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논문 기본 정보

자료유형
학술저널
저자정보
박기숙 (식품의약품안전청 국립독성연구소) 홍진태 (식품의약품안전청 국립독성연구소) 한진이 (식품의약품안전청 국립독성연구소) 김혜진 (식품의약품안전청 국립독성연구소) 김용규 (식품의약품안전청 국립독성연구소) 이종권 (식품의약품안전청 국립독성연구소) 안광수 (식품의약품안전청 국립독성연구소) 이선희 (식품의약품안전청 국립독성연구소)
저널정보
한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology 제9권 제2호
발행연도
2001.1
수록면
88 - 95 (8page)

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(+)-Methamphetamine (METH) is a psychostimulant, which has been the most popular abused drug in Korea. The rewarding mechanism in METH abuse has been reported to be mediated by dopaminergic system. Recently, it has been reported that dopamine releaser (phentermine) plays a dominant role in the discriminative stimulus effects of METH, whereas 5-HT releaser (fenfluramine) can strongly modify METH self-administration. The present study is designed to assess the behavioral changes and the changes of the serotonin receptors in the brains of rats administered repeated of self-administered METH. The repeated administration of 1.0 mg/kg/day METH for 12 days increased locomotor activities, and there was no difference between i.v. and i.p. treatment. Rats had actively acquired METH self-administration for 3 weeks at 0.1 or 0.2 mg/kg/injection. Whereas, it was taken few days to acquire sucrose pellet self-administration. The binding of [$^3$H]-8-hydroxy-DPAT (5-H $T_{1A}$ receptors) and [$^3$H]-5-carboxytryptamine (5-H $T_{1B}$ receptors) to brain sections was examined. Both passive administration and self-administration of METH did not change significantly the serotonin receptors levels in hippocampus, striatum and nucleus accumbens. These results suggest that serotonin receptors may not change in the acquisition period of METH self-administration, and we are trying to investigate the serotonin receptors levels of brain in rats maintained of METH self-administration.n.n.

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