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ID 19355
Eprint ID
19355
FullText URL
Thumnail 70_4357.pdf 406 KB
Title Alternative
Experimental Studies on the Iron Absorption Part 2. Correlation between Iron Absorption and the pH, Na⁺ and Cl⁻ in the Stomach
Author
Kubo, Toru
Abstract
As has been described in Part 1 the author revealed that the stomach has an active ability to absorb iron, but the absorption ceases at a certain period of time after the iron introduction, showing not and quantitative relation with the amount of iron introduced. In this paper the author reports the precise mechanism of iron in the stomach, with the mechanism of the eessasion of iron absorption at a certain period. In rabbits the stomachs were separated from the continuous digestive canals by the same method described in Part 1. After the iron introduction the pH level, Na⁺, Cl⁻ and iron in the stomach and iron level in blood serum were estimated quantitatively at fixed intervals. The results proved that pH level of the contents of stomachs rose rapidly after the iron introduction with the increase of the sodium ion, but chlorine ion also was found to increase with the similar rapidity. the iron contents in the stomach decreased as in the cases of Part 1 with an increase in the level of serum iron. The pH level reached a plateau after about 3 hours, mean value pH 4, where the iron absorption stopped. From these observations the author concluded that the absorption of iron in the stomach is closely related with the pH level in stomach, showing iron can be absorbed only in the pH level where the ionization of iron is possible. The cessation of iron-adsorption often occurring at a certain period is caused by an elevation of pH in the stomach. However, the mechanism of the elevation of pH level seen after the iron indtroduction remains unexplained, because the theoretical calculation proves that the increase of Na⁺ occurring after the iron introduction is nut sufficient to elevate the pH as to neutrize the concomitant increase of chlorine ion.
Published Date
1958-12-31
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume70
Issue
issue12
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
4357
End Page
4363
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/70/12/70_12_4357/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma