Fig. 4
From: Shape-memory collagen scaffold combined with hyaluronic acid for repairing intervertebral disc
In vivo study. A Schematic illustration of nucleotomy performed on eight-week-old female Sprague Dawley rats and treatment of in vivo groups. B Schematic image of von Frey test by using 2 g microfilament. C Characterization of a pain model induced by intervertebral disc (IVD) injury. The von Frey test indicated mechanical allodynia in rat model. Mean ± SD, (n = 6), one-way repeated measures of ANOVA