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https://www.readbyqxmd.com/read/27926972/management-of-endometriosis-in-the-infertile-patient
#1
Edgardo Somigliana, Paola Vigano, Laura Benaglia, Andrea Busnelli, Nicola Berlanda, Paolo Vercellini
The management of endometriosis-related infertility remains debated. However, in recent years, the role of in vitro fertilization (IVF) has progressively grown. Reasons to explain this change include (1) the improvement of the effectiveness and safety of IVF, (2) the raised awareness of the modest effectiveness of surgery, (3) the inherent risks of surgery including in particular the damage to the ovarian reserve when ovarian endometriomas have to be removed, (4) the ineffectiveness of intrauterine insemination and the possible risks of endometriosis progression associated with the use of this technique...
December 7, 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27926971/management-of-endometriomas
#2
Ludovico Muzii, Chiara Di Tucci, Mara Di Feliciantonio, Giulia Galati, Ludovica Verrelli, Violante Di Donato, Claudia Marchetti, Pierluigi Benedetti Panici
Ovarian endometriomas affect 17 to 44% of women with endometriosis, and are often associated with pelvic pain and infertility. Treatment options include expectant management, medical and/or surgical treatment, and in vitro fertilization and embryo transfer (IVF-ET). The choice of treatment depends mostly on the associated symptoms. In most cases, surgery is the preferred choice, since endometriomas do not respond to medical treatment, which may only treat associated pain. In case of infertility, IVF-ET may be a suitable alternative to surgery, particularly when there is no associated pain...
December 7, 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27926879/in%C3%A2-vitro-derivation-and-propagation-of-spermatogonial-stem-cell-activity-from-mouse-pluripotent-stem-cells
#3
Yukiko Ishikura, Yukihiro Yabuta, Hiroshi Ohta, Katsuhiko Hayashi, Tomonori Nakamura, Ikuhiro Okamoto, Takuya Yamamoto, Kazuki Kurimoto, Kenjiro Shirane, Hiroyuki Sasaki, Mitinori Saitou
The in vitro derivation and propagation of spermatogonial stem cells (SSCs) from pluripotent stem cells (PSCs) is a key goal in reproductive science. We show here that when aggregated with embryonic testicular somatic cells (reconstituted testes), primordial germ cell-like cells (PGCLCs) induced from mouse embryonic stem cells differentiate into spermatogonia-like cells in vitro and are expandable as cells that resemble germline stem cells (GSCs), a primary cell line with SSC activity. Remarkably, GSC-like cells (GSCLCs), but not PGCLCs, colonize adult testes and, albeit less effectively than GSCs, contribute to spermatogenesis and fertile offspring...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27925340/evaluation-of-epididymis-storage-temperature-and-cryopreservation-conditions-for-improved-mitochondrial-membrane-potential-membrane-integrity-sperm-motility-and-in-vitro-fertilization-in-bovine-epididymal-sperm
#4
M Nichi, T Rijsselaere, Jda Losano, Dsr Angrimani, Gkv Kawai, Igf Goovaerts, A Van Soom, V H Barnabe, Jbp De Clercq, Pej Bols
The maintaining of the epididymis at lower temperatures during storage and transport improves sperm quality. Our study aimed to test whether epididymis storage temperature (post-mortem) and sperm cryopreservation affect sperm kinetics, membrane integrity, mitochondrial potential and fertility capacity. Thirty-six epididymides were collected from 18 bulls after slaughter and divided into two groups: at 4 or 34°C for 2-3 hr. The sperm was collected from the epididymis cauda. The evaluation consisted of computer-assisted sperm analysis (CASA), SYBR14/PI/JC1 to evaluate membrane integrity, mitochondrial membrane potential (MMP) and measurement of lipid peroxidation (TBARS)...
December 7, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27925009/characteristics-and-fertility-of-sumatran-tiger-spermatozoa-cryopreserved-with-different-sugars
#5
Ni Wayan Kurniani Karja, Mokhamad Fahrudin, Mohamad Agus Setiadi, Ligaya Ita Tumbelaka, Retno Sudarwati, Yohana Tri Hastuti, Bongot Huas Mulia, Ardyta Widianti, Keni Sultan, Tsukasa Terazono, Zhao Namula, Masayasu Taniguchi, Fuminori Tanihara, Tatsuya Takemoto, Kazuhiro Kikuchi, Yoko Sato, Takeshige Otoi
BACKGROUND: Cryopreservation of semen is one of the most important methods for the preservation of endangered tigers. OBJECTIVE: This study evaluated the effects of sugar supplementation on the cryosurvival of spermatozoa from Sumatran tigers (Panthera tigris sumatrae). MATERIALS AND METHODS: The post-thaw characteristics and fertility of spermatozoa cryopreserved with different sugars (glucose, lactose, and trehalose) were evaluated using heterologous in-vitro fertilisation with cat oocytes...
