Abstract:
:Crohn's disease (CD) is considered to be caused by a disorder of the immune system and helminth infections may interact with development of the disease. We induced colitis in mice by trinitrobenzenesulfonic acid (TNBS) and observed the effects of intraperitoneally injected eggs of Schistosoma japonicum on the course of the disease. The inflammation in the colon was reduced in egg-treated mice and secretion of IFN-gamma (a Th1 cytokine) by cultured spleen cells in vitro was greatly suppressed, and of IL-4, IL-5 and IL-10 (Th2 cytokines) significantly elevated after egg injection. Also, the percentage of regulatory T-cells (Tregs) was increased in the spleens of egg-exposed mice with TNBS-induced colitis compared to non-egg exposed animals. The data suggest that Tregs may be activated by S. japonicum eggs and play a role in restoring immune disorders in TNBS-induced colitis of mice.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
Mo HM,Liu WQ,Lei JH,Cheng YL,Wang CZ,Li YLdoi
10.1016/j.exppara.2007.02.009subject
Has Abstractpub_date
2007-08-01 00:00:00pages
385-9issue
4eissn
0014-4894issn
1090-2449pii
S0014-4894(07)00053-7journal_volume
116pub_type
杂志文章abstract::Two recombinant barley cystatins, HvCPI5 and HvCPI6, have been tested in vitro against promastigotes and intracellular amastigotes of Leishmania infantum in the J774 monocytic cell line. Toxicity of cystatins for J774 cells was also determined. In addition, a comparison between direct counts of intracellular amastigot...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2009.08.015
更新日期:2009-12-01 00:00:00
abstract::Automated extraction of DNA for testing of laboratory samples is an attractive alternative to labour-intensive manual methods when higher throughput is required. However, it is important to maintain the maximum detection sensitivity possible to reduce the occurrence of type II errors (false negatives; failure to detec...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2014.08.006
更新日期:2014-11-01 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:INTRODUCTION:It has been reported that behavioral changes relate to infection in different parasitoses. However, the relation between the extent of the behavioral changes and the magnitude of the infection has been scarcely studied. The aim of this study was to evaluate the relationship between different doses of infec...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2016.04.013
更新日期:2016-07-01 00:00:00
abstract::Resistance and sensitivity to normal human serum (NHS) of Trypanosoma congolense, a parasite believed to cause disease in animals only, were investigated in vivo as well as in vitro. Our results indicate that like Trypanosoma brucei, T. congolense can be grouped into three different phenotypes according to its resista...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/s0014-4894(03)00032-8
更新日期:2002-10-01 00:00:00
abstract::An active Trypanosoma cruzi transmission cycle maintained by wild rodents in the Andean valleys of Cochabamba Bolivia is described. Wild and domestic Triatoma infestans with 60% infection with T. cruzi were found and was evidenced in 47.5% (rodents) and 26.7% (marsupial) by parasitological and/or serologycal methods. ...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2006.04.010
更新日期:2006-12-01 00:00:00
abstract::A ceramide-anchored glycophosphosphingolipid antigen was isolated from the lipid extract of Leishmania donovani promastigotes. The affinity-purified glycolipid antigen contained galactose, mannose, myo-inositol, phosphate, ceramide, and hexosamine but no sialic acid. The phosphate group was present internally at the c...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(92)90148-4
更新日期:1992-05-01 00:00:00
abstract::We have studied inflammatory reactions in the mesenteric tissue of mice infected with Schistosoma mansoni. Perivascular tissue contained diffuse infiltrates of macrophages, eosinophilic granulocytes and lymphocytes. Angiogenesis in the perivascular adipose tissue was associated with superficial plasmacytogenic foci. P...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(92)90203-m
更新日期:1992-06-01 00:00:00
abstract::Cryptosporidiosis, caused by the protozoan parasite Cryptosporidium, represents the major public health concern of water utilities in developed nations due to its small size, resistance to disinfection and ability to be shed in large numbers in faeces. In Australia, recreational access is not allowed on direct supply ...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2012.04.015
