Dynamic Protective Effect of Chinese Herbal Prescription, Yiqi Jiedu Decoction, on Testis in Mice with Acute Radiation Injury.

Objective: A Chinese herbal prescription, Yiqi Jiedu (YQJD) decoction, is used for injuries caused by radiotherapy. This study aimed to investigate the dynamic protective effects of YQJD decoction in mice on radiation damage at different time points of the testis.

Methods: The 200 male Balb/c mice were randomly divided into 5 groups (blank, model, Anduolin, low-dose YQJD, and high-dose YQJD groups). Blank and model groups were all given stomach deionized water. Anduolin group and high and low dose of Chinese herb groups were treated with Chinese material medical decoction compound for 2 weeks before being irradiated. Except for the blank group, other groups were given whole-body one-time irradiation of 5.5 Gy Co gamma rays. Histopathology examination of testes was conducted on the 1st, 7th, 21st, and 35th day after irradiation, respectively. Indexes of sperm motility rate, sperm count, serum levels of testosterone (T), estradiol (E2), follicle-stimulating hormone (FSH), and luteinizing hormone (LH) were also measured correspondingly.

Result: Compared to 1 day and 7 days after irradiation, most of the indexes, including testis index, sperm motility, and count, were decreased on the 21st and 35th day in all irradiated groups. However, compared with the model group, the indexes to assess sperm quality and the morphological structures of testis in low-dose and high-dose YQJD groups were significantly recovered on the 21st and 35th days. Additionally, reproductive hormones, including testosterone and estradiol, were recovered more in low-dose and high-dose YQJD groups on the 21st and 35th days.

Conclusion: The YQJD decoction is able to accelerate the recovery of sperm indexes, testosterone, and estradiol levels of sex hormones in mice after irradiation and demonstrated good protective effects on the testis.