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ID 18423
Eprint ID
18423
フルテキストURL
Thumnail 74_757.pdf 2.99 MB
タイトル(別表記)
Studies on Histoplasma capsulatum Part 2. Comparative Studies of Histoplasma capsulatum Okayama-56 (Yamato) and American G-1456 Strains
著者
三村 宏二 岡山大学医学部第一内科教室
抄録
An attempt to compare the nature of yeast phase cultures of the two strains and hemagglutination test was made and the findings gained were as follows: 1. In the Japanese strain, the large form fungi werc predominant even on young cultures, and on the contrary, the culture of the American strain was composed of the small form organisms irrespective of the stage of growth. 2. The count of fungi on 3-day cultures attained to (5-6)×10(6)/mg, (9-10)×10(6)/mg in the Japanese and American strains respectively, and decreased gradually with the passage of time. 3. The ratio of viable cells on 3-day culturos was 76 per cent in the former strain and 65 per cent in the latter, and it decreased significantly with the passage of time, especially in the former strain. 4. The lethality of CF-1 mice interavenously inoculated with 1.0 mg of 3-day cultures was found to be 100 per cent in both strains, and when 7-day cultures are applied, no alteration was revealed in the American strain but it was as low as 20 per cent in the Japanese strain. No lethal case was induced by fortnight cultures of either one of the two strains. 5. The pathologic features produced were represented by productive and granulomatous inflammations in the reticulo-endothelial system, and distribution of the small form organism in the reticulo-endothelial cells was more distinguishable in the American strain than in the Japannse one. 6. The characteristic appearance of the experimental infection in mice was disemination of the small form organisms in the reticulo-endothelial system in both strains, but the large form ones were also seen in necrotic lesions of survived mice, and this incidence was more frequent in the Japanese strain. 7. The data obtained from hemagglutination tests suggested that the protein fraction might be common in both strains, and the polysaccharide fraction had somewhat strain-specificity. The above varieties proved were not always sufficient to differentiate the one from the other as it had been observed in isolated strains in the North America.
発行日
1962-09-30
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
74巻
8-9号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
757
終了ページ
772
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/74/8-9/74_8-9_757/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/
言語
Japanese
著作権者
岡山医学会
論文のバージョン
publisher
査読
有り
Eprints Journal Name
joma