Affiliations: Department of Nutritional Science, Faculty of Applied
Bioscience, Tokyo University of Agriculture, Tokyo, Japan | Department of Nutrition, Tomakonai Komazawa Junior
College, Tobakomai, Hokkaido, Japan | Research Institute of New Materials, Fuji Oil Company
Ltd., Osaka, Japan
Note: [] Tokyo University of Agriculture, Tokyo 156-8502, Japan. Fax: +81
3 5477 7222; E-mail: swatanab@nodai.ac.jp
Abstract: Antioxidative activity of isoflavones has not been shown in humans.
Newly-developed isoflavone-rich soya hypocotyl tea contains about 12 mg
isoflavones per liter. 15 tea drinkers and 23 control young female students
were randomly selected from volunteers, and underwent physical examination,
blood chemistry and urinary analysis before and after one month of tea
drinking. A three-day dietary record was taken before each physical
examination. The tea drinkers showed a lower level of phosphatidylcholine
hydroperoxide (PCOOH) and phosphatidyl-ethanolamine hydroperoxide (PEOOH) in
the red blood cells and a significant reduction of 8-hydroxydeoxyguanine
(^8ohdG) in the urine compared to the controls.
Journal: BioFactors, vol. 12, no. 1-4, pp. 227-232, 2000
