Conclusion: Jejunum 5-HT-IR cells of heroin dependent rats are involved in the organism regulation course by increacing cell number and enhancing cell secretion.

• 结论：海洛因依赖大鼠空肠5-HT-IR细胞通过增加细胞数量和增强细胞分泌能力，参与了海洛因依赖期间机体的调节过程。