Diminished ovarian reserve

Ovarian function impairment affects the quality of life of the survivors of paediatric cancer by impacting fertility, bone quality and mental and cognitive health. The objective of this project is to evaluate the impact of low-intermediate dose alkylating agents associated or not with ovarian cryopreservation technique on ovarian function in female survivors of paediatric cancer. We propose to identify new epigenetic markers in order to predict the risk of premature ovarian insufficiency. The project will be led by a national multi-disciplinary team (paediatric oncologists, gynaecologists, endocrinologists). Paediatric cancer clinical data (therapy, fertility preservation, ...) will be extracted from the Paediatrics Late Effects database and additional data will be collected during PRINCESS fertility evaluation. Through translational and multi-disciplinary approaches, results should improve quality of life and fertility preservation in female survivors of paediatric cancer by developing new personalised screening tools for premature ovarian insufficiency.

This project aims to study the expression of clock genes and related proteins in follicular fluid and granulosa cells, depicting the periodic, amplitude, and phase changes of biological clock genes and related proteins in women of different ages during the reproductive period and in patients with ovulatory disorders. The study compares the periodicity, amplitude, and phase changes of Clock/Bmal1-TTFLs-klotho related proteins and genes in PCOS, DOR patients, and age-matched women with normal ovarian function, aiming to identify the key segments of ovarian clock gene period rhythm disorder under different disease states, and screen the key time points of clock gene oscillation abnormality. Omics analysis of the differences between groups, analysis of the relationship between gene transcription translation, protein expression, metabolites, and the expression of clock genes, and deduction of the dynamic changes and interaction relationships of the biological processes within the ovaries in regulating ovulatory disorders using the method of reinforcing the kidney and regulating the menstrual cycle. This aims to clarify that maintaining the ovarian biological clock period rhythm is an important biological basis for "the kidney dominating reproduction". The regulation mechanism of the treatment of ovulatory disorders using the method of reinforcing the kidney and regulating the menstrual cycle is explained from the perspective of the ovarian biological clock period rhythm.