Oxidation of synephrine by type A and type B monoamine oxidase |
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| Authors: | O Suzuki T Matsumoto M Oya Y Katsumata |
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| Institution: | (1) Division of Neurotoxicology, Department of Legal Medicine and Division of Oncology, 1st Department of Surgery, Nagoya University School of Medicine, 466 Nagoya, Japan;(2) Present address: Department of Legal Medicine, Hamamatsu University School of Medicine, 3600 Handa-cho, 431-31 Hamamatsu, Japan |
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| Abstract: | Summary Synephrine (SP) was found to be a substrate for monoamine oxidase (MAO) in rat brain mitochondria, showing the Km and Vmax values of 250  M and 32.6 nmoles/mg of protein/30 min respectively. The inhibition studies showed that the SP oxidation was carried out by both type A and type B MAO and a major part of the activity was due to type A MAO. |
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