このエントリーをはてなブックマークに追加
ID 42963
FullText URL
Thumnail 66_883.pdf 195 KB
Title Alternative
On the effects of X-irradiation upon enzyme activity On accumulative action of X-rays
Author
Imamura, Shizuo
Abstract
Previously the author carried out experiments on the effects of X-irradiation upon enzyme activity and found that X-irradiation with small doses increases catalytic activity of enzyme, that middle doses inhibits, and what is influenced by X-rays is enzyme itself and not the substrate. Therefore, in order to clarify whether catalytic activity might be increased additionally, or be accumulated gradually until it might have inhibited the enzyme action as well as one middle dose, in case it has reached one middle dose by repeating several small doses with certain interval, so that it should reach irradiation due to one middle dose or not, using papayotin as an enzyme, gelatin as a substrate and the amount of non-protein nitrogen which increased by the gelatin decomposition, was measured. Then the author assured that when irradiation with small doses reached to middle dose by fractional irradiation same as one time of irradiation with middle doses enzyme action was inhibited and X-irradiation accumulated gradually within enzyme.
Published Date
1954-05-31
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume66
Issue
issue5
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
883
End Page
885
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/66/5/66_5_883/_article/-char/ja/
language
日本語
Copyright Holders
Copyright© 岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma