Studies on Tyrosinosis: 2, Activity of the Transaminase, Parahydroxy-phenyl-pyruvate Oxidase, and Homogentisic-acid Oxidase.
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چکیده
منابع مشابه
Inhibitory effect of Physalis alkekengi extracts in different phenological stages on xanthine oxidase activity
Introduction: Physalis alkekengi (Solanaceae) is a rich source of various antioxidants. There are some reports that show P. alkekengi has been used for treatment of a wide range of diseases including gout and inflammation. Xanthine oxidase plays a crucial role in gout. Many natural compounds such as various flavonoids have been reported to have inhibitory effect on xanthine oxidase. Metho...
متن کاملEffect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in hawthorn. Me...
متن کاملEffect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in hawthorn. Me...
متن کاملSummer Savory (Satureja hortensis) Extract Inhibits Xanthine Oxidase
Xanthine oxidase plays crucial roles in the production of reactive oxygen species (ROS), and uric acid in blood which may lead to gout, one of the oldest known forms of arthritis amongst humans. Summer savory (Satureja hortensis L.) a medicinal/spice exhibits antioxidant activity, but unknown effects on xanthine oxidase activity. Here, for the first time, we examined the effects of S. hortensis...
متن کاملA study of the cofactors required by the tyrosine oxidase system of liver.
Recently considerable work has been reported on the enzyme system in mammalian liver which metabolizes tyrosine to fumarate and acetoacetate. This conversion has been shown to consist of several steps, involving first a transamination of tyrosine to p-hydroxyphenylpyruvic acid, and subsequent oxidation of this intermediate to 2,5-dihydroxyphenylpyruvic acid, then to homogentisic acid, and final...
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عنوان ژورنال:
- British medical journal
دوره 1 5440 شماره
صفحات -
تاریخ انتشار 1965