Search results for "Immunization"

Effects of Dextran Sulfate 500 on Cell-Mediated Resistance to Infection with Listeria monocytogenes in Mice.

1974

Injection of dextran sulfate 500 caused loss of antibacterial resistance. Mice became more susceptible to an infection with Listeria monocytogenes and were unable to develop antilisterial immunity after both active and passive immunization with passively administered spleen cells from Listeria -immune donors. Indirect evidence suggests that the phagocytic component of cell-mediated resistance to bacterial infection is the site of attack of dextran sulfate.

Real-world impact of rotavirus vaccination in European healthcare settings: a systematic literature review

2022

INTRODUCTION: Rotavirus is one of the most common pathogens causing diarrhea in children <5 years and has a major impact on childhood morbidity and mortality. Since the implementation of rotavirus vaccines into childhood immunization programs across Europe, there has been a reduction in rotavirus burden, including hospitalizations, outpatient cases, costs, and deaths. AREAS COVERED: A systematic literature review identified publications describing the clinical and economic impact of rotavirus vaccinations across Europe, from their introduction in 2006 to the end of 2020. A total of 3,137 articles were identified, of which 46 were included in the review. Included articles reported the impact…

Desarrollo de competencias profesionales en biomedicina utilizando el aprendizaje basado en proyectos

2019

[EN] Professional competences in the field of experimental sciences are acquired through the practice of professional practice. In the university environment, the knowledge, skills and abilities in the different undergraduate subjects are taught in a parceled manner. Our 45 students biotechnology studies in Catholic University of Valencia, during the internship repeat protolocos and follow a recipe to perform an experiment that exemplifies the fundamental contents of the subject being taught. The aboradaje of this work is based on project-based learning. The student has to elaborate a biotechnological project from beginning to end. The project is based on the construction of a non-viral vec…

Human interleukin 2: molecular biology, physiology and clinical possibilities.

1986

Interleukin 4 suppresses primary interferon gamma response by T cells immunized in vivo and cultured in vitro with interleukin 2.

1996

This paper describes a novel primary in vivo/in vitro culture system which allows analysis of the effect of IL-4 added to culture 1 day after immunization on the production of IFN-gamma. Mice are immunized epicutaneously with picryl chloride (TNP) and draining lymph node cells were harvested 1 day later. These cells (1 day lymph node cells), when cultured in vitro for 3 days in the presence of IL-2, either continuously or as a pulse, give an IFN-gamma response on reexposure to antigen 3 days later. This production of IFN-gamma is both antigen-specific and genetically (MHC)-restricted and is due to both CD8+ and CD4+ T cells. However, if 1 day lymph node cells are cultured with both IL-2 and…

Rotavirus 2/6 virus-like particles administered intranasally in mice, with or without the mucosal adjuvants cholera toxin and Escherichia coli heat-l…

2001

ABSTRACTWe investigated the rotavirus-specific lymphocyte responses induced by intranasal immunization of adult BALB/c mice with rotavirus 2/6 virus-like particles (2/6-VLPs) of the bovine RF strain, by assessing the profile of cytokines produced after in vitro restimulation and serum and fecal antibody responses. The cytokines produced by splenic cells were first evaluated. Intranasal immunization with 50 μg of 2/6-VLPs induced a high serum antibody response, including immunoglobulin G1 (IgG1) and IgG2a, a weak fecal antibody response, and a mixed Th1/Th2-like profile of cytokines characterized by gamma interferon and interleukin 10 (IL-10) production and very low levels of IL-2, IL-4, and…

Internationally adopted children: a new challenge for pediatricians.

2006

Children adopted from abroad by Italian families have increased during the last years. Since 2001 to 2004 they have been more than 10,000, mainly from Eastern Europe, and all indications suggest that they will continue to increase. Most of the internationally adopted children reside in orphanage before adoption where they may experience malnutrition, exposure to infectious diseases, environmental deprivation, neglect. Moreover, their pre-adoptive records are scarcely reliable and their immunization status is not always adequate. The most common long-term problems of internationally adopted children concern developmental and scholastic delay especially if they come from a long and severely d…

Generation of Cytotoxic T Lymphocytes Against Ly Alloantigen

2008

Cytotoxic T lymphocytes specific for immune alloantigens controlled by alleles of the Ly system have been induced in vivo. These results were obtained either in a secondary type of response or by treating mice before immunization with a single dose of cyclophosphamide (80 mg/kg).

The effectiveness of the suspension of mandatory vaccinations in Veneto Region (Northern Italy) lacks scientific evidence

2019

The effectiveness of the suspension of mandatory vaccinations in Veneto Region (Northern Italy) lacks scientific evidence

Epidermal Cells Enhance Interleukin 4 and Immunoglobulin E Production After Stimulation with Protein Allergen

1996

Exposure to certain allergens via epithelial tissues is the primary route for tile induction of immunoglobulin E–dependent allergies of the immediate type associated with atopic diseases. In order to address the question whether and how epithelial cells might contribute to the induction or increase of T H2 -dependent IgE production, we performed co-culture experiments of syngeneic epidermal cells and cells from the associated lymphoid tissue or spleen (responder cells) of BALB/c mice primed with ovalbumin in vivo . In the presence of ovalbumin in vitro , immunoglobulin E but not immunoglobulin G 2a production was significantly enhanced by the addition of epidermal cells, and separation of e…