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 tissue parasitism and iNOS positive cells. IFN-gamma(-/-) mice presented mild inflammation in peripheral organs associated with a high parasitism and mortality in the acute phase of infection. In contrast, the peripheral organs of WT, TNFRp55(-/-) and iNOS(-/-) mice, presented a significant inflammatory reaction and low tissue parasitism in the same period of infection. The inflammatory lesions and tissue parasitism were increased and more severe in the Central Nervous System (CNS) of TNFRp55(-/-) and iNOS(-/-) with a progression of infection, when compared to WT mice. In these knockout animals, the inflammatory changes were associated with low levels or no expression of iNOS in TNFRp55(-/-) and iNOS(-/-) mice, respectively.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
Silva NM,Vieira JC,Carneiro CM,Tafuri WLdoi
10.1016/j.exppara.2009.05.011subject
Has Abstractpub_date
2009-09-01 00:00:00pages
65-72issue
1eissn
0014-4894issn
1090-2449pii
S0014-4894(09)00149-0journal_volume
123pub_type
杂志文章abstract：:Leishmania is an obligate intracellular protozoan parasite that infects cells of the reticulo-endothelial system. Host defences against Leishmania include fever and oxidant production, and the parasite has developed a number of defence mechanisms to neutralize the host response. The Leishmania donovani A2 family of pr...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2012.06.001
更新日期：2012-10-01 00:00:00
abstract：:This study aimed to investigate the effects of diphenyl diselenide (PhSe)2 to treat mice experimentally infected by Toxoplasma gondii on seric biomarkers of cardiac function (creatine kinase, creatine kinase MB, troponin, and myoglobin), and lactate dehydrogenase, as well as to evaluate the enzymatic activity of creat...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2016.04.014
更新日期：2016-08-01 00:00:00
abstract：:There is evidence which suggests that malaria sporozoites recognize mosquito salivary glands by specific receptor-ligand interactions. We are interested in identifying the putative salivary gland receptor(s) for sporozoite invasion. We used an in vivo bioassay for sporozoite invasion of salivary glands. In this assay,...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1995.1124
更新日期：1995-11-01 00:00:00
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：:Trichinella spiralis causes a significantly higher parasite burden in rat muscle than Trichinella nativa. To assess whether the difference in infectivity is due to the early intestinal response, we analyzed gene expression changes in the rat jejunum during Trichinella infection with a whole-genome microarray. The rats...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2013.07.024
更新日期：2013-10-01 00:00:00
abstract：:A total of 597 faecal samples were collected from western grey kangaroos (Macropus fuliginosus), Euros (M. robustus), red kangaroos (M. rufus) in Western Australia and Eastern Grey Kangaroos (M. giganteus) from Victoria and screened for the presence of Eimeria by PCR at the 18S ribosomal RNA (rRNA) locus. The overall ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2012.07.003
更新日期：2012-10-01 00:00:00
abstract：:Giardia lamblia consist of heterogeneous isolates that can be divided into at least three groups. Differential screening of a cDNA library with isolate-specific antisera identified a gene which is expressed and found only in Group 3 isolates. This gene, GLORF-C4, is 597 bp in length and predicts a deduced protein of 1...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(92)90250-e
更新日期：1992-12-01 00:00:00
abstract：:The oxidative metabolism of peritoneal macrophages (PM) and neutrophils from nifedipine (calcium channel blocker)-treated, Plasmodium berghei (NK 65)-infected and normal infected Swiss Albino mice was studied. A significant fall in oxidative metabolism as evidenced by decreased chemiluminescence (CL) response (P less ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(92)90135-w
更新日期：1992-02-01 00:00:00
abstract：:The largest obstacle impeding the development of an effective malaria vaccine is the incomplete understanding of how the immune response is regulated during infection. B-1a cells, a poorly understood subcategory of B lymphocytes, produce nonpathologic autoantibodies of low affinity which have been shown to have distin...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.2001.4622
更新日期：2001-06-01 00:00:00
abstract：:Human cysticercosis caused by Taenia crassiceps is unusual; however, it is an useful experimental model for cysticercosis studies. Benzimidazole derivatives are important antihelminthic drugs widely used against helminths. A novel compound 6-chloro-5-(1-naphthyloxy) -2-(trifluoromethyl)-1H-benzimidazole (RCB20) is a b...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2016.11.002
更新日期：2017-01-01 00:00:00
abstract：:In this report, an immunodominant antigen called BgIRA from Babesia gibsoni is identified and described. A highly repetitive antigen was screened from a cDNA library. The genomic BgIRA gene exists as single cope gene and contains 10 introns. BgIRA plays a dominant role in the immune response in dogs infected with B. g...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2007.07.005
更新日期：2008-01-01 00:00:00
abstract：:Giardia lamblia is a parasite that causes giardiasis in humans and other mammals. The common treatment includes different classes of drugs, which were described to produce unpleasant side effects. Mentha x piperita, popularly known as peppermint, is a plant that is frequently used in the popular medicine to treat gast...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2006.05.001
更新日期：2007-01-01 00:00:00
