Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Yoshimi Shingai"'
Autor:
Yoshimi Shingai, Miyuki Inai, Chizuru Takahashi, Akiko Masuda, Toshiya Masuda, Yukari Miura, Sari Honda
Publikováno v:
Free Radical Biology and Medicine. 69:300-307
Inhibitory activity of Fe-ion-catalyzed radical oxidation products from 22 types of phenolic compounds toward xanthine oxidase (XO) was investigated. Phenols are readily oxidizable compounds in nature and, thus, showed potent antioxidant activities.
Autor:
Asuka Nakajima, Yasuo Oyama, Yoshimi Shingai, Aya Fujimoto, Kaori Kanemaru, Toshiya Masuda, Minoru Saito
Publikováno v:
Journal of Health Science. 57:425-431
Antioxidants themselves are oxidized to prevent oxidation of other molecules. One may ask if the oxidized antioxidants are safe for humans. However, there is very little information on the toxicity of oxidized antioxidants. We previously identified c
Autor:
Yoshimi Shingai, Tomomi Maekawa, Aya Fujimoto, Mitsuhiro Nakamura, Yoshiaki Sone, Toshiya Masuda
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 20:7393-7396
The iron-ion catalyzed oxidation of the ethanol solution of rosmarinic acid, a potent antioxidant polyphenol of Lamiaceae (Labiatae) plants, afforded a highly tyrosinase-inhibitory active product. The structure of the active product in the oxidation
Autor:
Toshiya Masuda, Yasuo Oyama, Erika Hashimoto, Yoshimi Shingai, Aya Fujimoto, Kaori Kimura, Takuya Kawanai, Toshihisa B. Oyama, Kazuki Koizumi
Publikováno v:
Toxicology in Vitro. 24:1720-1726
Many effects of sesamol, an antioxidative constituent of sesame oil, have been reported for human health benefits due to its antioxidative action. However, we recently isolated two cytotoxic products, trimer and tetramer of sesamol, from oxidation of
Autor:
Toshiya Masuda, Tomoko Inouchi, Shoji Imai, Mitsuhiro Nakamura, Miyuki Inai, Aya Fujimoto, Yoshimi Shingai
Publikováno v:
Bioscience, biotechnology, and biochemistry. 76(4)
The functionality of spring mountain herbs, which were collected in the Kajigamori mountain area of Shikoku area in Japan, was investigated in the course of our studies for utilizing local plant resources. The radical scavenging activity of the extra
Publikováno v:
Journal of agricultural and food chemistry. 59(15)
Polyphenols have recently attracted much attention as potent antioxidants and related bioactive substances. These potent antioxidative polyphenols are very oxidizable due to their chemical properties, and their oxidation products must accumulate in t
Autor:
Aya Fujimoto, Masao Morita, Toshiya Masuda, Yoshimi Shingai, Hisashi Nishiwaki, Satoshi Yamauchi
Publikováno v:
Bioscience, biotechnology, and biochemistry. 75(5)
The antioxidative activity of secocyclolignanes was compared with that of the corresponding dibenzyl lignans for the first time. The radical scavenging activity of the secocyclolignanes was weaker than that of the corresponding dibenzyl lignans, the
Autor:
Yoshiaki Sone, Mitsuhiro Nakamura, Yoshimi Shingai, Toshiya Masuda, Tomomi Maekawa, Aya Fujimoto
Publikováno v:
ChemInform. 42
Oxidation of rosmarinic acid (I) affords the highly tyrosinase inhibitory active product (II) (yield given in g).
Autor:
Yoshimi Shingai, Yasuo Oyama, Mitsuhiro Nakamura, Yoshiaki Sone, Tomomi Maekawa, Aya Fujimoto, Toshiya Masuda
Publikováno v:
Journal of agricultural and food chemistry. 58(20)
Phytophenols of edible plants have recently attracted much attention as potent antioxidants and related bioactive substances. These antioxidative phytophenols are very oxidizable due to their chemical properties, and their oxidation products must acc