Steroids and protein markers in the follicular fluid as indicators of oocyte quality in patients with and without endometriosis

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This study found that women with endometriosis had lower estradiol levels in their follicular fluid compared to controls, suggesting estradiol may indicate oocyte quality.

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This study measured steroid hormones (estradiol, progesterone) and pregnancy-associated protein-A, IGF-binding protein-4, and leptin in follicular fluid from infertile IVF patients with and without endometriosis, comparing concentrations between the groups. Estradiol levels in follicular fluid were significantly higher in controls than in women with endometriosis, while the other tested protein and hormone markers did not differ. The authors conclude that, alongside oocyte maturity, lower follicular estradiol indicates decreased oocyte quality in endometriosis. A key limitation is that the paper reports biomarker concentration differences without showing detailed assay methodology or broader marker patterns linking each hormone to specific measures of oocyte quality beyond the stated inference. This paper is centrally about endometriosis — it compares follicular-fluid steroid and protein marker profiles (especially estradiol) between IVF patients with and without endometriosis to infer impacts on oocyte quality.

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Abstract

PURPOSE: To investigate the concentrations of steroid hormones (estradiol, progesterone), pregnancy-associated protein-A, IGF-binding protein-4 and leptin in the follicular fluid of infertile patients with and without endometriosis. METHODS: Follicular fluid of IVF patients with and without endometriosis was aspirated, centrifuged and stored to analyze the above mentioned hormones and to compare their concentrations between women with and without endometriosis. RESULTS: Follicular fluid estradiol levels were significantly higher in controls than in affected women. The concentrations of the other markers did not differ between the two groups. CONCLUSIONS: Since not only the follicular fluid concentration of estradiol, but also the oocyte quality is decreased in women with endometriosis, we suggest that estradiol can be considered as a marker not only of oocyte maturity but also of oocyte quality.
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Abstract

Purpose: To investigate the concentrations of steroid hormones (estradiol, progesterone), pregnancy–associated protein-A, IGF-binding protein-4 and leptin in the follicular fluid of infertile patients with and without endometriosis.

Methods

Follicular fluid of IVF patients with and without endometriosis was aspirated, centrifuged and stored to analyze the above mentioned hormones and to compare their concentrations between women with and without endometriosis.

Results

Follicular fluid estradiol levels were significantly higher in controls than in affected women. The concentrations of the other markers did not differ between the two groups.

Conclusions

Since not only the follicular fluid concentration of estradiol, but also the oocyte quality is decreased in women with endometriosis, we suggest that estradiol can be considered as a marker not only of oocyte maturity but also of oocyte quality. Similar content being viewed by others

References

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Fertil Steril 2004;81:1194–1197 Author information Authors and Affiliations Corresponding author Rights and permissions About this article Cite this article Wunder, D.M., Mueller, M.D., Birkhäuser, M.H. et al. Steroids and protein markers in the follicular fluid as indicators of oocyte quality in patients with and without endometriosis. J Assist Reprod Genet 22, 257–264 (2005). https://doi.org/10.1007/s10815-005-5149-2 Received: Accepted: Issue date: DOI: https://doi.org/10.1007/s10815-005-5149-2

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Estradiol Follicular Fluid Infertility, Female Infertility, Female Adult Case-Control Studies Endometriosis Estradiol Estradiol Estradiol Female Fertilization in Vitro Follicular Fluid Humans Infertility, Female Infertility, Female Insulin-Like Growth Factor Binding Protein 4 Insulin-Like Growth Factor Binding Protein 4 Leptin

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