Field work on nasal allergy II

• Published in: jibi to rinsho Vol. 44; no. 4Supplement3; pp. 644 - 666
• Main Authors: MIYOSHI, Akira, PENG, Jie-ren, CHENG, Jie-zhu, CHENG, Lei, YIN, Min, Xu, Qi-chang, YIN, Ming-de, You, Rong, TAGUCHI, Yoshio, CHEN, Ping, TSUKAHARA, Yasuo, KUNII, Osamu, CHOSA, Toru, SAHASHI, Norio, SHIRAKAWA, Taro, SAMBE, Takeyuki, UEDA, Nobuo, HISAMICHI, Shigeru, SHUI, Jin, RUAN, Biao, FANG, Run-gi
• Format: Journal Article
• Language: Japanese
• Published: JIBI TO RINSHO KAI 20.09.1998
• ISSN: 0447-7227; 2185-1034
• DOI: 10.11334/jibi1954.44.4Supplement3_644

It has been suggested that decreesive tendeucy of parasites may have caused the rapid increase in nasal allergies in Japan in recent years. In China investigations were carried out based on stool examinations, IgE antibody mesurements, and the number of eosinophil leukocytes. As a result, the following four factors became clear: The prevalence rate of nasal allergy is low. The parasitic infection rate is also not very high. Neither the serum IgE antibody value nor the number of the eosinophil leukocites tend to increase very much in cases of parasitic infection. In addition, in cases of parasitic infection, the number of positive responses to the allergen skin test is not so small. In addition to clinical cases, parasitic infection is not thought to necessary cause nasal allergy. Based on these findings there is little evidence to support the hypothesis that an increase in such infections after the Second world War have led to the increase in nasal allergy in Japan. Our findings suggest that the prevalence of nasal allergy appears to be due to an increase in the number of allergen. The increased number of cedar trees is known to have caused increased pollinosis in Japan and since the same tree species also exists in China, the presence of such cedar trees could possibly cause pollinosis in China in the future as well.