Table 1.

Inhibitory effect of TCP pretreatments on brain MAO-A and -B activities.

Pretreatment	MAO Activity Mean % of saline control (± SEM)
	MAO-A	MAO-B
Saline	100.0 ± 18.9aaa	100.0 ± 3.9aaa
1 hr (−) TCP	41.5 ± 3.5bb	29.2 ± 4.0bbb
20 hr (±) TCP	27.1 ± 3.6b	13.9 ± 2.7
1 hr (+) TCP	1.7 ± 0.1	2.6 ± 0.6
1 hr (±) TCP	1.5 ± 0.3	1.7 ± 0.2

^aaap<0.001 vs. all 4 TCP groups;

^bp<0.05,

^bbp<0.002 vs. 1-hr (±) and (+) TCP;

^bbbp≤0.01 vs. other 3 TCP groups n = 3–12/group.