Abstract：
:Phospholipid metabolism of the microsporidian Encephalitozoon cuniculi, an obligate intracellular parasite, has been investigated. Labeled precursor incorporation experiments have shown that phosphatidylserine decarboxylase and phosphatidylethanolamine N-methyltransferase are more active in cells infected by E. cuniculi than in uninfected cells. In contrast, no difference was observed in the activity of Kennedy pathway's enzymes, the mammalian pathway. This suggests the occurrence in microsporidia of a bacteria- and fungi-typical pathway for phospholipid synthesis, which is supported by the identification of two genes implicated in this pathway, the cds gene encoding the key enzyme CDP-diacylglycerol synthase (E.C. 2.7.7.41) and the pss gene for CDP-alcohol phosphatidyltransferase. The pss gene could encode phosphatidylserine synthase (E.C. 2.7.8.8.), which catalyses the de novo synthesis of phosphatidylserine in bacteria and fungi. The complete CDP-diacylglycerol synthase messenger has been isolated and shows very short 5' and 3' untranslated regions. This is strong evidence for the functionality of a metabolic pathway which could be a potential target against microsporidia which infect humans.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
El Alaoui H,Bata J,Peyret P,Vivarès CPdoi
10.1006/expr.2001.4635keywords:
subject
Has Abstractpub_date
2001-08-01 00:00:00pages
171-9issue
4eissn
0014-4894issn
1090-2449pii
S0014-4894(01)94635-1journal_volume
98pub_type
杂志文章abstract：:In Trypanosoma brucei the GPI-anchored variant surface glycoprotein (VSG) represents approximately 90% of cell surface protein and a major proportion of endoplasmic reticulum (ER) biosynthetic output. We identified four trypanosomatid-specific genes encoding candidate ER-resident proteins; all were required for normal...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2010.01.015
更新日期：2010-07-01 00:00:00
abstract：:The goal of this study was to compare two parasitological diagnostic techniques, such as by Micro-Haematocrit Centrifugation Technique (MHCT) and Direct Microscopic Examination (DME) with a serological method (iELISA), and a molecular procedure PCR, in rabbits experimentally infected with Trypanosoma evansi, in order ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2011.02.010
更新日期：2011-05-01 00:00:00
abstract：:Inbred strains of mice differ in their susceptibility and resistance to challenge infections with Nematospiroides dubius. In our studies, F1 hybrid mice from resistant SJL and susceptible CBA parents were resistant to N. dubius challenge infections. Only 22% of backcrosses to SJL were susceptible while backcrosses to ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(88)90003-3
更新日期：1988-10-01 00:00:00
abstract：:Toxoplasmosis is a widely distributed disease caused by the protozoan Toxoplasma gondii that is mainly transmitted orally. Once ingested, the parasite crosses the intestinal barrier to reach the blood and lymph systems to migrate to other regions of the host. The objective of this study was to evaluate the changes in ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2015.05.007
更新日期：2015-09-01 00:00:00
abstract：:Entamoeba histolytica infection is associated with considerable morbidity and mortality in the form of intestinal and extraintestinal amoebiasis. No vaccine is yet available for amoebiasis. Heparan Sulphate Binding Proteins (HSBPs) from E. histolytica were evaluated for immunogenicity and protective efficacy in a Guin...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2013.08.011
更新日期：2013-11-01 00:00:00
abstract：:We probed DNA from all trypanosomatid genera by slot blot hybridization with an oligonucleotide (SL3') complementary to a sequence of the Phytomonas spliced-leader or mini-exon RNA. The 19-nucleotide probe target site was previously shown to be highly conserved among a limited number of Phytomonas isolates, but diverg...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1996.0119
更新日期：1996-12-01 00:00:00
abstract：:The effect of a synthetic cecropin-like peptide, Shiva-3, on in vitro ookinete development and on the early sporogonic stages of Plasmodium berghei in the midgut of Anopheles albimanus was investigated. Peptide concentrations of 75 and 100 microM were effective (P < 0.05) in reducing ookinete production and the number...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1995.1075
更新日期：1995-06-01 00:00:00
abstract：:Betulinic acid is a pentacyclic triterpenoid with several biological properties already described, including antiparasitic activity. Here, the anti-Trypanosoma cruzi activity of betulinic acid and its semi-synthetic amide derivatives (BA1-BA8) was investigated. The anti-Trypanosoma cruzi activity and selectivity were ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2016.04.007
更新日期：2016-07-01 00:00:00
abstract：:Mitochondria from a rodent malarial parasite (Plasmodium berghei) were successfully purified by differential centrifugation and 22% Percoll density gradient separation. The purified mitochondria from the erythrocytic stages of the parasite had a density of 1.05 and were found to be heterogeneous by transmission electr...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1993.1070