更新日期:2012-08-01 00:00:00
abstract::An increased level of plasma corticosterone is one manifestation of severe environmental or physiologic stress. The stress response mediated by the hypothalamic-pituitary-adrenal axis is already known to suppress immunoglobulin production and to impair immune function, but there are few studies relating stress and pla...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2007.05.008
更新日期:2007-12-01 00:00:00
abstract::Proteins belonging to the serine protease inhibitor (serpin) superfamily play essential roles in many organisms. In arthropods these proteins are involved in innate immune system, morphogenesis and development. In mammals serpins regulate pathways that are essential to life such as blood coagulation, fibrinolysis, inf...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2013.12.001
更新日期:2014-02-01 00:00:00
abstract::Vero cells have been used successfully in Toxoplasma gondii maintenance. Medium supplementation for culture cells with fetal bovine serum is necessary for cellular growth. However, serum in these cultures presents disadvantages, such as the potential to induce hypersensitivity, variability of serum batches, possible p...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2012.01.005
更新日期:2012-04-01 00:00:00
abstract::We have characterized a member of the profilin (PROF) family protein as a common antigen in three pathogens-Babesia bovis (B. bovis), Babesia bigemina (B. bigemina), and Babesia microti (B. microti)-and evaluated its immunogenic and cross-protective properties against a challenge infection with B. microti in BALB/c mi...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2016.03.024
更新日期:2016-07-01 00:00:00
abstract::Giardia lamblia, an early diverging eukaryote that infects several species including humans and a major agent of water-borne diarrhea throughout the world, can be infected with a double-stranded RNA virus, giardiavirus (GLV). A chimeric GLV cDNA and green fluorescent protein (GFP) according to the cis-acting signals o...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2004.12.006
更新日期:2005-03-01 00:00:00
abstract::Rosetting is a parasite adhesion phenotype associated with severe malaria in African children. Why parasites form rosettes is unknown, although enhanced invasion or immune evasion have been suggested as possible functions. Previous work showed that rosetting does not enhance parasite invasion under standard in vitro c...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2005.11.007
更新日期:2006-04-01 00:00:00
abstract::The presence of the cytoskeleton of Acanthamoeba castellanii was observed by means of cryo-electronmicroscopy and immunofluorescence techniques. This structure is formed largely by fibers and networks of actin located mainly in cytoplasmic locomotion structures as lamellipodia and as well as in various endocytic struc...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2008.04.004
更新日期:2008-07-01 00:00:00
abstract::Nitazoxanide (NTZ) is a broad-spectrum anti-parasitic drug used against a wide variety of protozoans and helminthes. Albendazole, its active metabolite albendazole sulfoxide (ABZSO), is one of the drugs of choice to treat both intestinal and tissue helminth and protozoan infections. However little is known regarding t...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2016.10.012
更新日期:2016-12-01 00:00:00
abstract::Early diagnosis and determining the infective stage are critical for effective therapy of toxoplasmosis. Owing to the progress in biotechnology, commonly used native, non-standardized diagnostic antigens should be replaced by genetically engineered antigens. The recombinant proteins are also promising components of su...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2015.01.006
更新日期:2015-03-01 00:00:00
abstract::Aedes aegypti mosquitoes salivate during intradermal probing of vertebrate prey before ingesting blood (Griffiths and Gordon 1952). Nonsalivating mosquitoes locate blood more slowly; this difference was ascribed to an anti-platelet activity found in the mosquito's saliva (Ribeiro et al. 1984). Mosquitoes infected with...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/s0014-4894(85)80029-1
更新日期:1985-08-01 00:00:00
