| [clinical and immunological analysis of birch pollenosis]. | in recent years, the number of cases birch pollenosis has increased, but there have been very few reports, and therefore we decided to carry on this clinical and immunological analysis as follows. (1) statistical analysis of birch pollenosis patients who visited the department of otorhinolaryngology of hokkaido university school of medicine, sapporo. (2) study of atmospheric birch pollen counts and investigation of the relationship between the incidence of pollenosis and pollen count. (3) allerg ... | 1994 | 7705751 |
| [analysis of antigenic peptides obtained from japanese birch pollen]. | allergic rhinitis caused by birch pollen is common in parts of northern europe, north america and the northern japanese island of hokkaido. the major antigenic fragment of european birch (betula verrucosa) pollen allergen with a m. w. of 17k dalton was isolated and termed bet vi. the amino acid sequence of bet vi has already been identified. we have attempted to identify an antigenic peptide of japanese birch (betula platyphylla var. japonica) pollen allergen. seventeen kd fragments separated fr ... | 1994 | 8169732 |
| [a relationship between birch pollen and meteorological factors during the past four years and pollen survey in sapporo in 1997]. | it is well known that grass pollinosis has been the most representative pollinosis in hokkaido prefecture, japan, however, it is also well known that birch (japanese white birch, betula platyphylla var. japonica) pollinosis is gradually increasing, which is marked especially in sapporo and its neighborhood. we analyzed a relationship between the birch pollen count and meteorological factors statistically. moreover, the principal airborne pollen counts in sapporo in 1997 were assessed and compare ... | 1999 | 10481357 |