Abstract：
:This experimental study on pigs was designed to simulate natural, long-term exposure to Ascaris suum under modern management conditions. Parasite kinetics were followed in pigs receiving A. suum eggs as repeated trickle inoculations at two dose levels beginning at a body weight of 25 kg until their slaughter at 90 kg (baconers). In pigs inoculated twice weekly with 500 eggs, there was an initial marked rise in the numbers of hepatic milk spots, but as early as around week 6 after the start of inoculations and until week 16, at which time the last pigs were slaughtered, the numbers of spots diminished drastically. In pigs receiving only 25 eggs twice weekly, low and moderately fluctuating numbers of spots were seen throughout the experiment. Larvae recoverable from the livers and lungs were observed mainly during the beginning of the experiment. Before patency, immature intestinal worms were found in moderate numbers that showed a rough positive correlation with the dose levels, but at the time at which adult worms started to appear, immature parasites could practically no longer be found. In all, only 10 of 40 pigs harbored adults, and 4 of these 10 pigs harbored 80% of the total worm population. The results show that acquired dose-dependent host responses to A. suum play an important role in regulating the worm population along the migratory route of the parasite and that the final burden of worms in the small intestine is dose-dependent and highly variable.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Eriksen L,Nansen P,Roepstorff A,Lind P,Nilsson Odoi
10.1007/BF00931733subject
Has Abstractpub_date
1992-01-01 00:00:00pages
241-6issue
3eissn
0932-0113issn
1432-1955journal_volume
78pub_type
杂志文章abstract：:The invasive fish tapeworm, Khawia japonensis (Yamaguti, 1934) originally described in Japan, is reported for the first time in Slovakia. The tapeworm was found in farmed common carp (Cyprinus carpio L.) from East-Slovakian breeding fish pond. This finding is registered 4 years after the first announcement of this par...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4447-6
更新日期：2015-05-01 00:00:00
abstract：:The aim of the study was to diagnose Sarcocystis sp. infections in cattle and to detect coinfections by Toxoplasma gondii and/or Neospora caninum. Blood, diaphragm, esophagus, and myocardium from 90 beef cattle from Argentina were collected. Histopathological, immunohistochemical, polymerase chain reaction assays, and...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0810-6
更新日期：2008-03-01 00:00:00
abstract：:This study presents the ultrastructural characteristics of sporogenesis in the genus Myxobolus which infects four economically important Egyptian fishes: Oreochromis niloticus niloticus, Barbus bynni, Labeo niloticus and Hydrocynus forskalii, specimens of which were collected at Giza city. Although the cysts were obse...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-004-1250-1
更新日期：2005-02-01 00:00:00
abstract：:Trichomoniasis is the interplay between the infecting parasite, Trichomonas vaginalis, and the host, on which the clinical presentation of the disease depends. Although the clinical spectrum varies from an asymptomatic state to mild, moderate or severe symptoms, the exact virulence markers of T. vaginalis have not bee...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-004-1155-z
更新日期：2004-09-01 00:00:00
abstract：:The utility of an enzyme-linked immunosorbent assay to determine the sensitization against the trematode Fasciola hepatica in horses from an endemic area (NW Spain) was assessed. Blood samples were collected from 536 horses and tested against a 2.9-kDa recombinant surface protein (FhrAPS) to estimate the presence of I...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2587-x
更新日期：2012-02-01 00:00:00
abstract：:Interferon-tau (IFN-tau) treatment of Trichinella spiralis-infected BALB/c mice was investigated. The therapeutic regimen consisted of daily intraperitoneal injection of 10(4) U murine IFN-tau for 7 days, starting at 2 weeks post-infection. Striated muscle samples (diaphragm, thigh) were collected at 4, 8 and 12 weeks...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00931641
更新日期：1991-01-01 00:00:00
abstract：:Availability of mites is a recognized limiting factor of biological and genetic investigations of the genus Sarcoptes. Current methods of deoxyribonucleic acid (DNA) extraction from individual mites also need substantial improvement in efficiency and operator friendliness. We have first developed a technique for effic...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1580-0
更新日期：2009-10-01 00:00:00
