Biomaterial Database

Sensitivity to Parietaria officinalis and Parietaria judaica pollen allergens in a Spanish population. 1986

S Dreborg, and A Basomba, and R Einarsson

To investigate the biological activity of P. judaica and P. officinalis allergen preparations, 36 Spanish patients were included in a biological standardization (BS) trial. For both species the concentration corresponding to 1000 biological units/ml (BU/ml) was found to be about 2 micrograms dry weight/ml (d.w./ml). The allergenic activity per microgram d.w. was about the same as reported for other important weed pollen extracts. The physico-chemical and immunological properties of the purified Parietaria judaica and Parietaria officinalis pollen allergen preparations used for biological standardization were investigated. The protein content was determined to 38% and 23% for P. judaica and P. officinalis respectively, while the carbohydrate content was 25% in both weed preparations. More than 40 antigens and at least 10 different allergens were detected by crossed immuno electrophoresis/crossed radio immunoelectrophoresis (CIE/CRIE) analyses. SDS-gPAGE followed by electroblotting showed important allergens between 10,000 and 75,000 d for both species. The crossreactivity as measured by skin prick test, RAST and CRIE was high.

UI	MeSH Term	Description	Entries
D006967	Hypersensitivity	Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.	Allergy,Allergic Reaction,Allergic Reactions,Allergies,Hypersensitivities,Reaction, Allergic,Reactions, Allergic
D007123	Immunoelectrophoresis, Two-Dimensional	Immunoelectrophoresis in which a second electrophoretic transport is performed on the initially separated antigen fragments into an antibody-containing medium in a direction perpendicular to the first electrophoresis.	Immunoelectrophoresis, Crossed,Immunoelectrophoresis, 2-D,Immunoelectrophoresis, 2D,2-D Immunoelectrophoresis,2D Immunoelectrophoresis,Crossed Immunoelectrophoresis,Immunoelectrophoresis, 2 D,Immunoelectrophoresis, Two Dimensional,Two-Dimensional Immunoelectrophoresis
D007428	Intradermal Tests	Skin tests in which the sensitizer is injected.	Passive Transfer Test,Prausnitz-Kustner Test,Intradermal Test,Passive Transfer Tests,Prausnitz Kustner Test,Test, Intradermal,Test, Passive Transfer,Test, Prausnitz-Kustner,Tests, Intradermal,Tests, Passive Transfer
D010940	Plant Proteins	Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available.	Plant Protein,Protein, Plant,Proteins, Plant
D010944	Plants	Multicellular, eukaryotic life forms of kingdom Plantae. Plants acquired chloroplasts by direct endosymbiosis of CYANOBACTERIA. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alternation of haploid and diploid generations. It is a non-taxonomical term most often referring to LAND PLANTS. In broad sense it includes RHODOPHYTA and GLAUCOPHYTA along with VIRIDIPLANTAE.	Plant
D011058	Pollen	The fertilizing element of plants that contains the male GAMETOPHYTES.	Male Gametes, Plant,Male Gametophytes,Microspores, Plant,Plant Microspores,Pollen Grains,Gamete, Plant Male,Gametes, Plant Male,Gametophyte, Male,Gametophytes, Male,Grain, Pollen,Grains, Pollen,Male Gamete, Plant,Male Gametophyte,Microspore, Plant,Plant Male Gamete,Plant Male Gametes,Plant Microspore,Pollen Grain
D011852	Radioallergosorbent Test	An in vitro allergen radioimmunoassay in which allergens are coupled to an immunosorbent. The coupled allergens bind the IgE in the sera of patients which in turn binds radioisotope-labeled anti-IMMUNOGLOBULIN E antibodies.	Radioimmunosorbent Assay of Allergens,Allergens Radioimmunosorbent Assay,Allergens Radioimmunosorbent Assays,Radioallergosorbent Tests,Test, Radioallergosorbent,Tests, Radioallergosorbent
D012015	Reference Standards	A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy.	Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D003429	Cross Reactions	Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen.	Cross Reaction,Reaction, Cross,Reactions, Cross
D004306	Dose-Response Relationship, Immunologic	A specific immune response elicited by a specific dose of an immunologically active substance or cell in an organism, tissue, or cell.	Immunologic Dose-Response Relationship,Relationship, Immunologic Dose-Response,Dose Response Relationship, Immunologic,Dose-Response Relationships, Immunologic,Immunologic Dose Response Relationship,Immunologic Dose-Response Relationships,Relationship, Immunologic Dose Response,Relationships, Immunologic Dose-Response