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Ovarian cryopreservation

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https://www.readbyqxmd.com/read/27906588/fertility-preservation-in-pediatric-and-adolescent-oncology-patients-the-decision-making-process-of-parents
#1
Nancy Li, Yasmin Jayasinghe, Matthew A Kemertzis, Paddy Moore, Michelle Peate
PURPOSE: Decisions surrounding fertility preservation (FP) in children, adolescents, and adults can be difficult due to the distress of a cancer diagnosis, time constraints for decision-making, and lack of efficacy data. This review examines the decision-making process of oncology patients and their parents (if patients are in the pediatric or adolescent population) to better understand experiences of decisional conflict and regret. METHODS: Two electronic databases, Embase and Pubmed, were searched using the terms (Decision-making OR Conflict (Psychology) OR Decision regret) AND (Freezing OR Oocyte OR Ovarian tissue OR Semen preservation OR Fertility preservation OR Cryopreservation) AND (Neoplasms OR Cancer OR Chemotherapy OR Drug therapy OR Radiotherapy)...
December 1, 2016: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/27904170/twenty-five-year-old-woman-with-bilateral-borderline-ovarian-tumour-desiring-to-preserve-fertility-case-report-and-literature-review-on-the-current-state-of-fertility-preservation-in-women-with-borderline-ovarian-tumours
#2
S Findeklee, L Lotz, K Heusinger, I Hoffmann, R Dittrich, M W Beckmann
Borderline ovarian tumours are semimalignant tumours occurring unilaterally or bilaterally with a peak incidence among women of reproductive age. Since the affected women often wish to preserve fertility, particular precautions must be taken when counselling the patient and obtaining consent prior to planning an individual treatment. Options for preserving fertility include an organ-sparing surgical procedure and cryopreservation of oocytes and/or ovarian tissue. In this article, we report on a 25-year-old patient with a bilateral seromucinous borderline tumour who desired all fertility-preserving options...
November 2016: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/27892637/distribution-of-follicles-in-canine-ovarian-tissues-and-xenotransplantation-of-cryopreserved-ovarian-tissues-with-even-distribution-of-follicles
#3
I Wakasa, M Hayashi, Y Abe, H Suzuki
Ovarian follicles are not homogeneously distributed within the ovarian cortex in several species of mammals. Yet to maximize the reproducibility of experimental results of ovarian transplantation, it is essential to assess the degree of density and distribution of follicles in ovarian tissues before their transplantation. In this study, the ovarian cortex from 13 immature bitches (ten purebred and three mongrels) was sectioned into 1.0- to 1.5-mm(3) cubes, those were fixed, sectioned and stained with haematoxylin and eosin...
November 28, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27882769/-current-issues-of-reproductive-medicine-in-the-czech-republic
#4
P Ventruba, J Žáková, M Ješeta, D Rumpík, M Brandejská, I Crha, D Hlinka, L Jelínková, E Oráčová, J Pavelková, K Řežábek, K Veselá
INTRODUCTION: During the 25th symposium of assisted reproduction in Brno was lunch time organised as the lunch table discussion on the selected topics of assisted reproduction. More than 150 specialists reviewed themes related to gynecology and embryology.Discussed topics: Lunch table discussion covered the following topics: (1) Cross-border health care in assisted reproduction; (2) Indication for PGS (preimplantation genetic screening) in the context of actual information; (3) Does ovarian stimulation belong to the ambulance of registering gynecologists? (4) Therapy with clomifen - only for IVF specialists? (5) How and with whom should psychological support be directed during IVF? (6) Stimulation in women with low ovarian reserve; (7) Is basic semen analyses sufficient? (8) Time-lapse systems as relevant markers of embryonic development; (9) How to be oriented with choices of media and consumables in the IVF lab, and (10) "Freeze All" - is this new trend in cryopreservation suitable for all? CONCLUSIONS: Panel conclusions were presented during the afternoon session, which had great attendance, featured lively commentary, and produced some definitive consensus...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27870915/effects-of-angiopoietin-2-on-transplanted-mouse-ovarian-tissue
#5
Hye Won Youm, Jaewang Lee, Eun Jung Kim, Hyun Sun Kong, Jung Ryeol Lee, Chang Suk Suh, Seok Hyun Kim
Transplantation of ovarian tissue (OT) is currently the only clinical option to restore fertility with cryopreserved OT. However, follicle loss caused by ischemia and slow revascularization occurs in transplanted OT. To shorten the ischemic period and promote angiogenesis, some angiogenic factors have been used. Angiopoietin-2 (Ang2) is one of the major angiogenic factors and has been reported to promote blood vessels and increase vascular permeability in ischemic and/or hypoxic environment. This study was performed to investigate the effects of Ang2 on follicle integrity and revascularization of transplanted mouse OT...
