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  • Title: Human ovarian tissue cryopreservation: indications and feasibility.
    Author: Poirot C, Vacher-Lavenu MC, Helardot P, Guibert J, Brugières L, Jouannet P.
    Journal: Hum Reprod; 2002 Jun; 17(6):1447-52. PubMed ID: 12042259.
    Abstract:
    BACKGROUND: The cryopreservation of ovarian tissue may enable women exposed to gonadotoxic treatments to have children at a later date. METHODS: Between April 1998 and October 2000, we evaluated the feasibility of long-term ovarian tissue cryopreservation in 51 women who were all at risk of becoming sterile following treatment. RESULTS: Ovarian tissue was not cryopreserved in 20 cases because of the woman's age or premature ovarian failure. In 31 patients, ovarian tissue was frozen by a slow cooling technique using DMSO and sucrose as cryoprotectants. The patients were aged 2.7-34 years and 16 of them were <18 years old. Cryopreservation could be performed in all cases. Ovarian cortex histology was performed for all patients to evaluate the concentration of follicles. The mean number of primordial and primary follicles per mm(2) was 20.36 +/- 19.03 before 10 years of age, 4.13 +/- 2.9 between 10 and 15 years of age and 1.63 +/- 3.35 after 15 years of age. An average mean number of 26 +/- 8.2 ovarian fragments (range 13-50) were cryopreserved per patient for future autografts or for in-vitro growth of follicles. CONCLUSION: Cryopreservation of ovarian tissue may be systematically proposed to young women and girls at risk of becoming sterile as a result of gonadotoxic treatment.
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