Abstract：
:The Leishmania amazonensis telomerase gene was cloned by a polymerase chain reaction-based strategy using primers designed from a Leishmania major sequence that shared similarities with conserved telomerase motifs. The genes from three other species were cloned for comparative purposes. A ClustalW multiple-sequence alignment demonstrated that the Leishmania telomerases show greater homology with each other than with the proteins of other kinetoplastids and eukaryotes. Characterization experiments indicated that the putative Leishmania telomerase gene was probably in single copy and located in the largest chromosomes. A single messenger ribonucleic acid transcript was found in promastigotes. Phylogenetic analysis suggested that Leishmania telomerase might represent a liaison between the oldest and the newest branches of telomerases.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Giardini MA,Lira CB,Conte FF,Camillo LR,de Siqueira Neto JL,Ramos CH,Cano MIdoi
10.1007/s00436-005-0036-4subject
Has Abstractpub_date
2006-04-01 00:00:00pages
447-54issue
5eissn
0932-0113issn
1432-1955journal_volume
98pub_type
杂志文章abstract：:Echinostoma trivolvis adults grown in golden hamsters were treated in vitro with [3H]-tyrosine to label sperm and transplanted to uninfected hamsters alone or with four to six unlabeled adults. After 4-5 days, worms were recovered, processed for autoradiography, and observed for silver grains over their seminal recept...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00932258
更新日期：1993-01-01 00:00:00
abstract：:Rodents have been widely studied as intermediate hosts of Sarcocystis; however, only a few reports on these parasites in the black rat (Rattus rattus) are known. Having examined 13 black rats captured in Latvia, sarcocysts were found in skeletal muscles of two mammals and were described as Sarcocystis ratti n. sp. Und...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-019-06393-9
更新日期：2019-09-01 00:00:00
abstract：:The leaf extract of Acalypha alnifolia with different solvents - hexane, chloroform, ethyl acetate, acetone and methanol - were tested for larvicidal activity against three important mosquitoes such as malarial vector, Anopheles stephensi, dengue vector, Aedes aegypti and Bancroftian filariasis vector, Culex quinquefa...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2525-y
更新日期：2012-02-01 00:00:00
abstract：:In Romania, cystic echinococcosis is endemic and affects, besides humans, various animal species including sheep, cattle, and swine. As yet, no molecular-genetic typing has been carried out to clearly identify the putative strains being transmitted there. Parasite samples (protoscoleces or germinal layers) were collec...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-005-0015-9
更新日期：2006-01-01 00:00:00
abstract：:Spermiogenesis and the ultrastructure of the spermatozoon of the bothriocephalidean cestode Clestobothrium crassiceps (Rudolphi, 1819), a parasite of the teleost fish Merluccius merluccius (Linnaeus, 1758), have been studied by means of transmission electron microscopy. Spermiogenesis involves firstly the formation of...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2446-9
更新日期：2012-01-01 00:00:00
abstract：:Leishmaniasis is a geographically widespread disease caused by protozoan parasites belonging to the genus Leishmania and transmitted by certain species of sand fly. This disease still remains endemic in China, especially in the west and northwest frontier regions. A recent ITS1 phylogeny of Chinese Leishmania isolates...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-2239-6
更新日期：2011-07-01 00:00:00
abstract：:Chagas disease, caused by the protozoan Trypanosoma cruzi, is considered to be a multifactorial disease associated with host and parasite genetics, which influence clinical aspects of the disease and other host conditions. In order to understand better the evolution of the disease, this study intended to evaluation of...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-018-5969-5
更新日期：2018-09-01 00:00:00
abstract：:Mosquito foraging behavior is a determinant of host-vector contact and has an impact on the risk of arboviral epidemics. Therefore, blood-feeding patterns is a useful tool for assessing the role in pathogen transmission by vector mosquitoes. Competent vectors of dengue and chikungunya viz. Aedes aegypti and Aedes albo...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-015-4634-5
更新日期：2015-09-01 00:00:00
abstract：:The authors previously reported that an extract from Zingiber officinale, traditionally eaten along with raw fish and used in traditional Chinese medicine, effectively destroyed Anisakis larvae in vitro. In this study, we analyzed the effective components of ginger rhizomes. Methanol extracts were fractionated after f...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00931082
更新日期：1990-01-01 00:00:00
abstract：:The phylogenetic placement of gregarine parasites (Apicomplexa: Gregarinasina) within the Apicomplexa was derived by comparison of small-subunit ribosomal RNA gene sequences. Gregarine sequences were obtained from Gregarina niphandrodes Clopton, Percival, and Janovy, 1991, and Monocystis agilis Stein, 1848 (Eugregarin...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050655
更新日期：1999-11-01 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：:We examined four species of Plectropomus Oken, 1817 (Serranidae: Epinephelinae), Plectropomus areolatus (Rüppell), Plectropomus laevis (Lacepède), Plectropomus leopardus (Lacepède) and Plectropomus maculatus (Bloch) from sites off Heron Island and Lizard Island on the Great Barrier Reef, Australia (GBR), and the Gambi...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-013-3423-2
更新日期：2013-07-01 00:00:00
abstract：:In the present study, the morphology and morphometric characterization of Dujardinnascaris mujibii (Heterocheilidae) and Hysterothylacium aduncum (Anisakidae), new nematode parasites infecting the sea bream Pagrus pagrus (Osteichthyes, Sparidae), were described for the first time from the Gulf of Suez and Hurghada Cit...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-012-3270-6
更新日期：2013-02-01 00:00:00
abstract：:Infection with helminth parasites or the administration of their antigens can prevent or attenuate autoimmune diseases. To date, the specific molecules that prime the amelioration are only limited. In this study, recombinant Schistosoma japonicum cystatin (rSjcystatin) and fructose-1,6-bisphosphate aldolase (rSjFBPA) ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-019-06511-7
更新日期：2020-01-01 00:00:00
