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ARGP CHAT levels shown by immunohistochemistry staining. (A–C) ARGP CHAT staining in sham group (group A), empty vector gene control group (group B), and Gαi2ctp gene experimental group (group C). The niger-brown-staining areas were positive ganglion cells and unpigmented areas were negative ganglion cells, while the blue-staining areas were cores. (D) TH and CHAT expression levels in ARGP. * P<0.05 compared with group B.