July 2016: Cryo Letters
https://www.readbyqxmd.com/read/27925004/appropriate-osmotic-balance-duration-for-different-volumes-of-ovarian-tissue-in-vitrification-solution-a-study-of-ovary-tissue-vitrification-and-transplantation-in-sheep
#6
L Dang, X Zheng, Q Chang, Y Yang, Y Wang, Y Cai, C Hei, H Wang, C Zhao, W Zhu, Y Wang
:   BACKGROUND: Auto-transplantation of cryopreserved ovarian tissue has become a promising method for fertility preservation and standardization of the process is crucial for practical applications. OBJECTIVE: Here we used different size of large sheep ovarian cortex to study the most suitable osmotic balance durations in the vitrification solution for large piece ovary cortex. MATERIALS AND METHODS: The ovarian cortices from six-month old female sheep were divided into 40 cubic mm, 80 cubic mm and 160 cubic mm volume, A two-step osmotic balance method was used based on the results from morphological and histological study, we detected the expression of VEGF after thawing, the percentage of follicles that survived and serum E2 levels,together with apoptosis test by TUNEL...
September 2016: Cryo Letters
https://www.readbyqxmd.com/read/27924460/proteomic-profile-of-maternal-aged-blastocoel-fluid-suggests-a-novel-role-for-ubiquitin-system-in-blastocyst-quality
#7
Gabriella Tedeschi, Elena Albani, Elena Monica Borroni, Valentina Parini, Anna Maria Brucculeri, Elisa Maffioli, Armando Negri, Simona Nonnis, Mauro Maccarrone, Paolo Emanuele Levi-Setti
PURPOSE: The etiology of maternal aging, a common cause of female factor infertility and a rate-limiting step in vitro fertilization (IVF) success, remains still unclear. Proteomic changes responsible for the impaired successful pregnancy outcome after IVF with aged blastocysts have not been yet evaluated. The objective of this prospective study was to employ proteomic techniques and bioinformatic tools to enlight differences at the protein level in blastocoel fluid of aged and younger woman...
December 6, 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27923859/non-growing-follicle-density-is-increased-following-adriamycin-bleomycin-vinblastine-and-dacarbazine-abvd-chemotherapy-in-the-adult-human-ovary
#8
M McLaughlin, T W Kelsey, W H B Wallace, R A Anderson, E E Telfer
STUDY QUESTION: Do the chemotherapeutic regimens of ABVD (adriamycin, bleomycin, vinblastine and dacarbazine) or OEPA-COPDAC (combined vincristine, etoposide, prednisone, doxorubicin (OEPA) and cyclophosphamide, vincristine, prednisone, dacarbazine (COPDAC)) used to treat Hodgkin lymphoma (HL), affect the density, morphology and in vitro developmental potential of human ovarian follicles? SUMMARY ANSWER: Ovarian tissue from women treated with ABVD contained a higher density of non-growing follicles (NGFs) per cubic millimetre and increased numbers of multiovular follicles but showed reduced in vitro growth compared with patients with lymphoma who had not received chemotherapy, patients treated with OEPA-COPDAC, age-matched healthy women and age-related model-predicted values...
December 5, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27923420/a-preliminary-study-of-the-effects-of-organic-farming-on-oocyte-quality-in-ewe-lambs
#9
A Casao, G A María, J A Abecia
This study tested whether feeding Rasa Aragonesa ewes certified organic feed, from 15 days before mating until lamb weaning, improved oocyte quality and in vitro maturation (IVM) and fertilization (IVF) performances of the offspring. In a second experiment, ovaries from ewe lambs that were bred on an organic farm and were of the same breed were compared with those from conventionally bred animals. The number (± standard error of the mean) of healthy oocytes per ewe lamb did not differ significantly between organic (12...
