Research Article

Gastrodiae Rhizoma Ethanol Extract Enhances Pentobarbital-Induced Sleeping Behaviors and Rapid Eye Movement Sleep via the Activation of GABAA-ergic Transmission in Rodents

Table 1

GREE reduced the sleep onset time and prolonged the sleep duration of sleep time induced by sub-hypnotic dosage of pentobarbital (28 mg/kg, i.p.).

GroupDose (mg/kg)No. falling asleep/totalSleep time (min)

Control05/1220.5 ± 3.8
Muscimol0.2 47.2 ± 2.
GERE259/13 35.6 ± 2.
50 39.6 ± 2.
100 42.3 ± 4.

Each value represents the mean S.E.M. ( = 12–14). < 0.05 and < 0.005 compared to control.