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Volume 70, Issue 9
Displaying 1-13 of 13 articles from this issue
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Shinichi NAGAOKAArticle type: Article
1996 Volume 70 Issue 9 Pages 413-422
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSKinetic studies of the antioxidant action of vitamin E derivatives have been carried out by means of stopped-flow spectroscopy and femtosecond spectroscopy. Both the electron transfer and the proton tunneling play important roles in the antioxidant reaction of vitamin E. The transition state has the property of the charge-transfer species. The proton tunneling takes place below the transition state. The tunneling allows the proton to cut a corner on the potential energy surface. Mechanism of the prooxidant reaction of vitamin E is also discussed.View full abstractDownload PDF (849K) -
Qing-Bai SHE, Takashi HAYAKAWA, Haruhito TSUGEArticle type: Article
1996 Volume 70 Issue 9 Pages 423-434
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSThe effect of vitamin B_6 deficiency on the biosynthesis of arachidonic acid (20 : 4n-6) from linoleic acid (18 : 2n-6) in rat liver microsomes was studied. Rats fed on a vitamin B_6-deficient diet containing 70% casein for 5 weeks displayed a striking decrease mainly in the activity of terminal Δ6-desaturase (D6D) of the 18 : 2n-6 desaturation system. The decreased activity of D6D seemed to be due to a decrease in the microsomal content of phosphatidylcholine (PC). The activities of choline phosphokinase and choline phosphotransferase decreased clearly. Additionally, the molar ratio of S-adenosylmethionine/S-adenosylhomocysteine in liver decreased drastically and the methylation of phosphatidylethanolamine to PC was repressed. Results in this study demonstrate that vitamin B_6 deficiency modified methionine metabolism and decreased f\choline utilization, which indirectly affected PC biosynthesis, and finally depressed the 18 : 2n-6 desaturation which brought about the decrease of the biosynthesis of 20 : 4n-6.View full abstractDownload PDF (1033K) -
Article type: Appendix
1996 Volume 70 Issue 9 Pages 435-438
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (298K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 439-
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (160K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...Article type: Article
1996 Volume 70 Issue 9 Pages 439-440
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (287K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 440-441
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (311K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...Article type: Article
1996 Volume 70 Issue 9 Pages 441-442
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (319K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 442-443
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (220K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 445-446
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (269K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 446-447
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (306K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 447-448
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (282K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 448-449
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (262K) -
[in Japanese]Article type: Article
1996 Volume 70 Issue 9 Pages 449-450
Published: September 25, 1996
Released on J-STAGE: December 26, 2017
JOURNAL FREE ACCESSDownload PDF (246K)
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