REDUCTION OF OXOTREMORINE-INDUCED ANALGESIA AFTER CHRONIC BUT NOT ACUTE RESTRAINT STRESS

被引:3
作者
BADIANI, A [1 ]
PAVONE, F [1 ]
机构
[1] CNR, IST PSICOBIOL & PSICOFARMACOL, VIA RENO 1, I-00198 ROME, ITALY
关键词
STRESS; ANALGESIA; CHOLINERGIC SYSTEM; OXOTREMORINE; MICE;
D O I
10.1007/BF02244554
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The analgesic response (tail-flick latency) induced by the muscarinic cholinergic agonist oxotremorine was investigated in DBA/2 mice exposed to acute (a single 2 h session) and chronic (2 h once daily for 10 days) restraint stress. While a single exposure to stress did not influence the antinociceptive effects of the cholinergic agonist, chronic stress induced a clear-cut reduction of the oxotremorine-induced analgesia. The results show an involvement of cholinergic mechanisms in the adaptive modulation of nociception after chronic stressful events.
引用
收藏
页码:57 / 61
页数:5
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