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Abdelhady A, Mittan-Moreau D, Crane P, McLeod MJ, Cheong SH, Thorne RE. Ice formation and its elimination in cryopreservation of oocytes. RESEARCH SQUARE 2024:rs.3.rs-4144933. [PMID: 38826214 PMCID: PMC11142364 DOI: 10.21203/rs.3.rs-4144933/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Damage from ice and toxicity of ice-inhibiting cryoprotective agents (CPAs) are key issues in assisted reproduction of humans, domestic animals, and endangered species using cryopreserved oocytes and embryos. Ice formed in bovine oocytes (similar in size to oocytes of humans and most other mammals) after rapid cooling and during rapid warming were examined using synchrotron-based time-resolved x-ray diffraction. Using cooling rates, warming rates and CPA concentrations of current practice, oocytes show no ice after cooling but always develop large ice fractions - consistent with crystallization of most free water - during warming, so most ice-related damage must occur during warming. Increasing cooling rates allows oocytes soaked as in current practice to remain essentially ice free during both cooling and warming. Much larger convective warming rates are demonstrated and will allow routine ice-free cryopreservation with smaller CPA concentrations. These results clarify the roles of cooling, warming, and CPA concentration in generating ice in oocytes and establish the structure and grain size of ice formed. Ice formation can be eliminated as a factor affecting post-thaw oocyte viability and development in many species, improving outcomes and allowing other deleterious effects of the cryopreservation cycle to be independently studied.
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Marteil G, Metchat A, Dollet S, Cugnot C, Chaput L, Pereira B, Gremeau AS, Brugnon F. Vitrification of Human Oocytes Before or After Rescue-IVM Does not Impair Maturation Kinetics but Induces Meiotic Spindle Alterations. Reprod Sci 2024:10.1007/s43032-024-01596-7. [PMID: 38773027 DOI: 10.1007/s43032-024-01596-7] [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: 10/06/2023] [Accepted: 05/13/2024] [Indexed: 05/23/2024]
Abstract
Cryopreservation of in vitro matured oocytes is still considered as an experimental alternative to mature oocyte vitrification after ovarian stimulation. Here, we investigated whether rescue-IVM should be performed before or after vitrification. For this, 101 immature oocytes (germinal vesicle stage) from women undergoing ICSI were used. Oocytes were divided into three groups: freshly in vitro matured oocytes (IVM), freshly in vitro matured oocytes subsequently vitrified (IVM + VIT) and vitrified/warmed GV oocytes then in vitro matured (VIT + IVM). Oocyte maturation rates and kinetics were assessed using time-lapse technology. Spindle dimensions and polarity, chromosome alignment and cytoplasmic F-actin filament length and density were determined using confocal microscopy and quantitative image analyses. No differences in IVM rates (fresh IVM: 63.16% and IVM post-VIT: 59.38%, p = 0.72) and timings (17.73 h in fresh IVM, 17.33 h in IVM post-VIT, p = 0.72) were observed whether IVM is performed freshly or after vitrification. Meiotic spindles were shorter in VIT + IVM (10.47 µm vs 11.23 µm in IVM and 11.40 µm in IVM + VIT, p = 0.012 and p = 0.043) and wider in IVM + VIT (9.37 µm vs 8.12 µm in IVM and 8.16 µm VIT + IVM, p = 0.027 and p = 0.026). The length-to-width ratio was lower in vitrified groups (IVM + VIT: 1.19 and VIT + IVM: 1.26) compared to IVM (1.38), p = 0.013 and p = 0.014. No differences in multipolar spindle and chromosome misalignment occurrence and cytoplasmic F-actin filament length and density were observed between groups. Our results suggest vitrification before or after rescue-IVM does not seem to impair maturation rates and kinetics parameters but induces meiotic spindle alterations.
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Affiliation(s)
- Gaëlle Marteil
- Université Clermont Auvergne, Inserm, Imagerie Moléculaire Et Stratégies Théranostiques, UMR 1240, Clermont-Ferrand, France.
| | | | - Sandra Dollet
- Université Clermont Auvergne, Inserm, Imagerie Moléculaire Et Stratégies Théranostiques, UMR 1240, Clermont-Ferrand, France
| | - Camille Cugnot
- Université Clermont Auvergne, Inserm, Imagerie Moléculaire Et Stratégies Théranostiques, UMR 1240, Clermont-Ferrand, France
| | - Laure Chaput
- Université Clermont Auvergne, Inserm, Imagerie Moléculaire Et Stratégies Théranostiques, UMR 1240, Clermont-Ferrand, France
- Assistance Médicale À La Procréation, CECOS, CHU Estaing, Clermont-Ferrand, France
| | - Bruno Pereira
- Délégation À La Recherche Clinique Et À L'Innovation, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Anne Sophie Gremeau
- Assistance Médicale À La Procréation, CECOS, CHU Estaing, Clermont-Ferrand, France
| | - Florence Brugnon
- Université Clermont Auvergne, Inserm, Imagerie Moléculaire Et Stratégies Théranostiques, UMR 1240, Clermont-Ferrand, France.
- Assistance Médicale À La Procréation, CECOS, CHU Estaing, Clermont-Ferrand, France.
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Abdelhady AW, Mittan-Moreau DW, Crane PL, McLeod MJ, Cheong SH, Thorne RE. Ice formation and its elimination in cryopreservation of bovine oocytes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.15.567270. [PMID: 38014098 PMCID: PMC10680738 DOI: 10.1101/2023.11.15.567270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Damage from ice and potential toxicity of ice-inhibiting cryoprotective agents (CPAs) are key issues in assisted reproduction using cryopreserved oocytes and embryos. We use synchrotron-based time-resolved x-ray diffraction and tools from protein cryocrystallography to characterize ice formation within bovine oocytes after cooling at rates between ∼1000 °C/min and ∼600,000°C /min and during warming at rates between 20,000 and 150,000 °C /min. Maximum crystalline ice diffraction intensity, maximum ice volume, and maximum ice grain size are always observed during warming. All decrease with increasing CPA concentration, consistent with the decreasing free water fraction. With the cooling rates, warming rates and CPA concentrations of current practice, oocytes may show no ice after cooling but always develop substantial ice fractions on warming, and modestly reducing CPA concentrations causes substantial ice to form during cooling. With much larger cooling and warming rates achieved using cryocrystallography tools, oocytes soaked as in current practice remain essentially ice free during both cooling and warming, and when soaked in half-strength CPA solution oocytes remain ice free after cooling and develop small grain ice during warming. These results clarify the roles of cooling, warming, and CPA concentration in generating ice in oocytes, establish the character of ice formed, and suggest that substantial further improvements in warming rates are feasible. Ice formation can be eliminated as a factor affecting post-thaw oocyte viability and development, allowing other deleterious effects of the cryopreservation cycle to be studied, and osmotic stress and CPA toxicity reduced. Significance Statement Cryopreservation of oocytes and embryos is critical in assisted reproduction of humans and domestic animals and in preservation of endangered species. Success rates are limited by damage from crystalline ice, toxicity of cryoprotective agents (CPAs), and damage from osmotic stress. Time-resolved x-ray diffraction of bovine oocytes shows that ice forms much more readily during warming than during cooling, that maximum ice fractions always occur during warming, and that the tools and large CPA concentrations of current protocols can at best only prevent ice formation during cooling. Using tools from cryocrystallography that give dramatically larger cooling and warming rates, ice formation can be completely eliminated and required CPA concentrations substantially reduced, expanding the scope for species-specific optimization of post-thaw reproductive outcomes.
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Boutas I, Kontogeorgi A, Koufopoulos N, Dimas DT, Sitara K, Kalantaridou SN, Dimitrakakis C. Breast Cancer and Fertility Preservation in Young Female Patients: A Systematic Review of the Literature. Clin Pract 2023; 13:1413-1426. [PMID: 37987428 PMCID: PMC10660549 DOI: 10.3390/clinpract13060127] [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: 09/05/2023] [Revised: 10/20/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023] Open
Abstract
INTRODUCTION Breast cancer affects almost 1.5 million women worldwide below the age of 45 years each year. Many of these women will be advised to undergo adjuvant chemotherapy to minimize the risk of death or recurrence of the tumor. For these patients, chemotherapy is a known cause of infertility, as it can damage primordial follicles, which can lead to early menopause or premature ovarian insufficiency. This systematic review aims to synthesize the current evidence of the most suitable treatments for fertility preservation. METHODOLOGY This review was performed following the PRISMA guidelines. The authors conducted an extensive search from the last 15 years. Relevant studies were pursued in PubMed, Embase, and the Cochrane Library up until 31 July 2023. A total of seven eligible studies were identified. RESULTS From the reviewed literature, ovarian suppression with gonadotropin-releasing hormone agonists showed promising results in preserving fertility for breast cancer patients undergoing chemotherapy. Additionally, oocyte and embryo cryopreservation demonstrated successful outcomes, with embryo cryopreservation being the most effective option. Notably, the slow-freezing and vitrification methods were both effective in preserving embryos, with vitrification showing superior results in clinical-assisted reproductive technologies. Ovarian tissue cryopreservation emerged as a viable option for prepubertal girls and those unable to undergo conventional ovarian stimulation. The potential of in vitro maturation (IVM) as an alternative method presents a promising avenue for future fertility preservation research. DISCUSSION The most suitable treatments for fertility preservation in young patients is the temporary suppression with luteinizing hormone-releasing analogs, while the patient undergoes chemotherapy and cryopreservation. For cryopreservation, the physicians might deem it necessary to either cryopreserve ovarian tissue taken from the patient before any treatment or cryopreserve embryos/oocytes. Cryopreservation of oocytes and/or embryos is the most effective solution for fertility preservation in women of reproductive age, who have a sufficient ovarian reserve and are diagnosed with breast cancer, regardless of the histological type of the tumor. Because approximately 50% of young breast cancer patients are interested in becoming pregnant right after completion of therapy, the evolution and development of fertility preservation techniques promise to be very exciting.
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Affiliation(s)
- Ioannis Boutas
- Breast Unit, Rea Maternity Hospital, P. Faliro, 17564 Athens, Greece
| | - Adamantia Kontogeorgi
- Third Department of Obstetrics and Gynecology, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, 12462 Chaidari, Greece; (A.K.); (S.N.K.)
| | - Nektarios Koufopoulos
- Second Pathology Department, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, 12462 Chaidari, Greece;
| | - Dionysios T. Dimas
- Breast Unit, Athens Medical Center, Psychiko Clinic, 11525 Athens, Greece;
| | - Kyparissia Sitara
- Department of Internal Medicine, “Elpis” General Hospital, 11522 Athens, Greece;
| | - Sophia N. Kalantaridou
- Third Department of Obstetrics and Gynecology, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, 12462 Chaidari, Greece; (A.K.); (S.N.K.)
| | - Constantine Dimitrakakis
- First Department of Obstetrics and Gynecology, Alexandra University Hospital, National and Kapodistrian University of Athens, Lourou 4-2, 11528 Athens, Greece;
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Han E, Seifer DB. Oocyte Cryopreservation for Medical and Planned Indications: A Practical Guide and Overview. J Clin Med 2023; 12:jcm12103542. [PMID: 37240648 DOI: 10.3390/jcm12103542] [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: 03/28/2023] [Revised: 05/13/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Oocyte cryopreservation (OC) is the process in which ovarian follicles are stimulated, the follicular fluid is retrieved, and mature oocytes are isolated and vitrified. Since the first successful pregnancy utilizing previously cryopreserved oocytes in 1986, OC has become increasingly utilized as an option for future biologic children in patients facing gonadotoxic therapies, such as for the treatment of cancer. Planned OC, also termed elective OC, is growing in popularity as a means to circumvent age-related fertility decline. In this narrative review, we describe both medically indicated and planned OC, focusing on the physiology of ovarian follicular loss, OC technique and risks, timing of when OC should be performed, associated financial considerations, and outcomes.
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Affiliation(s)
- Eric Han
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
| | - David B Seifer
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
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The Impact of Oocyte Vitrification on Offspring: a Systematic Review. Reprod Sci 2022; 29:3222-3234. [DOI: 10.1007/s43032-022-00868-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/18/2022] [Indexed: 10/19/2022]
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Nilsson S, Jarfelt M, Järvholm S, Kluge L, Thurin-Kjellberg A. A survey of ovarian reserve and quality of life in female survivors of pediatric cancer. Acta Obstet Gynecol Scand 2021; 101:84-93. [PMID: 34783360 DOI: 10.1111/aogs.14290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/13/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Childhood cancer is rare; the incidence in Sweden is approximately 16 new cases/100 000 children each year. Reduced reproductive function and fertility are well-known side effects of cancer treatment. Anti-Müllerian hormone (AMH) has been shown to correlate well with antral follicle count in healthy women but is currently not recommended as the primary surveillance modality for evaluation of premature ovarian insufficiency in this patient group. Psychological wellbeing related to fertility could affect quality of life and should be included in long-term follow-up. The aim of the study is to present the baseline data from inclusion for a prospective follow-up study of fertility surveillance where both medical and psychological aspects of fertility in female childhood cancer survivors are considered. MATERIAL AND METHODS These are the first results from this longitudinal follow-up cohort study. Female adolescent and young adult survivors of pediatric cancer in Western Sweden were included from January 2016 to December 2018, a total of 54 participants. Median age at inclusion was 21 (15-29) years and median age at cancer diagnosis was 10 (1-17) years. AMH levels, antral follicle count, and data on fertility were recorded at inclusion and will be prospectively followed up. The study includes questionnaires and interviews concerning quality of life. This study is planned to continue until the participants reach the age of 40 years. RESULTS Eighteen of 54 (33%) participants had AMH levels below 1.0 µg/L and were considered to have high or very high risk of infertility. Median AMH level was 2.50 µg/L. Six women had immediate need of oocyte cryopreservation. Psychological assessment showed that more than one-third of participants (n = 20) had elevated anxiety scores. CONCLUSIONS One-third of female survivors of pediatric cancer in the study had high risk of low ovarian reserve, measured by a combination of AMH and antral follicle count, and many had signs of anxiety. The longitudinal study could contribute to better knowledge in the changes of AMH over time for this patient group. Psychological follow-up with questionnaires and interviews evaluating signs of depression and anxiety may serve as a model for future screening programs.
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Affiliation(s)
- Sofia Nilsson
- Department of Obstetrics & Gynecology, Varberg Hospital, Varberg, Sweden
| | - Marianne Jarfelt
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Stina Järvholm
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Linda Kluge
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Ann Thurin-Kjellberg
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, Sahlgrenska University Hospital, Gothenburg, Sweden
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Angel-Velez D, De Coster T, Azari-Dolatabad N, Fernandez-Montoro A, Benedetti C, Bogado Pascottini O, Woelders H, Van Soom A, Smits K. New Alternative Mixtures of Cryoprotectants for Equine Immature Oocyte Vitrification. Animals (Basel) 2021; 11:ani11113077. [PMID: 34827809 PMCID: PMC8614364 DOI: 10.3390/ani11113077] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Oocyte cryopreservation allows female gametes to be conserved for long periods, which would be of benefit for mares of high genetic merit, but its efficiency is not satisfactory yet. Therefore, the aim of this study was to optimize a vitrification protocol for equine oocytes using a systematic approach. We performed a side-by-side comparison of different cryoprotective agents (CPAs) during the vitrification and warming of equine oocytes. In the first experiment, a fixed mixture of CPAs that enter the oocyte was used, and three sugars were compared, which cannot penetrate the oocyte but provide protection through an osmotic effect. In the second experiment, one sugar from the first experiment was selected to compare three mixtures of CPAs that enter the oocyte. Overall, the embryo development was reduced after oocyte cryopreservation when compared to fresh oocytes. Yet, we were able to produce embryos with all six cryoprotective agent mixtures, and we identified one promising combination of cryoprotectants, consisting of propylene glycol, ethylene glycol, and galactose, that resulted in blastocyst rates in the same range as the fresh control group. Abstract Equine oocyte vitrification would benefit the growing in vitro embryo production programs, but further optimization of the protocol is necessary to reach clinical efficiency. Therefore, we aimed to perform a direct comparison of non-permeating and permeating cryoprotective agents (CPAs) during the vitrification and warming of equine immature oocytes. In the first experiment, cumulus oocytes complexes (COCs) were vitrified comparing sucrose, trehalose, and galactose in combination with ethylene glycol (EG) and dimethyl sulfoxide (DMSO). In the second experiment, the COCs were vitrified using three mixtures of permeating CPAs in a 50:50 volume ratio (ethylene glycol-dimethyl sulfoxide (ED), propylene glycol-ethylene glycol (PE), and propylene glycol-dimethyl sulfoxide (PD)) with galactose and warmed in different galactose concentrations (0.3 or 0.5 mol/L). Overall, all the treatments supported blastocyst formation, but the developmental rates were lower for all the vitrified groups in the first (4.3 to 7.6%) and the second (3.5 to 9.4%) experiment compared to the control (26.5 and 34.2%, respectively; p < 0.01). In the first experiment, the maturation was not affected by vitrification. The sucrose exhibited lower cleavage than the control (p = 0.02). Although the galactose tended to have lower maturation than trehalose (p = 0.060) and control (p = 0.069), the highest numerical cleavage and blastocyst rates were obtained with this CPA. In the second experiment, the maturation, cleavage, and blastocyst rates were similar between the treatments. Compared to the control, only the ED reached similar maturation (p = 0.02) and PE similar cleavage (p = 0.1). The galactose concentration during warming did not affect the maturation, cleavage, or blastocyst rates (p > 0.1), but the PE-0.3 exhibited the highest blastocyst rate (15.1%) among the treatments, being the only one comparable to the control (34.2%). As such, PE–galactose provides a valuable option for equine immature oocyte vitrification and should be considered for the future optimization of the protocol.
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Affiliation(s)
- Daniel Angel-Velez
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
- Research Group in Animal Sciences—INCA-CES, Universidad CES, Medellin 050021, Colombia
- Correspondence: or ; Tel.: +32-4-5614-4543
| | - Tine De Coster
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
| | - Nima Azari-Dolatabad
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
| | - Andrea Fernandez-Montoro
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
| | - Camilla Benedetti
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
| | - Osvaldo Bogado Pascottini
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
- Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Henri Woelders
- Wageningen Livestock Research, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands;
| | - Ann Van Soom
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
| | - Katrien Smits
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (T.D.C.); (N.A.-D.); (A.F.-M.); (C.B.); (O.B.P.); (A.V.S.); (K.S.)
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López A, Betancourt M, Ducolomb Y, Rodríguez JJ, Casas E, Bonilla E, Bahena I, Retana-Márquez S, Juárez-Rojas L, Casillas F. DNA damage in cumulus cells generated after the vitrification of in vitro matured porcine oocytes and its impact on fertilization and embryo development. Porcine Health Manag 2021; 7:56. [PMID: 34663451 PMCID: PMC8522150 DOI: 10.1186/s40813-021-00235-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/08/2021] [Indexed: 12/31/2022] Open
Abstract
Background The evaluation of the DNA damage generated in cumulus cells after mature cumulus-oocyte complexes vitrification can be considered as an indicator of oocyte quality since these cells play important roles in oocyte developmental competence. Therefore, the aim of this study was to determine if matured cumulus-oocyte complexes exposure to cryoprotectants (CPAs) or vitrification affects oocytes and cumulus cells viability, but also if DNA damage is generated in cumulus cells, affecting fertilization and embryo development. Results The DNA damage in cumulus cells was measured using the alkaline comet assay and expressed as Comet Tail Length (CTL) and Olive Tail Moment (OTM). Results demonstrate that oocyte exposure to CPAs or vitrification reduced oocyte (75.5 ± 3.69%, Toxicity; 66.7 ± 4.57%, Vitrification) and cumulus cells viability (32.7 ± 5.85%, Toxicity; 7.7 ± 2.21%, Vitrification) compared to control (95.5 ± 4.04%, oocytes; 89 ± 4.24%, cumulus cells). Also, significantly higher DNA damage expressed as OTM was generated in the cumulus cells after exposure to CPAs and vitrification (39 ± 17.41, 33.6 ± 16.69, respectively) compared to control (7.4 ± 4.22). In addition, fertilization and embryo development rates also decreased after exposure to CPAs (35.3 ± 16.65%, 22.6 ± 3.05%, respectively) and vitrification (32.3 ± 9.29%, 20 ± 1%, respectively). It was also found that fertilization and embryo development rates in granulose-intact oocytes were significantly higher compared to denuded oocytes in the control groups. However, a decline in embryo development to the blastocyst stage was observed after CPAs exposure (1.66 ± 0.57%) or vitrification (2 ± 1%) compared to control (22.3 ± 2.51%). This could be attributed to the reduction in both cell types viability, and the generation of DNA damage in the cumulus cells. Conclusion This study demonstrates that oocyte exposure to CPAs or vitrification reduced viability in oocytes and cumulus cells, and generated DNA damage in the cumulus cells, affecting fertilization and embryo development rates. These findings will allow to understand some of the mechanisms of oocyte damage after vitrification that compromise their developmental capacity, as well as the search for new vitrification strategies to increase fertilization and embryo development rates by preserving the integrity of the cumulus cells.
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Affiliation(s)
- Alma López
- Biological and Health Sciences Program, Metropolitan Autonomous University, Mexico City, Mexico.,Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa Campus, 09340, Mexico City, Mexico
| | - Miguel Betancourt
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa Campus, 09340, Mexico City, Mexico
| | - Yvonne Ducolomb
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa Campus, 09340, Mexico City, Mexico
| | - Juan José Rodríguez
- Genetic and Environmental Toxicology Research Unit, FES-Zaragoza-UMIEZ Campus II, National Autonomous University of Mexico, 09230, Mexico City, Mexico
| | - Eduardo Casas
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa Campus, 09340, Mexico City, Mexico
| | - Edmundo Bonilla
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa Campus, 09340, Mexico City, Mexico
| | - Iván Bahena
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa Campus, 09340, Mexico City, Mexico
| | - Socorro Retana-Márquez
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Av. San Rafael Atlixco 186, Leyes de Reforma, 09340, Mexico City, Mexico
| | - Lizbeth Juárez-Rojas
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Av. San Rafael Atlixco 186, Leyes de Reforma, 09340, Mexico City, Mexico
| | - Fahiel Casillas
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Av. San Rafael Atlixco 186, Leyes de Reforma, 09340, Mexico City, Mexico.
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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: 3] [Impact Index Per Article: 1.0] [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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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: 3] [Impact Index Per Article: 1.0] [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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Park JK, Lee JH, Park EA, Lim HJ, Lyu SW, Lee WS, Kim J, Song H. Development of Optimized Vitrification Procedures Using Closed Carrier System to Improve the Survival and Developmental Competence of Vitrified Mouse Oocytes. Cells 2021; 10:cells10071670. [PMID: 34359838 PMCID: PMC8304188 DOI: 10.3390/cells10071670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/28/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022] Open
Abstract
The open carrier system (OC) is used for vitrification due to its high efficiency in preserving female fertility, but concerns remain that it bears possible risks of cross-contamination. Closed carrier systems (CC) could be an alternative to the OC to increase safety. However, the viability and developmental competence of vitrified/warmed (VW) oocytes using the CC were significantly lower than with OC. We aimed to improve the efficiency of the CC. Metaphase II oocytes were collected from mice after superovulation and subjected to in vitro fertilization after vitrification/warming. Increasing the cooling/warming rate and exposure time to cryoprotectants as key parameters for the CC effectively improved the survival rate and developmental competence of VW oocytes. When all the conditions that improved the outcomes were applied to the conventional CC, hereafter named the modified vitrification/warming procedure using CC (mVW-CC), the viability and developmental competence of VW oocytes were significantly improved as compared to those of VW oocytes in the CC. Furthermore, mVW-CC increased the spindle normality of VW oocytes, as well as the cell number of blastocysts developed from VW oocytes. Collectively, our mVW-CC optimized for mouse oocytes can be utilized for humans without concerns regarding possible cross-contamination during vitrification in the future.
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Affiliation(s)
- Jae Kyun Park
- Department of Biomedical Sciences, CHA University, Seongnam 13488, Korea; (J.K.P.); (J.H.L.)
- CHA Fertility Center Gangnam, CHA University, Seoul 06125, Korea; (S.W.L.); (W.S.L.)
| | - Ju Hee Lee
- Department of Biomedical Sciences, CHA University, Seongnam 13488, Korea; (J.K.P.); (J.H.L.)
| | - Eun A Park
- CHA Fertility Center Seoul Station, CHA University, Seoul 04637, Korea;
| | - Hyunjung J. Lim
- Department of Veterinary Medicine, School of Veterinary Medicine, Konkuk University, Seoul 05029, Korea;
| | - Sang Woo Lyu
- CHA Fertility Center Gangnam, CHA University, Seoul 06125, Korea; (S.W.L.); (W.S.L.)
| | - Woo Sik Lee
- CHA Fertility Center Gangnam, CHA University, Seoul 06125, Korea; (S.W.L.); (W.S.L.)
| | - Jayeon Kim
- CHA Fertility Center Seoul Station, CHA University, Seoul 04637, Korea;
- Correspondence: (J.K.); (H.S.)
| | - Haengseok Song
- Department of Biomedical Sciences, CHA University, Seongnam 13488, Korea; (J.K.P.); (J.H.L.)
- Correspondence: (J.K.); (H.S.)
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Saadeldin IM, Moulavi F, Swelum AAA, Khorshid SS, Hamid HF, Hosseini SM. Vitrification of camel oocytes transiently impacts mitochondrial functions without affecting the developmental potential after intracytoplasmic sperm injection and parthenogenetic activation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:44604-44613. [PMID: 33029771 DOI: 10.1007/s11356-020-11070-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Oocyte vitrification preserves the female genetic resources of elite dromedary camels. In the current study, we aimed to explore the effects of vitrification of camel oocytes on mitochondrial activity, redox stress, and expression of genes related to mitochondrial function, apoptosis, pluripotency, and cytoskeleton. Moreover, we investigated developmental competence of vitrified oocytes after parthenogenetic activation. Oocytes vitrified with the Cryotop method were compared with the fresh oocytes. Our results showed that vitrification led to increased ROS production in oocytes as evidenced by an increase in the DCFDHA fluorescence intensity, and lower mitochondrial activity. At the molecular level, vitrification reduced mRNA expression of many genes, including those related to mitochondrial function (TFAM, MT-CO1, MFN1, ATP1A1, NRF1), pluripotency (SOX2 and POU5F1), and apoptosis (p53 and BAX). In contrast, expression of KLF4 and cytoskeleton-related genes (ACTB and KRT8) was not affected. However, we found no difference in the rates of oocyte survival, cleavage, and blastocyst development, and blastocyst hatching between fresh and vitrified oocytes after warming. Our results indicate that although vitrification of camel metaphase II (MII) oocytes adversely affected mitochondrial functions, the effect was transient without compromising the developmental potential of the oocytes after parthenogenetic activation.
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Affiliation(s)
- Islam M Saadeldin
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451, Saudi Arabia.
- Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt.
| | - Fariba Moulavi
- Department of Embryology, Camel Advanced Reproductive Technologies Centre, Government of Dubai, Dubai, United Arab Emirates
| | - Ayman Abdel-Aziz Swelum
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Sokhangouy Saiede Khorshid
- Department of Embryology, Camel Advanced Reproductive Technologies Centre, Government of Dubai, Dubai, United Arab Emirates
| | - Hossini-Fahraji Hamid
- Department of Embryology, Camel Advanced Reproductive Technologies Centre, Government of Dubai, Dubai, United Arab Emirates
| | - Sayyed Morteza Hosseini
- Department of Embryology, Camel Advanced Reproductive Technologies Centre, Government of Dubai, Dubai, United Arab Emirates.
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Creux H, Diaz M, Grynberg M, Papaxanthos-Roche A, Chansel-Debordeaux L, Jimenez C, Frantz S, Chevalier N, Takefman J, Hocké C. National survey on the opinions of French specialists in assisted reproductive technologies about social issues impacting the future revision of the French Bioethics laws. J Gynecol Obstet Hum Reprod 2020; 49:101902. [PMID: 32889113 DOI: 10.1016/j.jogoh.2020.101902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/16/2020] [Accepted: 08/29/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION France is known for its conservative and unique position in assisted reproductive technologies (ARTs). At the eve of the future revision of French Bioethics laws, we decided to conduct a national survey to examine the opinions of French specialists in ARTs about social issues. MATERIAL AND METHODS Descriptive study conducted in May 2017 in a university teaching hospital using an anonymous online questionnaire on current issues in ARTs. The questionnaire was sent by email to 650 French ARTs specialists, both clinicians and embryologists. RESULTS After 3 reminders, 408 responses were collected resulting in a participation rate of 62.7% (408/650). Concerning pre-implantation genetic testing, 80% of the physicians were in favor of expanding the indications, which in France are presently limited to incurable genetic diseases. Authorizing elective Fertility Preservation was supported by 93.4% of the specialists, but without social coverage for 86.3% of them. Concerning gamete donation, 77.4% of the French ARTs specialists were in favor of giving a financial compensation to donors, 92% promoted preserving their anonymity and 80.9% were against a directed donation. ARTs for single heterosexual women were supported by 63.4% of the French specialists and by 72.5% for lesbian couples. The legalization of surrogacy was requested by 55.2%. DISCUSSION Pending the revision of the French Bioethics laws, this survey provides an overview of the opinion of the specialists in ARTs on expanding ARTs for various social indications.Because of the evolution of social values, a more liberal and inclusive ART program is desired by the majority of ART specialists in France.
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Affiliation(s)
- Hélène Creux
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France; Reproductive Center, Polyclinique Saint Roch, 550 avenue du colonel André Pavelet, 34070 Montpellier, France.
| | - Marie Diaz
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France
| | - Michaël Grynberg
- Department of Reproductive Medicine and Fertility Preservation, Hôpital Antoine Béclère, Hôpitaux Universitaires Paris Sud, Assistance Publique - Hôpitaux de Paris, Clamart, France; Department of Reproductive Medicine and Fertility Preservation, Hôpital Jean Verdier, Hôpitaux Universitaires Paris-Seine-Saint-Denis, Assistance Publique- Hôpitaux de Paris, Bondy, France
| | - Aline Papaxanthos-Roche
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France
| | - Lucie Chansel-Debordeaux
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France
| | - Clément Jimenez
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France
| | - Sandrine Frantz
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France
| | - Nicolas Chevalier
- Reproductive Center, Polyclinique Saint Roch, 550 avenue du colonel André Pavelet, 34070 Montpellier, France
| | - Janet Takefman
- Department of Obstetrics and Gynecology, McGill UniversityHealth Center Reproductive Center, McGill University, Montreal, Quebec, Canada
| | - Claude Hocké
- Department of reproductive medicine, Bordeaux University Hospital, Hôpital Pellegrin, Place Amélie Raba-Léon, 33076 Bordeaux, France
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Abstract
Numerous factors affect vitrification success and post-thaw development of oocytes after in vitro fertilization. Therefore, elaboration of an optimal methodology ensuring higher cryotolerance of oocytes and subsequent blastocyst yield is still of great interest. This paper describes and evaluates critical factors affecting the success of oocyte vitrification. In particular, an appropriate oocyte stage such as maturation status (germinal vesicle stage, metaphase II stage), presence/absence of cumulus cells before vitrification, and the effect of follicle size, as well as different culture systems and media for in vitro production of embryos, the types and concentrations of cryoprotectants, and cooling and warming rates at vitrification are considered. Special attention is paid to various cryocarriers used for low-volume vitrification, which ensures safe storage of oocytes/embryos in liquid nitrogen and their successful post-thaw recovery. At the end, we focussed on how age of oocyte donors (heifers, cows) influences post-thaw development. This review summarizes results of recently published studies describing different methodologies of cryopreservation and post-thaw oocyte development with the main focus on vitrification of bovine oocytes.
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Jeong YH, Kim U, Lee SG, Ryu B, Kim J, Igor A, Kim JS, Jung CR, Park JH, Kim CY. Vitrification for cryopreservation of 2D and 3D stem cells culture using high concentration of cryoprotective agents. BMC Biotechnol 2020; 20:45. [PMID: 32843026 PMCID: PMC7449025 DOI: 10.1186/s12896-020-00636-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 08/10/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Vitrification is the most promising technology for successful cryopreservation of living organisms without ice crystal formation. However, high concentrations (up to ~ 6-8 M) of cryoprotective agents (CPAs) used in stem cell induce osmotic and metabolic injuries. Moreover, the application of conventional slow-freezing methods to cultures of 3-D organoids of stem cells in various studies, is limited by their size. RESULTS In this study, we evaluated the effect of high concentrations of CPAs including cytotoxicity and characterized human mesenchymal stem cell (MSC) at single cell level. The cell viability, cellular damage, and apoptotic mechanisms as well as the proliferation capacity and multipotency of cells subjected to vitrification were similar to those in the slow-freezing group. Furthermore, we identified the possibility of vitrification of size-controlled 3-D spheroids for cryopreservation of organoid with high survivability. CONCLUSIONS Our results demonstrate successful vitrification of both single cell and spheroid using high concentration of CPAs in vitro without cytotoxicity.
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Affiliation(s)
- Young-Hoon Jeong
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
| | - Ukjin Kim
- Department of Laboratory Animal Medicine, Research Institute for Veterinary Science, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seul-Gi Lee
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
| | - Bokyeong Ryu
- Department of Laboratory Animal Medicine, Research Institute for Veterinary Science, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jin Kim
- Department of Laboratory Animal Medicine, Research Institute for Veterinary Science, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | | | - Jong Soo Kim
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
| | - Cho-Rok Jung
- Gene Therapy Research Unit, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Jae-Hak Park
- Department of Laboratory Animal Medicine, Research Institute for Veterinary Science, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - C-Yoon Kim
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea. .,Kriorus, Klimentovsky Per, 115184, Moscow, Russia.
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Mallis P, Katsimpoulas M, Kostakis A, Dipresa D, Korossis S, Papapanagiotou A, Kassi E, Stavropoulos-Giokas C, Michalopoulos E. Vitrified Human Umbilical Arteries as Potential Grafts for Vascular Tissue Engineering. Tissue Eng Regen Med 2020; 17:285-299. [PMID: 32170557 PMCID: PMC7260347 DOI: 10.1007/s13770-020-00243-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/20/2020] [Accepted: 01/28/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The development of a biological based small diameter vascular graft (d < 6 mm), that can be properly stored over a long time period at - 196 °C, in order to directly be used to the patients, still remains a challenge. In this study the decellularized umbilical arteries (UAs) where vitrified, evaluated their composition and implanted to a porcine model, thus serving as vascular graft. METHODS Human UAs were decellularized using 3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonate (CHAPS) and sodium dodecyl sulfate (SDS) detergents. Then, vitrified with vitrification solution 55 (VS55) solution, remained for 6 months in liquid nitrogen and their extracellular matrix composition was compared to conventionally cryopreserved UAs. Additionally, total hydroxyproline, sulphated glycosaminoglycan and DNA content were quantified in all samples. Finally, the vitrified umbilical arteries implanted as common carotid artery interposition graft to a porcine animal model. RESULTS Decellularized and vitrified UAs characterized by proper preservation of extracellular matrix proteins and tissue architecture, whereas conventionally cryopreserved samples exhibited a disorganized structure. Total hydroxyproline content was preserved, although sulphated glycosaminoglycan and DNA contents presented significantly alterations in all samples. Implanted UAs successfully recellularized and remodeled as indicated by the histological analysis. CONCLUSION Decellularized and vitrified UAs retained their structure function properties and can be possible used as an alternative source for readily accessible small diameter vascular grafts.
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Affiliation(s)
- Panagiotis Mallis
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27, Athens, Greece.
- Department of Surgery and Surgical Oncology Unit of Red Cross Hospital Athens, 115 17, Athens, Greece.
- Department of Biological Chamistry, School of Medicine, National and Kapodistrian University of Athens, 115 17, Athens, Greece.
| | - Michalis Katsimpoulas
- Center of Experimental Surgery, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27, Athens, Greece
| | - Alkiviadis Kostakis
- Center of Experimental Surgery, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27, Athens, Greece
| | - Daniele Dipresa
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Sotiris Korossis
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Aggeliki Papapanagiotou
- Department of Surgery and Surgical Oncology Unit of Red Cross Hospital Athens, 115 17, Athens, Greece
- Department of Biological Chamistry, School of Medicine, National and Kapodistrian University of Athens, 115 17, Athens, Greece
| | - Eva Kassi
- Department of Surgery and Surgical Oncology Unit of Red Cross Hospital Athens, 115 17, Athens, Greece
- Department of Biological Chamistry, School of Medicine, National and Kapodistrian University of Athens, 115 17, Athens, Greece
- 1st Department of Internal Medicine, Laiko Hospital, Medical School, National and Kapodistrian University of Athens, 115 17, Athens, Greece
| | - Catherine Stavropoulos-Giokas
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27, Athens, Greece
| | - Efstathios Michalopoulos
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27, Athens, Greece
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Balkenende EME, van Rooij FB, van der Veen F, Goddijn M. Oocyte or ovarian tissue banking: decision-making in women aged 35 years or older facing age-related fertility decline. Reprod Biomed Online 2020; 41:271-278. [PMID: 32600943 DOI: 10.1016/j.rbmo.2020.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/04/2020] [Accepted: 04/22/2020] [Indexed: 10/24/2022]
Abstract
RESEARCH QUESTION Women who face age-related fertility decline have the option to safeguard future reproductive potential by banking oocytes or ovarian tissue. What are the methods that women prefer and what factors are important in their decision-making? DESIGN Qualitative interview study, participants were recruited through monthly information sessions at a university hospital on oocyte banking, postings on social media, websites and newsletters and snowball sampling. Women had to be aged 35 years or older, single, childless and with a possible future desire for motherhood. Key concepts of the Health Belief Model were used as framework for the analyses. RESULTS In total, 15 women participated in this qualitative study. For oocyte banking, they mentioned chances of success, extra time and faith in the technique and healthcare professionals as benefits. Risks for themselves or future children and costs were considered to be barriers in decision making. For ovarian tissue banking, the chances of success, the possibility of natural conception, the time investment and effect on menopausal symptoms were seen as benefits, and lack of experience and lack of information were considered barriers for themselves or their future children. Overall, they considered the procedures involved in oocyte banking as relatively 'easy', whereas ovarian tissue banking was seen as a more invasive procedure. CONCLUSION Most women preferred oocyte banking over ovarian tissue banking because of its relative convenience. Future quantitative research in a larger cohort is necessary to confirm the findings and provide more insight into the relative importance of the different factors influencing women's decision.
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Affiliation(s)
- Eva M E Balkenende
- Amsterdam UMC, University of Amsterdam, Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Meibergdreef 9, Amsterdam AZ 1105, The Netherlands.
| | - Floor B van Rooij
- Research Institute Child Development and Education, University of Amsterdam, Nieuwe Prinsengracht 130, Amsterdam VZ 1018, The Netherlands
| | - Fulco van der Veen
- Amsterdam UMC, University of Amsterdam, Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Meibergdreef 9, Amsterdam AZ 1105, The Netherlands
| | - Mariëtte Goddijn
- Amsterdam UMC, University of Amsterdam, Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Meibergdreef 9, Amsterdam AZ 1105, The Netherlands
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Martini AE, Doyle JO. Fertility Preservation Before Deployment: Oocyte and Sperm Freezing in Members of the Active Duty Military. Semin Reprod Med 2020; 37:232-238. [DOI: 10.1055/s-0040-1701633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractActive duty military service and deployment has the potential to compromise fertility through combat-related genitourinary injury, gonadotoxic exposures, and physical separation from a partner. Despite a growing interest among the military community as well as promising efficacy and safety data, fertility preservation remains an uncovered benefit for active duty soldiers. In 2016, the Pentagon proposed a program that would cover oocyte and sperm cryopreservation for any member of the active duty military desiring its use. Regrettably, that funding was not secured and predeployment fertility preservation remains an out-of-pocket expense. Today, advocacy groups, non-for-profit organizations, and physicians remain vigilant in their attempts to drive another government initiative through Congress. While activism continues, it is important to stress the value of fertility preservation counseling in soldiers' predeployment preparation and military family planning.