abstract：:The activities of the disaccharidases lactase, maltase, sucrase and trehalase were examined in gerbils during Giardia lamblia infections. In a primary infection with trophozoites, the activities of all four enzymes were reduced from day 10 post-infection (p.i.) and remained at low levels well past the elimination phas...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00932025
更新日期：1995-01-01 00:00:00
abstract：:In the present article, we report on the identification of Vermamoeba (Hartmannella) vermiformis as the etiological agent of a tissue infection close to the eye of a female patient. Laboratory examination revealed no involvement of any pathogenic bacteria or fungi in the tissue infection. V. vermiformis was identified...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-019-06312-y
更新日期：2019-06-01 00:00:00
abstract：:The objectives of this study were to evaluate the occurrence of Leishmania infantum in the male and female genital tract and female mammary glands of dogs and the parasite burden and to identify histological alterations associated with this protozoan. Twenty male and 20 female Leishmania-seropositive dogs with isolati...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-016-4987-4
更新日期：2016-06-01 00:00:00
abstract：:Parasites from Flensburg fjord, northern German Baltic coast, were investigated under regard of the component, guild, and supra community level. At least, 28 host species of the guilds snails, planktonic and benthic crustaceans, and fish (exclusively small-sized species) were infected by 53 parasite species (28 autoge...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-008-1218-7
更新日期：2009-01-01 00:00:00
abstract：:Representatives of Apicomplexa perform various kinds of movements that are linked to the different stages of their life cycle. Ancestral apicomplexan lineages, including gregarines, represent organisms suitable for research into the evolution and diversification of motility within the group. The vermiform trophozoites...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-019-06381-z
更新日期：2019-09-01 00:00:00
abstract：:Immunocytochemical studies using antibodies against various peptides were performed on Echinostoma caproni. Only the presence of substance P or a related peptide was clearly demonstrated in this digenetic trematode. In the central nervous system, substance P-immunoreactive neurons were few and constituted two populati...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00930963
更新日期：1989-01-01 00:00:00
abstract：:Dermanyssus gallinae (Acari: Mesostigmata) is the most important hematophagous ectoparasite in layer farms in many countries. The reproduction rate of the parasite is rapid and can be completed in a week under favorable conditions. The parasite has direct and indirect effects on birds. It can also act as a vector for ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-014-3759-2
更新日期：2014-03-01 00:00:00
abstract：:An inexpensive and simple method using acid-phenol was developed for the isolation of total RNA from eimerian oocysts. This procedure provides a pure preparation of undegraded RNA in high yield and can be completed in under 2 h. ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050446
更新日期：1998-07-01 00:00:00
abstract：:In the present study, we have tested the effect of different polyamine inhibitors of the spermidine metabolizing enzymes deoxyhypusine synthase and homospermidine synthase in different chloroquine resistant Plasmodium falciparum strains, in the mosquito Anopheles stephensi (Diptera: Culicidae) and in a Trypanosoma eva...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-004-1162-0
更新日期：2004-09-01 00:00:00
abstract：:The time-course of the detection of circulating and urinary filarial antigens was followed with a 2S-IRMA assay, using a mouse monoclonal antibody raised against Brugia malayi larvae, in Mastomys natalensis experimentally infected with Brugia malayi, Brugia pahangi, or Litomosoides carinii. In the prepatent phase of t...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00536033
更新日期：1987-01-01 00:00:00
abstract：:Intestinal parasites are the causative agents of common infections responsible for significant public health problems in developing countries and generally linked to lack of sanitation, safe water, and improper hygiene. More than two billion people throughout the world live with unrelenting illness due to intestinal p...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-1861-7
更新日期：2010-07-01 00:00:00
abstract：:The purpose of the present study was to investigate the acaricidal and larvicidal activity against the larvae of Haemaphysalis bispinosa Neumann (Acarina: Ixodidae) and larvae of hematophagous fly Hippobosca maculata Leach (Diptera: Hippoboscidae) and against the fourth-instar larvae of malaria vector, Anopheles steph...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2473-6
更新日期：2012-08-01 00:00:00
abstract：:The recombinant surface protein of Theileria annulata (TaSP) was used in the standardization and validation of an enzyme linked immunosorbent assay (ELISA) for the detection of circulating antibodies against tropical theileriosis. ELISA data were expressed as the percentage positivity (PP) of the reactivity of an inte...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-003-1055-7
更新日期：2004-03-01 00:00:00
abstract：:Three actinosporean types--raabeia, aurantiactinomyxon, and guyenotia--from the oligochaete Branchiura sowerbyi Beddard collected from a crucian carp (Carassius auratus gibelio) pond are described in this report. Compared with the actinospores described previously, the raabeia type presents similar spore shape with th...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-013-3306-6
更新日期：2013-04-01 00:00:00
abstract：:Some cyclophyllidean cestodes provide protection for their eggs in the external environment by providing them with additional protective layers around the egg membranes. In attempting to examine such adaptations, the microanatomy and fine structure of the uterus of pregravid and gravid proglottids of the cyclophyllide...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-016-4997-2
更新日期：2016-06-01 00:00:00
abstract：:The round goby Neogobius melanostomus is a bottom-dwelling fish native for the Ponto-Caspian basin, which started to colonize the Baltic Sea since 1991. The parasites of this fish species in the southwestern Baltic region are studied for the first time. The round goby in the SW Baltic Sea was infected with 12 parasite...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-011-2321-8
更新日期：2011-09-01 00:00:00
