bradykinin

Japanese: bradykinin

...Extreme heat (over 45°C), cold (under 15°C), excessive mechanical stimulation, irritating chemicals, etc. Surface pain seen during inflammation is caused by pain-inducing substances such as bradykinin and serotonin that are produced locally, and the peripheral nerve fibers involved in the pain caused by these pain-inducing substances are C fibers called polymodal nociceptive fibers. When inflammation is present, in addition to these pain-inducing substances, prostaglandin E ₂ and prostaglandin I ₂ are also produced locally. ...

From 【Saliva】

…Stimulation of the parasympathetic nervous system causes a large amount of saliva to be secreted, and at the same time, blood vessels in the salivary glands expand, increasing blood flow. This vasodilation is caused by the action of a polypeptide called bradykinin that is released locally. Saliva secretion occurs reflexively when taste stimuli are added. …

*Some of the terminology that mentions "bradykinin" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…極端な熱(45℃以上)，寒冷(15℃以下)，過度の機械的刺激，刺激性のある化学物質などである。炎症のときにみられる表面痛は，局所に産生されるブラジキニンbradykinin，セロトニンなどの発痛物質によるもので，これらの発痛物質による痛みに関与する末梢神経繊維は，ポリモダル侵害受容繊維とよばれるC繊維である。炎症があると，これらの発痛物質のほか，プロスタグランジンE₂とプロスタグランジンI₂も局所に産生される。…