Turkish journal of obstetrics and gynecology · 2025
Comparison of survival and apoptosis parameters of ovarian tissue follicles in two vitrification methods of needle-immersion and cryo-support in cancer patients.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Seify Mohammad, Khalili Mohammad Ali, Tafti Mojgan Hajisafari, Dashti Saeideh, Aminian Faezeh Sadat Khaje, Beigi Sayed Abbas Datli, Anbari Fatemeh
Аннотация
OBJECTIVE: Ovarian tissue (OT) cryopreservation is a useful technique for preserving fertility potential in women with cancer. Vitrification is a relatively new method. Several devices were discussed. Among these methods, cryo-support and needle-immersion vitrification (NIV) stand out as particularly popular. The aim of this study is the comparison of these devices in terms of follicle quality and DNA status.
MATERIALS AND METHODS: The OT from 20 cancer patients was transferred with Dulbecco's Phosphate-Buffered Saline supplemented with 5% serum and maintained at 4 °C for 1 hour. After preparation of OT vitrified by two freezing solutions with different concentrations of cryoprotectant, small fragments of OT (~5×1×1 mm) were attached to an insulin needle, and in another group, the tissue fragments (~5×5×1 mm) were loaded onto the Ova Cryo Device Type M, also called cryo-support, and placed in liquid nitrogen. After warming, small tissue pieces were prepared to assess the quality of primordial, primary, and secondary follicles using eosin-hematoxylin staining. An immune-histochemical investigation, including anti-p53 and anti-Caspase 3, was conducted to examine the apoptosis pathway.
RESULTS: The data showed a larger number of high-quality follicles in the cryo-support group (p<0.05). Also, the level of apoptosis (p53) molecules is higher in the NIV method (p<0.05). However, the levels of caspase 3 were not significantly different between the NIV approach and the cryo-support vitrification group.
CONCLUSION: A recent study revealed that the cryo-support device is more effective in increasing high-quality follicles and reducing p53, which is associated with early stages of apoptosis. This device may improve clinical outcomes and may be recommended for cryopreservation programs.
MATERIALS AND METHODS: The OT from 20 cancer patients was transferred with Dulbecco's Phosphate-Buffered Saline supplemented with 5% serum and maintained at 4 °C for 1 hour. After preparation of OT vitrified by two freezing solutions with different concentrations of cryoprotectant, small fragments of OT (~5×1×1 mm) were attached to an insulin needle, and in another group, the tissue fragments (~5×5×1 mm) were loaded onto the Ova Cryo Device Type M, also called cryo-support, and placed in liquid nitrogen. After warming, small tissue pieces were prepared to assess the quality of primordial, primary, and secondary follicles using eosin-hematoxylin staining. An immune-histochemical investigation, including anti-p53 and anti-Caspase 3, was conducted to examine the apoptosis pathway.
RESULTS: The data showed a larger number of high-quality follicles in the cryo-support group (p<0.05). Also, the level of apoptosis (p53) molecules is higher in the NIV method (p<0.05). However, the levels of caspase 3 were not significantly different between the NIV approach and the cryo-support vitrification group.
CONCLUSION: A recent study revealed that the cryo-support device is more effective in increasing high-quality follicles and reducing p53, which is associated with early stages of apoptosis. This device may improve clinical outcomes and may be recommended for cryopreservation programs.