Table 2.

In vitro NT-3 levels of three independent batches of tet-off NT-3 lentivirus (ng/ml)

Batch	Virus amount (ng by p24)	Dox	NT-3 (ng/ml)	Fold regulation (average)
1	20	−	6.9	14.9
		+	0.4
	40	−	7.6
		+	0.6
2	20	−	8.5	21
		+	0
	40	−	12.7
		+	0.6
3	20	−	8.2	16.5
		+	0.5
	40	−	14.9
		+	0.9