Abstract：
:The eggshells of young developmental stages in the uterus are rather thin and homogenous. In the brezel stage of Brugia malayi they are 35 nm thick and 20 nm in Litomosoides carinii. In young developmental stages up to brezel stages the eggshells bind the lectins WGA, DBA and PNA labelled with colloidal gold. This shows that GlcNAc, GalNAc and Gal residues are present at the surface of the sheath. In intrauterine microfilariae of B. malayi the original sheath is reduced to a thickness of 7 nm. It is reinforced by secretions from a specialized area of the epithelium of the uterus which do not appear as a homogeneous layer but look like a string of pearls. This layer may be called the "uterine layer". It has a thickness of 40-80 nm. In the microfilaria of L. carinii, the thickness of the original sheath is reduced to 2-3 nm and the uterine layer has a thickness of 7 nm. The uterine layer does not react with any of the lectins, which shows that the surface lacks N-acetylglucosamine, N-acetylgalactosamine and galactose residues. The uterine layer appears to be an ancestral (plesiomorphic) feature which is present in free-living nematodes and the highly specialized bloodforms of filariae. The uterine layer seems to protect and disguise the original sheath against the immune reactions of the host.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Schraermeyer U,Peters W,Zahner Hdoi
10.1007/BF00535333subject
Has Abstractpub_date
1987-01-01 00:00:00pages
557-64issue
6eissn
0932-0113issn
1432-1955journal_volume
73pub_type
杂志文章abstract：:Extracts were prepared from leaf, bark, and seed of Azadirachta indica, leaf and seed of Prunus persica, bark of Mangifera indica, and leaf of Psidium guajava and were evaluated against Boophilus microplus. Of the eight extracts screened, the extracts prepared from the A. indica seed showed very high level of efficacy...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-008-1173-3
更新日期：2008-12-01 00:00:00
abstract：:Intestinal coccidiosis of rabbits induced by E. coecicola causes enormous economic losses in rabbit farms. Here, we investigate the effect of E. coecicola on the liver of the rabbit Oryctolagus cuniculus. On day 7 p.i., fecal expulsion of E. coecicola oocysts is maximal and rabbits have lost approximately 25% of their...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2574-2
更新日期：2012-02-01 00:00:00
abstract：:The emergence of resistance against most of the drugs in current use against malaria has aggravated the disease burden in endemic regions. Several plants species have been used for treatment of malaria in traditional/cultural health systems. Bergenia ciliata, used traditionally for treatment of fever by local communit...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-013-3487-z
更新日期：2013-09-01 00:00:00
abstract：:Thelohania montirivulorum sp. nov., a new species of microsporidian parasite, was found in a highland population of the Australian yabby, Cherax destructor. Data are presented on fine ultrastructure, developmental morphology and DNA sequence of the small subunit ribosomal DNA (SSU rDNA) and internal transcribed spacer...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-003-0948-9
更新日期：2003-10-01 00:00:00
abstract：:Trichomonas vaginalis is a human urogenital pathogen that causes trichomoniasis, the most common nonviral parasitic sexually transmitted infection in the world. Presently, there are no reports on comparative sequence analysis as well as on the identification of phylogenetic positions of T. vaginalis isolates from the ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1635-2
更新日期：2009-12-01 00:00:00
abstract：:Histochemical investigations of Sarcocystis microcysts found in two hindleg muscles of cats were carried out. Genus identification was based on the reinforced cyst membrane structure and its dimensions, the structure of the sarcocysts, and an electron microscopic survey of bradyzoite characteristics. The cyst membrane...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00932712
更新日期：1988-01-01 00:00:00
abstract：:The uptake of amino acids is mediated by active transporters located on the basolateral and brush border membranes of intestinal epithelial cells. The current study investigated the expression of amino acid transporters (AAT) and other genes in the intestine of chicks infected with Eimeria maxima. At 7-day postinfecti...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-014-4114-3
更新日期：2014-10-01 00:00:00
