ZHAO Min,ZHANG Jinrong,HUA Jianghuan,et al.Zuoguiwan Treats Cyclophosphamide-induced Premature Ovarian Failure by Regulating SLC7A11/GPX4 Pathway to Inhibit Ferroptosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2024,30(17):60-66.
ZHAO Min,ZHANG Jinrong,HUA Jianghuan,et al.Zuoguiwan Treats Cyclophosphamide-induced Premature Ovarian Failure by Regulating SLC7A11/GPX4 Pathway to Inhibit Ferroptosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2024,30(17):60-66. DOI: 10.13422/j.cnki.syfjx.20240903.
Zuoguiwan Treats Cyclophosphamide-induced Premature Ovarian Failure by Regulating SLC7A11/GPX4 Pathway to Inhibit Ferroptosis
To investigate the effect of Zuoguiwan on the ovarian function in the rat model of cyclophosphamide-induced premature ovarian failure (POF) based on the changes of ferroptosis pathway.
Method
2
Forty SD rats were randomized into blank, model, and low- and high-dose (2, 8 g·kg
-1
, respectively) Zuoguiwan groups, with 10 rats in each group. The rats in the other groups except the normal group were intraperitoneally injected with CTX at a dose of 50 mg·kg
-1
on the first day and 8 mg·kg
-1
from the second day to the fifteenth day for the modeling of POF. After modeling, the rats were administrated with corresponding drugs or normal saline by gavage for four weeks. Hematoxylin-eosin staining was performed to observe the pathological changes in the ovarian tissue. The mitochondria of the ovarian tissue was observed by electron microscopy. The serum levels of follicle-stimulating hormone (FSH), estradiol (E
2
), luteinizing hormone (LH), anti-Mullerian hormone (AMH), malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), and iron ion were measured by biochemical methods and enzyme-linked immunosorbent assay. Western blot was employed to determine the protein levels of glutathione peroxidase 4 (GPX4), solute carrier family 7 member 11 (SLC7A11), ferritin heavy chain (FTH1), and acyl-CoA synthetase long chain family member 4 (ACSL4).
Result
2
Compared with the blank group, the model group showcased significantly increased atretic follicles, atrophied, fragmented, and vacuolated mitochondria, and reduced, loose, and disordered cristae in mitochondria. Compared with the model group, high-dose Zuoguiwan increased mature follicles, the volume of mitochondria in the ovary, alleviated the vacuolation, and improved the number and arrangement of mitochondrial cristae. Compared with the blank group, the modeling elevated the levels of iron, MDA, FSH, and LH, up-regulated the expression of GPX4, SLC7A11, and FTH1 (
P
<
0.05,
P
<
0.01), decreased the activities of SOD and CAT, lowered the levels of E
2
and AMH, and down-regulated the expression of ACSL4 (
P
<
0.05,
P
<
0.01). Compared with the model group, drug interventions lowered the levels of iron, MDA, FSH, and LH, down-regulated the expression of GPX4, SLC7A11, and FTH1 (
P
<
0.05,
P
<
0.01), increased the activity of CAT, elevated the levels of E
2
and AMH, and up-regulated the expression of ACSL4 (
P
<
0.05,
P
<
0.01).
Conclusion
2
Zuoguiwan may inhibit the occurrence of ferroptosis by regulating the SLC7A11/GPX4 axis, thereby improving the ovarian function of POF rats.
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