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ID 18645
Eprint ID
18645
FullText URL
72_1455.pdf 7.73 MB
Title Alternative
Influences of Electrical Stimulation (In Vitro) on the Metabolism of the Brain Part 2. Influences of Electrical Stimulation (in vitro) on the Cerebral Nitrogen Metabolism
Author
Kumashiro, Hisashi
Abstract
ダイコクネズミ大脳ホモジネート及び,大脳皮質切片に, in vitroで電気刺戟を加え,アンモニヤ発生に及ぼす影響をみた.その結果,ホモジネートでは,アンモニヤ発生の増加をみ,切片では,アンモエヤ発生の減少がみられた.所が切片では同時にグルタミン生成の促進もみられた. 従つて切片の場合のアンモニヤ発生の減少と云うのは,実は生成されるアンモニヤが,グルタミンとしてとらえられる事によるのではないかと推論した.従つて電気刺戟(in vitro)は大脳皮質切片のグルタミン合成系を促進すると云うことになる. このことは更に,アンモニウムイオンとグルタミン酸ソーダを基質とした実験においても確かめられた. 又,α-Keto glntaric acidとNH4Clからのグルタミン酸生成系に通電しても,これを促進せしめるようであつた.
Abstract Alternative
Using homogenates and slices of the cerebral cortex obtained from albino rats the author studied the influences of electrical stimulation (in vitro) on the formation of ammonia (NH(3)) and obtained the following results. In the case of homogenate an increase in the NH(3) production was observed while with slices a decrease. Howevar, in the case of slices an acceleration in the production of glutamine could also be recognized. Thus, it is assumed that in the case of the slices the decrease in the NH(3) production is in reality due to NH(3) being consumed in the processes of the glutamine production. Therefore, it can be said that the electrical stimulation (in vitro) accelerates the synthesis of glutamine in the cerebral cortex slice. This fact has been confirmed also by the experiments conducted with the additicn of NH(3) ion and sodium glutamate.
Published Date
1960-07-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume72
Issue
issue5-7
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
1455
End Page
1461
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/72/5-7/72_5-7_1455/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
Japanese
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma