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Assisted reproduction

Maria Portia B Nagata, Kenji Endo, Kazuko Ogata, Kenichi Yamanaka, Junki Egashira, Naoto Katafuchi, Tadayuki Yamanouchi, Hideo Matsuda, Yuki Goto, Miki Sakatani, Takuo Hojo, Hirofumi Nishizono, Kenji Yotsushima, Naoki Takenouchi, Yutaka Hashiyada, Kenichi Yamashita
Selection of functional spermatozoa plays a crucial role in assisted reproduction. Passage of spermatozoa through the female reproductive tract requires progressive motility to locate the oocyte. This preferential ability to reach the fertilization site confers fertility advantage to spermatozoa. Current routine sperm selection techniques are inadequate and fail to provide conclusive evidence on the sperm characteristics that may affect fertilization. We therefore developed a selection strategy for functional and progressively motile bovine spermatozoa with high DNA integrity based on the ability to cross laminar flow streamlines in a diffuser-type microfluidic sperm sorter (DMSS)...
March 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
Juliana Miron Vani, Maria Tereza Ferreira Duenhas Monreal, Sarah Alves Auharek, Andréa Luiza Cunha-Laura, Eduardo José de Arruda, Alessandra Ramos Lima, Cicera Maria da Silva, Andréia Conceição Milan Brochado Antoniolli-Silva, Dênis Pires de Lima, Adilson Beatriz, Rodrigo Juliano Oliveira
Dengue fever, chikungunya fever and Zika virus are epidemics in Brazil that are transmitted by mosquitoes, such as Aedes aegypti or Aedes albopictus. The liquid from shells of cashew nuts is attractive for its important biological and therapeutic activities, which include toxicity to mosquitoes of the genus Aedes. The present study evaluated the effects of a mixture of surfactants from natural cashew nutshell liquid and castor oil (named TaLCC-20) on the mortality of larvae and on the reproductive performance, embryonic and fetal development and genetic stability of Swiss mice...
2018: PloS One
Mark W H Hiew, Aubrey N Baird, Peter D Constable
OBJECTIVE To characterize signalment, clinical signs, reproductive history, surgical management, and outcomes of beef cattle undergoing cesarean section because of dystocia at a veterinary teaching hospital. DESIGN Retrospective case series with nested cohort study. ANIMALS 173 beef cattle admitted to a veterinary teaching hospital from 2001 through 2010 that underwent cesarean section because of dystocia. PROCEDURES Medical records were reviewed and information collected on cattle signalment; reproductive history; cause of dystocia; anesthetic protocol; surgical management; number, sex, and body weight of calves delivered (alive or dead); perioperative treatment; duration of hospitalization; and discharge status...
April 1, 2018: Journal of the American Veterinary Medical Association
Joan Torres Puig-Gros, Rosa Mar Alzuria Alós
OBJECTIVE: Sometimes and when a registry is not available, influenza vaccination (IV) is based on vaccination records reported by citizens. When the opportunity of comparing both information sources exists, sometimes, discrepancies between both have been observed. The objectives of this study are: to know the IV coverage in pregnant women (both referred and recorded in the clinical history), to determine the concordance between both sources of information and to quantify the lost opportunities of IV due to errors in verbalization...
March 16, 2018: Revista Española de Salud Pública
Olinda Timms
The introduction of the Surrogacy (Regulation) Bill, 2016 into Parliament, in August 2016, was a much-awaited response to citizen voices and human rights groups calling for action in the unregulated area of commercial surrogacy arrangements. Both houses of Parliament have reviewed the Bill, and its fate was to be decided in the Winter Session of Parliament, 2017. It is still unclear whether the Bill will come up for decision in the Budget Session that will reconvene on March 5, 2018. The market for infertility treatments has attracted to India global clients seeking access to surrogates and procedures at lower costs...
March 5, 2018: Indian Journal of Medical Ethics
Maria Pefkianaki, Adele Schneider, Jenina E Capasso, Barry Wasserman, Tanya Bardakjian, Alex V Levin
Heterozygous mutation in the PACS1 (phosphofurin acidic cluster sorting proteins 1) gene is a known cause of developmental delay, multiple congenital anomalies, dysmorphism, and ocular abnormalities. We present the case of an affected 10-year-old girl, conceived by assisted reproductive technology, who has ocular coloboma and findings characteristic of PACS1 mutation.
March 14, 2018: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Y S Tian, J J Zhang, Z T Li, J Tang, M L Cheng, Y P Wu, W H Ma, Z F Pang, W S Li, J M Zhai, B Li
Embryo cryopreservation is important for long-term preservation of germplasm and assisted reproduction. However, it is still very difficult to obtain viable embryos from cryopreserved fish embryos. In this study, embryos of Epinephelus moara were used to investigate the effects of various cryopreservation methods. Embryos in stages 10 pairs somite (10S), 18 pairs somite (18S), 22 pairs somite (22S), tail-bud (TB), embryo twitching (ET) and pre-hatch (PH) were treated with five-step equilibrium penetration in 40% PMG3T vitrification solution, which contained 15...
March 12, 2018: Theriogenology
Tim Child, Saoirse A Leonard, Jennifer S Evans, Amir Lass
Vaginal progesterone via capsule, gel or tablet is the most common route for luteal phase support (LPS) in Europe. Although there is a wealth of data comparing products used at other stages of assisted reproductive technology cycles, there is a lack of systematically identified evidence comparing the wide range of vaginal progesterone products. This systematic review queried the MEDLINE, Embase and Cochrane Library databases on 30 June 2016 to identify head-to-head randomized controlled trials (RCTs) comparing the efficacy or safety of vaginal progesterone preparations (Crinone, Cyclogest, Lutigest or Utrogestan Vaginal) for LPS in assisted reproductive technology cycles...
February 22, 2018: Reproductive Biomedicine Online
Ross E Anderson, Heidi A Hanson, Diana Thai, Chong Zhang, Angela P Presson, Kenneth I Aston, Douglas T Carrell, Ken R Smith, James M Hotaling
PURPOSE: To study the role of individual semen parameters on the offspring birth weight and body mass index (BMI) from a population of men evaluated in an assisted reproduction technology (ART) clinic compared to fertile controls. METHODS: We performed a retrospective study using a cohort with fertile, age-matched controls of men evaluated with semen analysis at the University of Utah Andrology Clinic from 1996 to 2011 and Intermountain Healthcare from 2002 to 2011...
March 17, 2018: Journal of Assisted Reproduction and Genetics
Richard Mollard
This study describes the culture, cryobanking, thawing and passaging of karyotypically validated cells from two life history stages of the "least concern" Australian native amphibian species Litoria infrafrenata. Adult frog toe and tadpole macerates were generated from animals euthanized due to ill health following injury. Cultured cells proliferated and formed colonies after one to two weeks of culture. Cultures were cryopreserved in liquid nitrogen for a minimum of one month, thawed, passaged for expansion and karyotyped...
March 13, 2018: Cryobiology
Charalampos S Siristatidis, Eleni Sertedaki, Dennis Vaidakis, Christos Varounis, Marialena Trivella
BACKGROUND: In order to overcome the low effectiveness of assisted reproductive technologies (ART) and the high incidence of multiple births, metabolomics is proposed as a non-invasive method to assess oocyte quality, embryo viability, and endometrial receptivity, and facilitate a targeted subfertility treatment. OBJECTIVES: To evaluate the effectiveness and safety of metabolomic assessment of oocyte quality, embryo viability, and endometrial receptivity for improving live birth or ongoing pregnancy rates in women undergoing ART, compared to conventional methods of assessment...
March 16, 2018: Cochrane Database of Systematic Reviews
Waqas Hameed, Bilal Iqbal Avan
INTRODUCTION: Respectful and dignified healthcare is a fundamental right for every woman. However, many women seeking childbirth services, especially those in low-income countries such as Pakistan, are mistreated by their birth attendants. The aim of this epidemiological study was to estimate the prevalence of mistreatment and types of mistreatment among women giving birth in facility- and home-based settings in Pakistan in order to address the lack of empirical evidence on this topic...
2018: PloS One
Kris Poppe, Candice Autin, Flora Veltri, Pierre Kleynen, Lidia Grabczan, Serge Rozenberg, Lieveke Ameye
Background: Since 2010, three meta-analyses have been published on the impact of thyroid autoimmunity (TAI) on pregnancy outcomes in infertile women treated with assisted reproductive technology (ART). The initially observed high risk of miscarriage became very low in the most recent meta-analysis published in 2016. Objective: To investigate whether the lower risk of miscarriage in the latest meta-analysis was associated with the increased use of intracytoplasmic sperm injection (ICSI) in recent studies...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Robert John Aitken
This article is a personal perspective on male infertility, a condition that is not only extremely prevalent but also a major reason for couples to resort to assisted reproductive technology. The introduction of intra-cytoplasmic sperm injection (ICSI) as a form of facilitated fertilization had a revolutionary impact on our capacity to treat cases of male infertility associated with severely-compromised semen quality. However, the widespread use of this technique is also thought to pose risks in terms of the incidence of miscarriage, the health and wellbeing of the offspring and perpetuation of the infertile phenotype into future generations...
March 13, 2018: Molecular Human Reproduction
Işıl Kasapoğlu, Pınar Türk, Aylin Dayan, Gürkan Uncu
OBJECTIVE: The aim of the study was to compare patients with endometriosis to those without endometriosis regarding performance rates, difficulties and complications associated with transvaginal oocyte retrieval (TVOR) procedures. MATERIAL AND METHODS: A prospective cohort study was conducted at the IVF Unit of the Division of Reproductive Endocrinology and Infertility Department of an University Hospital. Fifty-eight patients with endometriosis and 61 patients without endometriosis underwent a TVOR procedure consecutively...
March 16, 2018: Journal of the Turkish German Gynecological Association
E Mathieu d'Argent, J Cohen, C Chauffour, J L Pouly, J Boujenah, C Poncelet, C Decanter, P Santulli
Deeply infiltrating endometriosis is a severe form of the disease, defined by endometriotic tissue peritoneal infiltration. The disease may involve the rectovaginal septum, uterosacral ligaments, digestive tract or bladder. Deeply infiltrating endometriosis is responsible for disabling pain and infertility. The purpose of these recommendations is to answer the following question: in case of deeply infiltrating endometriosis associated infertility, what is the best therapeutic strategy? First-line surgery and then in vitro fertilization (IVF) in case of persistent infertility or first-line IVF, without surgery? After exhaustive literature analysis, we suggest the following recommendations: studies focusing on spontaneous fertility of infertile patients with deeply infiltrating endometriosis found spontaneous pregnancy rates about 10%...
March 12, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
Zeev Blumenfeld
The ovarian hyperstimulation syndrome (OHSS) is an iatrogenic syndrome, which may, infrequently, become severe and evenly fatal. Until the last decade, the worldwide popularity of assisted reproductive technology (ART) and ovulation induction/controlled ovarian hyperstimulation employed in ART for either in vivo fertilization or in vitro fertilization, in the last two decades, has been accompanied by an increase in the cases of OHSS. In the last decade, the substitution of the human chorionic gonadotropin trigger with the gonadotropin-releasing hormone agonist trigger has decreased the incidence of this syndrome but did not eliminate it completely...
2018: Vitamins and Hormones
Patrizia Limonta, Marina Montagnani Marelli, Roberta Moretti, Monica Marzagalli, Fabrizio Fontana, Roberto Maggi
Gonadotropin-releasing hormone (GnRH) is recognized as the central regulator of the functions of the pituitary-gonadal axis. The increasing knowledge on the mechanisms controlling the development and the function of GnRH-producing neurons is leading to a better diagnostic and therapeutic approach for hypogonadotropic hypogonadisms and for alterations of the puberty onset. During female life span, the function of the GnRH pulse generator may be affected by a number of inputs from other neuronal systems, offering alternative strategies for diagnostic and therapeutic interventions...
2018: Vitamins and Hormones
Nancy D Campbell
Using the ethical and legal concept of shared responsibility for healthy births, this article considers social, cultural, and historical contexts in which medicalization and criminalization have worked in tandem to widen surveillance in ways that intensify scrutiny of women's lives under the guise of child protection, bringing women who are pregnant, postpartum, or parenting under criminal justice control. Although pregnant and postpartum women are prime candidates for medication-assisted treatment (MAT), the expanding carceral system has not prioritized drug treatment or reproductive justice...
March 1, 2018: AMA Journal of Ethics
Marcia C Inhorn, Pasquale Patrizio
Reproductive health services, including infertility care, are important in countries with infrastructure deficits, such as Lebanon, which now hosts more than one million Syrian refugees. Islamic prohibitions on child adoption and third-party reproductive assistance (donor eggs, sperm, embryos, and surrogacy) mean that most Muslim couples must turn to in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) to overcome their childlessness. Attempts to bring low-cost IVF-ICSI to underserved populations might help infertile couples where no other services are available...
March 1, 2018: AMA Journal of Ethics
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