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Affiliation(s)
- Anne E. Martini
- Department of Reproductive Endocrinology and Infertility, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
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Zhe J, Zhang J, Chen S, Zhang W, Luo C, Zhou X, Chen X, Qiu Z, Li H, Wu X. [Causes of oocyte vitrification and its value in assisted reproductive technology]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:766-771. [PMID: 31340907 DOI: 10.12122/j.issn.1673-4254.2019.07.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the causes of oocyte vitrification and its application in assisted reproduction. METHODS We retrospectively analyzed the data of 26 patients with 27 cycles of oocyte vitrification cryopreservation undergoing intracytoplasmic sperm injection (ICSI) and embryo transfer between January, 2008 and October, 2018. The causes of oocyte vitrification and the outcomes of ICSI and clinical pregnancy were analyzed. RESULTS The causes of oocytes vitrification included mainly azoospermia or severe spermatogenesis disorder of the husband, failure to obtain sperms from the husband, failure of the husband to be present on the day of oocyte retrieval and acute diseases of the husband to not allow sperm collection. A total of 274 oocytes were frozen in 27 oocyte retrieval cycles, and 217 eggs were thawed in 19 cycles with a survival rate of 81.11% (176/217). The normal fertilization rate, cleavage rate and high-quality embryo rate was 74.81% (98/131), 89.80% (88/98) and 36.73% (36/98), respectively. Fifteen patients underwent embryo transfer, and the clinical pregnancy rate and live birth rate was 53.33% (8/15) and 33.33% (5/15), respectively. Compared with patients below 35 years of age, the patients aged above 35 years had significantly lower oocyte survival rate after thawing (82.76% vs 74.42%, P=0.211), clinical pregnancy rate (77.78% vs 16.67%, P=0.041) and live birth rate (55.56% vs 0, P=0.044). CONCLUSIONS Oocytes vitrification can be used as a remedy for infertile couples who fail to provide sperms due to male factors on the day of oocyte retrieval. Vitrification of the oocytes does not significantly affect the fertilization rate or the clinical pregnancy rate. The survival rate of the thawed oocytes is related to the age of the wife, and an age younger than 35 years can be optimal for achieving favorable clinical pregnancy outcomes after oocyte vitrification.
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Affiliation(s)
- Jing Zhe
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jun Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shiling Chen
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Weiqing Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chen Luo
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xingyu Zhou
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xin Chen
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhuolin Qiu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Huixi Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiaomin Wu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Kontopoulos G, Simopoulou M, Zervomanolakis I, Prokopakis T, Dimitropoulos K, Dedoulis E, Grigorakis S, Agapitou K, Nikitos E, Rapani A, Vlahos N. Cleavage Stage versus Blastocyst Stage Embryo Transfer in Oocyte Donation Cycles. ACTA ACUST UNITED AC 2019; 55:medicina55060293. [PMID: 31226849 PMCID: PMC6631639 DOI: 10.3390/medicina55060293] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/04/2019] [Accepted: 06/13/2019] [Indexed: 12/26/2022]
Abstract
Background and Objective: During the last few years, a trend has been noted towards embryos being transferred at the blastocyst stage, which has been associated with improved rates regarding implantation and clinical pregnancy in comparison to cleavage stage embryo transfers. There is a limited number of studies investigating this notion in oocyte donation cycles employing cryopreserved embryos. The aim of this study is to evaluate the implantation potential and clinical pregnancy rates between the day 3 cleavage stage and blastocyst stage embryo transfers in oocyte donation cycles employing vitrified embryos. Methods: This is a retrospective evaluation of oocyte donation frozen–thawed transfers completed in our clinic from January 2017 to December 2017. Intracytoplasmic sperm injection was conducted for all oocytes. Following fertilization, all embryos were cryopreserved either at the cleavage or blastocyst stage. Embryo transfer of two embryos was performed under direct sonographic guidance in all cases. Results: Our results confirmed a 55.6% clinical pregnancy (CP) resulting from day 3 embryo transfers, a 68.8% CP from day 5, and 71.4% CP from day 6. Significantly improved pregnancy rates were related to embryo transfers at the blastocyst stage when compared to cleavage stage transfers (68.9% and 55.6% respectively, p = 0.016). The risk with regards to multiple pregnancies was similar. Conclusion: Our findings indicate that in oocyte donation cycles employing vitrified embryos, embryo transfer at the blastocyst stage is accompanied with a significant improvement in pregnancy rates and merits further investigation.
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Affiliation(s)
- George Kontopoulos
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Mara Simopoulou
- Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology, Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens, 76, Vasilisis Sofias Avenue, 11528 Athens, Attica, Greece.
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias, 11527 Athens, Attica, Greece.
| | - Ioannis Zervomanolakis
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Thomas Prokopakis
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Kostas Dimitropoulos
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Evaggelos Dedoulis
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Stylianos Grigorakis
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Kristi Agapitou
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Eros Nikitos
- Institute of LIFE Fertility center, IASO Maternity Hospital, 37-39, Kifissias Avenue, 15123 Athens, Attica, Greece.
| | - Anna Rapani
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias, 11527 Athens, Attica, Greece.
| | - Nikos Vlahos
- Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology, Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens, 76, Vasilisis Sofias Avenue, 11528 Athens, Attica, Greece.
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Marci R, Mallozzi M, Di Benedetto L, Schimberni M, Mossa S, Soave I, Palomba S, Caserta D. Radiations and female fertility. Reprod Biol Endocrinol 2018; 16:112. [PMID: 30553277 PMCID: PMC6295315 DOI: 10.1186/s12958-018-0432-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 10/24/2018] [Indexed: 11/18/2022] Open
Abstract
Hundreds of thousands of young women are diagnosed with cancer each year, and due to recent advances in screening programs, diagnostic methods and treatment options, survival rates have significantly improved. Radiation therapy plays an important role in cancer treatment and in some cases it constitutes the first therapy proposed to the patient. However, ionizing radiations have a gonadotoxic action with long-term effects that include ovarian insufficiency, pubertal arrest and subsequent infertility. Cranial irradiation may lead to disruption of the hypothalamic-pituitary-gonadal axis, with consequent dysregulation of the normal hormonal secretion. The uterus might be damaged by radiotherapy, as well. In fact, exposure to radiation during childhood leads to altered uterine vascularization, decreased uterine volume and elasticity, myometrial fibrosis and necrosis, endometrial atrophy and insufficiency. As radiations have a relevant impact on reproductive potential, fertility preservation procedures should be carried out before and/or during anticancer treatments. Fertility preservation strategies have been employed for some years now and have recently been diversified thanks to advances in reproductive biology. Aim of this paper is to give an overview of the various effects of radiotherapy on female reproductive function and to describe the current fertility preservation options.
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Affiliation(s)
- Roberto Marci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, via L. Borsari, 46, 44121, Ferrara, Italy.
- Faculty of Medicine, University of Geneva, Geneva, Switzerland.
