著者

Masami INADA Shigeya WATANABE Yoshio WAKATSUKI Hiroyuki KUDO Motonobu MURAKAMI Takeo MIYAKE

出版者

SOCIETY FOR FREE RADICAL RESEARCH JAPAN

雑誌

Journal of Clinical Biochemistry and Nutrition (ISSN:09120009)

巻号頁・発行日

vol.3, no.3, pp.201-207, 1987 (Released:2010-02-25)

参考文献数

5

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Effect of administration of active vitamin D3 on the histological changes of intestinal mucosa was studied in normal rats treated with 0.25 to 0.5μg of 1α(OH)D3 or 1α, 25(OH)2D3. Mucosal thickness, cell count and volume, mucosal mass, and nuclear size were morpho-metrically measured in the villi and crypts. In the villi, both 1α(OH)D3 and 1α, 25(OH)2D3 significantly increased the cell counts, moderately increased the thickness, and slightly increased the cell volume, compared with the control group. Neither agent had any effect on the crypts. Nuclear size in villi was increased only in the 1α, 25(OH)2D3 group.

著者

Yuta SATO Takahiro OKOSHI Daishi TAKAHASHI Takahiro ARAKAWA Hiroyuki KUDO Kohji MITSUBAYASHI

出版者

Society of Advanced Science

雑誌

Journal of Advanced Science (ISSN:09155651)

巻号頁・発行日

vol.22, no.1+2, pp.7-8, 2010 (Released:2010-09-02)

参考文献数

1

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A novel chemo-mechanical pressure control system for pumping applications was constructed and tested. The pressure control system utilizes direct conversion of chemical energy to mechanical energy by enzymatic reactions. In order to construct the system, glucose oxidase (GOD) and catalase (CAT) were immobilized onto a dialysis membrane with photosensitive resin. The enzyme immobilized membrane was functioned as a diaphragm of a reaction unit. Therefor, the reaction unit was divided into a top cell (gas phase) and a bottom cell (liquid phase). Characterization of the pressure control system was carried out by supplying hydrogen peroxide and glucose solution into the liquid cell, respectively. As a result, active pressure iincrease in the top cell induced by oxygen production due to decomposition of hydrogen peroxide and pressure decrease induced by oxygen consumption of GOD reaction. Thus, the pressure in the cell was successfully controlled by chemical energy. The possible application of the pressure controle system is a diaphragm pump which is driven with active pressure change.