更新日期：1993-09-01 00:00:00
abstract：:Partial nucleotide sequences of large subunit ribosomal RNA (LSU rRNA) coding genes of Theileria parva and T. taurotragi were determined. Alignment of the T. parva and T. taurotragi sequences revealed species-specific regions within the LSU rRNA genes. A major species-variable region, located between the first and sec...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1995.1012
更新日期：1995-02-01 00:00:00
abstract：:Plasma butyrylcholinesterase (BChE) hydrolyzes ester-containing compounds such as succinylcholine, as well as acting as a scavenger against neurotoxic organophosphates (OPs). We previously found that Nippostrongylus brasiliensis infection makes rats more susceptible to OP toxicity by decreasing serum paraoxonase-1 (PO...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.02.009
更新日期：2009-06-01 00:00:00
abstract：:Parasitic castration in the snail-trematode relationship can be understood as any change in the reproductive function of the snail that is due to interference by the developing larvae inside the snail that leads to the reduction or complete disruption of egg-laying activity. This study was designed to observe the para...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2013.03.020
更新日期：2013-06-01 00:00:00
abstract：:Isospora suis is an intestinal protozoan parasite in pigs. The 2-3 weeks old piglets are most often infected by I. suis because their immune system is not fully developed. The infection exhibits clinical features such as diarrhea and dehydration and seriously affects the economic interests of farmers. The traditional ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2016.03.001
更新日期：2016-06-01 00:00:00
abstract：:Gastro-intestinal (GI) parasites are of great agricultural importance, annually costing the livestock industry vast amounts in resources to control parasitism. One such GI parasite, Haemonchus contortus, is principally pathogenic to sheep; with the parasite's blood-feeding behaviour causing effects ranging from mild a...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2005.08.001
更新日期：2005-12-01 00:00:00
abstract：:Intestinal cestodes with complex life cycles have to pass through the acid stomach lumen of their vertebrate host(s) in order to reach their preferred site of development. The cestode's tegument is the only organ in constant contact with this hostile environment. Procercoids of Schistocephalus solidus (order Diphyllob...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2013.01.019
更新日期：2013-05-01 00:00:00
abstract：:As an approach to better understand the molecular mechanisms underlying the differential cellular response to larval Schistosoma mansoni observed in Biomphalaria glabrata, we have analyzed hemocyte membrane-associated polypeptides from inbred susceptible and resistant strains of B. glabrata. A combination of technique...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1994.1053
更新日期：1994-08-01 00:00:00
abstract：:The yellow fever mosquito, Aedes aegypti, expresses a gene, Apyrase (Apy), that encodes an ATP-diphosphohydrolase. The product of this gene is a secreted enzyme that facilitates hematophagy by preventing platelet aggregation in the host. Apy gene expression is limited to the cells of the distal-lateral and medial lobe...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1995.1114
更新日期：1995-11-01 00:00:00
abstract：:How the avermectins cause the elimination of gastrointestinal nematodes from host animals has not yet been clearly identified. Using visual and radiometric parameters to measure oral ingestion in Haemonchus contortus, we showed that ivermectin (IVM) rapidly inhibited ingestion at concentrations > or = 10(-10) M. Motil...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1993.1064
更新日期：1993-08-01 00:00:00
abstract：:Phlebotomus papatasi is susceptible to Leishmania major which it transmits in nature, but is resistant to L. donovani. The present study compares the effect of L. major and L. donovani on the proteolytic activity of P. papatasi gut enzymes. The experiments measured digestion of C14-labeled globin by gut homogenates of...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(86)90045-7
更新日期：1986-12-01 00:00:00
abstract：:In this study, human sera reactivity against nine peptides derived from the Toxoplasma gondii P30 protein was assessed by ELISA in patients with different clinical forms of toxoplasmosis. Same as has been reported in mice, sera from congenital, ocular and chronic asymptomatic toxoplasmosis patients recognized more str...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.06.017
更新日期：2009-10-01 00:00:00
abstract：:One difficulty facing post-genomic analyses of schistosomes is the limited data on sites of expression of many gene products expressed by the parasites in their hosts. The potential for use of laser microdissection microscopy as a preparative technique for transcriptional and proteomic profiling is reviewed. This tech...