- Division of Obstetrics and Gynecology, University Hospital of Geneva, Boulevard de la Cluse 30, 1205, Geneva, Switzerland.
| | - Maddalena Mallozzi
- Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, University of Rome "Sapienza", Rome, Italy
| | - Luisa Di Benedetto
- Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, University of Rome "Sapienza", Rome, Italy
| | - Mauro Schimberni
- Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, University of Rome "Sapienza", Rome, Italy
| | - Stefano Mossa
- Radiation Oncology Unit, S Andrea Hospital, University Sapienza, Rome, Italy
| | - Ilaria Soave
- Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, University of Rome "Sapienza", Rome, Italy
| | - Stefano Palomba
- Unit of Obstetrics and Gynecology, Grande Ospedale Metropolitano 'Bianchi - Melacrino - Morelli', Reggio Calabria, Italy
| | - Donatella Caserta
- Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, University of Rome "Sapienza", Rome, Italy
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Mohsenzadeh M, Salehi-Abargouei A, Tabibnejad N, Karimi-Zarchi M, Khalili MA. Impact of vitrification on human oocytes before and after in vitro maturation: A systematic review and meta-analysis. Eur J Obstet Gynecol Reprod Biol 2018; 227:19-26. [PMID: 29864696 DOI: 10.1016/j.ejogrb.2018.05.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 05/16/2018] [Accepted: 05/21/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE There are controversies regarding in vitro maturation (IVM) procedure, the time of storing frozen oocytes and maturation stage of vitrified oocytes and its impact on oocytes fertilization capability. The aim of this systematic review and meta-analysis was to evaluate the impact of vitrification on human oocytes during IVM procedure. STUDY DESIGN A systematic review with meta-analysis was undertaken. Main search terms were those related key words. We searched Medline, Embase, Scopus and ISI web of science to detect English-language studies. The final search was performed on 27 January 2018. The original articles which studied laboratory outcomes after vitrification of MII or GV oocytes before or after IVM were included. Exclusion criteria were animal trials and the studies that performed cryopreservation using slow-freeze method. Oocyte maturation, survival, fertilization and cleavage rates were assessed. Bias and quality assessments were applied. RESULTS 2476 articles were screened and after duplicates removing together with application of inclusion and exclusion criteria, 14 studies assessed for eligibility. Finally 5 studies included for analysis. All studies compared laboratory outcomes between oocytes that vitrified at the GV stage and those which firstly matured in vitro, and then vitrified. Meta-analysis showed that vitrification of oocytes at GV stage had a negative impact on maturation rate (RR = 1.28, 95% CI: 0.96-1.70); but not on cleavage rate (RR = 1.07, 95% CI: 0.70-1.64); fertilization rate (RR = 0.99, 95% CI: 0.85-1.14) and survival rate(RR = 1.01, 95% CI: 0.96-1.06). CONCLUSION In general, Based on our results, oocyte vitrification decreases the maturation rate. In addition, survival, fertilization as well as cleavage rates did not significantly differ between the oocytes vitrified before IVM versus oocytes vitrified after IVM.
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Affiliation(s)
- Mehdi Mohsenzadeh
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Gerash Al-Zahra Fertility Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Amin Salehi-Abargouei
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Department of Nutrition, Faculty of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Nasim Tabibnejad
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mojgan Karimi-Zarchi
- Department of Obstetrics and Gynecology, Shahid Sadoughi Hospital, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Lestari SW, Ilato KF, Pratama MIA, Fitriyah NN, Pangestu M, Pratama G, Margiana R. Sucrose ‘Versus’ Trehalose Cryoprotectant Modification in Oocyte Vitrification : A Study of Embryo Development. ACTA ACUST UNITED AC 2018. [DOI: 10.13005/bpj/1351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Numerous studies reported that vitrification, an ultra-rapid cooling technique, seems to be highly effective and could increase oocyte survival rate rather than slow freezing. The successful of oocyte vitrification depends on the proper combination of type and concentration of cryoprotectant. This study was addressed to determine the effects of the combination of type and concentration of cryoprotectants of vitrification media, notably in the embryo development. This experimental research was conducted by using oocyte obtained from thirty-two adult female Deutschland, Denken and Yoken (DDY) mice (7-8 weeks old). The MII mice oocytes were vitrified within 24 h after retrieval using the Cryotop method with cryoprotectants as follow : sucrose (16.5% EG, 16.5% DMSO, 0.5 mol/l sucrose), trehalose (16.5% EG, 16.5% DMSO, 0.5 mol/l trehalose) and Kitazato. The embryo development and morphological grading was observed at 2-cell and 8-cells under reverse phase light microscope and inverted microscope. This study demonstrated a good embryo development and morphological grading in sucrose and trehalose vitrification media. In embryo development, trehalose medium seems more superior compared to sucrose medium, even though Kitazato was the most superior compared to both. In the morphological grading, in 2-cells embryo, there were no significant differences between the three cryoprotectants, While, in 8-cells embryo, trehalose medium appeared to be superior compared to sucrose medium, even though seemed more inferior compared to Kitazato. The appropriate type and concentration of sugar as extracellular cryoprotectant was trehalose in oocyte vitrification based on embryo development, compared to sucrose.
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Affiliation(s)
- Silvia W. Lestari
- Department of Medical Biology, Faculty of Medicine Universitas Indonesia
| | - Khairunnisa F. Ilato
- Bachelor Program for Medical Sciences, Faculty of Medicine Universitas Indonesia
| | - M. Iqbal A. Pratama
- Bachelor Program for Medical Sciences, Faculty of Medicine Universitas Indonesia
| | - Nurin N. Fitriyah
- Master Program for Biomedical Sciences, Faculty of Medicine Universitas Indonesia
| | - Mulyoto Pangestu
- Department of Obstetric and Gynecology, Monash Clinical School, Monash University
| | - Gita Pratama
- Department of Obstetric and Gynecology, Faculty of Medicine Universitas Indonesia
| | - Ria Margiana
- Department of Anatomy, Faculty of Medicine Universitas Indonesia
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26
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Raposo VL. Single, successful lady is looking for... a baby. JBRA Assist Reprod 2017; 21:161-162. [PMID: 28837021 DOI: 10.5935/1518-0557.20170032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Vera Lúcia Raposo
- Faculty of Law of Macao University, Macao, China.,Faculty of Law of Coimbra University, Coimbra, Portugal
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Risk of Contamination of Gametes and Embryos during Cryopreservation and Measures to Prevent Cross-Contamination. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1840417. [PMID: 28890894 PMCID: PMC5584362 DOI: 10.1155/2017/1840417] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/17/2017] [Accepted: 07/10/2017] [Indexed: 11/30/2022]
Abstract
The introduction and widespread application of vitrification are one of the most important achievements in human assisted reproduction techniques (ART) of the past decade despite controversy and unclarified issues, mostly related to concerns about disease transmission. Guidance documents published by US Food and Drug Administration, which focused on the safety of tissue/organ donations during Zika virus spread in 2016, as well as some reports of virus, bacteria, and fungi survival to cryogenic temperatures, highlighted the need for a review of the way how potentially infectious material is handled and stored in ART-related procedures. It was experimentally demonstrated that cross-contamination between liquid nitrogen (LN2) and embryos may occur when infectious agents are present in LN2 and oocytes/embryos are not protected by a hermetically sealed device. Thus, this review summarizes pertinent data and opinions regarding the potential hazard of infectious transmission through cryopreserved and banked reproductive cells and tissues in LN2. Special attention is given to the survival of pathogens in LN2, the risk of cross-contamination, vitrification methods, sterility of LN2, and the risks associated with the use of straws, cryovials, and storage dewars.
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Arayatham S, Tiptanavattana N, Tharasanit T. Effects of vitrification and a Rho-associated coiled-coil containing protein kinase 1 inhibitor on the meiotic and developmental competence of feline oocytes. J Reprod Dev 2017; 63:511-517. [PMID: 28804108 PMCID: PMC5649101 DOI: 10.1262/jrd.2017-004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Oocyte cryopreservation is the technique of choice for the long-term storage of female gametes. However, it induces an irreversible loss of oocyte viability and function. We examined the effects of vitrification and a
Rho-associated coiled-coil containing protein kinase 1 (ROCK1) inhibitor (ROCKi) on the meiotic and developmental competence of feline oocytes. We examined the expression of LIM kinase (LIMK) 1 and 2, with and
without ROCKi treatment. Cumulus oocyte complexes (COCs) were matured in vitro with 0, 10, 20, and 40 µM ROCKi. The oocytes were subsequently assessed for maturation rate and embryo development following
in vitro fertilization. We repeated the COC experiment, but vitrified and warmed the COCs prior to culture. We detected LIMK1 and LIMK2 expression in feline oocytes, which could
be downregulated by ROCKi treatment. The ROCKi at 10 µM affected neither meiotic nor developmental competence (P > 0.05, versus control). However, high concentrations of ROCKi during maturation induced meiotic arrest at
metaphase I. Appropriate concentrations of ROCKi significantly improved the normal fertilization rate of vitrified warmed oocytes (49.4 ± 3.4%) compared with that of the control (42.8 ± 8.6%, P < 0.05). The ROCKi also
significantly improved the embryo cleavage rate (36.1 ± 3.8%) as compared with the non-treated control (27.4 ± 2.5%, P < 0.05). Thus, this study revealed that the main mediators of the ROCK cascade (LIM kinases) are expressed
in feline oocytes. The ROCKi (10 µM) did not compromise the meiotic or developmental competence of feline oocytes. In addition, 10 µM ROCKi improved the cytoplasmic maturation of vitrified–warmed oocytes as indicated by their
fertilization competence.
