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Ovarian cryopreservation

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https://www.readbyqxmd.com/read/28442066/characterisation-and-cryopreservation-of-the-ovarian-preantral-follicle-population-from-spix-s-yellow-toothed-cavies-galea-spixii-wagler-1831
#1
Érica C G Praxedes, Gabriela L Lima, Andréia M Silva, Carlos A C Apolinário, José A B Bezerra, Ana L P Souza, Moacir F Oliveira, Ana P R Rodrigues, Alexandre R Silva
The aim of the present study was to characterise the ovarian preantral follicle (PF) population and to establish a solid surface vitrification (SSV) process using dimethyl sulfoxide (DMSO) as a cryoprotectant for preservation of ovarian tissue from yellow-toothed cavies (Galea spixii). Ovaries were fixed for PF population analysis or were subjected to the SSV process. The mean (± s.e.m.) PF population per ovarian pair was estimated to be 416.0±342.8. There were 140.0±56.0 (63.4%) and 125.0±58.0 (64.0%) primary follicles on the right and left ovaries, respectively...
March 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28438562/first-successful-vitrification-of-salmonid-ovarian-tissue
#2
Jelena Lujić, Zoran Marinović, Simona Sušnik Bajec, Ida Djurdjevič, Eszter Kása, Béla Urbányi, Ákos Horváth
Due to a lack of cryopreservation protocols for fish eggs and embryos, alternative techniques which will enable storage of female genetic resources are crucial for future development of reproduction management in conservation biology and aquaculture. Experiments were conducted to develop an optimal vitrification protocol for cryopreservation of brown trout Salmo trutta juvenile ovarian tissue. Needle immersed vitrification (NIV) method was used where ovaries were pinned on an acupuncture needle, passaged through equilibration and vitrification solutions containing different combinations and concentrations of methanol (MeOH), propylene glycol (PG) and dimethyl sulfoxide (Me2SO) and subsequently plunged into liquid nitrogen...
April 21, 2017: Cryobiology
https://www.readbyqxmd.com/read/28433373/preimplantation-genetic-diagnosis-for-aneuploidy-testing-in-women-older-than-44-years-a-multicenter-experience
#3
Filippo Maria Ubaldi, Danilo Cimadomo, Antonio Capalbo, Alberto Vaiarelli, Laura Buffo, Elisabetta Trabucco, Susanna Ferrero, Elena Albani, Laura Rienzi, Paolo E Levi Setti
OBJECTIVE: To report laboratory and clinical outcomes in preimplantation genetic diagnosis for aneuploidies (PGD-A) cycles for women 44 to 47 years old. DESIGN: Multicenter, longitudinal, observational study. SETTING: In vitro fertilization (IVF) centers. PATIENT(S): One hundred and thirty-seven women aged 44.7 ± 0.7 years (range: 44.0-46.7) undergoing 150 PGD-A cycles during April 2013 to January 2016. INTERVENTION(S): Quantitative polymerase chain reaction-based PGD-A on trophectoderm biopsies and cryopreserved euploid single-embryo transfer (SET)...
April 19, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28433369/fertility-preservation-and-refreezing-of-transplanted-ovarian-tissue-a-potential-new-way-of-managing-patients-with-low-risk-of-malignant-cell-recurrence
#4
Stine Gry Kristensen, Veronica Giorgione, Peter Humaidan, Birgit Alsbjerg, Anne-Mette Bay Bjørn, Erik Ernst, Claus Yding Andersen
OBJECTIVE: To report the first successful refreezing of ovarian tissue recovered more than 3 years after transplantation in a woman previously treated for early-stage ovarian cancer. DESIGN: Evaluation of cryopreserved and grafted ovarian tissue. SETTING: University hospital. PATIENT(S): A 23-year-old woman diagnosed with stage 1C ovarian mucinous cystadenocarcinoma. INTERVENTION(S): The patient underwent ovarian tissue cryopreservation for fertility preservation and subsequent heterotopic transplantation for fertility restoration 9 years after freezing...
