Fig. 4. Comparision of the protective effect of Sihogyegi-tang, Sihosogan-tang, and Sihocheonggan-tang on dopaminergic neu-rons in the substantia nigra. Number of TH-positive cells in the substantia nigra was ma-nually counted. TH, tyrosine hydroxylase; NOR, saline-adminis-trated group; MPTP, MPTP-administrated group; MPTP+SG, MPTP-administrated group with Sihogyegi-tang; MPTP+SS, MPTP-administrated group with Sihosogan-tang; MPTP+SC, MPTP-administrated group with Sihocheonggan-tang. Scale bar, 200 ìm. Data presented as means±standard deviation. Means with different letters are significantly different (p<0.05) by Duncan’s multiple-range test.

Korean J Acupunct 2023;40:90-8 https://doi.org/10.14406/acu.2023.007

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