SPONTANEOUS ACTIVITY AND RESPONSES OF RETICULAR NEURONS IN MONOAMINE-DEPLETED RATS

被引:1
作者
BRIGGS, I [1 ]
TEMPESTA, E [1 ]
机构
[1] MED SCH BIRMINGHAM,MRC,NEUROPHARMACOL UNIT,BIRMINGHAM B15 2TJ,W MIDLANDS,ENGLAND
关键词
Monoamine depletion; p-Chlorophenylalanine; Reserpine; Reticular neurones; Serotonin; Supersensitivity;
D O I
10.1016/0014-2999(79)90361-3
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Depletion of rat brain serotonin by p-chlorophenylalanine (PCPA) pretreatment, or of monoamines by reserpine pretreatment, was associated with reduced spontaneous firing rates of bulbar reticular neurones. Administration of 5-hydroxytryptophan to PCPA-treated rats reversed the reduction of neuronal activity. It is suggested that the results indicate a tonic excitatory serotoninergic input to a significant proportion of these neurones, which is abolished by serotonin depletion. Responses to serotonin and noradrenaline were greater in PCPA-treated and reserpine-treated rats respectively, indicating the development of supersensitivity. © 1979.
引用
收藏
页码:165 / 169
页数:5
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