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Affiliation(s)
- Saengtawan Arayatham
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Narong Tiptanavattana
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Theerawat Tharasanit
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
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No difference in mitochondrial distribution is observed in human oocytes after cryopreservation. Arch Gynecol Obstet 2017. [DOI: 10.1007/s00404-017-4428-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
Current freezing technology, especially the vitrification method, has markedly improved oocyte survival rate after warming, and the pregnancy rate is comparable to that achieved with fresh oocytes. However, most groups report using oocytes matured in vivo for vitrification. Although immature oocytes can be vitrified successfully, clinical outcomes do not reach that of vitrification of matured oocytes. The current literature suggests that oocytes should be vitrified at mature metaphase II (M-II) stage following IVM rather than at the immature germinal vesicle (GV) stage, because the potential for oocyte maturation is reduced when vitrification is performed on immature oocytes at the GV stage.
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Affiliation(s)
- Ri-Cheng Chian
- Department of Obstetrics and Gynecology, McGill University, 687 Pine Avenue West, H3A 1A1, Montreal, Canada.
| | - Yixin Xu
- Department of Obstetrics and Gynecology, McGill University, 687 Pine Avenue West, H3A 1A1, Montreal, Canada
| | - Dana Keilty
- Department of Obstetrics and Gynecology, McGill University, 687 Pine Avenue West, H3A 1A1, Montreal, Canada
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Martínez M, Obradors A, Vernaeve V, Santaló J, Vassena R. Oocyte vitrification does not affect early developmental timings after intracytoplasmic sperm injection for women younger than 30 years old. Mol Reprod Dev 2016; 83:624-9. [PMID: 27283498 DOI: 10.1002/mrd.22667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 06/04/2016] [Indexed: 11/06/2022]
Abstract
Oocyte vitrification causes a temporary disassembly of the metaphase plate and spindle, which needs time to recover after warming. As a consequence, early post-fertilization events-such as timing of second polar body extrusion-might be altered, with unknown effects on preimplantation development, timing to pronuclear breakdown, and timing of cleavages. The aim of this study was to evaluate if differences exist among these events when comparing embryos obtained from fresh-donated versus vitrified/warmed oocytes from young women. We performed a prospective study with 201 embryos from 100 fresh and 101 vitrified/warmed oocytes that were subsequently fertilized by intracytoplasmic sperm injection. Kaplan-Meier curves of each time period were generated, in which we observed that median developmental times did not differ between embryos from fresh versus vitrified/warmed oocytes among all the metrics assessed. Thus, for young women without fertility problems, no differences exist between the timing of early developmental milestones in embryos derived from fresh or vitrified oocytes, and vitrification does not affect the preimplantation development of the resulting embryos. Mol. Reprod. Dev. 83: 624-629, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
| | | | | | - Josep Santaló
- Departamento de Biología Celular, Fisiología e Immunología, Universidad Autónoma de Barcelona, Barcelona, Spain
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Segers I, Mateizel I, Van Moer E, Smitz J, Tournaye H, Verheyen G, De Vos M. In vitro maturation (IVM) of oocytes recovered from ovariectomy specimens in the laboratory: a promising "ex vivo" method of oocyte cryopreservation resulting in the first report of an ongoing pregnancy in Europe. J Assist Reprod Genet 2015; 32:1221-31. [PMID: 26253691 DOI: 10.1007/s10815-015-0528-9] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 06/30/2015] [Indexed: 12/14/2022] Open
Abstract
PURPOSE We present our center's experience with 34 consecutive cases who underwent in vitro maturation (IVM) of oocytes obtained from ovariectomy specimens and compare our data with updated literature data. METHODS Feasibility and efficiency of oocyte collection during ovarian tissue processing was assessed by the recovery rate, maturation rate, and embryological development after IVM. RESULTS On average, 14 immature oocytes were retrieved per patient during ovarian tissue processing in 33/34 patients. The overall maturation rate after IVM was 36%. The maturation rate correlated with the age of the patient and the duration of IVM. Predominately, oocyte vitrification was performed. Eight couples preferred embryo cryopreservation. Here, a 65% fertilization rate was obtained and at least one good-quality day 3 embryo was cryopreserved in 7/8 couples. The retrieval of oocytes ex vivo resulted in mature oocytes or embryos available for vitrification in 79% of patients. One patient with ovarian insufficiency following therapeutic embolization of the left uterine and the right ovarian artery because of an arteriovenous malformation had an embryo transfer of one good-quality warmed embryo generated after IVM ex vivo, which resulted in an ongoing clinical pregnancy. CONCLUSIONS IVM of oocytes obtained ex vivo during the processing of ovarian cortex prior to cryopreservation is a procedure with emerging promise for patients at risk for fertility loss, as illustrated by the reported pregnancy. However, more data are needed in order to estimate the overall success rate and safety of this novel approach.
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Affiliation(s)
- Ingrid Segers
- Centre for Reproductive Medicine, UZ Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium,
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Somigliana E, Viganò P, Filippi F, Papaleo E, Benaglia L, Candiani M, Vercellini P. Fertility preservation in women with endometriosis: for all, for some, for none? Hum Reprod 2015; 30:1280-6. [PMID: 25883035 DOI: 10.1093/humrep/dev078] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 03/17/2015] [Indexed: 12/14/2022] Open
Abstract
The increasing confidence with the techniques of oocyte and ovarian cortex freezing has prompted their potential use for patient categories other than those at risk of early menopause due to cancer treatments. Women affected by every iatrogenic or pathologic condition known to compromise ovarian function severely have been considered as potential candidates for fertility preservation. Among them, women with endometriosis may represent a particularly suitable group since they are at increased risk of premature ovarian exhaustion and about half of them will experience infertility. Based on the currently available notions on the intricate relationships between endometriosis, infertility and damage to the ovarian reserve, we speculate that fertility preservation may be of interest for women with endometriosis, in particular for those with bilateral unoperated endometriomas and for those who previously had excision of unilateral endometriomas and require surgery for a contralateral recurrence. Young age at diagnosis may be an independent but pivotal additional factor to be taken into consideration in the balance of the pros and cons of fertility preservation. On the other hand, we argue against the introduction of fertility preservation for endometriosis in routine clinical practice. To date, only few cases have been reported and there are insufficient data for robust cost-utility analyses. It is noteworthy that endometriosis is a relatively common disease and systematically including affected women in a fertility preservation program would have profound clinical, logistic and financial effects. More clinical data and in-depth economic analysis are imperative prior to recommending its routine use.
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Affiliation(s)
- Edgardo Somigliana
- Obstet-Gynecol Dept, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Paola Viganò
- Obstet-Gynecol Dept, San Raffaele Scientific Institute, Milan, Italy
| | - Francesca Filippi
- Obstet-Gynecol Dept, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Enrico Papaleo
- Obstet-Gynecol Dept, San Raffaele Scientific Institute, Milan, Italy
| | - Laura Benaglia
- Obstet-Gynecol Dept, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Massimo Candiani
- Obstet-Gynecol Dept, San Raffaele Scientific Institute, Milan, Italy
| | - Paolo Vercellini
- Obstet-Gynecol Dept, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy Università degli Studi di Milano, Milan, Italy
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Open versus closed systems for vitrification of human oocytes and embryos. Reprod Biomed Online 2015; 30:325-33. [DOI: 10.1016/j.rbmo.2014.12.012] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 12/09/2014] [Accepted: 12/10/2014] [Indexed: 11/22/2022]
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De Munck N, Petrussa L, Verheyen G, Staessen C, Vandeskelde Y, Sterckx J, Bocken G, Jacobs K, Stoop D, De Rycke M, Van de Velde H. Chromosomal meiotic segregation, embryonic developmental kinetics and DNA (hydroxy)methylation analysis consolidate the safety of human oocyte vitrification. ACTA ACUST UNITED AC 2015; 21:535-44. [DOI: 10.1093/molehr/gav013] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 03/26/2015] [Indexed: 01/11/2023]
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