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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Kyung-In (Department of Pharmacology, College of Pharmacy, Sungkyunkwan Univeristy) Cho, Jae-Han (Department of Pharmacology, College of Pharmacy, Sungkyunkwan Univeristy) Park, Hyun-Jung (Department of Pharmacology, College of Pharmacy, Sungkyunkwan Univeristy) Lee, Seok-Yong (Department of Pharmacology, College of Pharmacy, Sungkyunkwan Univeristy) Jang, Choon-Gon (Department of Pharmacology, College of Pharmacy, Sungkyunkwan Univeristy)
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 제12권 제2호
발행연도
2004.1
수록면
101 - 107 (7page)

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Repeated administration of psychostimulants such as amphetamines increases locomotor activity in rodents. These drugs, including methamphetamine, enhance dopaminergic neurotransmission and result in hyper-locomotion and behavioral sensitization. It is well known that the existence of a complex balance between the cholinergic and dopaminergic systems in the central nervous system. Thus, behavioral sensitization by methamphetamine may be related to the expression of the M1 muscarinic acetylcholine receptors gene. The present study investigated the changes of M1R mRNA in hyperlocomotor activity and behavioral sensitization by methamphetamine (2 mg/kg) in mice. Our results showed that M1R mRNA expression was increased in the frontal cortex and the hippocampus region (the CA2 region) in the acute methamphetamine administered group compared to the saline administered group. In the chronic group, M1R mRNA expression was increased in the frontal cortex ill1d the hippocampus regions (CA2 and DG regions) in melt1amphetamine administered group compared to saline control group. These results indicate that acute or chronic treatment of mathamphetamine leads to the region-specific changes in mRNA expression levels of M1R. Therefore, Therefore, the present result suggests that M1R may play a role in modulating of methamphetamine-induced behavioral sensitization in mice.

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