journal_title：Experimental parasitology
pub_type： 杂志文章,评审
doi：10.1016/j.exppara.2007.06.004
更新日期：2007-11-01 00:00:00
abstract：:Three different cell lines (murine macrophages, HeLa and osteosarcoma cells) were assayed in order to check for the manifestation of the cytopathic effects of three strains of Acanthamoeba recently isolated in our laboratory from contact lens cases: CLC-16, CLC-41.r and CLC-51-l. Adhesion and cytotoxicity assays were ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.10.011
更新日期：2010-09-01 00:00:00
abstract：:Canine leishmaniosis due to Leishmania infantum is a widespread zoonotic disease. Although aminosidine can be an effective treatment, current therapeutic recommendations do not advocate its use, mainly due to concerns regarding the potential nephrotoxicity and ototoxicity of this drug. The aim of this randomized, blin...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2019.107768
更新日期：2019-11-01 00:00:00
abstract：:Crude salivary gland derived proteins from Amblyomma americanum ticks were analyzed by physiochemical (gel filtration and ion exchange chromatography) and immunochemical guinea pig IgG1 (anti-tick immunoaffinity column) techniques for the presence of antigens responsible for the induction of host immune resistance res...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(86)90006-8
更新日期：1986-08-01 00:00:00
abstract：:This study was designed to determine the effects of age and the role of spleen in rats with heavy Angiostrongylus cantonensis infection. Young rats (8 weeks) infected with 100 larvae were found to have significantly higher worm recovery rate (75.0±6.6%) than the adult (6 months) (55.7±1.5%) and the aging ones (13 mont...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2012.04.004
更新日期：2012-06-01 00:00:00
abstract：:The effect of experimental exposure of Bradybaena similaris by Eurytrema coelomaticum on the cholesterol and triglycerides total levels circulating in the hemolymph and the neutral lipids in the digestive gland-gonad (DGG) complex of the host snail were studied. In this study, snails were dissected after one, two, and...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2014.06.010
更新日期：2014-09-01 00:00:00
abstract：:The asexual development cycle of Plasmodium falciparum, a malarial parasite of humans, has been synchronized in culture by treating ring-stage parasites with aphidicolin, an inhibitor of DNA synthesis. Optimization of both the concentration of drug added to ring stage containing red blood cells and the duration of exp...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(84)90061-4
更新日期：1984-02-01 00:00:00
abstract：:In order to examine the role of IFN-gamma, TNFRp55 and iNOS in inflammatory reaction during toxoplasmosis, IFN-gamma(-/-), TNFRp55(-/-) and iNOS(-/-) mice were experimentally infected with Toxoplasma gondii ME-49 strain. The organs of the mice were evaluated for histology and immunohistochemistry in detection of tissu...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.05.011
更新日期：2009-09-01 00:00:00
abstract：:Toxoplasma gondii and the related Apicomplexan protozoan pathogens, Plasmodium, Cryptosporidium, and Eimeria, are obligate intracellular parasites which cause severe disease in their hosts. The recent development of transient transfection of Toxoplasma permits the development of strategies utilizing "reverse genetics"...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1995.1006
更新日期：1995-02-01 00:00:00
abstract：:In this first report about pinworms peptidases we primarily characterize peptidases released during in vitro maintenance of two common pinworms of laboratory animals -Syphacia muris and Passalurus ambiguus. The peptidase activity obtained using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) showe...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2010.04.018
更新日期：2010-10-01 00:00:00