abstract：:Blastocystis sp. is the most common eukaryotic parasite in the intestinal tract of humans. Due to its strong impact in public health, in this study, we determined the frequency of different Blastocystis subtypes in patients in France. We hypothesized on the mode of transmission and tested a possible relationship betwe...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1398-9
更新日期：2009-08-01 00:00:00
abstract：:In an effort to identify novel therapeutic alternatives for the treatment of malaria, the present study evaluated the antimalarial effect of the crude hydroalcoholic extract (HCE) from the leaves of Chenopodium ambrosioides L. For this purpose, the molecular affinity between the total proteins from erythrocytes infect...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-016-5216-x
更新日期：2016-11-01 00:00:00
abstract：:A molecular approach was used to analyse a focus of cercarial dermatitis in northeastern France (Lake Der-Chantecoq), including both cercariae and snails,by sequencing the internal transcribed spacers (ITS1 for ocellate furcocercariae and ITS2 for snails). Lymnaea stagnalis were found infected with the furcocercariae ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-004-1273-7
更新日期：2005-01-01 00:00:00
abstract：:The DNA content of the developmental stages within the life cycle of Babesia divergens was measured by means of fluorescence microscopy using the DNA-specific bisbenzimide Hoechst 33258. By comparing the mean relative fluorescence intensities, the assumption of sexual reproduction in the gut of the tick vector (Ixodes...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00930815
更新日期：1990-01-01 00:00:00
abstract：:A survey of the myxosporean fauna of Australian marine fishes revealed the presence of three previously unreported species of Unicapsula (Multivalvulida: Trilosporidae) from sites off Southeast Queensland, off Lizard Island on the Great Barrier Reef, Queensland, and from Jurien Bay in Western Australia. Morphometric d...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-013-3467-3
更新日期：2013-08-01 00:00:00
abstract：:Mosquito bites can elicit dermal hypersensitivity reactions, but little is known about the chemotactic factors for host leukocytes in mosquito saliva. In this study, we determined that saliva from a malarial vector mosquito, Anopheles stephensi, possesses intense neutrophil chemotactic activity. In contrast, the midgu...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360000355
更新日期：2001-05-01 00:00:00
abstract：:Free-living amoebae (FLA) are protozoa ubiquitously found in nature. As some species or strains of these FLA are pathogenic for humans and animals, they represent objects of medical and parasitological research worldwide. Storage of valuable FLA strains in laboratories is often time- and energy-consuming and expensive...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-6029-x
更新日期：2018-10-01 00:00:00
abstract：:Trypanosoma cruzi proteinases are very likely involved in host-cell invasion. Physiological plasma-proteinase inhibitors from the macroglobulin (MG) family, among them alpha-2-macroglobulin (A2M), are found in tissues and in the plasma of mammals. By complexing to all classes of proteinases, MGs inhibit their action o...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00931729
更新日期：1992-01-01 00:00:00
abstract：:We have identified the 2-Cys peroxiredoxin (Prx) from a bovine Babesia parasite, B. bovis. Prx is a recently described family of antioxidant enzymes that are highly conserved in eukaryotes and prokaryotes. B. bovis 2-Cys Prx (BbTPx-1) contained two conserved cysteine residues that corresponded to Cys47 and Cys170 of t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1587-6
更新日期：2009-10-01 00:00:00
abstract：:Hassalstrongylus epsilon is a small nematode, whose adult forms are found among the intestinal microvilli of the water rat Nectomys squamipes, Brants 1827 (Rodentia: Muridae). The external appearance of the cuticle, which presents transversal striations and longitudinal ridges, is described using scanning electron mic...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-003-0845-2
更新日期：2003-07-01 00:00:00
abstract：:Hepatozoon canis is a hemoprotozoan organism that infects domestic and wild carnivores throughout much of Europe. The parasite is mainly transmitted through the ingestion of infected ticks containing mature oocysts. The aims of the present survey were to determine the prevalence of H. canis in hunting dogs living in S...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-020-06820-2
更新日期：2020-09-01 00:00:00
