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Iskalni niz: "ključne besede" (pollen) .

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1.
Art v 1 IgE epitopes of patients and humanized mice are conformational
Maja Zabel, Milena Weber, Bernhard Kratzer, Cordula Köhler, Beatrice Jahn-Schmid, Gabriele Gadermaier, Pia Gattinger, Urška Bidovec, Peter Korošec, Ursula Smole, Rudolf Valenta, Winfried F. Pickl, 2022, izvirni znanstveni članek

Povzetek: Background: Worldwide, pollen of the weed mugwort (Artemisia vulgaris) is a major cause of severe respiratory allergy, with its major allergen, Art v 1, being the key pathogenic molecule for millions of patients. Humanized mice transgenic for a human T-cell receptor specific for the major Art v 1 T-cell epitope and the corresponding HLA have been made. Objective: We sought to characterize IgE epitopes of Art v 1–sensitized patients and humanized mice for molecular immunotherapy of mugwort allergy. Methods: Four overlapping peptides incorporating surface-exposed amino acids representing the full-length Art v 1 sequence were synthesized and used to search for IgE reactivity to sequential epitopes. For indirect mapping, peptide-specific rabbit antibodies were raised to block IgE against surface-exposed epitopes on folded Art v 1. IgE reactivity and basophil activation studies were performed in clinically defined mugwort-allergic patients. Secondary structure of recombinant (r) Art v 1 and peptides was determined by circular dichroism spectroscopy. Results: Mugwort-allergic patients and humanized mice sensitized by allergen inhalation showed IgE reactivity and/or basophil activation mainly to folded, complete Art v 1 but not to unfolded, sequential peptide epitopes. Blocking of allergic patients’ IgE with peptide-specific rabbit antisera identified a hitherto unknown major conformational IgE binding site in the C-terminal Art v 1 domain. Conclusions: Identification of the new major conformational IgE binding site on Art v 1, which can be blocked with IgG raised against non-IgE reactive Art v 1 peptides, is an important basis for the development of a hypoallergenic peptide vaccine for mugwort allergy.
Ključne besede: mugwort pollen allergy, IgE epitope, allergen-specific immunotherapy
Objavljeno v DiRROS: 31.08.2022; Ogledov: 511; Prenosov: 204
URL Povezava na datoteko

2.
Differences in reporting the ragweed pollen season using Google Trends across 15 countries
Jean Bousquet, Ioana Agache, Uwe Berger, Karl-Christian Bergmann, Jean-Pierre Besancenot, Philippe J. Bousquet, Thomas Casale, Gennaro d'Amato, Igor Kaidashev, Musa Khaitov, Ralph Mösges, Kristof Nekam, Gabrielle L. Onorato, Davor Plavec, Aziz Sheikh, Michel Thibaudon, Robert Vautard, Mihaela Zidarn, 2018, pregledni znanstveni članek

Povzetek: Background: Google Trends (GT) searches trends of specific queries in Google, which potentially reflect the real-life epidemiology of allergic rhinitis. We compared GT terms related to ragweed pollen allergy in American and European Union countries with a known ragweed pollen season. Our aim was to assess seasonality and the terms needed to perform the GT searches and to compare these during the spring and summer pollen seasons. Methods: We examined GT queries from January 1, 2011, to January 4, 2017. We included 15 countries with a known ragweed pollen season and used the standard 5-year GT graphs. We used the GT translation for all countries and the untranslated native terms for each country. Results: The results of "pollen," "ragweed," and "allergy" searches differed between countries, but "ragweed" was clearly identified in 12 of the 15 countries. There was considerable heterogeneity of findings when the GT translation was used. For Croatia, Hungary, Romania, Serbia, and Slovenia, the GT translation was inappropriate. The country patterns of "pollen," "hay fever," and "allergy" differed in 8 of the 11 countries with identified "ragweed" queries during the spring and the summer, indicating that the perception of tree and grass pollen allergy differs from that of ragweed pollen. Conclusions: To investigate ragweed pollen allergy using GT, the term "ragweed" as a plant is required and the translation of "ragweed" in the native language needed.
Ključne besede: allergy and immunology, allergens, seasonal allergic rhinitis, rhinitis, pollen, ambrosia, Google Trends, hay fever
Objavljeno v DiRROS: 20.11.2020; Ogledov: 1156; Prenosov: 252
URL Povezava na datoteko

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