アブストラクト（22巻2号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Interaction among Sympathetic, Parasympathetic and Trigeminal Nerves - Mechanism of the Reilly Syndrome in Oral Medicine -
Subtitle　： ORIGINAL ARTICLES
Authors　： Toyoji Aki*, Tokutaro Ishida*, Noriyuki Yuyama*, Kagemasa Kajiwara**, Hisaaki Takagi*, Eiichi Sugaya**
Authors（kana）　：
Organization　： *Department of Physiology, Kanagawa Dental College, **Tsumura Institute for Oriental Medicine, School of Medicine, Keio University
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 22
Number　： 2
Page　： 83-89
Year/Month　： 1994 / 9
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] To elucidate the reasons for sympathetic irritation, parasympathetic irritation and trigeminal nerve irritation provoking the same type of pathological changes in the Reilly syndrome, interaction among these three nerves in the neurons of the lateral horn was investigated electrophysiologically. Some of the lateral horn neurons showed evoked unit discharge with stimulation of the cervical vagus nerve. Some of these neurons showed evoked firing at the same time by a single stimulation of either trigeminal nerve or the cervical vagus nerve although their latency differed. The discharge rate of spontaneous firing of the lateral horn neurons changed after repetitive stimulation of the cervical vagus nerve. Changes in the discharge rate showed two types, the increased type and decreased type. Both types of effects increased with greater stimulus intensity, duration and frequency. These two types of neurons were irregularly scattered in the lateral horn area but the increased type was more frequently detected. These findings together with our previous results suggest that some of the neurons in the lateral horn receive input directly from the cervical vagus nerve as well as the trigeminal nerve polysynaptically and the lateral horn neurons play the role of a final common path in cases of strong and long-lasting irritation of the vagus nerve, trigeminal nerve and sympathetic nerve. Consequently abnormal discharges occur in the sympathetic postganglionic fibers and result in the appearance of the Reilly syndrome.
Practice　： Dentistry
Keywords　：