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Jiang P, Hu S, Zheng C, Liu Y, Zhang Q, Dou L. Cryopreservation of human teeth using vitrification method with cryoprotectant cocktails and N-acetylcysteine for banking and clinical applications. Cryobiology 2024; 117:104959. [PMID: 39182712 DOI: 10.1016/j.cryobiol.2024.104959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/18/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
Preserving freshly-extracted healthy human teeth offers an optional resource for potential tooth transplantation and cell therapy. This study aimed to assess the impact of vitrification, utilizing a blend of cryoprotectant agents and N-acetylcysteine (NAC), on the cryopreservation of periodontal ligament tissues, and investigate the underlying mechanisms of NAC on the tooth cryopreservation. Periodontal ligament cells were isolated from freshly-extracted healthy human permanent teeth, and cell sheets of PDLCs were fabricated. The samples including cell sheets, freshly-extracted human and rat teeth were cryopreserved with or without NAC for three months. The viability, ROS level, gene expressions and microstructure of PDLCs within cell sheets were assessed. The expression of SOD-2, Caspase3, LC3A/B and Catalase were evaluated through western blotting. Histological assessments of cryopreserved cell sheets and teeth were conducted. PDLCs were isolated from cryopreserved teeth, and their immunophenotype and differentiation ability were evaluated. The data was analyzed using one-way analysis of variance. The vitrification method showed good performance in preserving the viability and differentiation potential of PDLCs. Cryopreservation supplemented with NAC improved the survival rate of PDLCs, enhanced osteogenic differentiation ability, upregulated the expression of SOD-2 and Catalase, and inhibited cell apoptosis. Additionally, mRNA sequencing analysis revealed a significant activation of the PI3K-AKT pathway following cryopreservation via vitrification. Adding a PI3K-AKT activator improved the survival rates of PDLCs post-cryopreservation. The vitrification strategy combining various CPAs and NAC proved to be feasible for tooth cryopreservation. Targeting the PI3K-AKT pathway may improve the efficacy of tooth cryopreservation.
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Affiliation(s)
- Peiru Jiang
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Shan Hu
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chengxiang Zheng
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yinzhuo Liu
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Qixuan Zhang
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Lei Dou
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
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Alon I, Bussod I, Golan OC, Ravitsky V. Mapping ethical, legal, and social implications (ELSI) of fertility preservation. J Assist Reprod Genet 2024; 41:2495-2514. [PMID: 39141169 PMCID: PMC11405582 DOI: 10.1007/s10815-024-03210-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 07/17/2024] [Indexed: 08/15/2024] Open
Abstract
RESEARCH QUESTION The study examines the ethical, legal, and social implications of fertility preservation, highlighting its importance across oncofertility, elective egg freezing, and posthumous assisted reproduction, as well as its impact on transgender individuals undergoing gender-affirming surgeries. DESIGN A comprehensive analysis of 600 articles, focusing on a diverse range of disciplines, including bioethics, psychology, and sociology, to explore public and healthcare professionals' knowledge, patient experiences, and regulatory constraints. RESULTS The body of literature is growing, indicating increasing recognition of FP's significance. Key themes included the centrality of counseling and informed decision-making, especially in oncofertility and EEF, and ethical debates surrounding informed consent and the autonomy of involved individuals. The analysis underscored a western-centric bias in current research, emphasizing the need for more inclusive and culturally sensitive studies. CONCLUSIONS The study calls for a nuanced understanding of FP, advocating for policies that consider ethical, cultural, and social dimensions. It suggests the necessity for interdisciplinary research to address identified gaps, particularly in understanding non-Western perspectives and ensuring equitable access to FP services globally. Moreover, the review emphasizes the importance of integrating patient-centric approaches and ethical frameworks to guide FP practices and policies, ensuring they respect diverse values and meet individuals' needs.
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Affiliation(s)
- Ido Alon
- Department of Development Economics, Autonomous University of Madrid, Madrid, Spain.
- University of Montreal, Montreal, Canada.
| | | | - Orit Cherny Golan
- University of Montreal, Montreal, Canada
- Yezreel Valley College, Yezreel Valley, Israel
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3
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Alon I, Cassou M, Golan OC, Ravitsky V. Mapping Ethical, Legal, and Social Implications (ELSI) of gamete donation. J Assist Reprod Genet 2024:10.1007/s10815-024-03229-z. [PMID: 39183224 DOI: 10.1007/s10815-024-03229-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 08/08/2024] [Indexed: 08/27/2024] Open
Abstract
RESEARCH QUESTION This scoping review investigates the Ethical, Legal, and Social Implications (ELSI) of gamete donation, a critical facet of Assisted Reproductive Technologies, by analyzing the evolving research scope, methodological approaches, and the geographical skew in the literature. Despite the increased global uptake of donor gametes, current scholarship predominantly emanates from Western contexts and focuses on majoritized groups. This bias constrains the universality of research findings and limits their applicability across varied legal, cultural, and social contexts, underscoring a need for broader inclusivity. DESIGN We addressed 867 pivotal articles published between 1999 and 2019. RESULTS Our analysis reveals a discernible escalation in research volume, with 62% based on empirical research. The intellectual landscape unfolds into four dominant clusters: Regulatory Frameworks, Incentives, and Access; Family Dynamics and Genetic Linkages; Identity and Privacy in Donor Conception; and Cultural and Societal Attitudes towards GD. Each cluster highlights nuanced dimensions of gamete donation, from regulatory intricacies and psychological welfare to identity ethics and cultural perceptions. CONCLUSION Our findings advocate for a shift towards more globally representative and methodologically inclusive research. By integrating diverse cultural narratives and expanding geographical breadth, future research can offer holistic understandings of gamete donation, fostering equitable and culturally resonant practices and policies worldwide.
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Affiliation(s)
- Ido Alon
- Department of Development Economics, Autonomous University of Madrid, Madrid, Spain.
- University of Montreal, Montreal, Canada.
| | | | - Orit Cherny Golan
- University of Montreal, Montreal, Canada
- Yezreel Valley College, Yezreel Valley, Israel
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Li X, Zhang S, Zhang Y, Zhou X. Visualization of Ice Crystal Behavior in Mouse Oocytes During High-Speed Quench Cooling and Ice Inhibition by Antifreezing Hydrogels. Biopreserv Biobank 2024; 22:404-412. [PMID: 38484300 DOI: 10.1089/bio.2023.0108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024] Open
Abstract
Oocyte vitrification has become a widely adopted method in clinical practice. However, the solidification behavior and its impact on oocytes during the ultrarapid cooling process remain poorly understood. In this study, we established a system and methodology to observe crystallization behavior in oocytes during quench cooling and warming. Subsequently, the threshold concentration of cryoprotective agents (CPAs) required for oocyte vitrification was determined through a visualization method. The results demonstrated that the ice front could not be observed in the image sequence when using 16.5% DMSO +16.5% EG during high-speed quench cooling (2821.58°C/min). Finally, oocytes were encapsulated with an antifreezing hydrogel (7.5% EG +7.5% DMSO +0.5% alginate) and subjected to high-speed quench cooling. No ice crystals appeared in the antifreezing hydrogel-encapsulated oocytes at a low concentration of osmotic CPA (2.4 M). This research opens up new possibilities for oocyte vitrification with a reduced concentration of CPA.
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Affiliation(s)
- Xin Li
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Co-Innovation Center for Energy Therapy of Tumors, Shanghai, China
- Shanghai Technical Service Platform for Cryopreservation of Biological Resources, Shanghai, China
| | - Shuyong Zhang
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Co-Innovation Center for Energy Therapy of Tumors, Shanghai, China
- Shanghai Technical Service Platform for Cryopreservation of Biological Resources, Shanghai, China
| | - Yuqi Zhang
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Co-Innovation Center for Energy Therapy of Tumors, Shanghai, China
- Shanghai Technical Service Platform for Cryopreservation of Biological Resources, Shanghai, China
| | - Xinli Zhou
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Co-Innovation Center for Energy Therapy of Tumors, Shanghai, China
- Shanghai Technical Service Platform for Cryopreservation of Biological Resources, Shanghai, China
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Cho JR, Yu EH, Lee HJ, Kim IH, Jeong JH, Lee DB, Cho SK, Joo JK. Ultra-Fast Vitrification: Minimizing the Toxicity of Cryoprotective Agents and Osmotic Stress in Mouse Oocyte Cryopreservation. Int J Mol Sci 2024; 25:1884. [PMID: 38339162 PMCID: PMC10856457 DOI: 10.3390/ijms25031884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
Globally, women have been adopting oocyte cryopreservation (OC) for fertility preservation for various reasons, such as inevitable gonadotoxic treatment for specific pathologic states and social preferences. While conventional vitrification (C-VIT) has improved the success rate of OC, challenges of possible toxicities of high-concentration cryoprotective agents and osmotic stress persist. To overcome these challenges, we evaluated the ultra-fast vitrification (UF-VIT) method, which reduces the equilibration solution stage exposure time compared to C-VIT by observing mouse oocyte intracellular organelles and embryonic development. Consequently, compared to fresh mouse oocytes, UF-VIT presented significant differences only in endoplasmic reticulum (ER) intensity and mitochondrial (MT) distribution. Meanwhile, C-VIT showed substantial differences in the survival rate, key ER and MT parameters, and embryonic development rate. UF-VIT exhibited considerably fewer negative effects on key MT parameters and resulted in a notably higher blastocyst formation rate than C-VIT. Meiotic spindle (spindle and chromosomes) morphology showed no significant changes between the groups during vitrification/warming (VW), suggesting that VW did not negatively affect the meiotic spindle of the oocytes. In conclusion, UF-VIT seems more effective in OC owing to efficient cytoplasmic water molecule extraction, osmotic stress reduction, and minimization of cell contraction and expansion amplitude, thus compensating for the drawbacks of C-VIT.
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Affiliation(s)
- Jung-Ran Cho
- Infertility Center of Pusan National University Hospital, Busan 49241, Republic of Korea; (J.-R.C.); (J.-H.J.); (D.-B.L.)
- Laboratory of Animal Reproductive Physiology & Biotechnology, Department of Animal Science, Pusan National University Graduate School, Miryang 50463, Republic of Korea
| | - Eun-Hee Yu
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
| | - Hyun-Joo Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
| | - In-Hye Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
| | - Ji-Hye Jeong
- Infertility Center of Pusan National University Hospital, Busan 49241, Republic of Korea; (J.-R.C.); (J.-H.J.); (D.-B.L.)
- Laboratory of Animal Reproductive Physiology & Biotechnology, Department of Animal Science, Pusan National University Graduate School, Miryang 50463, Republic of Korea
| | - Dan-Bi Lee
- Infertility Center of Pusan National University Hospital, Busan 49241, Republic of Korea; (J.-R.C.); (J.-H.J.); (D.-B.L.)
| | - Seong-Keun Cho
- Laboratory of Animal Reproductive Physiology & Biotechnology, Department of Animal Science, Pusan National University Graduate School, Miryang 50463, Republic of Korea
| | - Jong-Kil Joo
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
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Zhao X, Dilixiati A, Zhang L, Aihemaiti A, Song Y, Zhao G, Fu X, Wang X, Wusiman A. Mito-TEMPO Improves the Meiosis Resumption and Mitochondrial Function of Vitrified Sheep Oocytes via the Recovery of Respiratory Chain Activity. Animals (Basel) 2024; 14:152. [PMID: 38200883 PMCID: PMC10778259 DOI: 10.3390/ani14010152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/27/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
Vitrification is a crucial method for preserving animal germ cells. Considering the increased oxidative stress and organelle damage incurred, it is still necessary to make the process more efficient for oocytes. As the energy source of oocytes, mitochondria are the most abundant organelle in oocytes and play a crucial role in their maturation. Here, we found that Mito-TEMPO, a mitochondria-targeted antioxidant, could efficaciously improve the oxidative stress injury of vitrified oocytes by recovering mitochondrial function via the mitochondrial respiratory chain. It was observed that Mito-TEMPO not only improves oocyte viability and meiosis but also maintains spindle structure. A subsequent study indicated that Mito-TEMPO effectively rescued mitochondrial dysfunction and attenuated vitrification-induced oxidative stress. Further investigation revealed that Mito-TEMPO regulates vitrified oocytes' intracellular Ca2+ homeostasis and ATP content and provides strong antioxidant properties. Additionally, an analysis of the transcriptome at the single-cell level revealed that the respiratory chain mediates the beneficial effect of Mito-TEMPO on vitrified oocytes. Overall, our findings indicate that supplementing oocytes with Mito-TEMPO is an effective method to shield them from the damage caused by vitrification. In addition, the beneficial effects of Mito-TEMPO on vitrified sheep oocytes could inspire further investigations of the principles underlying oocyte cryobiology in other animals.
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Affiliation(s)
- Xi Zhao
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Airixiati Dilixiati
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Luyao Zhang
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China
| | - Aikebaier Aihemaiti
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Yukun Song
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Guodong Zhao
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Xiangwei Fu
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China
| | - Xuguang Wang
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Abulizi Wusiman
- Department of Animal Science, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
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Şimşek S, Erdogan E. The Effects of Silymarin Supplementation on Post-Thawed Human Sperm Functional Parameters. Biopreserv Biobank 2023; 21:569-575. [PMID: 36383149 DOI: 10.1089/bio.2022.0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study investigated the effect of silymarin on human sperm quality during cryopreservation. Samples were collected from 20 normospermic individuals, and each sample was divided into different concentrations of silymarin comprising the following groups: (0, 20, 100, 500, and 1000 μg/mL silymarin). Sperm quality parameters, such as plasma membrane integrity, mitochondrial membrane potential, acrosomal membrane integrity, and caspase 3 were estimated. Silymarin concentrations of 100-500 μg/mL significantly increased motility, plasma membrane integrity, and mitochondrial activity compared with the frozen control group. Acrosomal integrity was increased in the 1000 μg/mL silymarin group. Moreover, 20 and 100 μg/mL concentrations significantly decreased the percentage of caspase 3. The addition of silymarin antioxidant to the frozen medium reduced damage in the sperm after freezing and thawing. This is the first study that showed silymarin can be useful in cryopreservation of human sperm.
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Affiliation(s)
- Seda Şimşek
- Department of Histology and Embryology, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Ender Erdogan
- Department of Histology and Embryology, Faculty of Medicine, Selcuk University, Konya, Turkey
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Somoskői B, Bordás L, Uno F, Kispál D, Müller L, Török D, Cseh S. Effects of different cryopreservation methods on canine isolated preantral follicles. Anim Reprod Sci 2023; 258:107361. [PMID: 37890201 DOI: 10.1016/j.anireprosci.2023.107361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023]
Abstract
The aim of the present study was to compare the survival and developmental rate of canine isolated preantral follicles (PAFs) after cryopreservation with different methods (closed vs open vitrification). Follicles were isolated from ovaries randomly divided into three groups: fresh control, OPS (open pulled straw) vitrified and cryotube (CT) vitrified. Post-thaw viability of follicles and oocytes was assessed. Fresh and vitrified/thawed PAFs were cultured in 20 µl drops of FSH-supplemented medium for 10 days. Follicular growth, survival rate, estradiol production and ovulation rate were examined. CT method resulted in lower rate of live cells (58.7%) and oocytes (38.8%) than that of fresh ones (83.6% and 64%, respectively) and OPS (80.3% and 79.3%, respectively). Survival rate was similar to fresh follicles in OPS group (98.5% and 95.4%, respectively), while CT decreased the survival to 81.2%. Fresh follicles showed continuous growth, while CT follicles stopped to increase their size after 2 day. In the OPS vitrified follicles, this halting occurred between Day5 and Day10. Fresh follicles showed the highest estradiol production (range: 26.9 - 266.2 pg/ml). Comparing the two vitrified groups, lower estradiol concentration range was measured in the CT group (7.8-48.7 pg/ml vs. 15.4-89.6 pg/ml). Ovulation rate in each group was lowest in the OPS group (1.7% vs 7% and 8.9% in fesh and CT, respectively). Our data show that OPS vitrification provides superior survival rate, in vitro growth and hormonal production to CT. To our knowledge, these are the first results on comparing different cryopreservation protocols on canine isolated preantral follicles.
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Affiliation(s)
- Bence Somoskői
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Lilla Bordás
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Fusa Uno
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Dóra Kispál
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Linda Müller
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Dóra Török
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Sándor Cseh
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
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Fu X, Zhang Y, Gao S, Gao S, Zhang M, Gao S, Ma J, Chen ZJ. Efficiency and safety of vitrification of surplus oocytes following superovulation: a comparison of different clinical indications of oocyte cryopreservation in IVF/ICSI cycles. Front Endocrinol (Lausanne) 2023; 14:1221308. [PMID: 37867517 PMCID: PMC10585140 DOI: 10.3389/fendo.2023.1221308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/02/2023] [Indexed: 10/24/2023] Open
Abstract
Objective To evaluate the effectiveness and safety of utilizing the small number of remaining vitrified oocytes after the failure of adequate fresh sibling oocytes. The outcome of present study would provide more comprehensive information about possible benefits or disadvantage to cryopreserve supernumerary oocytes for patients who have plenty oocytes retrieved. Methods This retrospective cohort study included 791 IVF/ICSI cycles using 6344 oocytes that had been vitrified in the Reproductive Hospital affiliated to Shandong University between January 2013 and December 2019.They were divided into three groups: SOC group (supernumerary oocytes cryopreservation), relative-MOC group (relative male factor-oocyte cryopreservation), and absolute-MOC group (absolute male factor-oocyte cryopreservation). Laboratory and clinical outcomes were analysed, and multivariate regression analysis was used to study the effect of different indications of vitrification on CLBR. Results The CLBR was highest in absolute-MOC, and lowest in SOC (39.0% vs 28.9%, P=0.006); however, after adjusting for confounding factors, the difference was not statistically significant. Multivariable regression analysis showed no impact of indications of vitrified oocytes on CLBR according to controlled age, BMI, preservation duration, use of donor sperm or not, use of PESA/TESA or not, number of oocytes retrieved, number of oocytes thawed, and oocyte survival rate. The preliminary data of safety showed no significant differences in the perinatal and neonatal outcoms after ET and FET between the SOC and MOC groups. Conclusion Different indications of vitrification did not affect CLBR. The CLBR of vitrified oocytes for different indications was correlated with age and number of warmed oocytes. For women who have plenty oocytes retrieved, the strategy of cryopreserving a small number of oocytes is a valuable option and might benefit them in the future. Additional data from autologous oocyte vitrification research employing a large-scale and variable-controlled methodology with extending follow-up will complement and clarify the current results.
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Affiliation(s)
- Xiao Fu
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Yiting Zhang
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shuli Gao
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shuzhe Gao
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Meng Zhang
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shanshan Gao
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Jinlong Ma
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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10
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Lahoti U, Pajai S, Shegekar T, Juganavar A. Exploring the Landscape of Social Egg Freezing: Navigating Medical Advancements, Ethical Dilemmas, and Societal Impacts. Cureus 2023; 15:e47956. [PMID: 38034211 PMCID: PMC10685323 DOI: 10.7759/cureus.47956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
This narrative review article comprehensively explores the multifaceted landscape of social egg freezing, delving into its medical, ethical, societal, psychological, legal, and cultural dimensions. Oocyte cryopreservation, a developing procedure, gives women the chance to match their life goals with fertility goals. Informed decision-making, morally sound guidance, and open communication are all stressed by ethical considerations. Family planning practices, workplace cultures, and gender equality all have an impact on societal dynamics. The process's emotional toll and associated coping mechanisms are highlighted by psychological elements. Legal and policy frameworks need constant ethical reflection and understanding of the regulatory environment. Religious and cultural views highlight the variety of perspectives that influence attitudes toward this practice. For responsible practice to ensure individual liberty while navigating the evolving landscape of reproductive options, it is essential to comprehend how these aspects interact.
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Affiliation(s)
- Udit Lahoti
- Obstretics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sandhya Pajai
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Tejas Shegekar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Anup Juganavar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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11
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Huang Z, Liu W, Ma T, Zhao H, He X, Liu B. Slow Cooling and Controlled Ice Nucleation Enabling the Cryopreservation of Human T Lymphocytes with Low-Concentration Extracellular Trehalose. Biopreserv Biobank 2023; 21:417-426. [PMID: 36001824 DOI: 10.1089/bio.2022.0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cryopreservation of human T lymphocytes has become a key strategy for supporting cell-based immunotherapy. However, the effects of ice seeding on the cryopreservation of cells under relatively slow cooling have not been well researched. The cryopreservation strategy with a nontoxic, single-ingredient, and injectable cryoprotective solution remains to be developed. We conducted ice seeding for the cells in a solution of normal saline with 1% (v/v) dimethyl sulfoxide (Me2SO), 0.1 M trehalose, and 4% (w/v) human serum albumin (HSA) under different slow cooling rates. With the positive results, we further applied seeding in the solution of 0.2 M trehalose and 4% (w/v) HSA under the same cooling rates. The optimal concentration of trehalose in the Me2SO-free solutions was then investigated under the optimized cooling rate with seeding, with control groups without seeding, and in a freezing container. In vitro toxicity of the cryoprotective solutions to the cells was also tested. We found that the relative viability of cells (1% [v/v] Me2SO, 0.1 M trehalose and 4% [w/v] HSA) was improved significantly from 88.6% to 94.1% with ice seeding, compared with that without seeding (p < 0.05). The relative viability of cells (0.2 M trehalose and 4% [w/v] HSA) with seeding was significantly higher than that without seeding, 96.3% and 92.0%, respectively (p < 0.05). With no significant difference in relative viability between the solutions of 0.2 M trehalose or 0.3 M trehalose with 4% (w/v) HSA (92.4% and 94.6%, respectively, p > 0.05), the solution of 0.2 M trehalose and 4% (w/v) HSA was selected as the optimized Me2SO-free solution. This strategy could cryopreserve human T lymphocytes without any toxic cryoprotectant and boost the application of cell products in humans by intravenous injection, with the osmolality of the low-concentration cryoprotective solution close to that of human plasma.
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Affiliation(s)
- Zhiyong Huang
- Institute of Bio-Thermal Science and Technology, University of Shanghai for Science and Technology, Shanghai, China
| | - Wei Liu
- Institute of Bio-Thermal Science and Technology, University of Shanghai for Science and Technology, Shanghai, China
| | | | | | - Xiaowen He
- Origincell Technology Group Co., Shanghai, China
| | - Baolin Liu
- Institute of Bio-Thermal Science and Technology, University of Shanghai for Science and Technology, Shanghai, China
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12
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Bilgory A, Atzmon Y, Aslih N, Shibli Abu Raya Y, Sharqawi M, Shavit M, Estrada D, Shalom-Paz E. Ovulatory-cycle frozen embryo transfer: spontaneous or triggered ovulation and the impact of LH elevation at hCG triggering. Sci Rep 2023; 13:7195. [PMID: 37137911 PMCID: PMC10156802 DOI: 10.1038/s41598-023-34017-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 04/22/2023] [Indexed: 05/05/2023] Open
Abstract
The effect of the luteinizing hormone (LH) elevation before the human chorionic gonadotropin (hCG) trigger in ovulatory frozen-thawed embryo transfer (Ovu-FET) cycles has not been determined. We aimed to investigate whether triggering ovulation in Ovu-FET cycles affects the live birth rate (LBR), and the contribution of elevated LH at the time of hCG trigger. This retrospective study included Ovu-FET cycles performed in our center from August 2016 to April 2021. Modified Ovu-FET (hCG trigger) and true Ovu-FET (without hCG trigger) were compared. The modified group was divided according to whether hCG was administered, before or after LH increased to > 15 IU/L and was twice the baseline value. The modified (n = 100) and true (n = 246) Ovu-FET groups and both subgroups of the modified Ovu-FET, those who were triggered before (n = 67) or after (n = 33) LH elevation, had comparable characteristics at baseline. Comparison of true vs. modified Ovu-FET outcomes revealed similar LBR (35.4% vs. 32.0%; P = 0.62), respectively. LBR were similar between the modified Ovu-FET subgroups regardless of the hCG trigger timing (31.3% before vs. 33.3% after LH elevation; P = 0.84). In conclusion, LBR of Ovu-FET were not affected by hCG trigger or whether LH was elevated at the time of hCG trigger. These results add reassurance regarding hCG triggering even after LH elevation.
