Effect of Thawing Rate on Cryopreservation of Ovarian Tissue
Author Information
Author(s): Kong Qingduo, Todorov Plamen, Pei Cheng, Isachenko Evgenia, Rahimi Gohar, Mallmann-Gottschalk Nina, Isachenko Volodimir, Tesarik Jan
Primary Institution: Department of Obstetrics and Gynecology, Medical Faculty, Cologne University, Germany
Hypothesis
To explore the transcriptomic differences between fresh ovarian tissue and tissue cryopreserved with an elevated thawing rate.
Conclusion
Cryopreservation of ovarian tissue by the described method does not decrease follicle production but downregulates the ovarian steroidogenesis pathway, reducing estrogen and progesterone secretion.
Supporting Evidence
- More than 200 live births have been achieved using ovarian tissue cryopreservation.
- Quick thawing minimizes ice crystal formation and preserves cell structure.
- Transcriptomic analysis revealed significant differences in gene expression between fresh and cryopreserved ovarian tissue.
Takeaway
This study looks at how quickly thawing frozen ovarian tissue affects its health and ability to produce hormones. It found that faster thawing helps keep the tissue healthy.
Methodology
Ovarian tissue samples were collected and cryopreserved, followed by RNA sequencing and histological evaluation.
Limitations
The main limitation of the study is the small number of ovarian tissue samples due to ethical and clinical constraints.
Participant Demographics
Ovarian tissue fragments were obtained from patients involved in a fertility treatment program, all diagnosed with tumors, with a median age of 23.7 years.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website