Physical and transcriptional organization of the ribosomal RNA genes of the savannah-type Trypanosoma congolense.

Abstract:

:Ribosomal RNA genes have been cloned from the major species of African trypanosomes. Complete nucleotide sequence composition of the small subunit (SSU) and portions of the large subunit (LSU) ribosomal RNA genes was determined for each of these trypanosome species. In contrast to the situation in Trypanosoma brucei, in savannah-type T. congolense the LSU ribosomal RNA is cleaved twice, to generate two additional prominent fragments. This leads to the different profiles observed when the rRNA molecules from these two trypanosome species are resolved in agarose gels. From the nucleotide sequences of the 18S RNA, a phylogenetic tree was derived depicting the relationships among the T. congolense complex of trypanosomes and the other species of trypanosomes.

journal_name

Parasitol Res

journal_title

Parasitology research

authors

Urakawa T,Majiwa PA

doi

10.1007/s004360100383

subject

Has Abstract

pub_date

2001-06-01 00:00:00

pages

431-8

issue

6

eissn

0932-0113

issn

1432-1955

journal_volume

87

pub_type

杂志文章
  • Transcription status of vaccine candidate genes of Plasmodium falciparum during the hepatic phase of its life cycle.

    abstract::The CSP, EMP2/MESA, MSP2, MSP3, MSP5, RAP1, RAP2, RESA1, SERA1 and SSP2/TRAP genes of Plasmodium falciparum are vaccine candidates. The hepatic phase of the infection is of major interest due to the protection induced by immunization with radiation-attenuated sporozoites. We therefore performed RT-PCR experiments to d...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-003-1061-9

    authors: Bodescot M,Silvie O,Siau A,Refour P,Pino P,Franetich JF,Hannoun L,Sauerwein R,Mazier D

    更新日期:2004-04-01 00:00:00

  • Occurrence of Leishmania infantum and associated histological alterations in the genital tract and mammary glands of naturally infected dogs.

    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

    authors: Boechat VC,Mendes Junior AA,Madeira Mde F,Ferreira LC,Figueiredo FB,Rodrigues Fd,Oliveira Vda C,de Oliveira Rde V,Menezes RC

    更新日期:2016-06-01 00:00:00

  • Trypanosoma cruzi-secreted vesicles have acid and alkaline phosphatase activities capable of increasing parasite adhesion and infection.

    abstract::Trypanosoma cruzi virulence factors include molecules expressed on the cell surface as well as those secreted or shed into the extracellular medium. Phosphatase activities modulate different aspects of T. cruzi infection, although no studies to date addressed the presence and activity of phosphatases in vesicles secre...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-014-3958-x

    authors: Neves RF,Fernandes AC,Meyer-Fernandes JR,Souto-Padrón T

    更新日期:2014-08-01 00:00:00

  • Synergistic effect of silencing the expression of tick protective antigens 4D8 and Rs86 in Rhipicephalus sanguineus by RNA interference.

    abstract::Tick proteins have been shown to be useful for the development of vaccines which reduce tick infestations. Potential tick protective antigens have been identified and characterized, in part, by use of RNA interference (RNAi). RNAi allows for analysis of gene function by characterizing the impact of loss of gene expres...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-006-0132-0

    authors: de la Fuente J,Almazán C,Naranjo V,Blouin EF,Kocan KM

    更新日期:2006-07-01 00:00:00

  • Immunomodulation of liver injury by Ascaris suum extract in an experimental model of autoimmune hepatitis.

    abstract::Adult worm extract from Ascaris suum (Asc) has immunosuppressive activity and elicits Th2/IL-4/IL-10 response. This study evaluated the prophylactic and therapeutic effect of Asc in a murine model of concanavalin A (ConA)-induced autoimmune hepatitis (AIH). BALB/c mice received ConA, iv, (20 mg/kg), and three groups o...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-014-3994-6

    authors: Nascimento WC,Silva RP,Fernandes ES,Silva MC,Holanda GC,Santos PA,Albuquerque MP,Costa VA,Pontes-Filho NT,Souza VO

    更新日期:2014-09-01 00:00:00

  • Seroprevalence of and risk factors for Toxoplasma gondii antibodies among asymptomatic blood donors in Egypt.

    abstract::A cross-sectional study was conducted to evaluate the seroprevalence of and risk factors for Toxoplasma gondii antibodies in 260 blood donors seen at blood banks in Mansoura University Hospital, Egypt. Blood donors were interviewed about sociodemographic characteristics and risk factors for T. gondii infection. A bloo...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-009-1350-z

    authors: Elsheikha HM,Azab MS,Abousamra NK,Rahbar MH,Elghannam DM,Raafat D

    更新日期:2009-06-01 00:00:00

  • Occurrence of Anisakis and Hysterothylacium larvae in commercial fish from Balearic Sea (Western Mediterranean Sea).

    abstract::This study investigates the occurrence of anisakids and raphidascarids in commercial fish from Balearic Sea (Western Mediterranean). A total of 335 fish including 19 black anglerfish (Lophius budegassa), 33 white anglerfish (L. piscatorius), 129 European hake (Merluccius merluccius), 30 red mullet (Mullus barbatus), a...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-018-6110-5

    authors: Barcala E,Ramilo A,Ortega N,Picó G,Abollo E,Pascual S,Muñoz P

    更新日期:2018-12-01 00:00:00

  • Flow cytometry analysis of drug transport mechanisms in Haemonchus contortus susceptible or resistant to anthelmintics.

    abstract::The role of membrane drug-transport mechanisms in resistance to anthelmintics was examined using a flow cytometry method. This method was adapted from assays developed for the study of similar mechanisms in tumor cells. Rhodamine 123, a P-glycoprotein transport probe, associated with the reversal agent verapamil gave ...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s004360050519

    authors: Kerboeuf D,Chambrier P,Le Vern Y,Aycardi J

    更新日期:1999-02-01 00:00:00

  • Cryptosporidium infection in herds with and without calf diarrhoeal problems.

    abstract::A case-control study was designed to investigate the role of different Cryptosporidium spp. in Swedish dairy herds with and without calf diarrhoeal problems. Faecal samples were collected from preweaned calves, young stock and cows. Cryptosporidium oocysts were detected by sodium chloride flotation and epifluorescence...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-010-2020-x

    authors: Silverlås C,de Verdier K,Emanuelson U,Mattsson JG,Björkman C

    更新日期:2010-11-01 00:00:00

  • Evaluation of boric acid sugar baits against Aedes albopictus (Diptera: Culicidae) in tropical environments.

    abstract::Attractive toxic sugar bait (active ingredient, 1% boric acid) was evaluated against Aedes albopictus Skuse populations in the laboratory, semi-field trials, and field trials in residential communities in St. Augustine, Florida. Laboratory evaluations of boric acid sugar baits applied to the plant Pentas lanceolata (R...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-013-3312-8

    authors: Naranjo DP,Qualls WA,Müller GC,Samson DM,Roque D,Alimi T,Arheart K,Beier JC,Xue RD

    更新日期:2013-04-01 00:00:00

  • Free-living amoebae and their associated bacteria in Austrian cooling towers: a 1-year routine screening.

    abstract::Free-living amoebae (FLA) are widely spread in the environment and known to cause rare but often serious infections. Besides this, FLA may serve as vehicles for bacterial pathogens. In particular, Legionella pneumophila is known to replicate within FLA thereby also gaining enhanced infectivity. Cooling towers have bee...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-016-5097-z

    authors: Scheikl U,Tsao HF,Horn M,Indra A,Walochnik J

    更新日期:2016-09-01 00:00:00

  • Real-time PCR for quantifying Haemonchus contortus eggs and potential limiting factors.

    abstract::The purpose of this study was to evaluate the practicality of using real-time PCR for quantifying feces-derived trichostrongyle eggs. Haemonchus contortus eggs were used to evaluate fecal contaminants, time after egg embryonation, and the presence of competing and non-competing DNAs as factors that might interfere wit...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-006-0428-0

    authors: Harmon AF,Williams ZB,Zarlenga DS,Hildreth MB

    更新日期:2007-06-01 00:00:00

  • Susceptibility of dyskinetoplastic Trypanosoma evansi and T. equiperdum to isometamidium chloride.

    abstract::Isometamidium chloride (ISM) is an effective trypanocide with curative and prophylactive activity in husbandry animals. The mode of action of ISM against pathogenic trypanosomes is not fully understood, but there is evidence in the literature that kinetoplastic topoisomerase type II is selectively inhibited by the dru...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s004360050346

    authors: Kaminsky R,Schmid C,Lun ZR

    更新日期:1997-01-01 00:00:00

  • Fasciola hepatica: the effect of the sodium ionophore monensin on the adult tegument.

    abstract::The effect on the tegument of adult Fasciola hepatica of incubation in the sodium ionophore monensin, the Na+/K+-ATPase inhibitor ouabain and ouabain pretreatment followed by monensin has been determined in vitro by scanning and transmission electron microscopy (SEM, TEM). With monensin incubation alone (1 x 10(-6) M)...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/BF00931280

    authors: Skuce PJ,Fairweather I

    更新日期:1989-01-01 00:00:00

  • Short communication on regional climate change scenarios and their possible use for impact studies on vector-borne diseases.

    abstract::Atmospheric observations demonstrate that, during the last decades, the climate has changed. As reported by the Intergovernmental Panel on Climate Change (IPCC, 2001, 2007), a mean increase of temperature by 0.09 K per decade was observed globally from 1951 to 1989. Up to now, 2008, this trend has continued. Europe ex...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-008-1099-9

    authors: Jacob D

    更新日期:2008-12-01 00:00:00

  • Molecular characterization of Trichomonas vaginalis isolates from the Philippines.

    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

    authors: Rivera WL,Ong VA,Masalunga MC

    更新日期:2009-12-01 00:00:00

  • Detection of putative secreted proteins in the plant-parasitic nematode Heterodera schachtii.

    abstract::The beet cyst nematode Heterodera schachtii is an important pathogen worldwide, but its molecular characterization has been limited to studying individual genes of interest. We undertook a high-throughput genomic approach and drastically increased the number of available sequences for this parasite. A total of 2,662 e...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-005-0029-3

    authors: Vanholme B,Mitreva M,Van Criekinge W,Logghe M,Bird D,McCarter JP,Gheysen G

    更新日期:2006-04-01 00:00:00

  • Contribution of Blastocystishominis subtypes and associated inflammatory factors in development of irritable bowel syndrome.

    abstract::Blastocystis hominis with worldwide distribution is a human intestinal protozoa found in all countries. There have been differences in the severity of the pathogenesis of various Blastocystis spp. and a concomitant variation in the plasma concentration of the cytokines in patients with irritable bowel syndrome. In the...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-016-4942-4

    authors: Azizian M,Basati G,Abangah G,Mahmoudi MR,Mirzaei A

    更新日期:2016-05-01 00:00:00

  • Symbiotic bacteria in oocyte and ovarian cell mitochondria of the tick Ixodes ricinus: biology and phylogenetic position.

    abstract::Under natural conditions, eukaryote cells may contain bacteria. Arthropods such as ticks, insects or mites are a group particularly favoured by the obligate intracellular bacteria. While arthropods are vectors for some of them, other bacteria inhabit invertebrate host cells having entered mutualistic interactions. Suc...

    journal_title:Parasitology research

    pub_type: 杂志文章,评审

    doi:10.1007/s00436-006-0412-8

    authors: Rymaszewska A

    更新日期:2007-04-01 00:00:00

  • Trombiculidae larvae (Neotrombicula autumnalis) infestation in a Little Bittern (Ixobrychus minutus) in Turkey.

    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

    authors: Cakiroglu D,Pekmezci D,Meral Y,Gokalp G,Acici M

    更新日期:2008-04-01 00:00:00

  • A sero-epidemiological survey of Chinese Babesia motasi for small ruminants in China.

    abstract::Babesia motasi BQ1 (Lintan) was first isolated from Haemaphysalis qinghaiensis collected in Gannan Tibet Autonomous Region, Gansu province in April 2000. In this study, a total of 3,204 serum samples from small ruminants in 22 provinces located in different districts of China were tested for antibodies against merozoi...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-013-3310-x

    authors: Wang JM,Ma ML,Liu AH,Ren QY,Li AY,Liu ZJ,Li YQ,Yin H,Luo JX,Guan GQ

    更新日期:2013-06-01 00:00:00

  • Motility and cytoskeletal organisation in the archigregarine Selenidium pygospionis (Apicomplexa): observations on native and experimentally affected parasites.

