Objective: To observe the protective effects of Buyang Huanwu Decoction (BYHWD) on neurons after rubrospinal tract (RST) transection in rats. Methodes: Female Spmgue-Dawley rats were divided into three groups randomly: 1. Normal group; 2. Experimental group which was given BYHWD via gastrogavage after RST transection between C3 and C4; 3. Control group which was given distilled water after fight RST transection between C3 and C4. The location of rubrospinal neurons was examined by Fluoro-gold (FG) retrogression tracing. 8 weeks after t...