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Ovarian tissue cryopreservation

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https://www.readbyqxmd.com/read/28510115/application-of-decellularized-tissue-scaffolds-in-ovarian-tissue-transplantation
#1
Enes Taylan, Kutluk Oktay
In tissue engineering, decellularized scaffolds have been proved to have remarkable capacity to promote regeneration in various organs such as kidney, heart, lung, and liver. Marrying the field of cryobiology and reproductive medicine resulted in considerable progress and breakthroughs, which led to the emergence of ovarian tissue cryopreservation and transplantation as a promising option for fertility preservation. Here we describe an innovative application of decellularized tissue scaffolds as a regenerative platform for reconstruction of ovarian grafts for auto-transplantation...
May 17, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28502527/effects-of-different-sucrose-concentrations-on-vitrified-porcine-preantral-follicles-qualitative-and-quantitative-analysis
#2
Paula Rocío Gabriel, Pablo Torres, María Celeste Fratto, Humberto Cisale, Juan Alberto Claver, Daniel Marcelo Lombardo, María Laura Fischman
The aim of the present study was to perform a qualitative and quantitative analysis of the effect of different sucrose concentrations combined with ethylene glycol in the preservation of vitrified porcine preantral follicles. Fragments of ovarian cortex were vitrified in cryotubes containing 200 μl of the vitrification solution (30% Ethylene Glycol; 20% Fetal Bovine Serum; 0 M-0.25 M - 0.75 M or 1 M sucrose) and stored in liquid nitrogen for a week. Histological analysis showed that after vitrification the number of normal follicles decreased compared to the fresh tissue (control)...
May 11, 2017: Cryobiology
https://www.readbyqxmd.com/read/28486360/ovarian-mucinous-cystadenoma-after-ovarian-graft
#3
Carole Fajau-Prevot, Yann Tanguy Le Gac, Christine Chevreau, Clémentine Cohade, Nicolas Gatimel, Jean Parinaud, Roger Leandri
BACKGROUND: Freezing strips of ovarian cortex before chemotherapy followed by transplantation is an experimental method to preserve fertility for reproductive-aged women with cancer. We report a case of a cancer patient who developed a mucinous cystadenoma in a grafted piece of ovarian cortex. CASE: A 32-year-old woman with a Ewing sarcoma had ovarian cryopreservation using cortical strip freezing before receiving chemotherapy. Five years later she had no ovarian function, and the strips were thawed and grafted back onto the ovary...
May 5, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28459598/practices-and-attitudes-regarding-women-undergoing-fertility-preservation-a-survey-of-the-national-physicians-cooperative
#4
Pietro Bortoletto, Rafael Confino, Brigid M Smith, Teresa K Woodruff, Mary Ellen Pavone
PURPOSE: To describe physician attitudes and variations in oncofertility treatment strategies. METHODS: An exploratory online survey administered between December 1, 2014 and January 27, 2015 to 185 members of the National Physicians Cooperative (NPC). RESULTS: Twenty-eight percent (52 of 185) of NPC members responded to the online survey. Fifty percent of respondents were obstetrician-gynecologists working largely in academic medical centers...
May 1, 2017: Journal of Adolescent and Young Adult Oncology
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
#5
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
#6
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/28433369/fertility-preservation-and-refreezing-of-transplanted-ovarian-tissue-a-potential-new-way-of-managing-patients-with-low-risk-of-malignant-cell-recurrence
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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/28395560/fertility-preservation-in-women-with-cns-tumors
#13
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/28377895/short-term-culture-of-vitrified-human-ovarian-cortical-tissue-to-assess-the-cryopreservation-outcome-molecular-and-morphological-analysis
#14
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
#15
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
#16
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
#17
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
#18
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/28333228/efficacy-of-ovarian-tissue-cryopreservation-for-fertility-preservation-lessons-learned-from-545-cases
#19
P Jadoul, A Guilmain, J Squifflet, M Luyckx, R Votino, C Wyns, M M Dolmans
STUDY QUESTION: How effective is ovarian tissue cryopreservation (OTC)? SUMMARY ANSWER: In our cohort of patients who underwent OTC, premature ovarian failure (POF) rates, return rates and pregnancy rates after autotransplantation were 31.5, 4.4 and 33%, respectively. WHAT IS KNOWN ALREADY: OTC for fertility purposes has been performed for >20 years now. With over 86 live births reported worldwide and success rates of ~30% after autotransplantation of frozen-thawed ovarian cortex, the procedure should no longer be considered experimental...
May 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28322537/what-is-new-in-2017-update-on-fertility-preservation-in-cancer-patients
#20
Katharina Winkler-Crepaz, Bettina Böttcher, Bettina Toth, Ludwig Wildt, Susanne Hofer-Tollinger
Prevention of fertility loss due to cancer treatment as well as non-malignant causes has gained importance during the last decades. Clinically applied modalities for fertility preservation in cancer patients include cryopreservation of oocytes and embryos, the application of GnRH agonists, ovarian tissue banking, and cryopreservation of ejaculated or surgically extracted sperm. In addition, several new possibilities to restore fertility are currently being investigated, such as the establishment of in vitro culture systems for gonadal tissue, the development of artificial gonads, and the application of germline stem cells...
March 21, 2017: Minerva Endocrinologica
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