Fig 1: SA attenuated sympathetic nerve remodeling and nerve sprouting at 4 weeks after MI. (A) TH and GAP43 were detected by immunohistochemistry. Scale bar, 50 µm. (B,C) Quantitative analysis of TH and GAP43. (D) Expression of NGF mRNA in the three groups. *Compared with the sham group, P < 0.05, #Compared with the MI group, P < 0.05, n = 8 in each group.