Effect of 5-｛3-[((2S)-1, 4-Benzodioxan-2-ylmethyl)amino]propoxy｝-1, 3-benzodioxole HCl (MKC-242), a Novel 5-HT1A-Receptor Agonist, on Aggressive Behavior and Marble Burying Behavior in Mice

[摘要] References(31)Cited-By(26)Behavioral effects of 5-｛3-[((2S)-1, 4-benzodioxan-2-ylmethyl)amino]propoxy｝-1, 3-benzodioxole HCl (MKC-242), a novel 5-HT1A-receptor agonist, were evaluated using animal models of anxiety and obsessive compulsive disorder and compared against reference compounds. MKC-242 suppressed foot shock-induced fighting behavior without loss of motor coordination in mice as the reference compounds did. The ED50 values of MKC-242, buspirone, tandospirone and diazepam were 1.7, 42, 80 and 2.0 mg/kg, p.o., respectively. The duration of the suppression of fighting by MKC-242 was longer than those of buspirone and tandospirone and comparable to that of diazepam. Similar results were also obtained with the water-lick conflict test in rats. The plasma concentration of MKC-242 in rats was much higher than the reported value of buspirone during 0.25 – 6 hr after oral administration. In addition, MKC-242 reduced marble burying behavior without reduction of motor activity. Fluoxetine, tandospirone and diazepam also reduced the behavior at non-sedative doses. These findings indicate that MKC-242 possesses a longer-lasting anxiolytic effect than azapirones. This might be due to the high concentration of the compound in plasma. In addition, it is also suggested that MKC-242 possesses an antiobsessional effect.

[学科分类] 药理学

[关键词] MKC-242;5-HT1A receptor;Anxiolytic;Aggressive behavior;Marble burying behavior