Table 1A.

Effects of cholesterol dose and addition time on transduction efficiency of NIH3T3 cells. All values were normalized to those under control condition at each collection, in which the same volume of viral vector produced without cholesterol supplementation was used to transduce the cells. All data represent the mean ± S.D. Cholesterol was supplemented at periods P + I + II (Fig. 1) and the transduction efficiencies under the control condition were between 5% and 20% (n = 3).

Dose	1st collection	2nd collection
0.005 mM	1.00 ± 0.17	1.25 ± 0.32
0.03 mM	1.74 ± 0.07	2.05 ± 0.63
0.1 mM	0.47 ± 0.48	0.32 ± 0.11