    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

    authors: Kováčiková M,Paskerova GG,Diakin A,Simdyanov TG,Vaškovicová N,Valigurová A

    更新日期:2019-09-01 00:00:00

  • The effect of sheep breed, age, and gender on the pharmacokinetics and efficacy of monepantel, an amino-acetonitrile derivative.

    abstract::This analysis investigated the influence of breed and gender on the pharmacokinetics of monepantel, and influence of breed, age, and gender on its efficacy against gastrointestinal nematodes of sheep. In a comparison of pharmacokinetic profiles from two studies, Merino lambs had significantly greater maximum concentra...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-009-1671-y

    authors: Hosking BC,Kaminsky R,Sager H,Karadzovska D,Seewald W,Giraudel JM,Vercruysse J

    更新日期:2010-01-01 00:00:00

  • Acaricidal efficacy of thymol on engorged nymphs and females of Rhipicephalus sanguineus (Latreille, 1808) (Acari: Ixodidae).

    abstract::The present work was aimed at evaluating the "in vitro" efficacy of different concentrations of thymol on engorged nymphs and females of Rhipicephalus sanguineus. The nymphs were separated in seven groups and immersed in different concentrations of thymol (0.25%, 0.5%, 1.0%, 1.5%, and 2.0%) for 5 min. A control group ...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-009-1530-x

    authors: de Oliveira Monteiro CM,Daemon E,Aparecido Clemente M,Dos Santos Rosa L,Maturano R

    更新日期:2009-10-01 00:00:00

  • Molecular characterization of Trypanosoma cruzi and infection rate of the vector Triatoma dimidiata in Costa Rica.

    abstract::According to the genetic characterization by the analysis of the miniexon gene, strains of Trypanosoma cruzi can be classified into six discrete typing units (DTUs), and the DTU 1 into four distinct genotypes associated with different life cycles. While Chagas disease is endemic in Costa Rica, T. cruzi isolates from t...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-012-3000-0

    authors: Zuriaga MÁ,Blandón-Naranjo M,Valerio-Campos I,Salas R,Zeledón R,Bargues MD

    更新日期:2012-10-01 00:00:00

  • Nippotaenia mogurndae Yamaguti et Myiata, 1940 (Cestoda, Nippotaeniidea): first data on spermiogenesis and sperm ultrastructure.

    abstract::Spermiogenesis and the spermatozoon ultrastructure of the cestode Nippotaenia mogurndae Yamaguti et Myiata, 1940 (Nippotaeniidea), a parasite of Perccottus glenii Dubowski, 1877 (Perciformes: Odontobutidae), have been investigated by means of transmission electron microscopy, cytochemical staining with periodic acid-t...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-015-4327-0

    authors: Bruňanská M,Bílý T,Nebesářová J

    更新日期:2015-04-01 00:00:00

  • Antiparasitic efficacy of piperine against Argulus spp. on Carassius auratus (Linn. 1758): in vitro and in vivo study.

    abstract::Argulus are common aquatic ectoparasites that create one of the major threats to aquaculture due to absence of suitable therapy. Piperine, a bioactive component of Piper longum, has medicinal properties and acts as anti-inflammatory, antibacterial, and antifungal, considering eco-friendliness and cost-effectiveness. T...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-012-3054-z

    authors: Kumar A,Raman RP,Kumar K,Pandey PK,Kumar V,Mohanty S,Kumar S

    更新日期:2012-11-01 00:00:00

  • Diagnostic imaging in sheep hepatic fascioliasis: ultrasound, computer tomography and magnetic resonance findings.

    abstract::Radiological features and biochemical changes were investigated during the parenchymal and ductal phases of chronic Fasciola hepatica infection in sheep. The activities of plasma aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and gamma-glutamyl transpeptidase (GGT), plasma levels of IgG anti- F. hepatic...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-003-0866-x

    authors: Gonzalo-Orden M,Millán L,Alvarez M,Sánchez-Campos S,Jiménez R,González-Gallego J,Tuñón MJ

    更新日期:2003-08-01 00:00:00

  • Influence of PF1022A on the motility of Angiostrongylus cantonensis in vitro.

    abstract::Our previous in vivo studies on angiostrongyliasis showed that PF1022A had stronger killing effects against female adults than against males. No killing effects were observed against young adult worms in the central nervous system. To characterize the former in vivo action of PF1022A, in vitro effects of PF1022A on th...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s004360050301

    authors: Kachi S,Terada M,Hashimoto H

    更新日期:1997-01-01 00:00:00

  • Feconomics®; a new and more convenient method, the routine diagnosis of intestinal parasitic infections.

    abstract::Direct wet mount examination and concentration are the most commonly used methods for detecting intestinal parasites from fecal samples. Concentration methods are used when there are fewer protozoan cyst, coccidian oocyst, microsporidial spore, helminth egg, and larvae in the fecal samples. Early detection of the caus...

    journal_title:Parasitology research

    pub_type: 杂志文章

    doi:10.1007/s00436-014-3899-4

    authors: Koltas IS,Akyar I,Elgun G,Kocagoz T

    更新日期:2014-07-01 00:00:00