[Regulatory Effect of Zishen Yutai Pill on the Biological Behavior of Oocytes in Immune Infertility Model Rats].

Objective To observe the intervention effect of Zishen Yutai Pill (ZYP) on the oo- cytes of infertile rats with positive anti-sperm antibody (AsAb). Methods AsAb positive immune infertil- ity model was established using active immunity. Totally 100 female SD rats were randomly divided into the blank control group, the model group, low, middle, and high dose ZYP groups, 20 in each group. Dif- ferent medications were administered to rats in corresponding groups by gastrogavage from the 22nd day of modeling to the 36th day, once per day. Normal saline (5 mL/kg) was administered to rats in the model group by gastrogavage. ZYP at 0. 075, 0.100, 0.150 g/mL was respectively administered to rats in low, middle, and high dose ZYP groups. AsAb and transforming growth factor β (TGF-β) levels were meas- ured by ELISA. Oocytes were collected after rats were sacrificed. mRNA and protein expression levels were detected using Real-time quantitative polymerase chain reaction ( RT-PCR) and Western blot. Oo- cyte apoptosis rate was determined by flow cytometry (FCM) and transferase-mediated deoxyuridine triphosphate-biotin nick end labeling (TUNEL). The oocyte proliferation level was detected by cell count- ing kit 8 (CCK-8) and 5-ethynyl-2'-deoxyuridine (EdU). Oodyte migration and invasion was determined u- sing invasion chamber (Transwell) and scratch experiment. Results Compared with the blank control group, the apoptosis of oocytes increased, the proliferation of oocytes was reduced, the capabilities of migration and invasion were enhanced, mRNA and protein expression levels of TGF-β were significantly down-regulated (P <0. 05). Compared with the model group, the apoptosis of oocytes was reduced, the proliferation of oocytes was increased, the capabilities of migration and invasion were enhanced, mRNA and protein expression levels of TGF-β were significantly up-regulated in the high dose ZYP group (P < 0. 05). Besides, their effects were obviously superior in the high dose ZYP group than in low and middle dose ZYP groups (P <0. 05). Conclusion The application of high dose ZYP could obviously up-regulate the level of TGF-β and improve the function of oocytes.