2016: PloS One
https://www.readbyqxmd.com/read/27865446/the-use-of-utrogestan-during-controlled-ovarian-hyperstimulation-in-normally-ovulating-women-undergoing-in%C3%A2-vitro-fertilization-or-intracytoplasmic-sperm-injection-treatments-in-combination-with-a-freeze-all-strategy-a-randomized-controlled-dose-finding-study
#6
Xiuxian Zhu, Hongjuan Ye, Yonglun Fu
OBJECTIVE: To compare the clinical characteristics in a Utrogestan and hMG protocol with the use of different doses of Utrogestan in normally ovulating women undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) treatments. DESIGN: Prospective controlled study. SETTING: Tertiary-care academic medical center. PATIENT(S): A total of 150 infertile patients undergoing IVF/ICSI treatments. INTERVENTION(S): Utrogestan and hMG were administered simultaneously beginning on cycle day 3...
November 16, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27862396/research-on-reproduction-is-essential-for-captive-breeding-of-endangered-carnivore-species
#7
K Jewgenow, B C Braun, M Dehnhard, J Zahmel, F Goeritz
Assisted reproductive technology (ART) has great potential for conservation, but its successful application in captive breeding programmes of endangered species is often compromised by limited background on species' biology. Although carnivore species benefit from knowledge obtained in domesticated species (dogs, cats and ferrets), the focus of research is different. In pet animals, research in reproduction has mainly been focused on ovarian function and contraception, although substantial progress has also been made in the field of in vitro embryo production, transgenic embryos and cloning to aid relevant medical models...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27852727/ovarian-tissue-culture-in-presence-of-vegf-and-fetuin-stimulates-follicle-growth-and-steroidogenesis
#8
Ebrahim Asadi, Atefeh Najafi, Ashraf Moeini, Reihaneh Pirjani, Gholamreza Hassanzadeh, Saideh Mikaeili, Ensieh Salehi, Emmanuel Adutwum, Mansoureh Soleimani, Fariba Khosravi, Mahmood Barati, Farid Abohassani
Ovarian tissue cryopreservation together with follicle culture provides a promising technique for fertility preservation in cancer patients. The study aimed to evaluate follicle parameters in a culture medium supplemented with VEGFA165 and/or fetuin. Vitrified-warmed ovarian cortical pieces were divided randomly into four culture groups consisting of basic culture medium (control), and the basic culture medium supplemented with VEGFA165, fetuin or both. After six days of culture, we evaluated the following: percentage of resting, primary and secondary growing follicles; survival rate; steroid hormones production; levels of reactive oxygen species, lipid peroxidation and total antioxidant capacity; and developmental and antioxidant gene expression...
November 16, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27852688/the-role-of-intracytoplasmic-sperm-injection-in-non-male-factor-infertility-in-advanced-maternal-age
#9
Samer Tannus, Weon-Young Son, Ashley Gilman, Grace Younes, Tal Shavit, Michael-Haim Dahan
STUDY QUESTION: Does ICSI improve reproductive outcomes compared with conventional IVF when used for non-male factor infertility in women aged 40 years and over? SUMMARY ANSWER: There is no advantage of ICSI over conventional IVF in women aged 40 years and over when used for non-male factor infertility. WHAT IS KNOWN ALREADY: The use of ICSI has increased dramatically in recent years and is being applied for indications other than male factor infertility...
November 16, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27852632/predicting-the-chances-of-a-live-birth-after-one-or-more-complete-cycles-of-in-vitro-fertilisation-population-based-study-of-linked-cycle-data-from-113%C3%A2-873-women
#10
David J McLernon, Ewout W Steyerberg, Egbert R Te Velde, Amanda J Lee, Siladitya Bhattacharya
OBJECTIVE:  To develop a prediction model to estimate the chances of a live birth over multiple complete cycles of in vitro fertilisation (IVF) based on a couple's specific characteristics and treatment information. DESIGN:  Population based cohort study. SETTING:  All licensed IVF clinics in the UK. National data from the Human Fertilisation and Embryology Authority register. PARTICIPANTS:  All 253 417 women who started IVF (including intracytoplasmic sperm injection) treatment in the UK from 1999 to 2008 using their own eggs and partner's sperm...