December 7, 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27923416/charles-georges-thibault-1919-2003-inspirational-leader-in-french-reproductive-biology
#10
R H F Hunter
The contribution of Charles Thibault in creating and developing a major international centre of animal research at Jouy-en-Josas (near Versailles) in post Second World War France is recorded in detail. Not only did he select a team of gifted young chercheurs, but he stimulated and supported their research in diverse ways. The projects covered were not only primarily of significance to animal reproduction, but they also became relevant to human infertility studies and to IVF treatments. Members of the team in Physiologie Animale gained international research reputations and seasoned overseas researchers were attracted to Jouy-en-Josas for their sabbaticals...
December 7, 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27923412/effects-of-vitrification-on-blastomere-viability-and-cytoskeletal-integrity-in-mouse-embryos
#11
Zenon Oikonomou, Katerina Chatzimeletiou, Antonia Sioga, Louisa Oikonomou, Basil C Tarlatzis, Efstratios Kolibianakis
Vitrification is widely used to cryopreserve supernumerary embryos following in vitro fertilization (IVF). The mouse model was used to investigate the effects of vitrification on blastomere viability, using viability markers, and on the cytoskeleton, by analysing spindle/chromosome configurations, using confocal scanning microscopy. Ninety cleavage and morula stage dimethyl sulphoxide (DMSO)/EG vitrified mouse embryos were either processed immediately following warming for viability assessment by labelling with the fluorescent markers carboxyfluorescein-diacetate succinimidylester (CFSE) and propidium iodide (PI) or were cultured to the blastocyst stage and immunostained with α-tubulin antibody to visualize microtubules and DAPI or PI to visualize DNA...
December 7, 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27921379/fibroids-that-do-not-distort-the-uterine-cavity-and-ivf-success-rates-an-observational-study-using-extensive-matching-criteria
#12
G Christopoulos, A Vlismas, R Salim, R Islam, G Trew, S Lavery
OBJECTIVE: To assess the impact of non-cavity-distorting fibroids on in vitro fertilisation (IVF) pregnancy outcomes. DESIGN: A retrospective, matched, single-centre, cohort study was performed. SETTING: The IVF unit of a tertiary, university hospital. POPULATION: We analysed all women with non-cavity-distorting uterine fibroids undergoing IVF/intracytoplasmic sperm injection (ICSI) cycles from 1 January 2011 to 1 May 2015...
December 5, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/27921090/the-effect-of-intrauterine-human-chorionic-gonadotropin-injection-before-embryo-transfer-on-the-implantation-and-pregnancy-rate-in-infertile-patients-a-randomized-clinical-trial
#13
Razieh Dehghani Firouzabadi, Sima Janati, Mohammad Hossein Razi
BACKGROUND: Implantation is one of the essential steps for the success of assisted reproductive techniques (ART). Their success depends on three main factors: embryo quality, endometrial receptivity (ER), and synchrony between embryo and endometrium. There are various factors that regulate the complex process of implantation. In this regard, one may refer to human chorionic gonadotropin (hCG) as the most important factor. OBJECTIVE: This study aims to investigate the effect of intrauterine hCG injection before embryo transfer (ET) on pregnancy outcome in infertile couples...
October 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/27920999/frequency-of-y-chromosome-microdeletions-among-iranian-infertile-men-with-azoospermia-and-severe-oligozoospermia-a-meta-analysis
#14
Ehsan Yousefi-Razin, Mohammad Javad Nasiri, Mir Davood Omrani
BACKGROUND: While multiple factors can contribute to male infertility, genetic factors, such as chromosomal disorders or Y-chromosome microdeletion, are responsible for about 10% of male infertility. Considering the role of Y-chromosome micro-deletions in men with oligozoospermia who volunteer for in vitro fertilization (IVF), the prevalence of such microdeletions in each particular community needs to be exactly determined. Hence, the present study attempted to analyze the available literature on the frequency of chromosome microdeletion among Iranian infertile men...
October 2016: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/27919288/variation-in-male-spermiation-response-to-exogenous-hormones-among-divergent-populations-of-red-eyed-treefrogs
#15
Leah E Jacobs, Jeanne M Robertson, Kristine Kaiser
BACKGROUND: The non-lethal collection of sperm from live males is an important component for multiple captive-breeding techniques, including assisted reproductive technology (ART) protocols, sperm cryopreservation and in vitro fertilization. However, in amphibians, the type and amount of hormone necessary to induce spermiation can be highly variable, even among closely related species. We are unaware of any studies that have examined the spermiation response to exogenous hormones across highly differentiated populations within a species...
