Abstract:
:Neospora caninum is a cyst-forming parasite that causes abortion in cattle. Despite this parasite's ubiquitous distribution and wide host range, the number of N. caninum isolates obtained to date is limited. In vitro isolation of the parasite is arduous and often unsuccessful. In addition, most isolates have been obtained from clinically affected hosts and therefore could be biased towards more virulent isolates. In this report, an improved isolation approach from transplacentally infected newborn calves was undertaken and 9 new isolates were obtained. Moreover, a microsatellite technique was applied to investigate the genetic diversity of these isolates. Most isolates showed specific genetic profiles. However, the Nc-Spain10 isolate was identical to the previously described Nc-Spain1H isolate and Nc-Spain3H was identical to Nc-Spain4H. These isolates were likely to have identical genotypes because they were isolated from distinct calves of the same herd. Future pathogenic characterization of these isolates will contribute to the investigation of the relationship between isolate virulence and the outcome of infection, as well as other epidemiological features, such as transmission.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Regidor-Cerrillo J,Gómez-Bautista M,Pereira-Bueno J,Aduriz G,Navarro-Lozano V,Risco-Castillo V,Férnandez-García A,Pedraza-Díaz S,Ortega-Mora LMdoi
10.1017/S003118200800509Xsubject
Has Abstractpub_date
2008-12-01 00:00:00pages
1651-9issue
14eissn
0031-1820issn
1469-8161pii
S003118200800509Xjournal_volume
135pub_type
杂志文章相关文献
PARASITOLOGY文献大全abstract::Small RNAs are important regulators of gene expression. They were first identified in Caenorhabditis elegans, but it is now apparent that the main small RNA silencing pathways are functionally conserved across diverse organisms. Availability of genome data for an increasing number of parasitic nematodes has enabled bi...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182019001689
更新日期:2020-07-01 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
pub_type: 杂志文章
doi:10.1017/S0031182008004253
更新日期:2008-04-01 00:00:00
abstract::Cystic echinococcosis (CE) is a high prevalence zoonosis among the rural population of Tacuarembó (Uruguay). The correlation between serological data and the incidence of risk factors was studied in a survey carried out in 1998 among rural communities where 480 individuals were examined by means of abdominal sonograph...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182004006717
更新日期:2005-04-01 00:00:00
abstract::To assess the prevalence of Taenia solium cysticercosis in patients with neurological disorders in Slovenia, serum/cerebrospinal fluid (CSF) samples from 348 suspected patients were collected between the beginning of January 2001 and the end of December 2012 and analysed serologically for the presence of anti-T. soliu...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182013001947
更新日期:2014-04-01 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
pub_type: 杂志文章
doi:10.1017/s0031182099005442
更新日期:2000-03-01 00:00:00
abstract::Chemotactic responses of Strongyloides stercoralis infective larvae (L3) to sodium chloride (NaCl) were investigated by recording larval tracks on a saline gradient in agarose. On agarose, larvae migrated randomly, whereas when placed at 0.01 m NaCl larvae moved to approximately 1.1 m NaCl where they turned, headed do...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182003003433
更新日期:2003-08-01 00:00:00
abstract::Levamisole (Lms) is an anthelminthic drug with immunomodulatory activity. Chagas disease (CD) is caused by Trypanosoma cruzi and there is very low access to the drugs available, benznidazole (Bz) and nifurtimox, both far from ideal. In a drug-repurposing strategy to test potential activity as antiparasitic and immunom...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182019000374
更新日期:2019-07-01 00:00:00
abstract::Traditionally, the family Campulidae has been associated either with the family Fasciolidae, parasites of ruminants, or the Acanthocolpidae, parasites of fishes, based on morphological similarities. Since morphology does not seem to resolve clearly the problem of the relationships of campulids, we have used the sequen...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182098003126
更新日期:1998-10-01 00:00:00
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
pub_type: 杂志文章
doi:10.1017/s0031182099005211
更新日期:2000-01-01 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
pub_type: 杂志文章
doi:10.1017/s003118200006399x
更新日期:1995-02-01 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
pub_type: 杂志文章
doi:10.1017/s0031182000059497
更新日期:1991-10-01 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
pub_type: 杂志文章
doi:10.1017/S0031182016002183
更新日期:2017-04-01 00:00:00
abstract::Adults of the porocephalid pentastomid Porocephalus crotali infect the lung of rattlesnake definitive hosts and larvae develop in rat intermediate hosts. In the latter, nymphs encyst within a variety of tissue sites (commonly abdominal fat bodies and lungs) and each becomes the focus of an eosinophilic granuloma. From...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000074801
更新日期:1993-01-01 00:00:00
abstract::Merocyanin 540 (Mc540) is a fluorescent compound which is thought to bind to membranes in which there are substantial amounts of lipid in the lipid-crystalline phase. It is shown here to be of value in detecting the transformation by both mechanical and skin-penetration methods of the cercaria to the schistosomulum. T...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000081671
更新日期:1988-02-01 00:00:00
abstract::Vitellogenin synthesis by the fat body has been monitored using in vitro culture and immunoprecipitation. This system was found to be efficient for measuring vitellogenin production in both non-infected Tenebrio molitor and those infected with Hymenolepis diminuta. In fat bodies from infected beetles, vitellogenin pro...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000066658
