著者

山口 昌樹 金森 貴裕 金丸 正史 水野 康文 吉田 博

出版者

一般社団法人 日本生体医工学会

雑誌

医用電子と生体工学 (ISSN:00213292)

巻号頁・発行日

vol.39, no.3, pp.234-239, 2001 (Released:2011-10-14)

参考文献数

15

被引用文献数

17

---

It is more than a half-century since Dr. Hans Selye proposed that the reaction to an external stimulus to a human be called a “stress.” However, an index that can quantitatively evaluate the stress has not yet been established. We have focused on the change of α-amylase activity in saliva (salivary amylase) and carried out an in vivo evaluation in six normal subjects to define the levels of mental stress through amylase activity. In this evaluation, the Kraepelin Psychodiagnostic Test was used as a mental stressor for the subjects. In normal subjects, a comparatively quick response was observed by the experiment for stress load, which verified a correlation between mental stress and salivary amylase activity. The sign of gradient calculated from the salivary amylase activity was negative or positive, depending on whether the stress reaction is comfortable. Furthermore, when the salivary amylase activity and salivary total protein were measured, the effect of the salivary flow rate could be estimated. The change of salivary amylase activity was confirmed as being originated from stress. These results suggest that the monitoring of salivary amylase could be used as a noninvasive indicator of stress reaction.

著者

森 貴裕 佐野 正弥 杉山 悟 吉原 四方 寺邑恵 里香 門馬 牧子 水上 創 中原 史雄 羽田野 敦子 藤澤 美亜 小池 潤 鈴木 孝良 松嶋 成志 鈴木 秀和

出版者

一般社団法人 日本消化器内視鏡学会 関東支部

雑誌

Progress of Digestive Endoscopy (ISSN:13489844)

巻号頁・発行日

vol.97, no.1, pp.73-75, 2020-12-18 (Released:2021-01-08)

参考文献数

5

---

A 22-year-old woman who had abdominal pain and diarrhea from 5 days ago got a CT scan in the hospital of origin and had a tumor about 5 cm in the stomach and bleeding. Upper gastrointestinal endoscopy revealed a large gastric submucosal tumor in pylorus. We considered it a malignant gastric submucosal tumor, and performed surgery, it was diagnosed as gastric plexiform fibromyxoma. Gastric plexiform fibromyxoma is a rare gastric mesenchymal tumor first reported by Takahashi et al. in 2007. Gastric plexiform fibromyxoma usually causes nonspecific symptoms of bleeding signs and is often operated on for that reason. However, surprisingly, plexiform fibromyxoma is a benign tumor with no reports of metastasis or recurrence.