The ovary of neonatal nonhuman primates contains the highest number of immature oocytes, but its cryopreservation has not yet been sufficiently investigated in all life stages. In the current study, we investigated cryodamage after vitrification/warming of neonatal ovaries from a nonhuman primate, the common marmoset (Callithrix jacchus). A Cryotop was used for cryopreservation of whole ovaries. The morphology of the vitrified/warmed ovaries was found to be equivalent to that of fresh ovaries. No significant difference in the number of oocytes retaining normal morphology per unit area in histological sections was found between the two groups. In an analysis of dispersed cells from the ovaries, however, the cell viability of the vitrified/warmed group tended to be decreased. The results of a comet assay showed no significant differences in DNA damage. These results show that cryopreservation of neonatal marmoset ovaries using vitrification may be useful as a storage system for whole ovaries.
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http://dx.doi.org/10.1538/expanim.15-0097 | DOI Listing |
J Obstet Gynaecol
December 2025
Department of Pediatrics, Obstetrics and Gynecology, Universitat de Valencia, Valencia, Spain.
Background: Research on fertility preservation among women diagnosed with lymphoma is very limited. We aimed to assess the receipt of fertility preservation information and use of fertility preservation among women diagnosed with lymphoma.
Methods: This was a retrospective, single-centre study.
Objective: Our study aimed to investigate the therapeutic effects of the Kuntai capsule in improving ovarian function in rats with transplantation of cryopreserved ovary.
Methods: Two mice ovary cell lines were cultured with Kuntai capsule decoction, and cell apoptosis was detected by MTT assay. A total of 90 SPF Sprague Dawley rats were included in this study.
PLoS One
January 2025
School of Life Science, Inner Mongolia University, Hohhot, PR China.
Ovarian tissue cryopreservation addresses critical challenges in fertility preservation for prepubertal female cancer patients, such as the lack of viable eggs and hormonal deficiencies. However, mitigating follicle and granulosa cell damage during freeze-thaw cycles remains an urgent issue. Luteinizing hormone (LH), upon binding to luteinizing hormone receptors (LHR) on granulosa cells, enhances estrogen synthesis and secretion, contributing to the growth of granulosa cells and follicles.
View Article and Find Full Text PDFLife Sci
February 2025
Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea; Institute of Agriculture and Life Science, Gyeongsang National University, Gyeongnam Province, Republic of Korea; Division of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea; The King Kong Corp. Ltd., Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea. Electronic address:
Telomerase is highly expressed in oocyte cumulus cells and plays a significant role in follicular development and oocyte maturation. In this study, we hypothesized that in vitro culture conditions may affect telomerase activity during in vitro embryo production (IVP) and that its activation may improve embryo quality. We first examined telomerase protein levels and localization in bovine cumulus-oocyte complexes via immunofluorescence assays.
View Article and Find Full Text PDFF S Rep
December 2024
Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada.
Objective: To report a patient with McCune-Albright syndrome (MAS) with bilateral ovarian involvement who had achieved a pregnancy through in vitro fertilization (IVF).
Design: Case report.
Setting: Academic fertility center.
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