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Affiliation(s)
- Asaf Bilgory
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel.
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel.
| | - Yuval Atzmon
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
| | - Nardin Aslih
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
| | - Yasmin Shibli Abu Raya
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
| | - Moamina Sharqawi
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
| | - Maya Shavit
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
| | - Daniela Estrada
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
| | - Einat Shalom-Paz
- IVF Unit, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera, Israel
- Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel
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13
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Antonouli S, Di Nisio V, Messini C, Daponte A, Rajender S, Anifandis G. A comprehensive review and update on human fertility cryopreservation methods and tools. Front Vet Sci 2023; 10:1151254. [PMID: 37143497 PMCID: PMC10151698 DOI: 10.3389/fvets.2023.1151254] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/29/2023] [Indexed: 05/06/2023] Open
Abstract
The broad conceptualization of fertility preservation and restoration has become already a major concern in the modern western world since a large number of individuals often face it in the everyday life. Driven by different health conditions and/or social reasons, a variety of patients currently rely on routinely and non-routinely applied assisted reproductive technologies, and mostly on the possibility to cryopreserve gametes and/or gonadal tissues for expanding their reproductive lifespan. This review embraces the data present in human-focused literature regarding the up-to-date methodologies and tools contemporarily applied in IVF laboratories' clinical setting of the oocyte, sperm, and embryo cryopreservation and explores the latest news and issues related to the optimization of methods used in ovarian and testicular tissue cryopreservation.
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Affiliation(s)
- Sevastiani Antonouli
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Valentina Di Nisio
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Christina Messini
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
| | - Alexandros Daponte
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
| | - Singh Rajender
- Division of Endocrinology, Central Drug Research Institute, Lucknow, India
| | - George Anifandis
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
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14
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Choi HW, Jang H. Application of Nanoparticles and Melatonin for Cryopreservation of Gametes and Embryos. Curr Issues Mol Biol 2022; 44:4028-4044. [PMID: 36135188 PMCID: PMC9497981 DOI: 10.3390/cimb44090276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/02/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Cryopreservation of gametes and embryos, a technique widely applied in human infertility clinics and to preserve desirable genetic traits of livestock, has been developed over 30 years as a component of the artificial insemination process. A number of researchers have conducted studies to reduce cell toxicity during cryopreservation using adjuvants leading to higher gamete and embryo survival rates. Melatonin and Nanoparticles are novel cryoprotectants and recent studies have investigated their properties such as regulating oxidative stresses, lipid peroxidation, and DNA fragmentation in order to protect gametes and embryos during vitrification. This review presented the current status of cryoprotectants and highlights the novel biomaterials such as melatonin and nanoparticles that may improve the survivability of gametes and embryos during this process.
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Affiliation(s)
- Hyun-Woo Choi
- Department of Animal Science, Jeonbuk National University, Jeonju 54896, Korea
| | - Hoon Jang
- Department of Life Sciences, Jeonbuk National University, Jeonju 54896, Korea
- Correspondence: ; Tel.: +82-63-270-3359
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15
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Yagoub SH, Lim M, Tan TCY, Chow DJX, Dholakia K, Gibson BC, Thompson JG, Dunning KR. Vitrification within a nanoliter volume: oocyte and embryo cryopreservation within a 3D photopolymerized device. J Assist Reprod Genet 2022; 39:1997-2014. [PMID: 35951146 PMCID: PMC9474789 DOI: 10.1007/s10815-022-02589-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose Vitrification permits long-term banking of oocytes and embryos. It is a technically challenging procedure requiring direct handling and movement of cells between potentially cytotoxic cryoprotectant solutions. Variation in adherence to timing, and ability to trace cells during the procedure, affects survival post-warming. We hypothesized that minimizing direct handling will simplify the procedure and improve traceability. To address this, we present a novel photopolymerized device that houses the sample during vitrification. Methods The fabricated device consisted of two components: the Pod and Garage. Single mouse oocytes or embryos were housed in a Pod, with multiple Pods docked into a Garage. The suitability of the device for cryogenic application was assessed by repeated vitrification and warming cycles. Oocytes or early blastocyst-stage embryos were vitrified either using standard practice or within Pods and a Garage and compared to non-vitrified control groups. Post-warming, we assessed survival rate, oocyte developmental potential (fertilization and subsequent development) and metabolism (autofluorescence). Results Vitrification within the device occurred within ~ 3 nL of cryoprotectant: this volume being ~ 1000-fold lower than standard vitrification. Compared to standard practice, vitrification and warming within our device showed no differences in viability, developmental competency, or metabolism for oocytes and embryos. The device housed the sample during processing, which improved traceability and minimized handling. Interestingly, vitrification-warming itself, altered oocyte and embryo metabolism. Conclusion The Pod and Garage system minimized the volume of cryoprotectant at vitrification—by ~ 1000-fold—improved traceability and reduced direct handling of the sample. This is a major step in simplifying the procedure.
Supplementary information The online version contains supplementary material available at 10.1007/s10815-022-02589-8.
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Affiliation(s)
- Suliman H Yagoub
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia.,School of Biomedicine, Robinson Research Institute, University of Adelaide, Adelaide, South Australia, 5005, Australia.,Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - Megan Lim
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia.,School of Biomedicine, Robinson Research Institute, University of Adelaide, Adelaide, South Australia, 5005, Australia.,Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - Tiffany C Y Tan
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia.,School of Biomedicine, Robinson Research Institute, University of Adelaide, Adelaide, South Australia, 5005, Australia.,Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - Darren J X Chow
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia.,School of Biomedicine, Robinson Research Institute, University of Adelaide, Adelaide, South Australia, 5005, Australia.,Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - Kishan Dholakia
- School of Physics and Astronomy, University of St Andrews, North Haugh, Scotland, KY16 9SS.,School of Biological Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia.,Department of Physics, College of Science, Yonsei University, Seoul, 03722, South Korea
| | - Brant C Gibson
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia.,School of Science, RMIT, Melbourne, VIC, 3001, Australia
| | - Jeremy G Thompson
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia.,School of Biomedicine, Robinson Research Institute, University of Adelaide, Adelaide, South Australia, 5005, Australia.,Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, South Australia, 5000, Australia.,Fertilis Pty Ltd, Adelaide, South Australia, 5005, Australia
| | - Kylie R Dunning
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, South Australia, 5000, Australia. .,School of Biomedicine, Robinson Research Institute, University of Adelaide, Adelaide, South Australia, 5005, Australia. .,Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, Adelaide, South Australia, 5000, Australia.
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16
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Muharam R, Umami EA, Gunardi H. IVF-conceived children outcome from birth to 3 years at a single IVF center in Indonesia: frozen versus fresh embryo transfer. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2022. [DOI: 10.1186/s43043-022-00103-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Frozen embryo transfer procedure is becoming more common in assisted reproduction technology. The effect of this technology is still not yet well studied in developing countries with limited resources, including Indonesia. This study explores the clinical outcomes between frozen and fresh embryo transfer-conceived children aged 0–3 years in Indonesia.
Results
The participants were divided into frozen embryo (n = 30) and fresh embryo (n = 30) transfer groups. There were no differences in growth and development. However, in vitro fertilization (IVF) children with frozen embryo transfer had a lower risk of developing low birth weight compared to the fresh embryo group with an OR of 0.17 (95% CI: 0.03–0.85). All children, both in the fresh and frozen embryos, have normal development.
Conclusions
Frozen versus fresh embryo transfer does not affect child growth and development.
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17
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McClam M, Xiao S. Preserving Oocytes in Oncofertility†. Biol Reprod 2022; 106:328-337. [PMID: 35040934 PMCID: PMC8862718 DOI: 10.1093/biolre/ioac008] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/09/2021] [Accepted: 01/13/2022] [Indexed: 01/19/2023] Open
Abstract
The prodigious rise of cancer survival rates enables many cancer survivors to live long lives. Therefore, the side effects of cancer treatments as well as the long-term quality of life after cancer have become more relevant. Ovarian toxicity is a major off-target effect of anticancer agents for childhood and young adult female cancer patients. Both chemotherapy and irradiation have been demonstrated to damage the ovary and increase the risks of premature ovarian failure (POF), early menopause, ovarian endocrine disorders, and sub- or infertility. Oncofertility is an emerging and multidisciplinary research and medical field that focuses on providing cancer patients with fertility preservation options. Oocyte quality and quantity are one of the most important factors to determine women's fertility success; therefore, preserving oocytes is paramount for maintaining the ability of young female cancer patients' reproduction after their recovery. This review summarizes peer-reviewed literature on current oocyte preservation options in oncofertility. We describe in-depth oocyte and embryo cryopreservation, ovarian suppression, ovarian tissue cryopreservation, in vitro maturation, ovarian transposition, and adjuvant therapy. Further, we discuss current guidelines and practices of female fertility preservation that cover preserving oocytes.
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Affiliation(s)
- Maria McClam
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Shuo Xiao
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, NJ, USA,Correspondence: 170 Frelinghuysen Rd, Piscataway, NJ 08854, USA. Tel: + 1-848-445-3729; E-mail:
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18
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Srirattana K, Hufana‐Duran D, Atabay EP, Duran PG, Atabay EC, Lu K, Liang Y, Chaikhun‐Marcou T, Theerakittayakorn K, Parnpai R. Current status of assisted reproductive technologies in buffaloes. Anim Sci J 2022; 93:e13767. [PMID: 36123790 PMCID: PMC9787342 DOI: 10.1111/asj.13767] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/05/2022] [Accepted: 08/25/2022] [Indexed: 12/30/2022]
Abstract
Buffaloes are raised by small farm holders primarily as source of draft power owing to its resistance to hot climate, disease, and stress conditions. Over the years, transformation of these animals from draft to dairy was deliberately carried out through genetic improvement program leading to the development of buffalo-based enterprises. Buffalo production is now getting more attention and interest from buffalo raisers due to its socioeconomic impact as well as its contribution to propelling the livestock industry in many developing countries. Reproduction of buffaloes, however, is confronted with huge challenge and concern as being generally less efficient to reproduce compared with cattle due to both intrinsic and extrinsic factors such as poor estrus manifestation, silent heat, marked seasonal infertility, postpartum anestrus, long calving interval, delayed puberty, inherently low number of primordial follicles in their ovaries, high incidence of atresia, and apoptosis. Assisted reproductive technologies (ARTs) are major interventions for the efficient utilization of follicle reserve in buffaloes. The present review focuses on estrus and ovulation synchronization for fixed time artificial insemination, in vitro embryo production, intracytoplasmic sperm injection, cryopreservation of oocytes and embryos, somatic cell nuclear transfer, the factors affecting utilization in various ARTs, and future perspectives in buffaloes.
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Affiliation(s)
- Kanokwan Srirattana
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhon RatchasimaThailand
| | - Danilda Hufana‐Duran
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines,Department of Animal ScienceCentral Luzon State UniversityScience City of MunozNueva EcijaPhilippines
| | - Eufrocina P. Atabay
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines
| | - Peregrino G. Duran
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines,Department of Animal ScienceCentral Luzon State UniversityScience City of MunozNueva EcijaPhilippines
| | - Edwin C. Atabay
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines,Department of Animal ScienceCentral Luzon State UniversityScience City of MunozNueva EcijaPhilippines
| | - Kehuan Lu
- Animal Reproduction InstituteGuangxi UniversityNanningGuangxiChina
| | - Yuanyuan Liang
- Department of Reproductive MedicineLiuzhou General HospitalLiuzhouGuangxiChina
| | - Thuchadaporn Chaikhun‐Marcou
- Obstetrics Gynecology Andrology and Animal Biotechnology Clinic, Faculty of Veterinary MedicineMahanakorn University of TechnologyBangkokThailand
| | - Kasem Theerakittayakorn
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhon RatchasimaThailand
| | - Rangsun Parnpai
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhon RatchasimaThailand
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19
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Kilbride P, Meneghel J, Fonseca F, Morris J. The transfer temperature from slow cooling to cryogenic storage is critical for optimal recovery of cryopreserved mammalian cells. PLoS One 2021; 16:e0259571. [PMID: 34784361 PMCID: PMC8594829 DOI: 10.1371/journal.pone.0259571] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 10/21/2021] [Indexed: 11/22/2022] Open
Abstract
Cryopreservation is a key step for the effective delivery of many cell therapies and for the maintenance of biological materials for research. The preservation process must be carefully controlled to ensure maximum, post-thaw recovery using cooling rates slow enough to allow time for cells to cryodehydrate sufficiently to avoid lethal intracellular ice. This study focuses on determining the temperature necessary at the end of controlled slow cooling before transfer to cryogenic storage which ensures optimal recovery of the processed cell samples. Using nucleated, mammalian cell lines derived from liver (HepG2), ovary (CHO) and bone tissue (MG63) this study has shown that cooling must be controlled to -40°C before transfer to long term storage to ensure optimal cell recovery. No further advantage was seen by controlling cooling to lower temperatures. These results are consistent with collected differential scanning calorimetry data, that indicated the cells underwent an intracellular, colloidal glass transition between -49 and -59°C (Tg’i) in the presence of the cryoprotective agent dimethyl sulfoxide (DMSO). The glass forms at the point of maximum cryodehydration and no further cellular dehydration is possible. At this point the risk of lethal intracellular ice forming on transfer to ultra-low temperature storage is eliminated. In practice it may not be necessary to continue slow cooling to below this temperature as optimal recovery at -40°C indicates that the cells have become sufficiently dehydrated to avoid further, significant damage when transferred into ultra-low temperature storage.