April 19, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28421499/chapter-15-development-of-a-nationwide-network-for-ovarian-tissue-cryopreservation
#5
Jana Liebenthron, Markus Montag
Ovarian tissue cryopreservation is gaining much interest since the publication of the first live birth after retransplantation of frozen-thawed tissue in 2004 (Donnez et al., Lancet 364:1405-1410, 2004). In contrast to cryopreservation of gametes and embryos, ovarian tissue freezing is a complex requiring a proper approach in order to make this a viable option for fertility preservation of cancer patients. Due to the need in terms of laboratory space, equipment, personnel, and adequate logistics, an ovarian tissue cryobank is most economic if managed as a centralized service unit that interacts with numerous clinics covering the surgical part...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28421496/chapter-12-human-ovarian-tissue-slow-freezing
#6
Debra A Gook
Cryopreservation of human ovarian tissue is now being accepted as a mainstream ART laboratory procedure. The procedure described has been validated for use at the histological and functional level, and, recently, unequivocal evidence of preservation of primordial follicles has been demonstrated following twin births from cryopreserved ovarian tissue grafted at a heterotopic site.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28421488/chapter-4-role-of-antioxidants-and-antifreeze-proteins-in-cryopreservation-vitrification
#7
Seul Ki Kim, Hye Won Youm, Jung Ryeol Lee, Chang Suk Suh
In recent years, supplementation of antioxidants and antifreeze proteins during cryopreservation/vitrification has significantly improved the survival and function of oocytes and ovarian tissues (OT) in animal models. In this chapter, the experimental protocols for the use of antioxidants and antifreeze proteins in cryopreservation/vitrification are described.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28421486/chapter-2-utility-of-animal-models-for-human-ovarian-tissue-cryopreservation
#8
Seul Ki Kim, Jung Ryeol Lee, S Samuel Kim
Success in cryopreservation of ovarian tissue (OT) in animal models has led to develop efficient cryo-technologies for human ovarian tissue. In this chapter, cryopreservation protocols developed for animal experiments are described.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28419412/eliminating-malignant-cells-from-cryopreserved-ovarian-tissue-is-possible-in-leukaemia-patients
#9
Michelle Soares, Pascale Saussoy, Mathilde Maskens, Hélène Reul, Christiani A Amorim, Jacques Donnez, Marie-Madeleine Dolmans
Reimplantation of cryopreserved ovarian tissue (OT) can successfully restore ovarian function in young cancer patients after gonadotoxic treatment. However, for patients with leukaemia, there is a risk of malignant cell transmission. Our objective was to evaluate minimal disseminated disease in OT from leukaemia patients and test a follicle isolation technique to obtain disease-free follicle suspensions. Cryopreserved OT from 12 leukaemia patients was thawed and analysed by histology and long-term xenografting in immunosuppressed mice...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28416291/cumulative-live-birth-rate-after-gnrh-agonist-trigger-and-elective-cryopreservation-of-all-embryos-in-high-responders
#10
Veljko Vlaisavljević, Borut Kovačič, Jure Knez
Elective embryo cryopreservation after using gonadotrophin-releasing hormone (GnRH) antagonist protocols and GnRH agonist triggering is becoming an increasingly important part of medically assisted reproduction. We designed a single-centre retrospective study to assess the cumulative probability of achieving a live birth through consecutive transfers of vitrified-warmed blastocysts after elective embryo cryopreservation in high-responding patients. Hence, 123 women identified to be at high risk for developing ovarian hyperstimulation syndrome were included...
April 7, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28398024/gonadotropin-releasing-hormone-analogues-for-the-prevention-of-chemotherapy-induced-premature-ovarian-failure-in-breast-cancer-patients
#11
Benedetta Conte, Lucia Del Mastro
Since the survival of patients with cancer has significantly improved, chemotherapy-related premature ovarian failure (POF) in young cancer survivors has become a major issue in oncology. POF is associated with several health-related negative consequences, including menopausal symptoms, increased risk of cardiovascular diseases, osteoporosis, sexual disfunction, and infertility1-5. According to the major international guidelines, embryo/oocyte cryopreservation are the standard procedures for fertility preservation in young cancer women6,7...
April 10, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28395560/fertility-preservation-in-women-with-cns-tumors
#12
Alicia Tosoni, Damiano Balestrini, Alba A Brandes
Fertility impairment due to treatments is a major concern for adolescents and young adult patients who survived cancer. Areas covered: Chemotherapy may determine a detrimental effect on ovary function, leading to infertility, and premature ovarian failure. Embryo and oocyte cryopreservation is a standard strategy for fertility preservation; other strategies, such as gonadal tissue cryopreservation and the use of gonadotropin - releasing hormone agonist, are still considered experimental. There are few data available regarding the effect of pregnancy on glioma, which indicates tumor progression during pregnancy in 33-45% of patients...
May 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28392002/does-cryopreservation-of-sperm-affect-fertilization-in-nonobstructive-azoospermia-or-cryptozoospermia
#13
Natali Schachter-Safrai, Gilad Karavani, Eliahu Levitas, Michael Friger, Atif Zeadna, Eitan Lunenfeld, Iris Har-Vardi
OBJECTIVE: To compare intracytoplasmic sperm injection (ICSI) outcomes with the use of fresh or frozen-thawed ejaculated or testicular sperm in patients with cryptozoospermia or nonobstructive azoospermia. DESIGN: Retrospective cohort study. SETTING: Tertiary medical center IVF unit. PATIENT(S): A total of 274 patients evaluated from 1999 to 2011. INTERVENTION(S): A total of 103 patients underwent testicular sperm extraction (TESE) because of nonobstructive azoospermia, and 171 patients were diagnosed with cryptozoospermia...
April 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28382680/long-acting-recombinant-fsh-in-random-start-ovarian-stimulation-protocols-for-fertility-preservation-in-women-with-cancer
#14
Veronica Sarais, Alessio Paffoni, Luca Pagliardini, Francesca Filippi, Fabio Martinelli, Giorgia Mangili, Massimo Candiani, Enrico Papaleo
INTRODUCTION: The objective of this study was to assess effectiveness and the potential benefits of the use of long-acting recombinant follicle-stimulating hormone (FSH) in random-start protocol for fertility preservation in women with cancer. MATERIAL AND METHODS: This is a retrospective before and after study performed between February 2013 and December 2015 in women that underwent ovarian hyper-stimulation for oocyte cryobanking using a random start approach...
