Quinone (absorbance ×103) | Quinone (absorbance ×103) | |
---|---|---|
Controls | 116 ± 5 (100%) | 118 ± 14 (100%) |
L-DOPA | 238 ± 83-a (205%) | ND |
NGF | 115 ± 7 (99%) | 99 ± 6 (84%) |
L-DOPA & NGF | 216 ± 83-a (186%) | ND |
LNAC | 107 ± 5 (92%) | ND |
L-DOPA & LNAC | 123 ± 63-d (106%) | ND |
Apomorphine | ND | 176 ± 33-a (149%) |
Apomorphine & NGF | ND | 149 ± 3b,c (126%) |
Five days after plating, cultures were exposed to 50 μmL-DOPA, 500 μm LNAC, 50 ng/ml NGF, or 10 μmapomorphine as indicated for 24 hr. The extracellular media were then assayed for quinone levels. Data are mean ± standard error (n = 6). These measurements were run with two batches of sister cultures; in each case, n = 6 cultures per condition.