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9 results
Identification of the cysteine protease Amb a 11 as a novel major allergen from short ragweed.
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BACKGROUND
Allergy to pollen from short ragweed (Ambrosia artemisiifolia) is a serious and expanding health problem in the United States and in Europe.
OBJECTIVE
We sought to investigate the presence of undescribed allergens in ragweed pollen.
METHODS
Ragweed pollen proteins were submitted to
Protease activity of allergenic pollen of cedar, cypress, juniper, birch and ragweed.
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BACKGROUND
Pollen is an important trigger of allergic rhinitis, conjunctivitis, and/or asthma, and an exacerbating factor in atopic dermatitis. Although it is proposed that protease activity from allergen sources, such as mites, enhances allergenicity, little information is available on that from
Possible Involvement of Protease-Mediated Neutrophil Recruitment and Epithelial Barrier Disruption in Ragweed Pollen Sensitization.
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Reply: Protease Plays a Role in Ragweed Pollen-Induced Neutrophil Recruitment and Epithelial Barrier Disruption.
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Purification and characterization of a novel endopeptidase in ragweed (Ambrosia artemisiifolia) pollen.
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Ragweed (Ambrosia artemisiifolia), the major cause of late summer hay fever (allergic rhinitis) in the United States and Canada, is clinically the most important source of the seasonal aeroallergens. A novel endopeptidase was extracted from the pollen of this plant and purified by a series of column
Structural and Functional Characterization of the Major Allergen Amb a 11 from Short Ragweed Pollen.
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Allergy to the short ragweed (Ambrosia artemisiifolia) pollen is a major health problem. The ragweed allergen repertoire has been recently expanded with the identification of Amb a 11, a new major allergen belonging to the cysteine protease family. To better characterize Amb a 11, a recombinant
Effect of sweet wormwood Artemisia annua crude leaf extracts on some biological and physiological characteristics of the lesser mulberry pyralid, Glyphodes pyloalis.
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The lesser mulberry pyralid, Glyphodes pyloalis Walker (Lepidoptera: Pyralidae) is a monophagous and dangerous pest of mulberry that has been recently observed in Guilan province, northern Iran. In this study, the crude methanol extract of sweet wormwood Artemisia annua L. (Asterales: Asteracaea)
Mast cell chymase potentiates histamine-induced wheal formation in the skin of ragweed-allergic dogs.
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Skin mast cells release the neutral protease chymase along with histamine during degranulation. To test the hypothesis that chymase modulates histamine-induced plasma extravasation, we measured wheal formation following intradermal injection of purified mast cell chymase and histamine into the skin
IgE-binding trypsin inhibitors in plant pollen extracts.
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In an attempt to access the possible role of protease-antiprotease mechanisms of non-immune defence in pollinosis, only low levels of trypsin-, kallikrein- or plasmin-like proteinases could be detected in aqueous pollen extracts. In contrast, several pollen species displayed appreciable trypsin
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