Both histamine (200 ng, icv) and histidine (1000 mg/kg, ip) were equally effective in in-creasing the histamine content in the cortex, hippocam-pus, and hypothalamus.

• 组胺(200 ng)和组胺酸(1000 mg/kg)均可有效地增加大脑皮层、海马及下丘脑中的组胺含量.