The Korean Journal of Pharmacology (대한약리학회지)
- Volume 30 Issue 1
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- Pages.11-18
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- 1994
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- 0377-9459(pISSN)
The Changes of Cyclic AMP Content by Opiates in Chronic Haloperidol Treated Mouse Striatum
Haloperidol 장기 투여된 Mouse Striatum에서 cAMP양에 미치는 Opiates의 영향
- Kim, Soo-Kyung (Department of Pharmacology, Keimyung University School of Medicine)
- 김수경 (계명대학교 의과대학 약리학교실)
- Published : 1994.06.30
Abstract
Cyclic adenosine 3'5'-monophosphate (cyclic AMP) has been frequently accepted as an intracellular messenger for receptor-mediated action of opioids. In this experiment, it was designed to determine the interaction of dopaminergic and opioidergic system in the mouse striatum in normal and chronic haloperidol treated groups. Haloperidol 750ug/kg I.P. for 10 days was performed for dopamine denervation. The morphine, DAGO, DPDPE, and U5O,488H inhibited the increase of haloperidol-induced cyclic AMP content in chronic haloperidol treated mouse striatum. The inhibition of DAGO and DPDPE showed significant increase compared to normal mouse striatum. Naloxone showed antagonistic effect on the morphine and U5O,488H in chronic haloperidol treated group, and showed antagonistic effect on morphine, DAGO, DPDPE, and U5O, 488H in normal mouse striatum. These findings support that there is a functional interrelationship of dopaminergic and opioidergic pathway in the striatum. This result provides an evidence that following destruction of striatal dopaminergic neuron, there are some changes of cAMP content on the
Opioid수용체는 adenylate cyclase의 활성을 억제하므로써 cyclic AMP의 양을 감소시킨다. 본 연구에서는 striatum에서 dopamine과 opioid 신경전달계의 상호관계를 알아보고자 haloperidol(750ug/kg)을 10일간 복강내 투여하여 dopaminergic pathway를 차단시킨후 mouse striatum에서 선택적 opioid