Kamenskiĭ A A, Kalikhevich V N, Sarycheva N Iu
Biull Eksp Biol Med. 1986 Jan;101(1):55-7.
Administration of endogenous immunostimulator, tuftsin, (0.3 mg/kg, i/p) in rats produced biphase behavioral response. The first phase lasted for about 30 min and was characterized by the enhancement of orientation behavior and suppression of startle reaction. During the second phase the orientation behavior was depressed and passive avoidance reaction intensified. The second phase lasted for at least 24 hours.
给大鼠腹腔注射内源性免疫刺激剂促吞噬素（0.3毫克/千克）会产生双相行为反应。第一阶段持续约30分钟，其特征是定向行为增强和惊吓反应受到抑制。在第二阶段，定向行为受到抑制，被动回避反应增强。第二阶段至少持续24小时。
