Fig. 2From: MicroRNA-223 demonstrated experimentally in exosome-like vesicles is associated with decreased risk of persistent pain after lumbar disc herniationFold expression of a miR-223, b miR-760 and c miR-145 in nucleus pulposus (NP) tissue frozen directly (native) or 180 min after NP application onto the dorsal nerve roots (exposed) after harvesting. Students t test **p < 1 × 10−5. Data are given as the mean ± SEMBack to article page