Methods Several groups of mice were used to carry out this study and they were treated with CTX and carnosine injected intraperitoneally for 15 days.

• 方法连续15天给小鼠注射环磷酰胺和肌肽,定期检测小鼠的体重,白细胞和红细胞及骨髓细胞的变化情况,并记录60天内小鼠的存活数。