Antibody responses in onchocerciasis as a function of age and infection intensity.

abstract：:Leishmania major causes mild-to-severe cutaneous lesions resulting in significant disfigurations, if untreated. The drugs are toxic, and drug-resistance parasites are emerging. Therefore, a prophylactic vaccination is an urgent need. As no vaccine is available, we compared the genes expressed by virulent and avirulent...

journal_title：Parasite immunology

authors： Zutshi S,Kumar S,Sarode A,Roy S,Sarkar A,Saha B

更新日期：2020-02-01 00:00:00

abstract：:In this study, supplementation with the probiotic Saccharomyces boulardii promoted a reduction in intensity of infection by Toxocara canis and modulates cytokines mRNA expression in experimentally infected mice. IL-12 gene transcription had 40-fold increase in S. boulardii supplemented uninfected mice and sevenfold in...

journal_title：Parasite immunology

authors： de Avila LF,de Leon PM,de Moura MQ,Berne ME,Scaini CJ,Leivas Leite FP

更新日期：2016-05-01 00:00:00

abstract：:A 17 kD protein of Necator americanus was isolated by SDS-PAGE and used to raise monospecific antisera in rabbits. ELISA and Western blotting against a range of parasite extracts demonstrated the species specificity of this protein. It is expressed at all stages of the life-cycle, appears to be accumulated through the...

journal_title：Parasite immunology

authors： Pritchard DI,McKean PG,Rogan MT,Schad GA

更新日期：1990-05-01 00:00:00

abstract：:Mitogen-activated lymphocytes co-cultured with either purified Trypanosoma cruzi trypomastigotes or the filtrate of trypomastigote suspensions in culture medium manifest a significant decrease in their capacities to express p55 interleukin-2 receptor molecules (p55IL-2R) on their membrane and proliferate. In this stud...

journal_title：Parasite immunology

authors： Kierszenbaum F,Majumder S,Mejia Lopez H,Sztein MB

更新日期：1995-04-01 00:00:00

abstract：:Serum antibody responses of mice exposed to Philippine isolates of Schistosoma japonicum have been analysed by immunoprecipitation of exogenously radiolabelled antigens extracted from adult worms. Attention was focused on labelled protein antigens differentially recognized by sera of mice that differ genetically in th...

journal_title：Parasite immunology

authors： Mitchell GF,Beall JA,Cruise KM,Tiu WU,Garcia EG

更新日期：1985-03-01 00:00:00

abstract：:In order to gain insights into the immune response in onchocerciasis during early infection, laboratory-reared calves were infected with 1000 Onchocerca lienalis infective larvae and examined serologically over a period of 508 days. Levels of serum antibodies measured by ELISA against adult worm extract revealed a mul...

journal_title：Parasite immunology

authors： Kuo YM,Bianco AE

更新日期：1995-08-01 00:00:00

abstract：:The soluble portion of a large particle fraction which was derived from the muscle larva of T. spiralis was subjected to molecular sizing column chromatography using Sephacryl S-200. Five major peaks of 280 nm absorbing material were obtained. Analysis by immunoelectrophoresis revealed that each peak contained antigen...

journal_title：Parasite immunology

authors： Despommier DD

更新日期：1981-10-01 00:00:00

abstract：:Recent advances in molecular genetics and in imaging mean that it is now increasingly feasible to image biological processes within helminth parasites and to visualize interactions between worms and their hosts. Moreover, other innovative imaging approaches that are not dependent on transgenic parasites have been appl...

journal_title：Parasite immunology

authors： Pearce EJ,Lok JB

更新日期：2013-09-01 00:00:00

abstract：:The present paper reviews the available literature on the development of immunity to animal Schistosoma infections. The majority of the studies on animal schistosomiasis were performed in cattle and pigs and only Schistosoma mattheei, S. bovis and S. japonicum received particular attention, mainly because of their rec...

journal_title：Parasite immunology

authors： Vercruysse J,Gabriel S

更新日期：2005-07-01 00:00:00

abstract：:The overall performance of quantitative assays in the detection of anti-Toxoplasma IgG is satisfactory, but discrepancies between assays are not uncommon especially when IgG concentrations are close to the limit of detection of the tests. The purpose of our study was to identify soluble and membrane antigens extracted...

journal_title：Parasite immunology

authors： Khammari I,Saghrouni F,Lakhal S,Bougmiza I,Bouratbine A,Ben Said M,Boukadida J

更新日期：2014-12-01 00:00:00

abstract：:Net intestinal fluid movement was measured in immunized and non-immunized rats infected with the enteric stages of the nematode, Trichinella spiralis. Animals were studied 30 min, 5 days and 30 days after receiving infective larvae. Net water movement across the mucosal surface of the gut was measured in vivo by perfu...

journal_title：Parasite immunology

authors： Castro GA,Hessel JJ,Whalen G

更新日期：1979-01-01 00:00:00

abstract：:Studies to clarify the mechanisms of apoptosis in host cells, A31 (BALB/3T3 clone A31 fibroblasts), caused by two intracellular protozoan parasites, Toxoplasma gondii and Neospora caninum, were carried out in an in vitro system. The viability of N. caninum-infected cells was significantly reduced following treatment w...

journal_title：Parasite immunology

authors： Nishikawa Y,Makala L,Otsuka H,Mikami T,Nagasawa H

更新日期：2002-07-01 00:00:00

abstract：:Trypanosoma congolense is one of the main species responsible for Animal African Trypanosomosis (AAT). As preventive vaccination strategies for AAT have been unsuccessful so far, investigating the mechanisms underlying vaccine failure has to be prioritized. In T. brucei and T. vivax infections, recent studies revealed...

journal_title：Parasite immunology

authors： Obishakin E,de Trez C,Magez S

更新日期：2014-05-01 00:00:00

abstract：:We have characterized various anti-schistosomular surface MoAbs previously shown to partially block in-vitro killing of schistosomula by human sera and eosinophils (Dunne et al. 1987). Immunodiffusion analysis showed that four IgM and one IgG3 MoAbs recognized periodate sensitive epitopes on the same molecular species...

journal_title：Parasite immunology

authors： Bickle QD,Andrews BJ

更新日期：1988-03-01 00:00:00

abstract：AIMS:Industrial growth has increased the exposure to endocrine disruptor compounds (EDCs) in all organisms. Bisphenol A (BPA), an EDC, has been demonstrated to be involved in the susceptibility to parasite infections. However, few studies have analysed this connection in more depth. The aim of this study was to determi...

journal_title：Parasite immunology

authors： Nava-Castro KE,Togno-Peirce C,Palacios-Arreola MI,Del Rio-Araiza VH,Hernandez-Bello R,Morales Montor J

更新日期：2020-09-01 00:00:00

abstract：:Resistance to S. mansoni cercarial challenge, induced by prior infection of rats with cercariae, is analysed by substitution of alternatives to the primary cercarial exposure. Intravenous injections of either live or killed 4-week stage worms have been examined, utilizing two different routes of injection, one or two ...

journal_title：Parasite immunology

authors： Knopf PM,Spitalny KC,Dang A

更新日期：1984-03-01 00:00:00

abstract：:The variant surface glycoprotein (VSG) coat of African trypanosomes exhibits immunobiological functions distinct from its prominent role as a variant surface antigen. In order to address questions regarding immune stealth effects of VSG switch-variant coats, and the innate immune system activating effects of shed VSG ...

journal_title：Parasite immunology

authors： Mansfield JM,Paulnock DM

更新日期：2008-04-01 00:00:00

abstract：:The in vitro binding serum complement (C) components to Schistosoma mansoni worms was studied. By exposing frozen sections of adult male and female parasites to normal human serum, binding of both classical and alternative pathway C components was observed. By immunofluorescence (IFL) microscopy selective binding of C...

journal_title：Parasite immunology

authors： Linder E,Huldt G

更新日期：1983-03-01 00:00:00

abstract：:During African trypanosomiasis, macrophages play a central role in T cell hyporesponsiveness to parasite-related and unrelated antigens. In this study, the ability of macrophages from Trypanosoma b. brucei-infected mice to present exogenous antigens to a major histocompatibility complex (MHC) class II-restricted CD4+ ...

journal_title：Parasite immunology

authors： Namangala B,Brys L,Magez S,De Baetselier P,Beschin A

更新日期：2000-07-01 00:00:00

abstract：:CD4(+) T cells respond to antigen immunization through a process of activation, clonal expansion to generate activated effector T cells followed by activation-induced clonal deletion of the responding T cells. While loss of responding T cells in post-activation death by apoptosis is a major factor regulating immune ho...

journal_title：Parasite immunology

authors： Mukherjee P,Devi YS,Chauhan VS

更新日期：2008-10-01 00:00:00

abstract：:Very little has been reported comparing resistance to coccidiosis in fast or slow growing broilers, the latter of which are becoming more prevalent in the broiler industry. We examined mRNA expression in the intestines of fast and slow growing broilers following Eimeria infection. We show that by day 13 post-infection...

journal_title：Parasite immunology

authors： Giles T,Sakkas P,Belkhiri A,Barrow P,Kyriazakis I,Foster N

更新日期：2019-09-01 00:00:00

abstract：:Inhibitory monoclonal antibody (MoAb) 8E7/55 recognizes a parasitophorous vacuole membrane (PVM) antigen in Plasmodium falciparum. Previous studies have identified the epitope, DNNLVSGP, recognized by the MoAb. A synthetic peptide containing this sequence was synthesized and coupled to diphtheria toxoid (DT) and was f...

journal_title：Parasite immunology

authors： Lord R,Jones GL,Spencer L,Saul A

更新日期：1993-11-01 00:00:00

abstract：:Naegleria fowleri, a free-living amoeba, is the causative pathogen of primary amoebic meningoencephalitis in humans and experimental mice. N. fowleri is capable of destroying tissues and host cells through lytic necrosis. However, the mechanism by which N. fowleri induces host cell death is unknown. Electron microscop...

journal_title：Parasite immunology

authors： Song KJ,Jang YS,Lee YA,Kim KA,Lee SK,Shin MH

更新日期：2011-07-01 00:00:00

abstract：:Changes in phagocytic and adherent cell numbers were compared during the course of infections of mice with Plasmodium yoelii (Py) and P. berghei (Pb) and in vaccinated mice challenged with homologous parasites. Nucleated cells in the spleen increased in number in Py-infected mice and were maximal at the time of recove...

journal_title：Parasite immunology

authors： Lelchuk R,Taverne J,Agomo PU,Playfair JH

更新日期：1979-04-01 00:00:00

abstract：:Humoral immunity develops in the spleen during blood-stage Plasmodium infection. This elicits parasite-specific IgM and IgG, which control parasites and protect against malaria. Studies in mice have elucidated cells and molecules driving humoral immunity to Plasmodium, including CD4+ T cells, B cells, interleukin (IL)...

journal_title：Parasite immunology

authors： Sebina I,Fogg LG,James KR,Soon MSF,Akter J,Thomas BS,Hill GR,Engwerda CR,Haque A

更新日期：2017-10-01 00:00:00

abstract：:The course of primary infections with Nippostrongylus brasiliensis was followed in nude (CBH/R nu/nu) and heterozygote (CBH/R nu/+) rats. In both nude and heterozygote rats peak egg production by N. brasiliensis occurred on days 7 and 8 post-infection. However, whereas in heterozygote rats egg production declined rapi...

journal_title：Parasite immunology

authors： Smith NC,Ovington KS,Bryant C

更新日期：1991-11-01 00:00:00

abstract：:The previously observed MHC-restriction of the antibody response to an 86kDa S. mansoni antigen has been investigated in more detail. The I-A locus of the H-2 complex has been implicated as conferring responder or non-responder status on mice expressing the k and b alleles respectively. Inheritance of responsiveness w...

journal_title：Parasite immunology

authors： Schweitzer AN,Taylor DW

更新日期：1991-05-01 00:00:00

abstract：:Attempts to produce monoclonal antibodies specific for a parasite-encoded or induced antigen on the surface of Theileria parva lawrencei-transformed bovine lymphocytes resulted in the identification of the monoclonal antibody J7. This antibody recognizes a membrane glycoprotein on some T.p. lawrencei-infected bovine l...

journal_title：Parasite immunology

authors： Newson J,Naessens J,Stagg DA,Black SJ

更新日期：1986-03-01 00:00:00

abstract：:The anti-leishmanial effect of the 'carbohydrate-fraction', isolated from an edible mushroom Astraeus hygrometricus, was evaluated against Leishmania donovani infection both in vitro and in vivo. Ahf-Car induced the expression of inducible nitric oxide synthase 2 (iNOS2) and pro-inflammatory cytokines like TNF-α and I...

journal_title：Parasite immunology

authors： Hussain A,Ghosh S,Roy K,Nath S,Sarkar B,Dutta A,Maji P,Basu S,Paul S,Dey S,Chakraborty K,Raychaudhury B,Acharya K,Ganguly J,Pal C

更新日期：2020-10-31 00:00:00

abstract：:Impairment of T cell proliferation in mice infected with the pleomorphic Trypanosoma brucei AnTat 1.1 E clone was found not to be related to a depletion of T cells or to an absence of functional accessory cells, but rather to an active suppression of interleukin 2 (IL-2) production. Lymph node cells derived from infec...

journal_title：Parasite immunology

authors： Sileghem M,Hamers R,De Baetselier P

更新日期：1986-11-01 00:00:00