Figure 7.

Expression of BDNF and GDNF in TA and PCA muscles. (A) BDNF expression levels were reduced over time in the right TA, and were significantly reduced at 3 weeks following injury in the right PCA. (B) GDNF levels were similar between the TA and PCA muscles from 3–10 weeks. At 16 weeks, the expression levels were greater in the right PCA muscle compared with the right TA muscle. ^*P<0.05 vs. the control group. BDNF, brain-derived neurotrophic factor; GDNF, glial cell line-derived neurotrophic factor; PCA, posterior cricoarytenoid; TA, thyroarytenoid.