樹木花粉と鼻アレルギー (第5報) 和歌山県下50市町村におけるスギIgE RASTによる疫学的調査
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概要
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In order to understand the actual state of Japanese cedar pollinosis in all cities, towns and villages in Wakayama Prefecture, 30 serum samples were randomly collected from each of 50 municipalities of Wakayama Prefecture for investigating the frequency of sera giving positive RASTs to Japanese cedar. The results were as follows. 1. Unlike juniper or mite, the frequency of positive RASTs to Japanese cedar reached a peak in their twenties. The frequency of RAST positive subjects decreased with increasing age. 2. The frequency of subjects who showed Japanese cedar-specific IgE by RAST varied in different municipalities. As a whole, the frequency was high in the mountainous regions and low in the coastal regions. It was high in the southern part of the prefecture, so-called Kinan District. 3. The frequency of subjects with positive RASTs to Japanese cedar was positively correlated with the area of Japanese cedar grove and with the total area of Japanese cedar and Japanese cypress groves in cities, towns or villages. 4. The relation between positive RAST reactions and weather conditions was investigated. In coastal regions where there were many RAST positive subjects, the wind blew most frequently from the mountain side in February through April. There was no relation between the sunshine duration or mean atmospheric temperature and the frequency of positive RAST reactions to Japanese cedar. Subjects giving positive RAST reactions were frequently seen in places where the mean wind velocity was high (January, April, May, June, August, September, October) and where the quantity of precipitation was large (February, March, April, July, December).
- 一般社団法人 日本耳鼻咽喉科学会の論文