Table 3.

Effects of Cinnamon Extract on Serotonin, Norepinephrine and Melatonin Levels in PCPA-induced Insomnia

Group	Serotonin (ηg/mL) (Mean±SD)	NE*(ηg/mL) (Mean±SD)	MT†(ρg/mL) (Mean±SD)
Control	6.150 ±0.400	0.320±0.010	6.100±0.400
PCPA‡	3.120±0.200	0.650±0.040	3.400±0.200
PCPA + Estazolam	6.130±0.400§	0.350±0.010§	5.100±0.400§
PCPA + cinnamon extract (25 mg/kgBW||)	7.170±0.300§	0.470±0.020§	4.600±0.400§
PCPA + cinnamon extract (50 mg/kgBW||)	7.850±0.300§	0.400±0.020§	5.400±0.100§
PCPA + cinnamon extract (100 mg/kgBW||)	7.930±0.200§	0.380±0.010§	6.200±0.300§

^*Norepinephrine;

^†Melatonin;

^‡P-chloro-phenyl alanine;

^§P<0.05 compared with PCPA group;

^||Body weight.