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Affiliation(s)
| | | | - Fernanda Fonseca
- INRAE, AgroParisTech, UMR SayFood, Université Paris-Saclay, Thiverval-Grignon, France
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20
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Baskaran A, Kaari M, Venugopal G, Manikkam R, Joseph J, Bhaskar PV. Anti freeze proteins (Afp): Properties, sources and applications - A review. Int J Biol Macromol 2021; 189:292-305. [PMID: 34419548 DOI: 10.1016/j.ijbiomac.2021.08.105] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/17/2022]
Abstract
Extreme cold marine and freshwater temperatures (below 4 °C) induce massive deterioration to the cell membranes of organisms resulting in the formation of ice crystals, consequently causing organelle damage or cell death. One of the adaptive mechanisms organisms have evolved to thrive in cold environments is the production of antifreeze proteins with the functional capabilities to withstand frigid temperatures. Antifreeze proteins are extensively identified in different cold-tolerant species and they facilitate the persistence of cold-adapted organisms by decreasing the freezing point of their body fluids. Various structurally diverse types of antifreeze proteins detected possess the ability to modify ice crystal growth by thermal hysteresis and ice recrystallization inhibition. The unique properties of antifreeze proteins have made them a promising resource in industry, biomedicine, food storage and cryobiology. This review collates the findings of the various studies carried out in the past and the recent developments observed in the properties, functional mechanisms, classification, distinct sources and the ever-increasing applications of antifreeze proteins. This review also summarizes the possibilities of the way forward to identify new avenues of research on anti-freeze proteins.
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Affiliation(s)
- Abirami Baskaran
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Manigundan Kaari
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Gopikrishnan Venugopal
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Radhakrishnan Manikkam
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India.
| | - Jerrine Joseph
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Parli V Bhaskar
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Vasco-da-Gama 403804, Goa, India
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Embryology outcomes after oocyte vitrification with super-cooled slush nitrogen are similar to outcomes with conventional liquid nitrogen: a randomized controlled trial. Fertil Steril 2021; 117:106-114. [PMID: 34654569 DOI: 10.1016/j.fertnstert.2021.08.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether the use of slush nitrogen (SN), a super-cooled form of nitrogen with a temperature from -207 to -210 °C, can improve oocyte survival after vitrification and warming compared with conventional liquid nitrogen (LN). DESIGN Randomized controlled trial. SETTING Academic-affiliated private practice. PATIENT(S) A total of 556 metaphase II oocytes from 32 oocyte donor cycles were included. INTERVENTION(S) Donor oocytes were block randomized to undergo vitrification with either SN or LN. Vitrification was followed by warming, fertilization with donor sperm, embryo culture to the blastocyst stage, and preimplantation genetic testing for aneuploidy via trophectoderm biopsy with targeted next-generation sequencing. MAIN OUTCOME MEASURE(S) The primary outcome was oocyte survival after vitrification and warming. Secondary outcomes included rates of fertilization, usable blastocyst formation, and whole chromosome aneuploidy. RESULT(S) Half of the metaphase II oocytes (n = 278) were randomized to undergo vitrification with SN, whereas the other half (n = 278) were randomized to undergo vitrification with LN. There were no statistically significant differences noted in oocyte survival rate (85.3% vs. 86.3%), fertilization rate (84.0% vs. 80.0%), rate of usable blastocyst formation (54.3% vs. 55.7%), or rate of whole chromosome aneuploidy (9.4% vs. 11.7%) between the SN and LN arms, respectively. CONCLUSION(S) The implementation of an SN oocyte vitrification protocol resulted in similar embryology outcomes compared with LN. The use of SN did not lead to any demonstrable improvement in oocyte survival after vitrification and warming. CLINICAL TRIAL REGISTRATION NUMBER NCT04342364.
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Tharasanit T, Thuwanut P. Oocyte Cryopreservation in Domestic Animals and Humans: Principles, Techniques and Updated Outcomes. Animals (Basel) 2021; 11:ani11102949. [PMID: 34679970 PMCID: PMC8533007 DOI: 10.3390/ani11102949] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/25/2022] Open
Abstract
Oocyte cryopreservation plays important roles in basic research and the application of models for genetic preservation and in clinical situations. This technology provides long-term storage of gametes for genetic banking and subsequent use with other assisted reproductive technologies. Until recently, oocytes have remained the most difficult cell type to freeze, as the oocytes per se are large with limited surface area to cytoplasm ratio. They are also highly sensitive to damage during cryopreservation, and therefore the success rate of oocyte cryopreservation is generally poor when compared to noncryopreserved oocytes. Although advancement in oocyte cryopreservation has progressed rapidly for decades, the improvement of cryosurvival and clinical outcomes is still required. This review focuses on the principles, techniques, outcomes and prospects of oocyte cryopreservation in domestic animals and humans.
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Affiliation(s)
- Theerawat Tharasanit
- Department of Obstetrics, Gynecology and Reproduction, Faculty of Veterinary Science, Bangkok 10330, Thailand
- Veterinary Clinical Stem Cells and Bioengineering Research Unit, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence:
| | - Paweena Thuwanut
- Department of Obstetrics and Gynecology, Division of Reproductive Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
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Qin J, Guo S, Yang J, Qazi IH, Pan B, Lv T, Zang S, Fang Y, Zhou G. Melatonin Promotes in vitro Development of Vitrified-Warmed Mouse GV Oocytes, Potentially by Modulating Phosphorylation of Drp1. Front Vet Sci 2021; 8:752001. [PMID: 34631868 PMCID: PMC8497800 DOI: 10.3389/fvets.2021.752001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/30/2021] [Indexed: 12/03/2022] Open
Abstract
Previous studies have shown that melatonin can mitigate cryopreservation-induced mitochondrial dysfunction in oocytes; however, the underlying molecular mechanism remains unclear. The objective of the present study was to investigate whether melatonin can improve the mitochondrial function during in vitro maturation of vitrified-warmed mouse germinal vesicle (GV) oocytes by modulating phosphorylation of dynamin related protein 1 (Drp1). Vitrification/warming procedures resulted in the following: (1) After cryopreservation of mouse GV oocytes, the phosphorylation level of Drp1 at Ser616 (p-Drp1 Ser616) in metaphase II (MII) oocytes was increased (P < 0.05). Furthermore, the rates of in vitro maturation, cleavage and blastocyst formation after parthenogenetic activation were decreased (P < 0.05). (2) In MII oocytes, the expression levels of translocase of the mitochondrial outer membrane 20 (TOMM20), mitochondrial membrane potential (MMP), adenosine triphosphate (ATP) content, and mRNA levels of mitochondrial biogenesis-related genes (Sirt1, Pgc-1α, Tfam) were all decreased (P < 0.05), and (3) Reactive oxygen species (ROS) level, early apoptosis level, Cytochrome C release and mRNA levels of pro-apoptotic related genes (Bax, Caspase9, Caspase3) in MII oocytes were all increased (P < 0.05). The results of this study further revealed that negative impacts of GV oocyte cryopreservation were mitigated by supplementation of warming and in vitro maturation media with 10−7mol /L melatonin or 2 x 10−5mol/L Mdivi-1 (Drp1 inhibitor). Therefore, we concluded that 10−7mol/L melatonin improved mitochondrial function, reduced oxidative stress and inhibited apoptosis by regulating phosphorylation of Drp1, thereby enhancing in vitro development of vitrified-warmed mouse GV oocytes.
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Affiliation(s)
- Jianpeng Qin
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Shichao Guo
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jinyu Yang
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Izhar Hyder Qazi
- Department of Veterinary Anatomy and Histology, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Pakistan
| | - Bo Pan
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Tianyi Lv
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Shengqin Zang
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yi Fang
- Department of Grassland Resources and Animal Husbandry, Jilin Provincial Key Laboratory of Grassland Farming, Northeast Institute of Geography and Agoecology, Chinese Academy of Sciences, Changchun, China
| | - Guangbin Zhou
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
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Cryopreservation of Gametes and Embryos and Their Molecular Changes. Int J Mol Sci 2021; 22:ijms221910864. [PMID: 34639209 PMCID: PMC8509660 DOI: 10.3390/ijms221910864] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/18/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022] Open
Abstract
The process of freezing cells or tissues and depositing them in liquid nitrogen at -196 °C is called cryopreservation. Sub-zero temperature is not a physiological condition for cells and water ice crystals represent the main problem since they induce cell death, principally in large cells like oocytes, which have a meiotic spindle that degenerates during this process. Significantly, cryopreservation represents an option for fertility preservation in patients who develop gonadal failure for any condition and those who want to freeze their germ cells for later use. The possibility of freezing sperm, oocytes, and embryos has been available for a long time, and in 1983 the first birth with thawed oocytes was achieved. From the mid-2000s forward, the use of egg vitrification through intracytoplasmic sperm injection has improved pregnancy rates. Births using assisted reproductive technologies (ART) have some adverse conditions and events. These risks could be associated with ART procedures or related to infertility. Cryopreservation generates changes in the epigenome of gametes and embryos, given that ART occurs when the epigenome is most vulnerable. Furthermore, cryoprotective agents induce alterations in the integrity of germ cells and embryos. Notably, cryopreservation extensively affects cell viability, generates proteomic profile changes, compromises crucial cellular functions, and alters sperm motility. This technique has been widely employed since the 1980s and there is a lack of knowledge about molecular changes. The emerging view is that molecular changes are associated with cryopreservation, affecting metabolism, cytoarchitecture, calcium homeostasis, epigenetic state, and cell survival, which compromise the fertilization in ART.
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Melatonin Promotes In Vitro Maturation of Vitrified-Warmed Mouse Germinal Vesicle Oocytes, Potentially by Reducing Oxidative Stress through the Nrf2 Pathway. Animals (Basel) 2021; 11:ani11082324. [PMID: 34438783 PMCID: PMC8388487 DOI: 10.3390/ani11082324] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/30/2021] [Accepted: 08/04/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Cryopreservation of oocytes can cause high oxidative stress, reduce the quality of vitrified-warmed oocytes, and seriously hinder the application of oocyte cryopreservation technology in production and medicine. In this work, we found for the first time that melatonin can exert antioxidant effects through receptors and regulate the Nrf2 antioxidant pathway to respond to oxidative stress of vitrified-warmed oocytes, thereby improving both oocyte quality and the potential for subsequent development. The results illustrated the molecular mechanism of melatonin’s antioxidant effect in vitrified-warmed oocytes and provided a theoretical basis for the application of melatonin in the cryopreservation of oocytes. These findings are of great significance for the further application of oocyte cryopreservation technology to production and assisted reproduction in the future. Abstract Previously it was reported that melatonin could mitigate oxidative stress caused by oocyte cryopreservation; however, the underlying molecular mechanisms which cause this remain unclear. The objective was to explore whether melatonin could reduce oxidative stress during in vitro maturation of vitrified-warmed mouse germinal vesicle (GV) oocytes through the Nrf2 signaling pathway or its receptors. During in vitro maturation of vitrified-warmed mouse GV oocytes, there were decreases (p < 0.05) in the development rates of metaphase I (MI) oocytes and metaphase II (MII) and spindle morphology grades; increases (p < 0.05) in the reactive oxygen species (ROS) levels; and decreases (p < 0.05) in expressions of Nrf2 signaling pathway-related genes (Nrf2, SOD1) and proteins (Nrf2, HO-1). However, adding 10−7 mol/L melatonin to both the warming solution and maturation solutions improved (p < 0.05) these indicators. When the Nrf2 protein was specifically inhibited by Brusatol, melatonin did not increase development rates, spindle morphology grades, genes, or protein expressions, nor did it reduce vitrification-induced intracellular oxidative stress in GV oocytes during in vitro maturation. In addition, when melatonin receptors were inhibited by luzindole, the ability of melatonin to scavenge intracellular ROS was decreased, and the expressions of genes (Nrf2, SOD1) and proteins (Nrf2, HO-1) were not restored to control levels. Therefore, we concluded that 10−7 mol/L melatonin acted on the Nrf2 signaling pathway through its receptors to regulate the expression of genes (Nrf2, SOD1) and proteins (Nrf2, HO-1), and mitigate intracellular oxidative stress, thereby enhancing in vitro development of vitrified-warmed mouse GV oocytes.
