アブストラクト（32巻2号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Effects of Biting and Response of Sympathetic Nerve System during the Restraint Stress
Subtitle　： Selective Proceedings of 38th General Meeting of Kanagawa Odontological Society, 2003
Authors　： Norio Hori1, Noriyuki Yuyama2, Kenichi Sasaguri3, Hidenori Ishii3, Minoru Onozuka2, Sadao Sato3, Minoru Toyoda1
Authors（kana）　：
Organization　： 1Department of Oral & Maxillofacial Rehabilitation, Kanagawa Dental College, 2Department of Oral Physiology, Kanagawa Dental College, 3Department of Craniofacial & Development Dentistry, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 32
Number　： 2
Page　： 123-125
Year/Month　： 2004 / 9
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： We observed the effect of restraint on the sympathetic nervous system (blood concentration of dopamine, noradrenaline and adrenaline) in rats. Furthermore, we investigated whether these blood concentrations were influenced by biting the masticatory activity of biting. Catecholamine (dopamine, noradrenaline and adrenaline) expressed in the blood plays an important role in mediating behavioral responses to stressors. Biting behavior affects the central nervous system and body function, so we investigated the effect of biting restraint-induced catecholamine concentration in the blood. Rats were exposed to 30 or 60 min restraint with or without biting. The restraint induced increases in catecholamine concentration in the blood. However, catecholamine levels in the biting groups were significantly decreased in catecholamine release compared to the restraint groups. These findings strongly suggest that biting of masticatory activity during restraint exposure suppresses stress-induced catecholamine concentration in the blood.
Practice　： Dentistry
Keywords　： biting, Restraint stress, Dopamine, Noradrenaline, Adrenaline