Quantitative <i>in vivo</i> distribution of Cy5.5 fluorescent dye.

<p>(A, B) The distribution of Cy5.5 fluorescent dye was determined by <i>in vivo</i> 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. *, <i>P</i> < 0.05.</p>