Quantitative in vivo distribution of Cy5.5 fluorescent dye.

(A, B) The distribution of Cy5.5 fluorescent dye was determined by in vivo optical imaging at 24 hours after injection. The injection was performed at 7 days after SCI for rats with SCI (A for normal group, B for SCI group, n = 5 for each group). H = Head, C = Cervical, T = Thoracic, L = Lumbar. (C) The distribution ratio of Cy5.5 fluorescent dye was quantified and compared. Height = Average, Error bar = Standard deviation. *, P < 0.05.