|  | Numbers of positive cells | % Long-term expression* | ||||
---|---|---|---|---|---|---|---|
 |  | 4 days | 1 month |  |  | ||
Vectors | gC | β-gal-IR | Flag-IR | β-gal-IR | Flag-IR | β-gal | Flag |
pTHlac & pHSVpkcΔGG | gC – bdnf | 2,071 ± 602 | 1,723 ± 284 | 768 ± 36 | 478 ± 38 | 37 | 28 |
pINS-TH-NFHlac & pHSVpkcΔGG | gC – gdnf | 2,230 ± 402 | 2,214 ± 209 | 816 ± 121 | 515 ± 94 | 37 | 23 |