December 5, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27919171/cpg-methylation-participates-in-regulation-of-hepatitis-b-virus-gene-expression-in-host-sperm-and-sperm-derived-embryos
#16
ChengYao Zhong, Hui Lu, TingTing Han, XiaoFang Tan, PengHao Li, JiHua Huang, QingDong Xie, ZhiWei Hou, Ting Qu, Yang Jiang, Sheng Wang, Lan Xu, Ying Zhong, TianHua Huang
AIM: This study was undertaken to investigate relationship between hepatitis B virus (HBV) CpG methylation and HBV gene transcription in sperm and sperm-derived embryos. METHODS: HBV-infected patient sperm and HBV plasmid-transfected donor sperm were subjected to interspecific in vitro fertilization, methylation-specific PCR, bisulfite sequencing PCR, reverse transcription PCR and real-time quantitative PCR. RESULTS: Positive methylation bands for CpG islands II and III in the HBV genome were observed in patient sperm but not in controls, and methylation percentages of CpG sites varied among different patient sperm samples...
December 6, 2016: Epigenomics
https://www.readbyqxmd.com/read/27918161/-current-options-of-preimplantion-genetic-screening-and-preimplantation-genetic-diagnostics
#17
V Šimečková
OBJECTIVE: The aim of this work is to summarize the current knowledge about preimplantation genetic screening and diagnostics. DESIGN: A review article. SETTING: Department of Gynecology and Obstetrics, District Hospital Šternberk, IVF Clinic, Olomouc. RESULTS: Preimplantation genetic testing is a complex of genetic and molecular cytogenetic examinations, which can help to detect abnormalities in embryos before transfer into the uterus of the mother...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27916276/a-surveillance-mechanism-ensures-repair-of-dna-lesions-during-zygotic-reprogramming
#18
Sabrina Ladstätter, Kikuë Tachibana-Konwalski
Sexual reproduction culminates in a totipotent zygote with the potential to produce a whole organism. Sperm chromatin reorganization and epigenetic reprogramming that alter DNA and histone modifications generate a totipotent embryo. Active DNA demethylation of the paternal genome has been proposed to involve base excision and DNA repair-based mechanisms. The nature and consequence of DNA lesions generated during reprogramming are not known. Using mouse genetics and chemical biology, we discovered that Tet3-dependent zygotic reprogramming generates paternal DNA lesions that are monitored by a surveillance mechanism...
November 21, 2016: Cell
https://www.readbyqxmd.com/read/27916206/how-many-oocytes-are-optimal-to%C3%A2-achieve-multiple-live-births-with%C3%A2-one-stimulation-cycle-the%C3%A2-one%C3%A2-and-done-approach
#19
Denis A Vaughan, Angela Leung, Nina Resetkova, Robin Ruthazer, Alan S Penzias, Denny Sakkas, Michael M Alper
OBJECTIVE: To study how many infertility patients would complete an average-sized family (achieve ≥2 live births) after a single, complete in vitro fertilization (IVF) cycle. DESIGN: A retrospective cohort study. SETTING: University-affiliated private infertility practice. PATIENT(S): Women undergoing IVF. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): The outcome of 1 or ≥2 live births after a single retrieval cycle, followed by use of all embryos in subsequent frozen cycles in relation to oocyte number...
December 1, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27916070/-effect-of-luteal-phase-gonadotropin-releasing-hormone-agonist-administration-on-pregnancy-outcome-in-ivf-icsi-cycles-a-systematic-review-and-meta-analysis
#20
L P Yu, N Liu, Y Liu
Objective: To evaluate the potential efficacy and safety of gonadotropin-releasing hormone agonist(GnRH-a) administration in the luteal-phase on in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles in assisted reproductive technology (ART). Methods: The relevant papers published before November 2015 were electronically searched in PubMed, EMBASE, Cochrane Library, WHO ICTRP, ClinicalTrials.gov, CNKI, CBM and WanFang database to collect randomized controlled trial (RCT) involving GnRH-a administration in the luteal-phase on IVF/ICSI cycles in ART...
November 25, 2016: Zhonghua Fu Chan Ke za Zhi
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