Effects of Electro-Acupuncture on Nociceptive Reflexes
10.3777/jjsam.31.247
- VernacularTitle:ハリ通電刺激の侵害受容性反射に及ぼす影響
- Author:
Washiro Yasumo
;
Ayahiko Nishigori
;
Masazumi Kawamoto
;
Yuzo Yamaguchi
;
Taro Tsujimoto
- Publication Type:Journal Article
- From:Journal of the Japan Society of Acupuncture and Moxibustion
1982;31(3):247-251
- CountryJapan
- Language:Japanese
-
Abstract:
We examined effects of electro-acupuncture on the jaw opening reflex. Using rats anesthetized with pentobarbital sodium (40mg/kg: intraperitoneal) the jaw opening reflex was evoked by electrical stimulation of the dental pulp. The reflex was evoked by electro-myograms were recorded from the digastric muscle, showing di- or triphasic potentials with latency of about 6 msec. The dental pulp stimulation was preceded by single pulse electroacupuncture (EA) of the fore- or hind-leg.
Facilitation followed by inhibition of the jaw opening reflex was induced by the EA. The facilitation lasted for about 20 msec and 30 msec in case of the fore- and hind-leg EAs, respectively. The following inhibition was observed up to about 300 msec and 400 msec after the fore- and hind-le2 EA9, respectively.
It is worthy of note that train pulse EAs diminished inhibition of the jaw opening reflex.