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Storage, transport, and disposition of gametes and embryos: legal issues and practical considerations. Fertil Steril 2021; 115:274-281. [PMID: 33579521 DOI: 10.1016/j.fertnstert.2020.11.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 11/21/2022]
Abstract
Cryopreservation of reproductive material has dramatically improved clinical outcomes for patients all over the world. At the same time the practice has produced significant legal, ethical, and practical challenges to physicians and practices who use this technique. Failing to meet the expectations of patients, for example by losing material because of a freezer failure, has significant implications for the reproductive facility. Similarly, improperly transporting or receiving gametes or embryos can result in substantial risk to a practice. Perhaps the most widely publicized conundrum is how best to manage embryos that are abandoned. This paper will describe the legal principles and best practices that should be incorporated into the management of a fertility cryopreservation program.
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Influence of natural deep eutectic systems in water thermal behavior and their applications in cryopreservation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Li J, Yin M, Wang B, Lin J, Chen Q, Wang N, Lyu Q, Wang Y, Kuang Y, Zhu Q. The effect of storage time after vitrification on pregnancy and neonatal outcomes among 24 698 patients following the first embryo transfer cycles. Hum Reprod 2021; 35:1675-1684. [PMID: 32575120 DOI: 10.1093/humrep/deaa136] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 04/08/2020] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION To evaluate the impact of storage time after vitrification on embryo viability, pregnancy outcomes and neonatal outcomes. SUMMARY ANSWER The prolonged storage time of vitrified embryos negatively affected pregnancy outcomes, including biochemical pregnancy rate, clinical pregnancy and live birth rate; but did not influence neonatal outcomes. WHAT IS KNOWN ALREADY Although vitrification has been the fundamental tool of ART treatments in recent years, few studies have explored the influence of storage period after vitrification on embryonic and clinical outcomes. STUDY DESIGN, SIZE, DURATION A retrospective study was performed among 24 698 patients with the first vitrified embryo transfer following a freeze-all strategy during the period from January 2011 to December 2017. PARTICIPANTS/MATERIAL, SETTING, METHODS A total of 24 698 patients met the inclusion criteria and were grouped according to the storage time (11 330 patients in Group 1 with storage time <3 months, 9614 patients in Group 2 with storage time between 3 and 6 months, 3188 patients in Group 3 with storage time between 6 and 12 months and 566 in Group 4 with storage time between 12 and 24 months). The pregnancy outcomes and neonatal outcomes were compared between different storage time groups. Multivariate logistic regression and linear regression were performed to evaluate the independent effect of storage time on clinical outcomes, adjusting for important confounders. MAIN RESULTS AND THE ROLE OF CHANCE After adjustment for potential confounding factors, the chance of biochemical pregnancy (Group 1 as reference; Group 2: adjusted odds ratio (aOR) = 0.92, 95% CI 0.87-0.97; Group 3: aOR = 0.83, 95% CI 0.76-0.90; Group 4: aOR = 0.68, 95% CI 0.56-0.81), clinical pregnancy (Group 2: aOR = 0.91, 95% CI 0.86-0.96; Group 3: aOR = 0.80, 95% CI 0.73-0.87; Group 4: aOR = 0.65, 95% CI 0.54-0.79) and live birth (Group 2: aOR = 0.89, 95% CI 0.85-0.95; Group 3: aOR = 0.83, 95% CI 0.76-0.91; Group 4: aOR = 0.59, 95% CI 0.48-0.72) significantly decreased with the increasing storage time, whereas the relationship between miscarriage, ectopic pregnancy and storage time did not reach statistical significance. In addition, there was no evidence of differences in adverse neonatal outcomes (preterm birth, low birthweight, high birthweight, macrosomia or birth defects) between groups. LIMITATION, REASONS FOR CAUTION Our study was limited by the retrospective design from a single center, the conclusion from our study needs to be verified in further studies. WIDER IMPLICATIONS OF THE FINDINGS This study provides new findings about the relationship between prolonged storage time of vitrified embryos and clinical outcomes and offers evidence for the safety of using long-stored embryos after vitrification. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the National Natural Science Foundation of China (grant nos. 81903324, 81771533, 81571397, 81701523), National Key Research and Development Program of China (grant no. SQ2018YFC100163). None of the authors have any conflicts of interest to declare.
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Affiliation(s)
- Jianghui Li
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Mingru Yin
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Bian Wang
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Jiaying Lin
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Qiuju Chen
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Ningling Wang
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Qifeng Lyu
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Yun Wang
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Yanping Kuang
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Qianqian Zhu
- Department of Assisted Reproduction, Shanghai Ninth people's hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
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Teplá O, Topurko Z, Mašata J, Jirsová S, Frolíková M, Komrsková K, Minks A, Turánek J, Lynnyk A, Kratochvílová I. Important parameters affecting quality of vitrified donor oocytes. Cryobiology 2021; 100:110-116. [PMID: 33684403 DOI: 10.1016/j.cryobiol.2021.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 12/12/2022]
Abstract
For group of 281 oocytes obtained from 43 stimulated donors and cryopreserved by vitrification protocol using Cryotop and Kitazato medium we determined important parameters of oocytes collection and vitrification processes which strongly affect the probability that warmed oocytes will produce high-quality embryos for transfer. The probability to obtain high-quality embryos for transfer from vitrified and warmed oocytes was highest when two conditions were fulfilled: 1. oocytes were incubated before vitrification for 7-10 h and 2. stimulated ovaries of donors in one cycle produced a smaller number of oocytes (<7 oocytes from one donor per stimulated cycle). The probable reasons for these observations were: 1. early vitrification (less than 7 h) before final oocyte metaphase II maturation negatively affected the crucial process of post-warm remodelling of spindles and chromosomes, which reduced the fertilization and utilization rates, 2. the evaluated vitrification protocol amplifies negative impact of membrane defects of oocytes of those cohorts containing more than 6 oocytes - freezing places great demands on the integrity and elasticity of the cell membranes. The fact that cryopreservation influences a complex state of oocytes was confirmed by confocal microscopy.
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Affiliation(s)
- Olga Teplá
- Department of Obstetrics and Gynecology of the First Faculty of Medicine and General Teaching Hospital, Apolinářská 18, 128 51, Prague 2, Czech Republic.
| | - Zinovij Topurko
- Department of Obstetrics and Gynecology of the First Faculty of Medicine and General Teaching Hospital, Apolinářská 18, 128 51, Prague 2, Czech Republic.
| | - Jaromír Mašata
- Department of Obstetrics and Gynecology of the First Faculty of Medicine and General Teaching Hospital, Apolinářská 18, 128 51, Prague 2, Czech Republic.
| | - Simona Jirsová
- Department of Obstetrics and Gynecology of the First Faculty of Medicine and General Teaching Hospital, Apolinářská 18, 128 51, Prague 2, Czech Republic.
| | - Michaela Frolíková
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Průmyslová 595, 252 50, Vestec, Czech Republic.
| | - Kateřina Komrsková
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Průmyslová 595, 252 50, Vestec, Czech Republic; Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44, Prague 2, Czech Republic.
| | - Adela Minks
- ISCARE a.s, Českomoravská 2510/19, 190 00, Praha, Czech Republic.
| | - Jaroslav Turánek
- Department of Immunology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, 77515, Olomouc, Czech Republic.
| | - Anna Lynnyk
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, CZ-182 21, Prague 8, Czech Republic.
| | - Irena Kratochvílová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, CZ-182 21, Prague 8, Czech Republic.
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Van Reckem M, Blockeel C, Bonduelle M, Buysse A, Roelants M, Verheyen G, Tournaye H, Hes F, Belva F. Health of 2-year-old children born after vitrified oocyte donation in comparison with peers born after fresh oocyte donation. Hum Reprod Open 2021; 2021:hoab002. [PMID: 33634217 PMCID: PMC7892365 DOI: 10.1093/hropen/hoab002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 01/14/2021] [Indexed: 11/25/2022] Open
Abstract
STUDY QUESTION Does oocyte vitrification adversely affect the health of 2-year-old children compared with peers born after use of fresh oocytes in a donation programme? SUMMARY ANSWER The growth and health of 2-year-old children born after oocyte vitrification are similar to those of peers born after use of fresh oocytes. WHAT IS KNOWN ALREADY Although oocyte vitrification is a well-established procedure in ART, the evidence on its safety for offspring is limited. Currently, no disadvantageous effects of oocyte vitrification have been shown in terms of obstetric and neonatal outcome. However, no data beyond the neonatal period are available to date. STUDY DESIGN, SIZE, DURATION A combined retrospective and prospective observational study was performed in a tertiary reproductive centre. The retrospective data were available in our extensive database of children born after ART. Donor cycles with an oocyte retrieval between January 2010 and March 2017 and a fresh embryo transfer resulting in the livebirth of a singleton were selected from the established oocyte donation programme. Fresh or vitrified oocytes were used in the donor cycles and all pregnancies in oocyte recipients were achieved after ICSI. Only children residing in Belgium were eligible for follow-up. PARTICIPANTS/MATERIALS, SETTING, METHODS Biometric and health parameters of 72 children born after oocyte vitrification were compared with those of 41 children born after use of a fresh oocyte. Data were collected by means of questionnaires and physical examinations at the age of 21–30 months. The primary outcome measures were anthropometry and health at 2 years of age. MAIN RESULTS AND THE ROLE OF CHANCE Length, weight, BMI, head circumference, left arm circumference and waist circumference at the age of 2 years were comparable between the vitrification and fresh group, also after adjustment for treatment, and maternal and neonatal characteristics (all P > 0.05). Health of the children in terms of hospital admission and surgical intervention rates were comparable between the vitrification and fresh group (both P > 0.05). LIMITATIONS, REASONS FOR CAUTION Although the current study is the largest series describing health parameters beyond the neonatal period, the small numbers still preclude definite conclusions. WIDER IMPLICATIONS OF THE FINDINGS This study provides the first evidence indicating that oocyte vitrification does not adversely affect the growth and health of offspring beyond the neonatal period. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by Methusalem grants and by grants from Wetenschappelijk Fonds Willy Gepts, all issued by the Vrije Universiteit Brussel. All co-authors declared no conflict of interest in relation to this work. Both the Centre for Reproductive Medicine and the Centre for Medical Genetics from the UZ Brussel have received several educational grants from IBSA, Ferring, MSD and Merck for either research on oocyte vitrification or for establishing the database for follow-up research and organizing the data collection.
