Table 1. Drugs tested in the DTT assay.

Drug	Survival-time extension
Lipoic acid
0.5%	No
0.05%	No
0.005%	Yes
0.001%	Yes
Geldanamycin
1 μM	No
200 nM	No
100 nM	No
Catechin
80 μM	No
EGCG
50 μM	No
Caffeine
0.04%	No
0.004%	No
Tocopherol
1 mM	No
100 μM	No
4-PBA
5 mM	No
2.5 mM	No
Resveratrol
500 μM	No
200 μM	Yes
100 μM	Yes
50 μM	No
Sirtinol
100 μM	No
zVAD-fmk
10 μM	No
5 μM	No