April 6, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28377895/short-term-culture-of-vitrified-human-ovarian-cortical-tissue-to-assess-the-cryopreservation-outcome-molecular-and-morphological-analysis
#15
Mehdi Ramezani, Mojdeh Salehnia, Mina Jafarabadi
BACKGROUND: The aim of the present study was to evaluate the effectiveness of human ovarian vitrification protocol followed with in vitro culture at the morphological and molecular levels. METHODS: Ovarian tissues were obtained from 10 normal transsexual women and cut into small pieces and were divided into non-vitrified and vitrified groups and some of the tissues fragments in both groups were randomly cultured for two weeks. The morphological study using hematoxylin and eosin and Masson's trichrome staining was done...
January 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/28372892/ovarian-tissue-cryopreservation-in-female-to-male-transgender-people-insights-into-ovarian-histology-and-physiology-after-prolonged-androgen-treatment
#16
Chloë De Roo, Sylvie Lierman, Kelly Tilleman, Karen Peynshaert, Kevin Braeckmans, Mirte Caanen, Cornelius B Lambalk, Steven Weyers, Guy T'Sjoen, Ria Cornelissen, Petra De Sutter
Female-to-male transgender people (trans men) are faced with the risk of losing their reproductive potential owing to gender-affirming hormone treatment and genital reconstructive surgery. This observational, prospective cohort study investigates the effect of prolonged androgen therapy on their ovarian histology and fertility preservation perspectives. Hormone serum levels, ovarian histology and cumulus-oocyte complexes (COC) of 40 transsexual men were analysed at the moment of hysterectomy with bilateral oophorectomy in the context of genital reconstructive surgery after testosterone treatment (58...
March 21, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28365880/efficiency-of-mannitol-supplemented-medium-during-adding-removing-ovarian-tissue-with-penetrating-cryoprotective-agents
#17
Viktoriya Kiroshka, Iryna Trutaieva, Tatyana Bondarenko
Most protocols to cryopreserve ovarian tissue utilize the permeable cryoprotective agents (CPAs) in 1.5 M concentration. However the issues related to the ability to use higher concentrations of CPAs have remained open. The research aim was to assess the efficiency of media containing osmotically active sugars (sucrose, mannitol) at stepwise adding/removing of 3 M dimethylsulphoxide (DMSO) and propanediol (PROH) on ovarian tissue integrity. After the CPAs adding/removing the ovarian tissue injury was histologically examined, as well as the oocyte volume in tissue structure was assessed...
April 1, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28365839/recent-advances-in-the-field-of-ovarian-tissue-cryopreservation-and-opportunities-for-research
#18
REVIEW
Camille Ladanyi, Amir Mor, Mindy S Christianson, Namisha Dhillon, James H Segars
PURPOSE: The purpose of this study was to summarize the latest advances and successes in the field of ovarian tissue cryopreservation while identifying gaps in current knowledge that suggest opportunities for future research. METHODS: A systematic review was performed according to PRISMA guidelines for all relevant full-text articles in PubMed published in English that reviewed or studied historical or current advancements in ovarian tissue cryopreservation and auto-transplantation techniques...
April 1, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28365199/outcomes-of-immature-oocytes-collected-from-ovarian-tissue-for-cryopreservation-in-adult-and-prepubertal-patients
#19
Giovanna Fasano, Julie Dechène, Raffaella Antonacci, Jamila Biramane, Anne-Sophie Vannin, Anne Van Langendonckt, Fabienne Devreker, Isabelle Demeestere
The efficiency of oocyte in-vitro maturation (IVM) and vitrification procedures after ex-vivo collection from ovarian tissue were assessed according to patient age, number of retrieved oocytes and tissue transport conditions. The combined procedure was performed in 136 patients: 130 adults (mean 27.6 ± 5.6 years) and six prepubertal girls (mean 8.7 ± 2.3 years). A higher mean number of oocytes were collected in girls compared with adults (11.5 ± 8.0 versus 3.8 ± 4.2, respectively, P < 0.001) but the percentage of degenerated oocytes was significantly higher in girls (35...
March 20, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28349510/fresh-versus-frozen-embryo-transfers-in-assisted-reproduction
#20
REVIEW
Kai Mee Wong, Madelon van Wely, Femke Mol, Sjoerd Repping, Sebastiaan Mastenbroek
BACKGROUND: In general, in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) implies a single fresh and one or more frozen-thawed embryo transfers. Alternatively, the 'freeze-all' strategy implies transfer of frozen-thawed embryos only, with no fresh embryo transfers. In practice, both strategies can vary technically including differences in freezing techniques and timing of transfer of cryopreservation, that is vitrification versus slow freezing, freezing of two pro-nucleate (2pn) versus cleavage-stage embryos versus blastocysts, and transfer of cleavage-stage embryos versus blastocysts...
March 28, 2017: Cochrane Database of Systematic Reviews
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