November 16, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27836979/a-mild-ovarian-stimulation-strategy-in-women-with-poor-ovarian-reserve-undergoing-ivf-a-multicenter-randomized-non-inferiority-trial
#11
M A Youssef, M van Wely, H Al-Inany, T Madani, N Jahangiri, S Khodabakhshi, M Alhalabi, M Akhondi, S Ansaripour, R Tokhmechy, L Zarandi, A Rizk, M El-Mohamedy, E Shaeer, M Khattab, M H Mochtar, F van der Veen
STUDY QUESTION: In subfertile women with poor ovarian reserve undergoing IVF does a mild ovarian stimulation strategy lead to comparable ongoing pregnancy rates in comparison to a conventional ovarian stimulation strategy? SUMMARY ANSWER: A mild ovarian stimulation strategy in women with poor ovarian reserve undergoing IVF leads to similar ongoing pregnancy rates as a conventional ovarian stimulation strategy. WHAT IS KNOWN ALREADY: Women diagnosed with poor ovarian reserve are treated with a conventional ovarian stimulation strategy consisting of high-dose gonadotropins and pituitary downregulation with a long mid-luteal start GnRH-agonist protocol...
November 11, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27832793/cryopreservation-and-xenografting-of-human-ovarian-fragments-medulla-decreases-the-phosphatidylserine-translocation-rate
#12
Vladimir Isachenko, Plamen Todorov, Evgenia Isachenko, Gohar Rahimi, Bettina Hanstein, Mahmoud Salama, Peter Mallmann, Andrey Tchorbanov, Paul Hardiman, Natalie Getreu, Markus Merzenich
BACKGROUND: Phosphatidylserine is the phospholipid component which plays a key role in cell cycle signaling, specifically in regards to necrosis and apoptosis. When a cell affected by some negative factors, phosphatidylserine is no longer restricted to the intracellular side of membrane and can be translocated to the extracellular surface of the cell. Cryopreservation can induce translocation of phosphatidylserine in response to hypoxia, increasing intracellular Ca(2+), osmotic disruption of cellular membranes, generation of reactive oxygen species and lipid peroxidation...
November 10, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27827818/oocyte-embryo-and-blastocyst-cryopreservation-in-art-systematic-review-and-meta-analysis-comparing-slow-freezing-versus-vitrification-to-produce-evidence-for-the-development-of-global-guidance
#13
REVIEW
Laura Rienzi, Clarisa Gracia, Roberta Maggiulli, Andrew R LaBarbera, Daniel J Kaser, Filippo M Ubaldi, Sheryl Vanderpoel, Catherine Racowsky
BACKGROUND: Successful cryopreservation of oocytes and embryos is essential not only to maximize the safety and efficacy of ovarian stimulation cycles in an IVF treatment, but also to enable fertility preservation. Two cryopreservation methods are routinely used: slow-freezing or vitrification. Slow-freezing allows for freezing to occur at a sufficiently slow rate to permit adequate cellular dehydration while minimizing intracellular ice formation. Vitrification allows the solidification of the cell(s) and of the extracellular milieu into a glass-like state without the formation of ice...
November 8, 2016: Human Reproduction Update
https://www.readbyqxmd.com/read/27817861/-fertility-preservation-in-adolescents-and-young-adults-with-cancer
#14
REVIEW
Christine Rousset-Jablonski, Florian Chevillon, Nathalie Dhedin, Catherine Poirot
Fertility impairment due to treatments is a major concern for patients who have survived cancer in adolescence or as a young adult. The impact of cancer treatments on fertility depends on the age at treatments, types and cumulative doses of chemotherapy, radiation doses to organs at risk, and on surgeries conducted. Fertility preservation strategies have been developed for many years, and recently diversified thanks to advances in reproductive biology. In female adolescents and young adults, ovarian stimulation followed by oocyte (or embryo) vitrification, ovarian tissue cryopreservation, and sometimes oocyte vitrification after in vitro maturation are options that can be discussed...
