OXIDATIVE STRESS BY SE-DEFICIENCY AND DYNAMICS OF BIOTRACE ELEMENTS
Project/Area Number |
17590040
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Physical pharmacy
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Research Institution | Showa Pharmaceutical University |
Principal Investigator |
ENDO Kazutoyo Showa Pharmaceutical University, DEPT. OF PHARMACY, PROFESSOR (50106598)
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Co-Investigator(Kenkyū-buntansha) |
HONDA Chikako SHOWA PHARMACUETICAL UNIVERSITY, DEPT. OF PHARMACY, Associate Professor (00199572)
MATSUOKA Keisuke SHOWA PHARMACUETICAL UNIVERSITY, DEPT. OF PHARMACY, RESEARCH ASSOCIATE (90384635)
ENOMOTO Shuichi RIKEN, 加速器基盤研究部, REASERCH FELLOW (10271553)
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Project Period (FY) |
2005 – 2007
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Project Status |
Completed (Fiscal Year 2007)
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Budget Amount *help |
¥3,680,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥180,000)
Fiscal Year 2007: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2005: ¥2,300,000 (Direct Cost: ¥2,300,000)
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Keywords | TRECE EMEMENT / SE-DEFICIENCY / OXIDATIVE STRESS / ESR / GSH-Px / RATS / ROS / 生体微量元素 / Se-欠乏ラット / 肝ミクロソーム / ESR-スピンプローブ / X-バンドESR / 非侵襲測定 / 低線量β線照射 / Se-欠乏 / ニトロキシスピンプローブ |
Research Abstract |
1) In vivo free radical reactions in rat liver as a result of exposure to low-dose β-radiation was evaluated with electron paramagnetic resonance (EPR) spectroscopy by monitoring the reduction of the nitroxyl spin probe after intravenous administration. Results suggest that under low levels of tissue oxygen, exposure to β-rays results in nitroxyl signal loss, which may be mediated by free radical dependent pathways. 2) Biochemical data of AST, ALT, and BUN for the plasma fraction of the rat bloods, and the concentration of vitamin C and vitamin E were measured in the liver homogenates. The relationships among the biotrace elements and the biochemical data were compared, and the indices for oxidative stress caused by selenium deficiency were discussed in terms of reactive oxygen species (ROS) , and antioxidants in the organism. 3) Free radical-reducing activity and membrane fluidity of liver microsomes from Se-deficient (SeD) Wistar rats were examined by EPR spin label method using nitrox
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yl-labeled stearic acids. SeD induced the liver microsomal cytochrome P 450 activity ; the nitroxyl spin probes are substrates for reduction-relating cytochrome P 450. The reduction rate of nitroxyl radical at shallow depth in membranes was increased. 4) Although the oxidative stress caused Fe accumulation in the liver, the Fe concentration in bile of the SeD rat was almost the same as that in the control rats. Due to the trapping of reactive oxygen species, only bilirubin concentrations in the bile and plasma were decreased in the SeD group, when compared with those in the control group. Measurement of bilirubin concentration may be used as a supplemental oxidative stress marker. 5) Dynamics of redox relating biotrace elements, selenium, iron, and zinc in liver, kidney, and spleen of selenium deficient Wistar male rats in a series of feeding period (from 0 to 8 weeks) were studied using instrumental neutron activation analysis. The results were compared with those of aspartate aminotransferase (AST) , alanine aminotransferase (ALT) , and blood urea nitrogen (BUN) for the plasma fraction of the rat bloods. Less
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Report
(4 results)
Research Products
(27 results)
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[Journal Article] Changes in the components of biliary and plasma lipids in selenium-deficient rats2007
Author(s)
Yasunobu, Sakuma, Junya Sasaki, Aya, Futami, Kousuke, Yamasaki, Keisuke, Matsuoka, Chikako, Honda, Kazutoyo, Endo, Masamichi, Tsukada
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Journal Title
Chem. Phys. Lipids 148(2)
Pages: 70-76
