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Arerugi. 2002 Aug;51(8):609-14.

[Identification of airborne pollen and airborne particles with pollen allergen (Cry j 1, Dac g) by aeroallergen immunoblotting technique].

[Article in Japanese]

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  • 1The Yamagata Prefectural Institute of Public Health.


After collection of airborne particles with a seven-day recording volumetric spore trap (Burkard model) using optically clear, pressure sensitive acrylic adhesive tapes, a dry PVDF membrane was pressed down firmly onto the adhesive tape, antigen-antibody reaction was performed in full contact with the tapes and PVDF membrane. Dark purple spots from airborne pollen allergens were examined under a light microscope to evaluate the form of pollens and particles wit h the antigenicity. It is clarified that identification of the form of pollens with the antigencity is possible not only pollens with the antigenicity but a pollen has already lost its shape, and it is also clarified that some airborne particular matters have the pollen antigencity. Airborne samples were collected during the Cryptomeria japonica or grass pollen season. Samples collected during the C. japonica pollen season were treated with anti-Cry j 1 monoclonal antibody, and those during the grass pollen season with anti-Dac g rabbit IgG. Samples collected during the C. japonica and the grass pollen peak season were treated with antibodies from sera of pollinosis patients. Spots originated not only from relevant pollen grains but also from parts of airborne particular matter have the pollen antigenicity and some spots could not observed for any kind of particles.

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