November 3, 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27816926/a-mother-s-gift-of-life-exploring-the-concerns-and-ethical-aspects-of-fertility-preservation-for-mother-to-daughter-oocyte-donation
#15
REVIEW
E M E Balkenende, W Dondorp, M C Ploem, C B Lambalk, M Goddijn, F Mol
With the introduction of oocyte vitrification, a special form of intergenerational intrafamilial medically assisted reproduction (IMAR) has now become feasible: fertility preservation for mother-to-daughter oocyte donation (FPMDD). For girls diagnosed with premature ovarian insufficiency (POI), banking of their mothers' oocytes can preserve the option of having genetically related offspring. Since policy documents on IMAR do not discuss specific concerns raised by FPMDD, clinicians can feel at a loss for guidance with regard to handling these requests...
November 5, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27816923/cryopreservation-of-ovarian-tissue-for-fertility-preservation-in-a-large-cohort-of-young-girls-focus-on-pubertal-development
#16
A K Jensen, C Rechnitzer, K T Macklon, M R S Ifversen, N Birkebæk, N Clausen, K Sørensen, J Fedder, E Ernst, C Yding Andersen
STUDY QUESTION: Is there an association between the need for medical puberty induction and the diagnosis or treatment received in girls who have undergone cryopreservation of ovarian tissue for fertility preservation? SUMMARY ANSWER: There was a clear association between the intensity of treatment received and requirement for medical puberty induction but no association with the diagnosis. WHAT IS KNOWN ALREADY: Although it cannot be predicted which girls will become infertile or develop premature ovarian insufficiency (POI) following intensive chemotherapy or irradiation, patients who are at high risk of POI should be offered ovarian tissue cryopreservation (OTC)...
November 5, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27810160/immature-oocyte-retrieval-and-in%C3%A2-vitro-oocyte-maturation-at-different-phases-of-the-menstrual-cycle-in-women-with-cancer-who-require-urgent-gonadotoxic-treatment
#17
Helene Creux, Patricia Monnier, Weon-Young Son, Togas Tulandi, William Buckett
OBJECTIVE: To evaluate the feasibility and the efficacy of in vitro maturation (IVM) when immature oocyte collection was performed in the early follicular, late follicular, or luteal phases in women with cancer who require urgent chemotherapy. DESIGN: Retrospective cohort study. SETTING: University teaching hospital. PATIENT(S): One-hundred and sixty-four women with cancer undergoing IVM treatment for fertility preservation...
October 31, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27795832/fertility-sparing-management-in-cervical-cancer-balancing-oncologic-outcomes-with-reproductive-success
#18
REVIEW
Karla Willows, Genevieve Lennox, Allan Covens
BACKGROUND: Cervical cancer is the fourth most common cancer among women worldwide, many of who are still within their reproductive lifespan. Advances in screening and treatment have increased the 5-year survival for early stage disease to over 90 % in developed countries. The focus is now shifting to reducing morbidity and improving fertility outcomes for cervical cancer patients. Radical trachelectomy with lymph node assessment became the standard of care for selected women with lesions <2 cm who desire fertility preservation...
2016: Gynecologic Oncology Research and Practice
https://www.readbyqxmd.com/read/27787477/assessment-of-ovarian-reserve-and-fertility-preservation-strategies-in-children-treated-for-cancer
#19
Laura Guzy, Isabelle Demeestere
INTRODUCTION: The survival rate of chemotherapy treatments of malignant cancer or non- malignant conditions are continuously improving. As a result, there is an increased number of patients who received a gonadotoxic treatment during childhood and who later face fertility issues. Depending on the extent of the damage to the ovaries, acute or late complications may occur. Acute ovarian failure is defined by permanent amenorrhea after a high-risk treatment. When the drugs used are less gonadotoxic, ovarian insufficiency might appear later...
October 27, 2016: Minerva Ginecologica
https://www.readbyqxmd.com/read/27775302/-minimally-invasive-surgery-in-pediatric-oncology-tertiary-center-experience
#20
J Gómez-Chacón Villalba, L Rodríguez Caraballo, A Marco Macián, V Segarra Llido, J J Vila Carbó
AIMS: To describe our experience using Minimally Invasive Surgery (MIS) techniques in tertiary center with specific oncological pediatric surgery unit. METHODS: Retrospective review of patients undergoing MIS techniques in pediatric oncology surgery unit between January 2011 and December 2014. MIS procedures were considered made by both techniques such as laparoscopy and thoracoscopy with both diagnostic and therapeutic intent. RESULTS: 4 procedures were diagnostic and the rest were therapeutic: During the study, 56 procedures were performed by MIS...
July 20, 2015: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
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