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논문 기본 정보

자료유형
학술저널
저자정보
정영철 (Department of Psychiatry, Institute for Medical Science and Research Institute of Clinical Medicine, Chonbuk National University, Medical School) 은홍배 (Department of Psychiatry, Institute for Medical Science and Research Institute of Clinical Medicine, Chonbuk National University, Medical School) 황익근 (Department of Psychiatry, Institute for Medical Science and Research Institute of Clinical Medicine, Chonbuk National University, Medical School) 박태원 (Department of Psychiatry,Chonbuk National University Hospital)
저널정보
대한생물정신의학회 생물정신의학 생물정신의학 제8권 제1호
발행연도
2001.1
수록면
79 - 84 (6page)

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Objectives : To investigate the effects of (-)-3-PPP(0.5, 2, and 10mg/kg, s.c.) and haloperidol(0.1, 0.5, and 2mg/kg, s.c.) on the extracellular dopamine concentrations, and the effect of pretreatment with (-)-3-PPP(2mg/kg) on the haloperidol(2mg/kg)-induced extracellular dopamine concentrations in the nucleus accumbens(NAS) of free moving rats. Methods : Dopamine levels in dialysate were determined with high pressure liquid chromatography(HPLC) with electrochemical detection(ECD). Results : (1)(-)-3-PPP had dual actions depending on the doses: at 2mg/kg, it decreased and at 10mg/kg, increased extracellular dopamine concentrations ; (2) haloperidol at all doses increased dopamine levels with higher dose having a greater increase; and (3) pretreatment of (-)-3-PPP reduced the increase in dopamine levels elicited by acute treatment with haloperidol. Conclusions : These findings suggest that pretreatment of (-)-3-PPP in low dose could accelerate the onset of therapeutic effect of haloperidol by diminishing the haloperidol-induced dopamine release in the limbic system.

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