摘要
大鼠侧脑室注射神经降压素(NT)100 ng,痛阈(PT)明显升高,并显著增强电针(EA)镇痛效应。抗NT血清(ANTS)明显降低大鼠的痛阈,并减弱电针的镇痛作用。侧脑室预先注射100 ng纳洛酮,可明显减弱NT的镇痛和增强电针镇痛的作用。结果表明,中抠神经系统内的NT参与痛觉调节过程,并在电针镇痛过程中发挥一定的作用。NT的上述作用,部分是由内源性阿片肽系统所中介的。
Experiments were undertaken in rats to investigate the effect of intraventrical injection of neurotensin (NT) and antineurotensin serum (ANTS) on electroacupuncture (EA) analgesia. Neurotensin administration induced a enhancement of pain threshold and increased electroacupuncture analgesia Injection of antineurotensin serum reduced the pain threshold significantly and diminished the effect of electroacupuncture analgesia. Furthermore, pre-injection of naloxone 100μg intraventrically could weaken analgesic effect of NT and NT-EA analgesia. These results indicate that neurotensin in central nervous system is involved in pain modulation and plays a role in EA analgesia The effect of neurotensin may be partly conducted by endogenous opiate peptides.
出处
《第二军医大学学报》
CAS
CSCD
北大核心
1990年第6期523-526,共4页
Academic Journal of Second Military Medical University
关键词
神经降压素
电针
针刺镇痛
ANTS
neurotensin
antineurotensin serum
naloxone
pain threshold
acupuncture
analgesia