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Affiliation(s)
- Marjan Van Reckem
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Christophe Blockeel
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium.,Department of Obstetrics and Gynaecology, School of Medicine, University of Zagreb, Zagreb 10000, Croatia
| | - Maryse Bonduelle
- Centre for Medical Genetics, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium
| | - Andrea Buysse
- Centre for Medical Genetics, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium
| | - Mathieu Roelants
- Department of Public Health and Primary Care, Environment and Health/Youth Health Care, 3000 Leuven, Belgium
| | - Greta Verheyen
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium
| | - Herman Tournaye
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium.,Department of Obstetrics, Gynecology, Perinatology and Reproduction, Institute of Professional Education, Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow 119992, Russia
| | - Frederik Hes
- Centre for Medical Genetics, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium
| | - Florence Belva
- Centre for Medical Genetics, Universitair Ziekenhuis Brussel (UZ Brussel), 1090 Brussels, Belgium
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Kato K, Ochi M, Nakamura Y, Kamiya H, Utsunomiya T, Yano K, Michikura Y, Hara T, Kyono K, Takeuchi K, Nakayama T, Iwamasa J, Mio Y, Kuramoto T, Nagata Y, Jo T, Asada Y, Ohishi H, Osada H, Yoshida H. A multi-centre, retrospective case series of oocyte cryopreservation in unmarried women diagnosed with haematological malignancies. Hum Reprod Open 2021; 2021:hoaa064. [PMID: 33501384 PMCID: PMC7810816 DOI: 10.1093/hropen/hoaa064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 10/23/2020] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is oocyte cryopreservation an applicable option for fertility preservation in unmarried patients with haematological malignancies? SUMMARY ANSWER Oocyte cryopreservation via the vitrification method is accessible and may be considered an option for fertility preservation in unmarried patients with haematological malignancies. WHAT IS KNOWN ALREADY Haematological malignancies are most commonly observed amongst adolescent and young adult women. Although the survival rate and life expectancy of those with haematological malignancies have improved, chemotherapy and radiotherapy may impair their reproductive potential. Oocyte cryopreservation is thus an ideal option to preserve their fertility. STUDY DESIGN SIZE DURATION This study retrospectively evaluated 193 unmarried patients (age: 26.2 ± 0.4 years) with haematological malignancies, who consulted for oocyte cryopreservation across 20 different fertility centres in Japan between February 2007 and January 2015. The primary outcome measures were the oocyte retrievals and oocyte cryopreservation outcomes. The secondary outcome measures were the outcomes following oocyte warming for IVF. PARTICIPANTS/MATERIALS SETTING METHODS The patients had commenced ovarian stimulation cycles via antagonist, agonist, natural and minimal methods for oocyte retrievals, defined according to the treatment strategy of each respective fertility centre. A vitrification method using the Cryotop safety kit was used for oocyte cryopreservation. ICSIs were used for insemination of warmed oocytes. The endometrial preparation method for embryo transfer was hormonal replacement therapy, except in the case of a patient who underwent a spontaneous ovulatory cycle. MAIN RESULTS AND THE ROLE OF CHANCE Among 193 patients, acute myeloid leukaemia (n = 45, 23.3%) was most common, followed by acute lymphoid leukaemia (n = 38, 19.7%) and Hodgkin's lymphoma (n = 30, 15.5%). In total, 162 patients (83.9%) underwent oocyte retrieval, and oocytes were successfully cryopreserved for 155 patients (80.3%). The mean number of oocyte retrieval cycles and cryopreserved oocytes were 1.7 ± 0.2 and 6.3 ± 0.4, respectively. As of December 2019, 14 patients (9.2%) had requested oocyte warming for IVF. The survival rate of oocytes after vitrification-warming was 85.2% (75/88). The rates of fertilisation and embryo development were 80.0% (60/75) and 46.7% (28/60), respectively. Ten patients (71.4%) had successful embryo transfers, and seven live births (50.0%) were achieved. LIMITATIONS REASONS FOR CAUTION This study was limited by its retrospective nature. Additionally, there remains an insufficient number of cases regarding the warming of vitrified oocytes to reliably conclude whether oocyte cryopreservation is effective for patients with haematological malignancies. Further long-term follow-up study is required. WIDER IMPLICATIONS OF THE FINDINGS Oocyte retrieval and oocyte cryopreservation were accessible for patients with haematological malignancies; however, the number of oocyte retrievals may have been limited due to the initiation of cancer treatments. Acceptable embryonic and pregnancy outcomes could be achieved following oocyte warming; therefore, our results suggest that oocyte cryopreservation can be considered an option for fertility preservation in patients with haematological malignancies. STUDY FUNDING/COMPETING INTERESTS This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors. The authors declare no conflict of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- K Kato
- Kato Ladies Clinic, Tokyo 160-0023, Japan
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
| | - M Ochi
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Ochi Yume Clinic Nagoya, Nagoya, Aichi 460-0002, Japan
| | - Y Nakamura
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Nakamura Ladies Clinic, Suita, Osaka 564-0051, Japan
| | - H Kamiya
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Kamiya Ladies Clinic, Sapporo, Hokkaido 060-0003, Japan
| | - T Utsunomiya
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- St. Luke Clinic, Oita, 870-0823 Japan
| | - K Yano
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Yano Maternity Clinic, Matsuyama, Ehime 790-0872, Japan
| | - Y Michikura
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Kanazawa Tamago Clinic, Kanazawa, Ishikawa 920-0016, Japan
| | - T Hara
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Hiroshima Prefectural Hospital, Hiroshima 734-8530, Japan
| | - K Kyono
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Kyono ART Clinic Sendai, Sendai, Miyagi 980-0014, Japan
| | - K Takeuchi
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Takeuchi Ladies Clinic, Aira, Kagoshima 899-5421, Japan
| | - T Nakayama
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Adachi Hospital, Chuo-ku, Kyoto 604-0837, Japan
| | - J Iwamasa
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Sofia Ladies Clinic Suidocho, Chuo-ku, Kumamoto 860-0844, Japan
| | - Y Mio
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Mio Fertility Clinic, Yonago, Totttori 683-0008, Japan
| | - T Kuramoto
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Kuramoto Women’s Clinic, Hakata-ku, Fukuoka 812-0013, Japan
| | - Y Nagata
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- IVF Nagata Clinic, Chuo-ku, Fukuoka 810-0001, Japan
| | - T Jo
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Jo Clinic, Nishinomiya, Hyogo 860-0844, Japan
| | - Y Asada
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Asada Ladies Clinic, Nagoya, Aichi 450-0002, Japan
| | - H Ohishi
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Hamanomachi Hospital, Fukuoka 810-0072, Japan
| | - H Osada
- Kato Ladies Clinic, Tokyo 160-0023, Japan
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
- Natural ART Clinic Nihombashi, Chuo-ku, Tokyo 103-6008, Japan
| | - H Yoshida
- Kato Ladies Clinic, Tokyo 160-0023, Japan
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
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De Roo NMC, Deboosere E, Thierens LAM, Vercruysse C, Temmerman L, Verbeeck RMH, Pauw GAMDE. The orthodontic bonding properties of human enamel after cryopreservation. Dent Mater J 2020; 39:950-955. [PMID: 32595189 DOI: 10.4012/dmj.2019-208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim was to investigate the effect of cryopreservation on the enamel bonding properties of orthodontic brackets. Sixty-six human premolars were randomly allocated to a control group or a cryopreserved group. Conventional stainless-steel orthodontic brackets were bonded with a light cure adhesive on the buccal side of the premolars. The shear bond strength (SBS) was determined at a crosshead speed of 1 mm/min. The SBS and adhesive remnant index (ARI) were evaluated respectively by an independent samples t test and Fisher's exact test (α≤0.05). The mean failure load was lower in the cryopreserved group. However, this difference in SBS was not significant (p=0.443). In both groups, the ARI mostly indicated a failure at the enamel-adhesive interface. The mean ARI scores for both groups were not significantly different (p=0.099). Within the limitations of this macro bond strength testing, it can be concluded that cryopreservation does not significantly affect the bonding properties of enamel.
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Affiliation(s)
- Noëmi M C De Roo
- Oral Health Sciences, Department of Orthodontics, Ghent University
| | - Eline Deboosere
- Oral Health Sciences, Department of Orthodontics, Ghent University
| | | | - Chris Vercruysse
- Biomaterials Group, Department of Basic Medical Sciences, Ghent University
| | | | | | - Guy A M DE Pauw
- Oral Health Sciences, Department of Orthodontics, Ghent University
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Meneghel J, Kilbride P, Morris GJ. Cryopreservation as a Key Element in the Successful Delivery of Cell-Based Therapies-A Review. Front Med (Lausanne) 2020; 7:592242. [PMID: 33324662 PMCID: PMC7727450 DOI: 10.3389/fmed.2020.592242] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/23/2020] [Indexed: 12/24/2022] Open
Abstract
Cryopreservation is a key enabling technology in regenerative medicine that provides stable and secure extended cell storage for primary tissue isolates and constructs and prepared cell preparations. The essential detail of the process as it can be applied to cell-based therapies is set out in this review, covering tissue and cell isolation, cryoprotection, cooling and freezing, frozen storage and transport, thawing, and recovery. The aim is to provide clinical scientists with an overview of the benefits and difficulties associated with cryopreservation to assist them with problem resolution in their routine work, or to enable them to consider future involvement in cryopreservative procedures. It is also intended to facilitate networking between clinicians and cryo-researchers to review difficulties and problems to advance protocol optimization and innovative design.
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Affiliation(s)
- Julie Meneghel
- Asymptote, Cytiva, Danaher Corporation, Cambridge, United Kingdom
| | - Peter Kilbride
- Asymptote, Cytiva, Danaher Corporation, Cambridge, United Kingdom
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Lau GA, Schaeffer AJ. Pediatric oncofertility: an update. Transl Androl Urol 2020; 9:2416-2421. [PMID: 33209715 PMCID: PMC7658128 DOI: 10.21037/tau-20-991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fertility preservation (FP) in pediatric patients with cancer is an evolving field. In this review, we give a short update on recent scientific advances in the practice of pediatric oncofertility, particularly related to the research involving gonadal tissue cryopreservation from prepubertal patients, which remains experimental. We then focus on recent advances in the implementation of formal pediatric oncofertility programs and barriers in the delivery of FP in this patient population. Finally, we include some of the more recent outcomes data from established oncofertility programs that treat pediatric patients.
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Affiliation(s)
- Glen A Lau
- Division of Urology, University of Utah, Salt Lake City, UT, USA
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35
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Canatelli-Mallat M, Lascaray F, Entraigues-Abramson M, Portiansky EL, Blamaceda N, Morel GR, Goya RG. Cryopreservation of a Human Brain and Its Experimental Correlate in Rats. Rejuvenation Res 2020; 23:516-525. [PMID: 32340558 DOI: 10.1089/rej.2019.2245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Several countries have established self-help cryonics groups whose mission is to cryopreserve human bodies or brains after legal death and ship them to cryonics organizations. The objective of this study was to report the first case of human brain cryopreservation in Argentina and complementary experiments in rats. After legal death, the body of a 78-year-old Caucasian woman was transported to a funeral home where her head was submitted to intracarotid perfusion with 5 L cold physiologic saline followed by the same volume of cold saline containing 13% dimethyl sulfoxide and 13% glycerol. The brain was removed, temporarily frozen at -80°C, and shipped to a U.S. cryostasis facility. Three groups of rats were intracardially perfused with fixative but not frozen (Reference group), vitrification solution VM1 (Control group), or the cryoprotection solution used in the patient (Experimental group). Control and Experimental brains were stored at -80°C and subsequently assessed by immunohistochemistry for the adult neuron marker (NeuN), the immature neuron marker doublecortin (DCX), the dopaminergic neuron marker tyrosine hydroxylase, and the presynaptic marker synaptophysin (SYN). The number of NeuN-positive neurons remained unchanged in the experimental brain cortex, whereas the number of immature DCX neurons in the hippocampus fell markedly in the cryoprotected brains. The results were highly variable for hypothalamic dopaminergic neurons. Confocal microscopy for SYN revealed that cryopreservation did not affect the synaptic network in the hippocampus. To our knowledge, this is the first report correlating a human cryoprotection procedure with results in complementary experiments in laboratory animals.
