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Involvement of reduction in apoptosis-related proteins in the neuroprotective effects of CA. (A) Cells were pretreated with DMSO alone (−) or 0.5, 1, or 3 μM CA for 18 h and were then treated with 20, 200, and 400 μM L-dopa for an additional 24 h. One representative immunoblot out of three independent experiments is shown. (B) The control group was regarded as 1. Values are mean ± SD (n = 3). Means not sharing a common letter are significantly different, p < 0.05.