Description
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[Journal Article] Feeding period of selenium-deficient diet and response of redox relating minerals2006
Author(s)
Matsumoto, Ken-ichiro;Ariyoshi, Marie;Terada, Sachiyo;Okajo, Aya;Urata, Hiromi;Sakuma, Yasumobu;Satoh, Kazue;Ushio, Fusao;Tsukada, Masamichi;Endo, Kazutoyo
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Journal Title
J.Health Scie 52
Pages: 694-702
NAID
Description
「研究成果報告書概要(和文)」より
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Peer Reviewed
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[Journal Article] Feeding period of selenium-deficient diet and response of redox relating minerals2006
Author(s)
Matsumoto, Ken-ichiro, Ariyoshi, Marie, Terada, Sachiyo, Okajo, Aya, Urata, Hiromi, Salcuma, Yasunobu, Satoh, Kazue, Ushio, Fusao, Tsukada, Masamichi, Endo, Kazutoyo
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Journal Title
J. Health Sci 52(6)
Pages: 694-702
NAID
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Electron paramagnetic resonance decay constant and oxidative stresses in liver microsomes of the selenium-deficient rat2006
Author(s)
Matsumoto, Ken-ichiro, Suzuki, Ayako, Washimi, Haruka, Hisamatsu, Atsushi, Okajo, Aya, Ui, Iori, Endo, Kazutoyo
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Journal Title
J.Nutr. Biochem 17(10)
Pages: 677-681
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Feeding period of selenium-deficient diet and response of redox relating minerals2006
Author(s)
Matsumoto, Ken-ichiro, Ariyoshi, Marie, Terada, Sachiyo, Okajo, Aya, Urata, Hiromi, Sakuma Yasunobu, Satoh Kazue, Ushio, Fusao, Tsukada, Masamichi, Endo, Kazutoyo
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Journal Title
J. Health Scie. 52(6)
Pages: 694-702
NAID
Related Report
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[Journal Article] Electron paramagnetic resonance decay constant and oxidative stresses in liver microsomes of the selenium-deficient rat2006
Author(s)
Matsumoto, Ken-ichiro, Suzuki, Ayako, Washimi, Haruka, Hisamatsu, Atsushi, Okajo, Aya, Ui, Iori, Endo, Kazutoyo
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Journal Title
J. Nutr. Biochem 17(10)
Pages: 677-681
Related Report
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[Journal Article] Estimation of free radical formation by β-ray irradiation in rat liver2005
Author(s)
Matsumoto, Ken-ichiro, Okajo, Aya, Kobayashi, Takenori, Mitchell, James B., Krishna, Murali, C., Endo, kazutoyo
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Journal Title
J.Biochem.Biophys.Meth 63(2)
Pages: 79-90
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Correlation between Ketone body level in selenium-deficient rats and oxidative damages2005
Author(s)
Matsumoto, Ken-ichiro, Takuwa, Aid, Takenori, Akemi, Ui, Iori, Okajo, Aya, Endo, Kazutoyo
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Journal Title
Biol.Pharm.Bull 28(7)
Pages: 1142-1147
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Correlation between Ketone body level in selenium-deficient rats and oxidative damages.2005
Author(s)
Matsumoto, Ken-ichiro, Takuwa, Aki, Terashi, Akemi, Ui, Iori, Okajo, Aya, Endo, Kazutoyo.
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Journal Title
Biolo. Pharm. Bull. 28(7)
Pages: 1142-1147
Related Report
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[Journal Article] Estimation of free radical formation by β-ray irradiation in rat liver.2005
Author(s)
Matsumoto, Ken-ichiro, Okajo, Aya, Kobayashi, Takenori, Mitchell, James B., Krishna, Murali C., Endo, Kazutoyo.
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Journal Title
J. Biochem. Biophys. Meth. 63(2)
Pages: 79-90
Related Report
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[Presentation] Dynamics of redox related elements(Fe, Co, Zn and Se) and oxidative stress caused by Se-deficiency in rats2007
Author(s)
Y., Sakuma, K., Matsuoka, C., Honda, K., Matsumoto, K., Endo
Organizer
12 th Int. Conf.'Moden trends activation analysis(MTAA-12) Hachiohji
Description
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