نتایج جستجو برای: pollen allergen

تعداد نتایج: 31448  

2017
Meena Narayanan Raphaela Freidl Margarete Focke-Tejkl Ulrike Baranyi Thomas Wekerle Rudolf Valenta Birgit Linhart

More than 40% of allergic patients suffer from grass pollen allergy. Phl p 1, the major timothy grass pollen allergen, belongs to the cross-reactive group 1 grass pollen allergens that are thought to initiate allergic sensitization to grass pollen. Repeated allergen encounter boosts allergen-specific IgE production and enhances clinical sensitivity in patients. To investigate immunological mech...

Journal: :iranian journal of allergy, asthma and immunology 0
maryam sharif shoushtari immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran and department of biology, faculty of biology science, islamic azad university, north tehran branch, iran ahmad majd department of biology, faculty of biology science, islamic azad university, north tehran branch, iran zahra pourpak immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran and department of immunology and allergy, children medical center, tehran university of medical sciences, tehran, iran youcef shahali laboratoire “sciences analytiques, bioanalytiques et miniaturisation”, espci paristech, umr 7195 cnrs, 75231 paris cedex 05, france mostafa moin immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran and department of immunology and allergy, children medical center, tehran university of medical sciences, tehran, iran mohammad bagger eslami department of pathobiology, immunology division, school of public health, tehran university of medical sciences, tehran, iran

weed pollen grains belonging to  the  asteraceae  family contain  a variety of  allergens inducing type i  and iv allergies in susceptible people. the  aim of this research was to compare  the  allergenic properties  of  immature  and  mature  shasta  daisy pollen  grains (chrysanthemum maximum ramond) to define the potential role of the maturation process on the allergenicity of asteraceae pol...

Journal: :iranian journal of allergy, asthma and immunology 0
nannan jiang department of allergy; peking :union: hospital; peking :union: medical college & chinese academy of medical science, china. jia yin department of allergy; peking :union: hospital; peking :union: medical college & chinese academy of medical science, china. philip mak department of biology, johns hopkins university, usa. liping wen department of allergy; peking :union: hospital; peking :union: medical college & chinese academy of medical science, china.

orchard workers in north china are highly exposed to orchard pollens, especially peach and other rosaceae family pollens during pollination season. the aim of this study was to investigate whether occupational allergy to peach tree pollen as a member of rosaceae family is ige-mediated and to evaluate the cross-reactivity among rosaceae family pollens. allergen skin test and conjunctival challen...

Journal: :iranian journal of allergy, asthma and immunology 0
giorgio ciprandi department of internal medicine, azienda ospedaliera universitaria san martino, genoa, italy mara de amici pediatric clinic- university of pavia-foundation irccs san matteo, pavia, italy mariangela tosca pneumology and allergy unit, istituto giannina gaslini, genoa, italy roberta alesina pneumology, foundation irccs san matteo, pavia, italy gianluigi marseglia pediatric clinic- university of pavia-foundation irccs san matteo, pavia, italy dietmar fuchs division of biological chemistry, biocenter, innsbruck medical university, innsbruck, austria

allergic rhinitis (ar) is a very frequent disease which is not only characterized by nasal symptoms, but also with behavioural changes. this study evaluated the serum serotonin levels in patients with pollen-induced ar during and outside the pollen season. one-hundred-two  (56 females, 46 males, median age: 28.7 years) were included in this study: 56 with seasonal ar (sar) evaluated outside the...

Journal: :International archives of allergy and immunology 2017
Ulbosin Saltabayeva Victoria Garib Marina Morenko Rafail Rosenson Zhanat Ispayeva Madina Gatauova Loreta Zulus Alexander Karaulov Felix Gastager Rudolf Valenta

BACKGROUND Allergen molecule-based diagnosis has been suggested to facilitate the identification of disease-causing allergen sources and the prescription of allergen-specific immunotherapy (AIT). The aim of the current study was to compare allergen molecule-based IgE serology with allergen extract-based skin testing for the identification of the disease-causing allergen sources. The study was c...

Journal: :Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology 2008
C Egger M Focke A J Bircher K Scherer N Mothes-Luksch F Horak R Valenta

BACKGROUND Beech and oak pollen are potential allergen sources with a world-wide distribution. OBJECTIVE We aimed to characterize the allergen profile of beech and oak pollen and to study cross-reactivities with birch and grass pollen allergens. METHODS Sera from tree pollen-allergic patients with evidence for beech and oak pollen sensitization from Basel, Switzerland, (n=23) and sera from ...

Journal: :Journal of immunology 2015
Birgit Linhart Margarete Focke-Tejkl Milena Weber Meena Narayanan Angela Neubauer Hannes Mayrhofer Katharina Blatt Christian Lupinek Peter Valent Rudolf Valenta

More than 10% of the population in Europe and North America suffer from IgE-associated allergy to grass pollen. In this article, we describe the development of a vaccine for grass pollen allergen-specific immunotherapy based on two recombinant hypoallergenic mosaic molecules, designated P and Q, which were constructed out of elements derived from the four major timothy grass pollen allergens: P...

Journal: :The Journal of allergy and clinical immunology 2008
James N Francis Louisa K James Giannis Paraskevopoulos Cheukyee Wong Moises A Calderon Stephen R Durham Stephen J Till

BACKGROUND Grass pollen immunotherapy is an effective treatment for seasonal allergic rhinitis that provides the opportunity to study the induction and maintenance of allergen-specific immune tolerance. OBJECTIVES We investigated the relationship between clinical responsiveness, regulatory cytokine production, and antibody responses to allergen during 1 year of immunotherapy. METHODS Eighte...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
V Niederberger F Horak S Vrtala S Spitzauer M-T Krauth P Valent J Reisinger M Pelzmann B Hayek M Kronqvist G Gafvelin H Grönlund A Purohit R Suck H Fiebig O Cromwell G Pauli M van Hage-Hamsten R Valenta

IgE-mediated allergy affects >25% of the population in industrialized countries. Repeated contact with the disease-eliciting allergens induces rises of allergen-specific IgE Abs and progression of the disease to more severe manifestations. Our study uses a type of vaccine that is based on genetically modified allergen derivatives to treat allergic patients. We developed hypoallergenic derivativ...

Journal: :reports of biochemistry and molecular biology 0
leila roozbeh nasiraie department of food science and technology, ferdowsi university of mashhad, mashhad, iran farideh tabatabaie department of food science and technology, ferdowsi university of mashhad, mashhad, iran mojtaba sankian immunobiochemistry lab, immunology research center, school of medicine, mashhad university of medical sciences, mashhad, iran fakhri shahidi department of food science and technology, ferdowsi university of mashhad, mashhad, iran abdolreza varasteh tel: +98 511-7112611; fax: + 98 511-7112596

background: during the last two decades, significant advances have been made in the fields of lactococcal genetics and protein expression. lactococcus lactis (l. lactis) is an effective vector for protein expression and can be used as an antigen delivery system. hence, l. lactis is an ideal candidate for mucosal immunotherapy. profilin (che a 2), the major allergen in chenopodium album, is one ...

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