abstract::A cell-free culture system for Cryptosporidium parvum was analysed using scanning electron microscopy (SEM) to characterise life cycle stages and compare gene expression in cell-free culture and cell culture using HCT-8 cells. Cryptosporidium parvum samples were harvested at 2 h, 8 h, 14 h, 26 h, 50 h, 74 h, 98 h, 122...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2015.03.002
更新日期:2015-06-01 00:00:00
abstract::The blood dwelling stages of schistosomes have acetylcholinesterase (AChE) and nicotinic-like acetylcholine receptors (nAChR) on their teguments. Both AChE and nAChR are concentrated on the dorsal surface of the adult male, a major surface for nutrient uptake for the worm pair. Exposure of tegumental AChE and nAChR to...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1995.1152
更新日期:1995-12-01 00:00:00
abstract::Only two drugs are currently available for the treatment of Chagas disease and their effectiveness are unsatisfactory. Photorhabdus luminescens and Xenorhabdus nematophila, two enteric bacteria highly pathogenic to a broad range of insects, have been studied as potential source for bioactive metabolites against protoz...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2019.107724
更新日期:2019-09-01 00:00:00
abstract::Toxoplasma gondii, an intracellular parasite, has two distinctive growth stages, namely rapidly growing tachyzoites and slowly growing bradyzoites. Here we report a unique physiological function of the last committed glycolytic enzyme of T. gondii, lactate dehydrogenase (TgLDH), which is present in two isoforms and ex...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2009.01.016
更新日期:2009-06-01 00:00:00
abstract::Schistosomiasis is one of the world's greatly neglected tropical diseases, and its control is largely dependent on a single drug, praziquantel. Here, we report the in vitro effect of piplartine, an amide isolated from Piper tuberculatum (Piperaceae), on Schistosoma mansoni adult worms. A piplartine concentration of 15...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2010.08.021
更新日期:2011-02-01 00:00:00
abstract::Two fasciolicide preparations have been compared in 130 rats experimentally infected with Fasciola hepatica. Parasitological, immunological, and biochemical parameters have been followed to monitor the efficacy of the treatments. While Fascinex (triclabendazole) efficiently cured both male and female rats when adminis...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.2000.4501
更新日期:2000-04-01 00:00:00
abstract::Serine hydroxymethyltransferase belongs to the class of pyridoxal-5-phosphate enzymes along with aspartate aminotransferase. To explore the function of residue(s) involved in binding of the carboxylate group of Tetrahydrofolic acid (THF) to L. donovani cytosolic serine hydroxymethyltransferase (LdcSHMT), the gene was ...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2014.12.004
更新日期:2015-02-01 00:00:00
abstract::Large numbers (10(4) to greater than 10(5)/ml) of Type I water-resistant Giardia lamblia cysts were produced in vitro under conditions that are characteristic of the human intestinal lumen. We define Type I cyst morphology as oval shaped, smooth, and refractile, with cyst wall, axostyle, and median body visible in rel...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(89)90185-9
更新日期:1989-08-01 00:00:00
abstract::Cercariae of Schistosoma mansoni produce a wide variety of eicosanoids when stimulated by 3.3 mM linoleate. High-performance liquid chromatography indicated that 10(-5) M esculetin dramatically decreased eicosanoid production by cercariae. Ibuprofen (10(-4) M) also decreased eicosanoid production, but to a lesser exte...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/s0014-4894(85)80024-2
更新日期:1985-08-01 00:00:00
abstract::Spent mushroom compost (SMC) is a residue generated in edible mushrooms production, such as Hypsizygus marmoreus. Its genome was recently sequenced, demonstrating cuticle-degrading protease genes. The present work aims to investigate the proteases from H. marmoreus spent mushroom compost (SMC) by verifying its action ...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2018.12.006
更新日期:2019-02-01 00:00:00
abstract::Due to the occurrence of genetic recombination, a reliable and discriminatory method to genotype Cryptosporidium isolates at the intra-species level requires the analysis of multiple loci, but a standardised scheme is not currently available. A workshop was held at the Robert Koch Institute, Berlin in 2016 that gather...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2018.06.004
更新日期:2018-08-01 00:00:00