abstract：:Northern elephant seals (Mirounga angustirostris Gill, 1866), inhabiting rookeries on the mainland of Año Nuevo State Reserve in central California, were investigated in 2012 for presence of hookworms (Uncinaria spp.). Material collected and examined for hookworms included: blubber (n = 15), stomach and intestines (n ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-012-2919-5
更新日期：2012-10-01 00:00:00
abstract：:The impact of parasites on host population dynamics depends on local abundance of the parasites, which may vary considerably across spatial scales. In sand hopper populations, mermithid parasites have major impacts on host dynamics, which may vary among spatially separated populations due to the sand hopper's wide, pa...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-014-4254-5
更新日期：2015-03-01 00:00:00
abstract：:The tick Rhipicephalus microplus affects cattle health, with production loss in tropical and subtropical regions. Moreover, the use of commercial acaricides has been reduced due to the resistance of this parasite. Although alternatives such as plant bioactive molecules have been sought, essential oils present variatio...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-017-5662-0
更新日期：2018-01-01 00:00:00
abstract：:The experimental transmission of a recently identified new Theileria (China 1) species pathogenic for sheep and goats in northern China is described. Haemaphysalis qinghaiensis nymphs and adults developed from larvae and nymph engorged on sheep infected with Theileria sp. (China 1) were able to respectively transmit t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-007-0509-8
更新日期：2007-08-01 00:00:00
abstract：:With the aim of proposing an alternative model to animal experimentation, we investigated cytokine production in response to antigens in an in vitro system. This is a co-culture system of healthy human leukocytes and enterocyte-like Caco-2 cells. The antigens tested, EgA31, EgTrp, and FABP1, are candidates for vaccine...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-004-1075-y
更新日期：2004-04-01 00:00:00
abstract：:Rodents are intermediate hosts for many species of Sarcocystis. Little is known of Sarcocystis cymruensis that uses the Brown rat (Rattus norvegicus) as intermediate hosts and the domestic cat (Felis catus) as experimental definitive host. Here, we identified and described Sarcocystis cymruensis in naturally infected ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5799-5
更新日期：2018-04-01 00:00:00
abstract：:Paramyosin is a muscle protein that probably plays a role in the survival of the larval stage of Taenia solium during its prolonged host-parasite relationship. Here we describe the structure of the gene coding for the paramyosin of T. solium. The characterization of two clones obtained from a genomic library showed th...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-002-0761-x
更新日期：2003-03-01 00:00:00
abstract：:Haplosporidian spores from Ostrea edulis, previously described as Minchinia armoricana, were reexamined by light and electron microscopy. These spores were either free among host cells or enclosed in sporocysts. They contained two long epispore cytoplasm extensions (ECE), each possessing cytoskeletal structures corres...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050669
更新日期：1999-12-01 00:00:00
abstract：:Amastigotes of Leishmania species belonging to the Leishmania mexicana complex exhibit large lysosomes, called megasomes, which are rich in cysteine proteinases. Various aspects of the host-parasite interaction, the differentiation process as well as intracellular survival, have been attributed to these proteinases. T...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-001-0516-0
更新日期：2002-04-01 00:00:00
abstract：:With this case report, we describe Trombiculidae larvae (Neotrombicula autumnalis) infestation in a Little Bittern (Ixobrychus minutus) which was brought to our clinics by the Directorship of Environmental and Forestry authorities of Samsun, Turkey in April, 2007. The male Little Bittern (I. minutus), with a black bac...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-008-0898-3
更新日期：2008-04-01 00:00:00
abstract：:Aedes aegypti and Ae. albopictus are key vectors in the spread of arboviruses such as dengue, chikungunya, yellow fever, and Zika. Triatoma rubrofasciata is an "assassin bug" whose populations and association with humans have dramatically increased and may represent a serious health concern. Control of insect vectors ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-019-06212-1
更新日期：2019-03-01 00:00:00
abstract：:This study aims to observe the histopathological alterations in schistosomula of Schistosoma japonicum induced by mefloquine. Mice were infected with S. japonicum cercariae, and after 14 days, a single dose of mefloquine (400 mg/kg) was administered orally. After 8 h, 24 h, 3 days, 7 days, and 14 days, groups of two t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1611-x
更新日期：2009-11-01 00:00:00
abstract：:The overall risk for toxoplasmosis in meat produced in Colombia is unknown. We analyzed by PCR assay meat samples for human consumption in two types of plants in Colombia: 120 samples from class I plants (60 samples from chicken, 30 from swine and 30 from beef) and 60 from class II plants (30 samples from beef and 30 ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4790-7
更新日期：2016-02-01 00:00:00
abstract：:We have investigated how knowledge of endoplasmic reticulum (ER) retrieval signals can be used to study specific trafficking pathways in the malaria-infected erythrocyte. We show that addition of various lumenal ER retrieval signals to soluble green fluorescent protein (GFP) chimaera causes retrieval of the fusion pro...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1397-x
更新日期：2009-06-01 00:00:00
abstract：:Anopheles beklemishevi specimens from Russia were analysed by their ITS2 ribosomal DNA sequence to amend and to specify the phylogenetic tree of the Anopheles maculipennis species complex. Surprisingly, with 638 base pairs, the ITS2 regions of all the 34 An beklemishevi specimens examined were considerably longer than...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-005-1393-8
更新日期：2005-09-01 00:00:00
abstract：:The giant thorny-headed worm Macracanthorhynchus hirudinaceus is a zoonotic acanthocephalan species with a worldwide distribution. Its natural definitive hosts are primarily pigs and wild boars (Sus scrofa), and scarabaeid beetles serve as the intermediate host. To date, there has only been one record of this acanthoc...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5922-7
更新日期：2018-07-01 00:00:00
abstract：:The taxonomic status of the two known strains of Schistosoma intercalatum, the Lower Guinea strain (originating from Edea, Cameroon) and the Zaire strain (originating from Kinshasa, Democratic Republic of Congo, formerly Zaire) was examined using random amplified polymorphic DNA (RAPD) markers. Two additional species ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360000301
更新日期：2001-01-01 00:00:00
abstract：:The following effects of Lactobacillus casei in NIH mice were evaluated: the establishment of Trichinella spiralis adult worms in the intestine (AWI), larvae per gram of muscle tissue (LPG), levels of IgG and IgA, and levels of IL-4 and IFN-γ. One hundred and eight mice were allocated at random into 18 groups of six m...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2432-2
更新日期：2011-12-01 00:00:00
abstract：:We have previously reported the involvement of cyclic AMP in regulating flagellar waveforms in Leishmania. Here, we investigated the roles of calcium, calmodulin, and calcineurin in flagellar motility regulation in L. donovani. Using high-speed videomicroscopy, we show that calcium-independent calmodulin and calcineur...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-017-5608-6
更新日期：2017-11-01 00:00:00
abstract：:Neurocysticercosis (NC) is one of the most important diseases caused by parasites affecting the central nervous system. We fractionated by ion-exchange chromatography using diethylaminoethyl (DEAE)-sepharose resin the total saline extract (S) from Taenia solium metacestodes and evaluated obtained fractions (DEAE S1 an...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-014-3908-7
更新日期：2014-07-01 00:00:00
abstract：:Synoptic data and an understanding of helminth parasite diversity among diverse rodent assemblages across temperate latitudes of North America remain remarkably incomplete. Renewed attention to comprehensive survey and inventory to establish the structure of biodiverse faunas is essential in providing indicators and p...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-016-5255-3
更新日期：2016-12-01 00:00:00
abstract：:cDNA clones for homologues of a molecular chaperone of the endoplasmic reticulum called the immunoglobulin heavy-chain binding protein (BiP) have been isolated from Eimeria maxima and E. tenella sporozoite cDNA libraries. The E. tenella cDNA clone is of full length and has a predicted N-terminal signal sequence of app...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050163
更新日期：1996-01-01 00:00:00
abstract：:The blowfly Lucilia sericata (Diptera: Calliphoridae) is a facultative ectoparasite that causes myiasis in both man and animals, leading to serious human health problems and economic losses in the livestock industry. Like other insects, olfaction of this species plays an important role in host location and is presumab...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2563-5
更新日期：2012-02-01 00:00:00
