Effect of different sites for cryopreserved ovarian tissue implantation in rabbit

BACKGROUND: Autotransplantation of frozen-thawed ovarian tissue has proven to be an effective method to restore endocrine function and fertility. But it remains to be studied which site and which method is most effective and practical. We therefore implanted small pieces of cryopreserved ovarian tis...

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Bibliographic Details
Published in:Human reproduction (Oxford) 2007-03, Vol.22 (3), p.662-668
Main Authors: Deng, Xiao-hui, Xu, An-ran, Chao, Lan, Yu, Hong-ling, Zhen, Jun-hui, Hashimoto, Shu, Morimoto, Yoshiharu
Format: Article
Language:English
Subjects:
Animals
autologous
Biological and medical sciences
Cryopreservation
Endometrium - anatomy & histology
Female
Gynecology. Andrology. Obstetrics
implantation
Medical sciences
Ovarian Follicle - anatomy & histology
Ovarian Follicle - pathology
ovary
Ovary - anatomy & histology
Ovary - cytology
Ovary - surgery
Ovary - transplantation
Rabbits
Vaginal Smears
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Summary:BACKGROUND: Autotransplantation of frozen-thawed ovarian tissue has proven to be an effective method to restore endocrine function and fertility. But it remains to be studied which site and which method is most effective and practical. We therefore implanted small pieces of cryopreserved ovarian tissues into different sites in rabbits to find the optimal position. METHODS: Fifteen New Zealand white female rabbits were randomly divided into three groups. In group 1, fresh ovarian tissues were implanted into the mesometrium and ovarian bursa. In group 2, cryopreserved ovarian tissues were implanted into the mesometrium and ovarian bursa. In group 3, cryopreserved ovarian tissues were implanted into the preserved ovary. RESULTS: There were no significant differences among the three groups as to the proportions of normal and morphologically changed follicles in implanted ovarian tissues. The implanted ovarian tissues in the three groups did not show any evident changes in histology and ultrastructure, and all resumed follicle development and revealed maturescent follicles. CONCLUSIONS: Cryopreservation and implantation of small pieces of ovarian tissues are feasible. Generally, the mesometrium, ovarian bursa and ovary are all available sites for implantation and have similar rates of acceptance, despite some differences in the details of implantation.
ISSN:0268-1161
1460-2350
DOI:10.1093/humrep/del430