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Affiliation(s)
| | | | | | - Enrique L Portiansky
- Laboratorio de Análisis de Imágenes (LAI), School of Veterinary Sciences, UNLP, La Plata, Argentina
| | - Néstor Blamaceda
- INIBIOLP-Histology B, Pathology B, School of Medicine, UNLP, La Plata, Argentina
| | - Gustavo R Morel
- INIBIOLP-Histology B, Pathology B, School of Medicine, UNLP, La Plata, Argentina
| | - Rodolfo G Goya
- INIBIOLP-Histology B, Pathology B, School of Medicine, UNLP, La Plata, Argentina
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36
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Sciorio R. Cryopreservation of human embryos and oocytes for fertility preservation in cancer and non cancer patients: a mini review. Gynecol Endocrinol 2020; 36:381-388. [PMID: 32003268 DOI: 10.1080/09513590.2020.1719402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The term 'cryopreservation' illustrates the process of freezing cells and storing at very low temperature in liquid nitrogen (-196 °C). Cooling is not a physiological condition for human cells especially due to the high concentration of water in the living matter, whose conversion to ice crystals may be associated with cell death. Human oocytes are particularly sensitive to the freezing process, primarily because of their large size and the presence of the meiotic spindle, which at low temperature can degenerate. In the last decade, the cryopreservation technology has become highly important as an option for fertility preservation (FP) in women with cancer. Anticancer therapy might promote premature ovarian failure and negatively affects the reproductive outcome. Over the years, scientists have proposed different cryopreservation strategies in the effort to maintain the physiological functions of oocytes and embryo. However, despite the first success obtained in the 1980s with frozen oocytes, it was not until recently that a new approach has been proposed: the 'Vitrification' which allowed a breakthrough in this procedure. FP is a major determinant for cancer survivor women in the reproductive age. This article describes the FP options currently available, focusing mainly on oocyte and embryo cryopreservation.
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Affiliation(s)
- Romualdo Sciorio
- Edinburgh Assisted Conception Programme, EFREC, Royal Infirmary of Edinburgh, Edinburgh, Scotland, UK
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37
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Abstract
The process of embryonic development is crucial and radically influences preimplantation embryo competence. It involves oocyte maturation, fertilization, cell division and blastulation and is characterized by different key phases that have major influences on embryo quality. Each stage of the process of preimplantation embryonic development is led by important signalling pathways that include very many regulatory molecules, such as primary and secondary messengers. Many studies, both in vivo and in vitro, have shown the importance of the contribution of reactive oxygen species (ROS) as important second messengers in embryo development. ROS may originate from embryo metabolism and/or oocyte/embryo surroundings, and their effect on embryonic development is highly variable, depending on the needs of the embryo at each stage of development and on their environment (in vivo or under in vitro culture conditions). Other studies have also shown the deleterious effects of ROS in embryo development, when cellular tissue production overwhelms antioxidant production, leading to oxidative stress. This stress is known to be the cause of many cellular alterations, such as protein, lipid, and DNA damage. Considering that the same ROS level can have a deleterious effect on the fertilizing oocyte or embryo at certain stages, and a positive effect at another stage of the development process, further studies need to be carried out to determine the rate of ROS that benefits the embryo and from what rate it starts to be harmful, this measured at each key phase of embryonic development.
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Qin Q, Zhao L, Liu Z, Liu T, Qu J, Zhang X, Li R, Yan L, Yan J, Jin S, Wang J, Qiao J. Bioinspired l-Proline Oligomers for the Cryopreservation of Oocytes via Controlling Ice Growth. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18352-18362. [PMID: 32227894 DOI: 10.1021/acsami.0c02719] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Various types of cells are routinely cryopreserved in modern regenerative and cell-based medicines. For instance, the oocyte is one of the most demanding cells to be cryopreserved in genetic engineering and human-assisted reproductive technology (ART). However, the usage of cryopreserved oocytes in ART clinics is still limited mainly because of the unstable survival rate. This is due to the fact that oocytes are more prone to be damaged by ice crystals in comparison to other cells, as oocytes are larger in size and surface area. Meanwhile, oocytes contain more water, and thus, ice crystals are easier to form inside the cells. Currently, to avoid injury by the formed ice crystals, cryopreservation (CP) of oocytes has to use large amounts of small molecules as cryoprotectants such as dimethyl sulfoxide (DMSO) and ethylene glycol (EG), which can permeate into the cell and prevent ice formation inside. However, these molecules are chemically and epigenetically toxic to cells. Therefore, great efforts have been focused on reducing the amount of DMSO and EG used for oocyte CP. In nature, the antifreeze (glyco)proteins (AFGPs) locate extracellularly with the ability to protect living organisms from freezing damage via controlling ice growth. Inspired by this, biocompatible and nontoxic L-proline oligomers (L-Pron), which have the same polyproline II helix structure as that of AFGPs, are first employed for the CP of oocytes. The experimental results reveal that L-Pro8 has a profound activity in inhibiting ice growth as that of AFGP8. Also, by the addition of 50 mM L-Pro8, the amount of DMSO and EG can be greatly reduced by ca. 1.8 M for oocyte CP; moreover, the survival rate of the cryopreserved oocytes is increased up to 99.11%, and the coefficient of variance of the survival rate is decreased from 7.47 to 2.15%. These results mean that almost all oocytes can survive after CP with our method; importantly, the mitochondrial function as a critical criterion for the quality of the frozen-thawed oocytes is also improved. It is proposed that with the addition of L-Pro8, the extracellular ice growth is slowed down, which prevents the direct injuries of cells by large ice crystals and the accompanying osmotic pressure increase. As such, this work is not only significant for meeting the ever-increasing demand by the ART clinics but also gives guidance for designing materials in controlling ice growth during CP of other cells and tissues.
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Affiliation(s)
- Qingyuan Qin
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Lishan Zhao
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhang Liu
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Tao Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Jiangxue Qu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Xiaowei Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Rong Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Liying Yan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Jie Yan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
| | - Shenglin Jin
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianjun Wang
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49 North Hua Yuan Road, Hai Dian District, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction, Beijing 100191, China
- Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China
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Breast cancer: an update on treatment-related infertility. J Cancer Res Clin Oncol 2020; 146:647-657. [DOI: 10.1007/s00432-020-03136-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 01/22/2020] [Indexed: 12/19/2022]
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40
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Sheshpari S, Shahnazi M, Mobarak H, Ahmadian S, Bedate AM, Nariman-Saleh-Fam Z, Nouri M, Rahbarghazi R, Mahdipour M. Ovarian function and reproductive outcome after ovarian tissue transplantation: a systematic review. J Transl Med 2019; 17:396. [PMID: 31783875 PMCID: PMC6883646 DOI: 10.1186/s12967-019-02149-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 11/19/2019] [Indexed: 12/18/2022] Open
Abstract
The aim of this systematic review study is to summarize the current knowledge of ovarian tissue transplantation and provide insight on ovarian function, fertility and reproductive outcome following ovarian tissue transplantation. Relevant studies were identified by searching through PubMed, Cochrane Library, Embase, ProQuest, and Scopus databases until August 2018. Ovarian function by examination of the hormonal level was evaluated, together with follicular growth, the return of menstrual cycle and assessment of reproductive consequences: pregnancy, miscarriage rates and live birth after transplantation. Studies including female patients aged between 22 and 49 years that were subjected to ovarian tissue transplantation were considered. A total of 1185 studies were identified in the primary search. Titles and abstracts were screened for assessment of the inclusion criteria. Finally, twenty-five articles met the criteria and were included in this study. In general, 70% of patients that underwent ovarian tissue transplantation had ovarian and endocrine function restoration as well as follicular growth. Pregnancy was reported with 52% of the patients. The available evidence suggests that ovarian tissue transplantation is a useful and an applied approach to restore hormonal function, endocrine balance and eventually fertility outcomes in patients that are predisposed to lose their fertility, diagnosed with premature ovarian failure (POF), as well as women undergoing cancer treatments. Identification of the techniques with the lowest invasions for follicular and oocyte development after ovarian tissue transplantation aiming to reduce probable adverse effects after treatment is indispensable.
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Affiliation(s)
- Sepideh Sheshpari
- Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran
| | - Mahnaz Shahnazi
- Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran
| | - Halimeh Mobarak
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran
| | - Shahin Ahmadian
- Department of Biology, Faculty of Science, Azerbaijan Shahid Madani University, Tabriz, 537517169, Iran
| | - Alberto Miranda Bedate
- Laboratory for Translational Immunology (LTI), Universitair Medisch Centrum Utrecht, (UMCU), Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - Ziba Nariman-Saleh-Fam
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran.,Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, 5166615739, Iran
| | - Reza Rahbarghazi
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran.,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, 5166615739, Iran. .,Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Daneshgah St., Tabriz, 5166615739, Iran.
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Thompson RE, Johnson AK, Prado TM, Premanandan C, Brown ME, Whitlock BK, Pukazhenthi BS. Dimethyl sulfoxide maintains structure and function of cryopreserved equine endometrial explants. Cryobiology 2019; 91:90-96. [PMID: 31626783 DOI: 10.1016/j.cryobiol.2019.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 11/30/2022]
Abstract
Availability of viable frozen-thawed endometrial tissues could facilitate detailed studies into physiologic and disease processes influencing the endometrium. This study was designed to investigate the cryosurvival of equine endometrial tissue. Previous studies in the human and horse have focused on cryopreservation of dissociated endometrial cells. To our knowledge, there are no studies on cryopreservation of endometrial explants. Our objectives were to 1) determine the influence of differing concentrations of the permeating cryoprotectant dimethyl sulfoxide (Me2SO) on viability, structural integrity, and gene expression of cryopreserved equine endometrial tissues prior to and following a 5-day explant culture in vitro and 2) examine the influence of low (1000 mg/L dextrose) vs high (4500 mg/L dextrose) glucose medium during in vitro culture. Both 10% and 20% (v/v) concentrations of Me2SO maintained viability following cryopreservation and in vitro culture. In addition, gene expression remained unaltered following cryopreservation with either 10% or 20% Me2SO. However, tissue structural integrity was slightly reduced compared to the fresh control. Furthermore, there was no difference in structural integrity, cell viability, or gene expression between low and high glucose medium during in vitro culture. Although E-cadherin and Ki67 gene expression was not different among fresh, 10% Me2SO, and 20% Me2SO treatments prior to or following tissue culture, estrogen receptor-α and progesterone receptor gene expression were reduced in all groups after explant culture. This is the first report of successful cryopreservation of equine endometrial explants.
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Affiliation(s)
- Riley E Thompson
- University of Tennessee College of Veterinary Medicine, Department of Large Animal Clinical Sciences, 2407 River Drive, Knoxville, TN, 37996, USA; Smithsonian Conservation Biology Institute, Center for Species Survival, 1500 Remount Road, Front Royal, VA, 22630, USA
| | - Aime K Johnson
- Auburn University College of Veterinary Medicine, 1010 Wire Road, Auburn, AL, 36832, USA
| | - Tulio M Prado
- University of Tennessee College of Veterinary Medicine, Department of Large Animal Clinical Sciences, 2407 River Drive, Knoxville, TN, 37996, USA
| | - Christopher Premanandan
- The Ohio State University College of Veterinary Medicine, 1925 Coffey Road, Columbus, OH, 43210, USA
| | - Megan E Brown
- Smithsonian Conservation Biology Institute, Center for Species Survival, 1500 Remount Road, Front Royal, VA, 22630, USA
| | - Brian K Whitlock
- University of Tennessee College of Veterinary Medicine, Department of Large Animal Clinical Sciences, 2407 River Drive, Knoxville, TN, 37996, USA
| | - Budhan S Pukazhenthi
- Smithsonian Conservation Biology Institute, Center for Species Survival, 1500 Remount Road, Front Royal, VA, 22630, USA.
