and Vmax values sugges...

journal_title：Parasitology

authors： Jeffs SA,Arme C

更新日期：1987-08-01 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：:A culture chamber fitted with a polycarbonate sieve has been used to isolate Plasmodium knowlesi merozoites as they are released from schizonts. A 3 mum pore-size sieve allows passage of normal erythrocytes and red cells containing rings and trophozoites and can be used to concentrate schizonts from a mixed cell popul...

journal_title：Parasitology

authors： Dennis ED,Mitchell GH,Butcher GA,Cohen S

更新日期：1975-12-01 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：: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

abstract：:The present study was undertaken to investigate the antiparasitic activity of extracellular products of Streptomyces albus. Bioactivity-guided isolation of chloroform extracts affording a compound showing potent activity. The structure of the compound was elucidated as salinomycin (SAL) by EI-MS, 1H NMR and 13C NMR. I...

journal_title：Parasitology

authors： Yao JY,Gao MY,Jia YY,Wu YX,Yin WL,Cao Z,Yang GL,Huang HB,Wang CF,Shen JY,Gu ZM

更新日期：2019-04-01 00:00:00

abstract：:Recent studies of the forces behind the diversification of parasite assemblages have shed light on many aspects of parasite biodiversity. By using only parasite species richness as their measure of diversity, however, previous investigations have ignored the relatedness among parasite species and the taxonomic structu...

journal_title：Parasitology

authors： Luque JL,Mouillot D,Poulin R

更新日期：2004-06-01 00:00:00

abstract：:The in vivo activity of two cyclosporins, cyclosporin A (CsA) and a non-immunosuppressive derivative of dihydrocylosporin A (DHCsA-d) against three tapeworms, Hymenolepis microstoma, H. diminuta and Mesocestoides corti, has been assessed. CsA reversibly reduced the dry weight of H. microstoma in the mouse, briefly del...

journal_title：Parasitology

authors： Chappell LH,Wastling JM,Hurd H

更新日期：1989-04-01 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：: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：:Oocysts of Cryptosporidium parvum showed relatively low levels of SOD activity. The SOD which had a pI of 4.8 and an approximate molecular weight of 35 kDa appeared to be iron dependent. Catalase, glutathione transferase, glutathione reductase and glutathione peroxidase activity could not be detected, nor could trypan...

journal_title：Parasitology

authors： Entrala E,Mascaro C,Barrett J

更新日期：1997-01-01 00:00:00

abstract：:While purine transport has been widely studied in protozoa, almost nothing is known about their capacity to salvage pyrimidines. Here, we report a Leishmania major transporter with high affinity for uracil (Km=0.32+/-0.07 microM) which we designated LmU1. This transporter displayed a high degree of specificity, as it ...

journal_title：Parasitology

authors： Papageorgiou IG,Yakob L,Al Salabi MI,Diallinas G,Soteriadou KP,De Koning HP

更新日期：2005-03-01 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

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：:Cyst fluid (CF) of Taenia solium metacestode (TsM) is an important source of serodiagnostic antigens. We have investigated the molecular characteristics of the 120 kDa protein complex in TsM CF purified by fast performance liquid chromatography. The structure of the purified protein was characterized by a variety of p...

journal_title：Parasitology

authors： Lee EG,Bae YA,Jeong YT,Chung JY,Je EY,Kim SH,Na BK,Ju JW,Kim TS,Ma L,Cho SY,Kong Y

更新日期：2005-12-01 00:00:00

abstract：:Here, the validity of the assumption of concerted evolution of ribosomal regions in larval and adult Cooperia oncophora was assessed. In each of 4 individuals of this parasitic nematode, at least 78% of the sequences comprised different ITS variants. This implies that concerted evolution is not acting, which is corrob...

journal_title：Parasitology

authors： Mes TH,Cornelissen AW

更新日期：2004-08-01 00:00:00

abstract：:The evolution of host specificity and the potential trade-off between being a generalist and a specialist are central issues in the evolutionary ecology of parasites. Different species of parasites or even different populations of the same species often show different degrees of host specificity. However, less is know...

journal_title：Parasitology

authors： Leung TL,Poulin R

更新日期：2010-02-01 00:00:00

abstract：:Immunological and structural changes in the thymus and pronephros of Cyprinus carpio infected with the blood fluke, Sanguinicola inermis for 30 days, and exposed to 0.5 mg NH4+/1 for 48 and 168 h were investigated. Ultrastructural observations revealed cell disruption and highly vacuolated cytoplasm in the thymus. Of ...

journal_title：Parasitology

authors： Schuwerack PM,Lewis JW,Hoole D,Morley NJ

更新日期：2001-03-01 00:00:00

abstract：:Microvilli are developed on the surface of Schistosoma mansoni schistosomula during penetration of the host skin; they form rapidly but are lost approximately 90 min after penetration. Identical microvilli are also formed on schistosomula which have penetrated a mouse skin preparation in vitro, and on schistosomula pr...

journal_title：Parasitology

authors： McLaren DJ,Hockley DJ

更新日期：1976-10-01 00:00:00

abstract：:The ultrastructure of the seminal vesicle, ejaculatory duct, cirrus sac and cirrus is described. The epithelium of the seminal vesicle consists of a single layer of squamous to cuboidal cells. The apical ends of the cells have thin polymorphic lamellae and long narrow pits, both of which enclose normal spermatozoa. Th...

journal_title：Parasitology

authors： Threadgold LT

更新日期：1975-12-01 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：:Immunopathological and ultrastructural studies were carried out on the gut of 30 specimens of powan Coregonus lavaretus (L.) from Lake Piediluco, Italy. The digestive tracts of 10 (33.3%) of the powan were found to harbour an acanthocephalan Dentitruncus truttae (Sinzar 1955). The numerous trunk spines of D. truttae r...

journal_title：Parasitology

authors： Dezfuli BS,Lui A,Giovinazzo G,Boldrini P,Giari L

更新日期：2009-07-01 00:00:00

abstract：:During the course of Schistosoma mansoni murine infection there is a dramatic increase of some immunoglobulins and S. mansoni-specific antibodies. The most substantial response is initiated after 40 days of infection and results in a prolonged increase of total IgG1, IgM and IgA. The maximum increase is respectively 2...

journal_title：Parasitology

authors： Bout D,Rousseaux R,Carlier Y,Capron A

更新日期：1980-04-01 00:00:00

abstract：:Taenia cestodes were obtained from 5 different definitive host species in Kenya and 175 different samples were examined by classical morphological methods and by isoenzyme analysis using isoelectric focusing in agarose. Gels were stained for 17 different enzymes and 3 of these were used in the construction of isoenzym...

journal_title：Parasitology

authors： Allsopp BA,Jones A,Allsopp MT,Newton SD,Macpherson CN

更新日期：1987-12-01 00:00:00

abstract：:Ticks are of vast medical and veterinary public health importance due to direct damage caused by feeding and their roles in transmitting well known and emerging infectious agents. Ticks and tick-borne pathogens stimulate the immune system of the host. Those immune interactions are of importance in tick biology, pathog...

journal_title：Parasitology

authors： Brossard M,Wikel SK

更新日期：2004-01-01 00:00:00

abstract：:Brugia malayi is one of the parasitic worms which causes lymphatic filariasis in humans. Its geographical distribution includes a large part of Asia. Despite its wide distribution, very little is known about the genetic variation and molecular epidemiology of this species. In this study, the internal transcribed space...

journal_title：Parasitology

authors： Fong MY,Noordin R,Lau YL,Cheong FW,Yunus MH,Idris ZM

更新日期：2013-01-01 00:00:00