The 7th International Mycological Congress

	2002年8月11日〜17日ノルウェー オスロにおいて標記学会が開催されました。 池川哲郎博士（JAIM常任理事）は本学会においてシンポジストとして出席。 演題No.164 Beneficial effects of edible mushrooms in Japan T.Ikekawa The aqueous extracts of edible mushrooms showed so high growth-inhibitory activity against solid sarcoma 180. Among many antitumor polysaccharides, a glucan from Lentinus edodes was used clinically as an injection of a narrow adaptation in Japan. However, substances having the antitumor activity by p.o. were a low molecular weight protein-bound polysaccharide from one of the most popular edible mushrooms, Flammulina velutipes. An epidemiological study in Nagano Prefecture, Japan indicated that the cancer death-rate of farmers producing F. Velutipes as a main occupation was remarkably lower than that of common peaple in the Prefecture. Another edible mushrooms,Hypsizygus marmoreus had also high antitumor activity and preventive effect for tumor metastasis. Cancer preventive effect of the mushrooms was proved by feed containing the dried fruitbodies and mice bred with an ordinary feed. The mechanism of cancer inhibitory and preventive activities of edible mushrooms was due to immunopotentiation and antioxidant activity. Thus, the intake of mushrooms proved to be effective in cancer prevention and growth-inhibition. Based on these results, proved to have a clinical effectiveness. It has been said in traditional Oriental medicine from the ancient times that Medicine and Food have the same origin. This is identical with our conclusion from mushroom-studies.