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논문 기본 정보

자료유형
학술저널
저자정보
Shin, Kyung-Wook (Department of Manufacturing Pharmacy, College of Pharmacy, Chungbuk National University) Hong, Jin-Tae (Department of Pharmacy, College of Pharmacy, Chungbuk National University) Yoo, Hwan-Soo (Department of Pharmacy, College of Pharmacy, Chungbuk National University) Song, Sukgil (Department of Manufacturing Pharmacy, College of Pharmacy, Chungbuk National University) Oh, Ki-Wan (Department of Pharmacy, College of Pharmacy, Chungbuk National University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제26권 제12호
발행연도
2003.1
수록면
1,074 - 1,078 (5page)

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The effects of glycine on morphine-induced hyperactivity, reverse tolerance and postsynaptic dopamine receptor supersensitivity in mice was examined. A single administration of morphine (10 mg/kg, s.c.) induced hyperactivity as measured in mice. The morphine-induced hyperactivity was inhibited by pretreatment with glycine (100, 200 and 400 mg/kg, i.p.). In addition, it was found repeated administration of morphine (10 mg/kg, s.c.) to mice daily for 6 days caused an increase in motor activity which could be induced by a subsequent morphine dose, an effect known as reverse tolerance or sensitization. Glycine (100, 200 and 400 rng/kg, i.p.) also inhibited morphine-induced reverse tolerance. Mice that had received 7 daily repeated administrations of morphine also developed postsynaptic dopamine receptor supersensitivity, as shown by enhanced ambulatory activity after administration of apomorphine (2 mg/kg, s.c.). Glycine inhibited the development of postsynaptic dopamine receptor supersensitivity induced by repeated administration of morphine. It is suggested that the inhibitory effects of glycine might be mediated by dopaminergic (DAergic) transmission. Accordingly, the inhibition by glycine of the morphine-induced hyperactivity, reverse tolerance and dopamine receptor supersensitivity suggests that glycine might be useful for the treatment of morphine addiction.

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