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兔蓝斑下核内注入6—羟基多巴胺后视前区阿片受体的变化 总被引:1,自引:0,他引:1
本文在家兔双侧蓝斑下核内注入6-羟基多巴胺(6-OHDA)20~d后,用甲醛诱发荧光组织化学法显示视前区儿茶酚胺(CA)神经末梢明显减少,其中以内侧区较明显;与此同时,受体放射自显影结果表明,视前区与~3H-埃托啡特异结合的阿片受体密度也明显减少,亦以视前内侧区较显著。上述结果提示,视前区(尤其内侧区)CA 神经末梢上分布有阿片受体。 相似文献
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The effect of microinjection of 6-hydroxydopamine into the preoptic area was studied to observe the effect of destruction of catecholaminergic terminals in the preoptic area on acupuncture analgesia. It was shown that the analgesic effect of acupuncture was significantly enhanced in 6-hydroxydopamine treated group on the second and fourth day after injection as compared with those before injection or those in control group. The fluorecence of catecholamine terminals in the preoptic area disappeared almost completely on the fourth day after injection, and did not restore on the tenth day. The data indicate that the reduction of catecholamine content in the preoptic area may enhance acupuncture analgesia. 相似文献
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