Oxidative stress and inflammatory markers in ovarian follicular fluid of women with diminished ovarian reserve during in vitro fertilization

• Published in: Journal of ovarian research 2023-10, Vol.16 (1), p.1-206, Article 206
• Main Authors: Huang, Yan, Cheng, Yi, Zhang, Min, Xia, Yan, Chen, Xiaoyan, Xian, Yexing, Lin, Dewei, Xie, Suyan, Guo, Xinyu
• Format: Article
• Language: English
• Subjects: Antioxidants; Comparative analysis; Correlation analysis; Cytokines; Diagnosis; Diminished ovarian reserve; Embryonic development; Embryos; Endometriosis; Enzymes; Follicles; Follicular fluid; Growth factors; IL-18; Immunoassay; In vitro fertilization; Inflammation; Interleukin 18; Lipid peroxidation; Lipids; Menstruation; Microenvironments; Ovaries; Oxidative stress; Proteins; TNF-α; Tumor necrosis factor-α
• ISSN: 1757-2215; 1757-2215
• DOI: 10.1186/s13048-023-01293-0

Background Follicular microenvironment has been proposed as an important factor for oocyte grown and maturation. We sought to evaluate the oxidative stress and inflammatory levels in follicular fluid (FF) and association with embryo quality in patients with diminished ovarian reserve (DOR). Methods The current research included 46 DOR cases and 56 normal ovarian reserve (NOR) cases. Twelve representative oxidative stress markers and eight representative inflammatory factors were measured in the FF. Results Oxidative stress markers total GSH (T-GSH) was decreased in the FF from women with DOR compared with that in NOR group (P = 0.041). More modest differences were observed for reduced GSH (rGSH) and rGSH/GSSG. Women with DOR compared to controls had higher level of TNF-[alpha] (P = 0.000) and lower level of IL-18 (P = 0.013). Correlation analysis revealed that GSSG was negatively correlated with normal fertilization rate in NOR group (r = -0.358, P = 0.008), and reduced GSH was negatively correlated with normal fertilization rate in DOR group (r = -0.299, P = 0.049). Moreover, as the regression analysis data showed, the GSSG level was significantly associated with embryo quality indicator. Conclusions The FF in DOR patients was accompanied by increased oxidative stress and inflammatory levels. Follicular development of women with DOR might be influenced by unusual IL-18 and TNF-[alpha] levels in FF. And oxidative stress marker GSSG in NOR group was a negative predictor for embryo quality. Keywords: Oxidative stress, Inflammation, Follicular fluid, Diminished ovarian reserve, TNF-[alpha], IL-18, GSH