Table 1: Quantification of gene-transfer efficiency by counting the number of GFP-positive cells.

ConditionNumber of GFP positive cell (mean ± SEM)Mann-Whitney 𝑈 test

control ( B L + 𝑝 𝑙 𝑎 𝑠 𝑚 𝑖 𝑑 )No positive cell
U S + B L + p l a s m i d 3 2 . 0 ± 4 . 9 𝑃 < 0 . 0 1 (versus control and US + plasmid)
U S + p l a s m i d 4 . 2 ± 2 . 7 𝑃 < 0 . 0 1 (versus control)