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Huang C, Lei L, Wu HL, Gan RX, Yuan XB, Fan LQ, Zhu WB. Long-term cryostorage of semen in a human sperm bank does not affect clinical outcomes. Fertil Steril 2019; 112:663-669.e1. [DOI: 10.1016/j.fertnstert.2019.06.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 02/07/2023]
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The first report of pregnancies following blastocyst automated vitrification in Europe. J Gynecol Obstet Hum Reprod 2019; 48:537-540. [DOI: 10.1016/j.jogoh.2019.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/30/2019] [Accepted: 05/07/2019] [Indexed: 11/19/2022]
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Numerical solution of inward solidification of a dilute ternary solution towards a semi-permeable spherical cell. Math Biosci 2019; 316:108240. [PMID: 31465730 DOI: 10.1016/j.mbs.2019.108240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 04/09/2019] [Accepted: 08/22/2019] [Indexed: 11/23/2022]
Abstract
Modeling a cell's response to encroaching ice has informed the development of cryopreservation protocols for four decades. It has been well documented that knowledge of the cellular state as a function of media and cooling rate faciliate informed cryopreservation protocol design and explain mechanisms of damage. However, previous efforts have neglected the interaction between solutes and the encroaching ice front and their effects on the cell state. To address this, here we examine the cryobiologically relevant setting of a spherically-symmetric model of a biological cell separated by a ternary fluid mixture from an encroaching solid-liquid interface. The cell and liquid regions contain cell membrane impermeable intracellular and extracellular salts, respectively, a cell membrane permeable solute commonly used in cryopreservation protocols known as a cryoprotective agent (CPA), and water as a membrane permeable solvent. As cooling and solidification proceed the extracellular chemical environment evolves and leads to mass transport across the cell membrane. Consequently, both the solidification front and the cell membrane are free boundaries whose dynamics are coupled through transport processes in the solid, liquid and cell regions. We describe a numerical procedure to solve this coupled free-boundary problem based on a domain transformation and method of lines approach. We also investigate how the thermal and chemical states inside the cell are influenced by different cooling protocols at the external boundary. Finally, we observe that the previously unaccounted-for partial solute rejection at the advancing solid-liquid interface increases the CPA and salt concentrations in the extracellular liquid as a function of the interface speed and segregation coefficients, suggesting that previous model predictions of the cell state during cryopreservation were inaccurate.
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Robles V, Valcarce DG, Riesco MF. The Use of Antifreeze Proteins in the Cryopreservation of Gametes and Embryos. Biomolecules 2019; 9:E181. [PMID: 31075977 PMCID: PMC6571776 DOI: 10.3390/biom9050181] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 01/09/2023] Open
Abstract
The cryopreservation of gametes and embryos is a technique widely used in reproductive biology. This technology helps in the reproductive management of domesticated animals, and it is an important tool for gene banking and for human-assisted reproductive technologies. Antifreeze proteins are naturally present in several organisms exposed to subzero temperatures. The ability for these proteins to inhibit ice recrystallization together with their ability to interact with biological membranes makes them interesting molecules to be used in cryopreservation protocols. This mini-review provides a general overview about the use of antifreeze proteins to improve the short and long term storage of gametes and embryos.
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Affiliation(s)
- Vanesa Robles
- Spanish Institute of Oceanography (IEO), Santander, 39012, Spain.
- MODCELL GROUP, Department of Molecular Biology, Universidad de León, 24071 León, Spain.
| | - David G Valcarce
- Spanish Institute of Oceanography (IEO), Santander, 39012, Spain.
| | - Marta F Riesco
- Spanish Institute of Oceanography (IEO), Santander, 39012, Spain.
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46
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Domingos Borges E, Aparecida Vireque A. Updating the Impact of Lipid Metabolism Modulation and Lipidomic Profiling on Oocyte Cryopreservation. EUROPEAN MEDICAL JOURNAL 2019. [DOI: 10.33590/emj/10310074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Oocyte cryopreservation has drastically improved in recent years and is receiving widespread clinical use with increasing demand for fertility preservation and assisted reproduction treatments. However, there are still several points to be reviewed in terms of suppressing sub-lethal damages and improving overall safety, especially when trying to preserve oocytes at the germinal vesicle stage or oocytes matured in vitro. The lipid content of oocytes is highly associated with both their competence and cryotolerance. Differences in lipid content are observed not just between different species but also at different developmental stages and when the oocytes are kept under different conditions, including cryopreservation. Many efforts have been made to understand how physiological or in vitro alterations in the lipid profile of oocytes impacts cryotolerance and vice-versa; however, the dynamics of cytosolic and membrane lipid involvement in the cryopreservation process remains poorly clarified in the human female gamete. This review presents an updated overview of the current state of cryopreservation techniques and oocyte lipidomics and highlights possible ways to improve cryotolerance, focussing on lipid content modulation.
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Affiliation(s)
- Eduardo Domingos Borges
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Alessandra Aparecida Vireque
- Invitra – Assisted Reproductive Technologies Ltd., Supera Innovation and Technology Park, Ribeirão Preto, Brazil
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Dadashpour Davachi N, Fallahi R, Dirandeh E, Liu X, Bartlewski PM. Effects of co-incubation with conspecific ampulla oviductal epithelial cells and media composition on cryotolerance and developmental competence of in vitro matured sheep oocytes. Theriogenology 2018; 120:10-15. [PMID: 30081243 DOI: 10.1016/j.theriogenology.2018.07.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 07/04/2018] [Accepted: 07/27/2018] [Indexed: 11/28/2022]
Abstract
Developmental potential of cryopreserved in vitro matured oocytes is very low in nearly all mammalian species studied to date. Despite relatively high cleavage rates, the vitrified/warmed metaphase II oocytes have a decreased rate of blastocyst formation, which can be attributed to the elevated cytoplasmic lipid content and lipid droplet fragmentation. Secretory products of ampulla oviductal epithelial cells (AECs) at the periovulatory stage of the ovarian cycle enhance the viability of in vitro matured oocytes. The present study was undertaken to determine if co-culture of cumulus-oophorus complexes (COCs) with conspecific AECs or reducing the lipid content of in vitro matured ovine oocytes would improve their cryotolerance and ensuing developmental competence. Ovine COCs aspirated from the slaughterhouse ovaries were matured in the following media or culture conditions: TCM199 + FBS + AECs (T1); TCM199 + FBS (T2); TCM199 + BSA (T3); TCM199 + 0.6 mg/mL of l-carnitine (T4); TCM199+ l-carnitine + FBS (T5), or TCM199 only (Ctr). Subsequently, the oocytes were vitrified and used for in vitro fertilization (IVF). The lowest degree of zona pellucida (ZP) hardening following vitrification of in vitro matured sheep oocytes was observed in T1 and T5 (P < 0.05). Cleavage, blastocyst formation and ensuing development (i.e., total cell numbers) as well as blastocyst hatching rates were all greater (P < 0.05) in T1 compared with the remaining groups; in vitro matured COCs in T4 and Ctr did not develop beyond the cleavage stage. The inner cell mass: trophectoderm cell ratio in T1 (1:3.29) was significantly greater compared with T2 (1:3.39), T3 (1:3.40) and T5 (1:3.44). The present results indicate that the ovine COCs/AECs co-culture system had the most positive influence on cryotolerance, ZP hardening, and developmental competence of in vitro matured oocytes.
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Affiliation(s)
- Navid Dadashpour Davachi
- Department of Research, Breeding and Production of Laboratory Animals, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Roozbeh Fallahi
- Department of Research, Breeding and Production of Laboratory Animals, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Essa Dirandeh
- Department of Animal Science, Sari Agricultural Sciences and Natural Resources University, Sari, Mazandaran, P.O.BOX:578, Iran
| | - Xinyu Liu
- 204 Shenyang Hospital, Shenyang, Liaoning, PR China
| | - Pawel M Bartlewski
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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48
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Falk M, Falková I, Kopečná O, Bačíková A, Pagáčová E, Šimek D, Golan M, Kozubek S, Pekarová M, Follett SE, Klejdus B, Elliott KW, Varga K, Teplá O, Kratochvílová I. Chromatin architecture changes and DNA replication fork collapse are critical features in cryopreserved cells that are differentially controlled by cryoprotectants. Sci Rep 2018; 8:14694. [PMID: 30279538 PMCID: PMC6168476 DOI: 10.1038/s41598-018-32939-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 09/17/2018] [Indexed: 11/22/2022] Open
Abstract
In this work, we shed new light on the highly debated issue of chromatin fragmentation in cryopreserved cells. Moreover, for the first time, we describe replicating cell-specific DNA damage and higher-order chromatin alterations after freezing and thawing. We identified DNA structural changes associated with the freeze-thaw process and correlated them with the viability of frozen and thawed cells. We simultaneously evaluated DNA defects and the higher-order chromatin structure of frozen and thawed cells with and without cryoprotectant treatment. We found that in replicating (S phase) cells, DNA was preferentially damaged by replication fork collapse, potentially leading to DNA double strand breaks (DSBs), which represent an important source of both genome instability and defects in epigenome maintenance. This induction of DNA defects by the freeze-thaw process was not prevented by any cryoprotectant studied. Both in replicating and non-replicating cells, freezing and thawing altered the chromatin structure in a cryoprotectant-dependent manner. Interestingly, cells with condensed chromatin, which was strongly stimulated by dimethyl sulfoxide (DMSO) prior to freezing had the highest rate of survival after thawing. Our results will facilitate the design of compounds and procedures to decrease injury to cryopreserved cells.
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Affiliation(s)
- Martin Falk
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic.
| | - Iva Falková
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic
| | - Olga Kopečná
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic
| | - Alena Bačíková
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic
| | - Eva Pagáčová
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic
| | - Daniel Šimek
- The Czech Academy of Sciences, Institute of Physics, Na Slovance 2, CZ-182 21, Prague 8, Czech Republic
| | - Martin Golan
- The Czech Academy of Sciences, Institute of Physics, Na Slovance 2, CZ-182 21, Prague 8, Czech Republic
- Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, Prague 2, CZ-121 16, Czech Republic
| | - Stanislav Kozubek
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic
| | - Michaela Pekarová
- The Czech Academy of Sciences, Institute of Biophysics, Královopolská 135, CZ-612 65, Brno, Czech Republic
| | - Shelby E Follett
- Department of Chemistry, University of Wyoming, 1000 E. University Ave, WY 82071, Laramie, USA
| | - Bořivoj Klejdus
- Institute of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemědělská 1, CZ-613 00, Czech Republic
- CEITEC-Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00, Brno, Czech Republic
| | - K Wade Elliott
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, 46 College Road, Durham, NH, 03824, USA
| | - Krisztina Varga
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, 46 College Road, Durham, NH, 03824, USA
| | - Olga Teplá
- ISCARE IVF a.s, Jankovcova 1692, CZ-160 00, Praha 6, Czech Republic
- VFN Gynekologicko-porodnická klinika, Apolinářská 18, CZ-120 00, Czech Republic
| | - Irena Kratochvílová
- The Czech Academy of Sciences, Institute of Physics, Na Slovance 2, CZ-182 21, Prague 8, Czech Republic.
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49
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Sanaei B, Movaghar B, Rezazadeh Valojerdi M, Ebrahimi B, Bazrgar M, Hajian M, Nasr-Esfahani MH. Developmental competence of in vitro matured ovine oocytes vitrified in solutions with different concentrations of trehalose. Reprod Domest Anim 2018; 53:1159-1167. [PMID: 29938846 DOI: 10.1111/rda.13221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 04/27/2018] [Accepted: 05/01/2018] [Indexed: 01/30/2023]
Abstract
This study aimed to determine the optimum concentration of trehalose in solutions used for vitrification of in vitro matured (IVM) ovine oocytes. IVM oocytes were randomly divided into four experimental (vitrified) and one control (fresh) groups. Experimental groups were treated with different concentrations (0.0, 0.25, 0.5 and 1.0 M) of trehalose. After warming, some viable oocytes were exposed to 0.25% pronase to test zona pellucida hardening, whereas the others were fertilized and cultured in vitro for 8 days to evaluate their developmental competence. Blastocysts quality was assessed by differential staining and TUNEL test. Survival and developmental rates of oocytes vitrified in the presence of 0.5 M trehalose were significantly higher than those of the other vitrified groups. Furthermore, there was a significant difference between fresh and vitrified groups in total blastocyst rate. Analysis of blastocysts quality also revealed a significant difference between the group treated with 0.5 M trehalose and other groups in terms of apoptotic index. Furthermore,zona pellucida digestion time period was longer in trehalose-free (0.0 M) group compared to other groups. In conclusion, we found that IVM ovine oocytes vitrified in solutions containing 0.5 M trehalose are fertilization-competent and are able to produce good-quality blastocysts with an apoptotic index comparable to that of the fresh oocytes. Therefore, 0.5 M may be considered the optimum concentration of trehalose to be used in solutions prepared for vitrification of oocytes.
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Affiliation(s)
- Batool Sanaei
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Bahar Movaghar
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | | | - Bita Ebrahimi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Masood Bazrgar
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mehdi Hajian
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Tehran, Iran
| | - Mohammad H Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Tehran, Iran
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50
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Development and Application of Cryoprotectants. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1081:339-354. [DOI: 10.1007/978-981-13-1244-1_18] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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