Hormonal characteristics of women receiving ovarian tissue transplantation with or without endogenous ovarian activity

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Ovarian tissue cryopreservation (OTC) and transplantation of frozen/thawed ovarian tissue (OTT) are used for fertility preservation in girls and women. Here, we evaluated the hormonal characteristics of women with or without postmenopausal levels of FSH at the time of OTT to study differences and conditions that best support the initiation of ovarian function. A total of 74 women undergoing OTT (n = 51 with menopausal levels of FSH; n = 23 with premenopausal levels) were followed by measurements of FSH, LH, AMH, and oestradiol. Concentrations of FSH and LH returned to premenopausal levels after 20 weeks on average, with a concomitant increase in oestradiol. Despite resumption of ovarian activity, AMH concentrations were in most instances below the detection limit in the menopausal group, suggesting a low ovarian reserve. Despite a higher age in the premenopausal group, they more often experienced an AMH increase than the menopausal group, suggesting that conditions in the premenopausal ovary better sustain follicle survival, perhaps due to the higher concentrations of oestradiol. Collectively, this study highlights the need for improving follicle survival after OTT. Age and the amount of tissue transplanted are important factors that influence the ability to regain ovarian activity and levels of FSH may need to be downregulated and oestradiol increased prior to OTT.

TidsskriftJournal of Clinical Medicine
StatusUdgivet - nov. 2021

Bibliografisk note

Funding Information:
The EU interregional ReproUnion project, University Hospital of Copenhagen, Vera og Carl Johan Michaelsens Legat, L?ge Sophus Carl Emil Friis og hustru Olga Doris Friis? Legat supported this study but had no role in the study design, collection and analysis of data, as well as no role in the data interpretation or in the writing of the report.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

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