abstract：:In C57BL/6 mice, Leishmania donovani infection in the liver provoked IFN-γ-induced expression of the immunity-related GTPases (IRG), Irgm1 and Irgm3. To gauge the antileishmanial effects of these macrophage factors in the liver, intracellular infection was analyzed in IRG-deficient mice. In early- (but not late-) stag...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2015.07.005
更新日期：2015-10-01 00:00:00
abstract：:This article describes a sensitive, cheap, and easy method for assaying chemotaxic responses of Leishmania promastigotes. A gradient of the substance to be assayed was produced inside a series of commercially available capillary tubes submerged in a promastigote suspension. After an incubation period, the attractivene...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.2000.4569
更新日期：2000-11-01 00:00:00
abstract：:A comparative study of cell surface characteristics of pathogenic and nonpathogenic promastigotes of Leishmania braziliensis, NR and LBY strains, respectively, was carried out by means of concanavalin A agglutination and labeling with concanavalin A-fluorescein isothiocyanate, concanavalin A-ferritin, and cationized f...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(85)90071-2
更新日期：1985-04-01 00:00:00
abstract：:In the present study, we examined the effect of the histone deacetylase (HDAC) inhibitors trichostatin A (TSA), valproic acid (VA) and sodium-butyrate on the metamorphosis of larvae of the human blood-fluke Schistosoma mansoni from the free-swimming miracidia into the intramolluskal sporocyst. We show that HDAC inhibi...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2008.11.010
更新日期：2009-03-01 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：:The transport of the megadalton protein Pf332 was studied during the asexual bloodstage development of Plasmodium falciparum. Four mouse monoclonal antibodies, produced against a recombinant polypeptide derived from the Pf332 protein, were used to analyze the kinetics of synthesis, the subcellular location, and transp...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1994.1091
更新日期：1994-11-01 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：:In the present study, we examined the effect of amphotericin B on larval stages (miracidia and primary sporocyst) of the helminth Schistosoma mansoni, the causative agent of human schistosomiasis. Amphotericin B (AmB) is a polyene macrolide that disturbs the function of the cell membrane; it is widely used as prophyla...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.12.024
更新日期：2010-06-01 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：:Toxoplasma gondii is a protozoan parasite of great importance in human and veterinary health. The frontline treatment of antifolates suffers a variety of drawbacks, including toxicity and allergic reactions, underscoring the need to identify novel drug targets for new therapeutics to be developed. We previously showed...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2020.107868
更新日期：2020-02-28 00:00:00
abstract：:Protective immunity against a Plasmodium falciparum blood infection can be passively transferred by antibodies in humans and in the primate experimental malaria model Saimiri sciureus. We report here the emergence of a novel virulent parasite population after such passive transfer of hyperimmune serum in splenectomize...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1998.4318
更新日期：1998-09-01 00:00:00
abstract：:The extracellular metalloproteinases of the insect trypanosomatid Crithidia guilhermei were characterized through the incorporation of different protein substrates (gelatin, casein, haemoglobin, and bovine serum albumin) into SDS-PAGE. Two gelatinases (60 and 80 kDa) showed ability to degrade casein as well and a 67-k...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/s0014-4894(03)00037-7
更新日期：2002-11-01 00:00:00
abstract：:A new type of cell has been identified in cercariae of Schistosoma mansoni. The perikarya (cell bodies) of these cells were located in the body (midsegment), in an area oral to the acetabulum (ventral sucker). Cytoplasmic processes extending from the perikarya ramified throughout the parenchyma of the anterior organ (...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(86)90132-3
更新日期：1986-02-01 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：:Entomopathogenic nematode Heterorhabditis bacteriophora Az29 and Az36 isolates with different virulence against Popillia unipuncta and soil survival time were isolated from the Azorean archipelago (Portugal) and used for the study. RAPD analysis revealed a very low-level of genetic diversity (GD(axenic Az36 isolate)(a...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2011.12.001
更新日期：2012-02-01 00:00:00
abstract：:Proteasomes are multi-subunit proteases involved in several mechanisms and thought to contribute to the regulation of cellular homeostasis. Here, we report for the first time biochemical evidence for the existence of a ubiquitin-proteasome proteolytic pathway in this parasite. Proteasomes from both cercariae and adult...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2005.01.002
更新日期：2005-04-01 00:00:00
abstract：:The experiments described here report on the correlation between the ex vivo diffusion of different benzimidazole (BZD) anthelmintics into the cestode parasite Moniezia benedeni, and their octanol-water partition coefficients (P.C.). The characterisation of the drug diffusion process into target parasites is relevant ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/s0014-4894(03)00060-2
更新日期：2003-01-01 00:00:00
abstract：:Schistosomiasis remains a global health problem. In the Mekong river basin, approximately 80,000 people are at risk of infection by Schistosoma mekongi. The parasite's eggs become entrapped in the host's organs and induce massive inflammation, contributing to the pathogenesis of schistosomiasis. In addition, egg antig...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2018.07.002
更新日期：2018-08-01 00:00:00