更新日期:1996-04-01 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
pub_type: 杂志文章
doi:10.1017/s0031182000059709
更新日期:1989-02-01 00:00:00
abstract::Post-mesocyclic development of Trypanosoma brucei in the tsetse fly in its migration from midgut to salivary glands, was revisited by sequential microdissection, morphometry and DNA-cytofluorometry. This development started by day 6 after the infective feed, with passage of mesocyclic midgut trypomastigotes through pr...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182099004217
更新日期:1999-05-01 00:00:00
abstract::The development of drug resistance by the present Houghton strain of Eimeria tenella to the quinolones, methyl benzoquate and buquinolate, was found to take place after a single experimental passage. The development of resistance was independent of drug selection pressure and showed cross resistance to other quinolone...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000053130
更新日期:1975-08-01 00:00:00
abstract::We cloned and expressed Echinostoma caproni HSP70 in Escherichia coli. This molecule presents an open reading frame (ORF) of 655 amino acids, and a theoretical molecular weight of 71 kDa. E. caproni HSP70 protein showed a high homology to other helminth molecules, major differences being located in the C-terminal regi...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182008004927
更新日期:2008-10-01 00:00:00
abstract::We estimate the incidence rate, serological conversion rate and basic case reproduction number (R0) of Leishmania infantum from a cohort study of 126 domestic dogs exposed to natural infection rates over 2 years on Marajó Island, Pará State, Brazil. The analysis includes new methods for (1) determining the number of s...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182097001200
更新日期:1997-08-01 00:00:00
abstract::Multiple infections, those by more than one parasite in the same erythrocyte, may be adaptive for the malarial parasite as a means to ensure fertility. Alternatively they may simply be the consequence of a non-adaptive process forcing several parasites to compete for resources in one host cell. Avian hosts infected wi...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182005008711
更新日期:2006-01-01 00:00:00
abstract::The outcome of a parasite infection is the result of the interaction between the host and the parasite. In the system we studied, there are 3 critical stages for the outcome of infection of the (intermediate) host, the copepod Macrocyclops albidus, with the cestode Schistocephalus solidus. During the establishment pha...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182001001275
更新日期:2002-04-01 00:00:00
abstract::Many different drug-resistant lines of rodent malaria are available as screening models. It is obligatory to screen new compounds for antimalarial activity against a series of resistant lines in order to identify a compound with potential for the treatment of multi-drug resistant (MDR) malaria infections. Instead of u...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s003118200500778x
更新日期:2005-09-01 00:00:00
abstract::High levels of molecular diversity were identified in mitochondrial cytochrome c oxidase (cox1) gene sequences of Schistosoma turkestanicum from Hungary. These cox1 sequences were all specific to Hungary which contrasted with the low levels of diversity seen in the nuclear internal transcribed spacer region (ITS) sequ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182017000920
更新日期:2017-11-01 00:00:00
abstract::Freshwater snails of the Bulinus forskalii group are one of four Bulinus species complexes responsible for the transmission of schistosomes in Africa and adjacent regions. The species status of these conchologically variable and widely distributed planorbids remains unclear, and parasite compatibility varies considera...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182001008381
更新日期:2001-01-01 00:00:00
abstract::In this review, we envisage the host environment, not as a hostile one, since the schistosome thrives there, but as one in which the relationship between the two organisms consists of constant communication, through signalling mechanisms involving sense organs, surface glycocalyx, surface membrane and internal organs ...
journal_title:Parasitology
pub_type: 杂志文章,评审
doi:10.1017/S0031182007002971
更新日期:2007-10-01 00:00:00
abstract::The structure and development of microgametocytes pf Eimeria maxima from chicks killed during the 6th day of infection were examined using transmission and scanning electron microscopy. Initially, nucleoli disappear and the surface of the microgametocyte invaginates. This is followed by a condensation of the chromatin...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000041937
更新日期:1981-02-01 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
pub_type: 杂志文章
doi:10.1017/s0031182000051337
更新日期:1976-08-01 00:00:00
abstract::The development and growth of Haemonchus contortus was studied in the stomach of the laboratory rabbit. Less than 1% of the ensheathed infective larvae given to rabbits became established, whereas after exsheathment in vitro under physiological conditions, 20-30% of the larvae administered developed to the 4th stage. ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000047867
更新日期:1977-06-01 00:00:00
abstract::Ivermectin treatment may induce severe adverse reactions in some individuals heavily infected with Loa loa. This hampers the implementation of mass ivermectin treatment against onchocerciasis in areas where Onchocerca volvulus and L. loa are co-endemic. In order to identify factors, including co-infections, which may ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S003118200600984X
更新日期:2006-06-01 00:00:00