Endometriosis Knowledgebase


A repository for genes associated with endometriosis

Results


PMID 25376627
Gene Name IL6
Condition Endometriosis
Association In conclusion, there may be an imbalance in the thiol-redox system and increased levels of inflammatory cytokines in the intrafollicular microenvironment of infertile patients with endometriosis, which may affect the qualities of the oocyte and embryo.
Population size 65
Population details 65 (31 patients with endometriosis, 34 patients without endometriosis)
Age 30–39 yrs
Sex Female
Infertility type Female infertility
Associated genes GPX3, IL6, IL8, TNF, TXN, TBPL2
Other associated phenotypes Endometriosis
Alteration in the intrafollicular thiol-redox system in infertile women with endometriosis.

Reproduction. 2015 Feb;149(2):155-62. doi: 10.1530/REP-14-0438. Epub 2014 Nov 5.

Choi, Young Sik| Cho, SiHyun| Seo, Seok Kyo| Park, Joo Hyun| Kim, Seok Hyun| Lee, Byung Seok

Department of Obstetrics and GynecologySeverance Hospital, Yonsei University College of Medicine, Seoul 120-752, Republic of KoreaInstitute of Women's Life Medical ScienceYonsei University College of Medicine, Seoul 120-752, Republic of KoreaDepartmen

The aim of this study was to compare intrafollicular biomarkers of thiol-redox system and chronic inflammation in infertile patients with and without endometriosis, and examine correlations between biomarkers and IVF outcomes. The study included 65 patients receiving IVF: 31 patients with endometriosis vs 34 patients without endometriosis. Follicular fluid (FF) was obtained from a single-dominant follicle during oocyte retrieval and stored at -70 degrees C. Malondialdehyde, superoxide dismutase, glutathione (GSH), glutathione peroxidase 3 (GPX3), thioredoxin (TRX), TRX-binding protein 2 (TBP2), and peroxiredoxin-4 levels were measured in the FF samples by ELISAs as biomarkers of oxidative stress. The inflammatory cytokines interleukin 1 beta (IL1beta), IL6, IL8, and tumor-necrosis factor alpha (TNFalpha) were also measured by ELISAs. GSH levels were significantly lower in the endometriosis group compared with the controls. TBP2 levels were significantly higher in the endometriosis group. IL6, IL8, and TNFalpha levels were significantly higher in the endometriosis group. The levels of all of the inflammatory cytokines positively correlated with the levels of TRX. GSH levels positively correlated with the number of high-quality embryos. GPX3 and TRX levels negatively correlated with the percentage of mature oocytes. TNFalpha levels negatively correlated with the cumulative embryo score per embryo. Logistic regression analysis revealed that the number of high-quality embryos was an independent factor predicting clinical pregnancy. In conclusion, there may be an imbalance in the thiol-redox system and increased levels of inflammatory cytokines in the intrafollicular microenvironment of infertile patients with endometriosis, which may affect the qualities of the oocyte and embryo.

Mesh Terms: Adult| Biomarkers/analysis| Cytokines/analysis| Endometriosis/*metabolism/surgery| Female| Fertilization in Vitro| Follicular Fluid/chemistry| Humans| Infertility, Female/*metabolism| Inflammation/metabolism| Ovarian Follicle/*metabolism| Ovula