abstract：:To mimic a human malaria infection in the endemic condition, two strains of mice (Balb/c and CBA) were infected and treated several times to generate so-called semi-immune status. As previously reported, neither mice (Balb/c and CBA) strain showed cerebral malaria, even in the susceptible C57BL/6 (B6). The significant...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-2121-6
更新日期：2011-04-01 00:00:00
abstract：:Within the present study, we offer new information on the morphology, histopathology, and 18S ribosomal DNA (rDNA) sequence of Myxobolus scardinii to supplement and revise the original description of Reuss (Bull Acad Imp Sci St-Pétersbourg, V Serie, XXV, No. 3: 199-205, 1906). M. scardinii was found infecting the gill...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4587-8
更新日期：2015-10-01 00:00:00
abstract：:Field and experimental bovine infection sera were used in immunoblots of sporozoite and schizont lysates of Theileria parva to identify candidate diagnostic antigens. Four parasite antigens of Mr 67,000 (p67), 85,000 (the polymorphic immunodominant molecule, PIM), 104,000 (p104), and 150,000 (p150) were selected for a...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050419
更新日期：1998-05-01 00:00:00
abstract：:Amphibian populations are declining around the world, and the main reasons are the environmental changes and pathogens. However, there are few studies addressing the interaction and impact of the different pathogens that affect amphibians, such as hemoparasites. These parasites had been described as common in some amp...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-020-06689-1
更新日期：2020-06-01 00:00:00
abstract：:Myiasis refers to the infestation of living humans and vertebrates with fly larvae that feed on necrotic or vital tissue of the host. Since the invasion of new fly species in Europe is currently being observed, which live obligatorily parasitically or are close relatives of such species, the aim of this study is to ob...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-6145-7
更新日期：2019-02-01 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：:Whole sequencing of protozoan trypanosomatid genomes revealed the presence of several predicted unknown genes coding for hypothetical proteins. Pairwise, alignment-based, computational methods available online are unable to identify the function of these sequences. To detect clues to identify the function of hypotheti...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-005-0064-0
更新日期：2006-03-01 00:00:00
abstract：:Taenia species of domestic dogs can cause cysticercosis and coenurosis in a wide range of intermediate hosts including humans. Most taeniids of dogs are globally distributed, but some wildlife-transmitted species can be specific for certain regions. Generally, little information exists on the species composition and f...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-020-06793-2
更新日期：2020-09-01 00:00:00
abstract：:Spirometra erinacei is a pseudophyllidean tapeworm which inhabits the intestines of cats and dogs. The infections are usually asymptomatic in these animals, but the infection of the plerocercoid larvae of the parasite, spargana, cause sparganosis in other vertebrates, including human. In this study, we identified a ge...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1714-4
更新日期：2010-02-01 00:00:00
abstract：:The complete internal transcribed spacer 1 (ITS1), 5.8S rDNA, and ITS2 region of the ribosomal DNA and a 390-bp region of the 16S rDNA gene from five taxa belonging to Rhinonyssus (Rhinonyssus vanellus, Rhinonyssus tringae, Rhinonyssus neglectus, Rhinonyssus echinipes from Kentish plover, and Rhinonyssus echinipes fro...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-006-0356-z
更新日期：2007-04-01 00:00:00
abstract：:The morphology and ecology are described for four sibling species of digenean metacercariae: Meiogymnophallus minutus (Cobbold 1859), M. strigatus (Lebour 1908) from the estuarine cockle Cerastoderma edule L. and M. fossarum (Bartoli, 1965) and M. rebecqui (Bartoli, 1983) comb. nov. from the brackish water lagoon cock...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050153
更新日期：1996-01-01 00:00:00
abstract：:During investigations of fish parasites in the Neotropics (including the state of Veracruz and the Yucatán Peninsula in the Gulf of Mexico, the Chautengo Lagoon on the Pacific coast of the state of Guerrero in Mexico, and Lake Gatun in the Panama Canal), three monogenoidean (Dactylogyridae) species were found parasiti...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1442-9
更新日期：2009-09-01 00:00:00
