5-HTnergic neural terminal fibers of immunohischemical data in the midbrain between NS group, 5-HTP group and MS group: compared with NS group, thereare few numbers of 5-HT neuron in 5-HTP group and more in MS group.

• NS组、5一HTP组、MS组进行的中脑5一HT神经纤维染色示:与NS组相比，5一HTP组的5一HT能阳性细胞少，MS组的5一HT能阳性细胞多。