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https://www.readbyqxmd.com/read/27908215/in-vitro-effect-of-myo-inositol-on-sperm-motility-in-normal-and-oligoasthenospermia-patients-undergoing-in-vitro-fertilization
#1
P G Artini, E Casarosa, E Carletti, P Monteleone, A Di Noia, O M Di Berardino
It is a known fact that abnormal seminal liquid specimens contain abnormal amounts of oxygen free radicals and reactive oxygen species (ROS), and that the use of antioxidant molecules both in vivo and in vitro leads to improvement of semen quality in terms of motility, reduction in DNA damage, with obvious consequences on the fertilization potential. Myo-inositol has been observed to have anti-oxidant properties and be present in much greater concentrations specifically in seminal liquid than in the blood. Moreover, there seems to be a direct relationship between myo-inositol and mitochondrial membrane potential (MMP) and sperm motility...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27903074/bicornuate-uterus-is-an-independent-risk-factor-for-cervical-os-insufficiency-a-retrospective-population-based-cohort-study
#2
Salvatore Andrea Mastrolia, Yael Baumfeld, Reli Hershkovitz, Giuseppe Loverro, Edoardo Di Naro, David Yohai, Polina Schwarzman, Adi Yehuda Weintraub
INTRODUCTION: The purpose of our study was to explore maternal and fetal outcomes in the second and third trimester in women with bicornuate uterus. METHODS: A total of 280,106 pregnancies met the inclusion criteria and were divided in two study groups: (1) pregnancies in women with bicornuate uterus (n = 444); and (2) controls (n = 279,662). The diagnosis of bicornuate uterus was performed in all patients during the workup for infertility or recurrent pregnancy loss, during pregnancy, or at the time of cesarean delivery...
December 1, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27894704/antenatal-fetal-surveillance-in-multiple-pregnancies
#3
REVIEW
Dick Oepkes, Marieke Sueters
Multiple pregnancies occur either spontaneously or because of assisted reproduction techniques in 1-3% of pregnancies. The presence of more than one fetus in the womb is associated with a range of possible complications, both for the mother and fetuses. Early detection of these complications followed by timely and appropriate management will reduce the risk of adverse outcomes. The techniques, skills, and experience for timely detection of complications and managing them appropriately require sufficient training and exposure...
September 29, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27887992/does-elevated-progesterone-on-day-of-oocyte-maturation-play-a-role-in-the-racial-disparities-in-ivf-outcomes
#4
Micah J Hill, G Donald Royster, Mansi Taneja, Mae Wu Healy, Shvetha M Zarek, Alicia Y Christy, Alan H DeCherney, Eric Widra, Kate Devine
The aim of this study was to evaluate if premature progesterone elevation on the last day of assisted reproduction technique stimulation contributes to racial disparities. A total of 3289 assisted reproduction technique cycles were evaluated in Latino, Asian, African American, and white women. Live birth was more likely in white women (42.6%) compared with Asian (34.8%) and African American women (36.3%), but was similar to Latino women (40.7%). In all racial groups, progesterone was negatively associated with live birth and the negative effect of progesterone persisted when adjusting for confounders...
November 16, 2016: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/27885726/cryopreservation-of-feline-oocytes-by-vitrification-using-commercial-kits-and-slush-nitrogen-technique
#5
L Fernandez-Gonzalez, K Jewgenow
Assisted reproductive techniques are a valuable tool for conservation breeding of endangered species. Cryopreservation methods are the basis of gamete banks, supporting genetic diversity preservation. Unfortunately, cryopreservation of feline oocytes is still considered an experimental technique. The aim of this study was to compare two commercial kits, with our protocol for vitrification of cat oocytes (IZW), which comprises a three-step method with ethylene glycol, DMSO, fetal calf serum, trehalose and Ficoll PM-70...
November 24, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27881336/-outcome-analysis-of-monozygotic-twin-pregnancy-conceived-by-assisted-reproductive-techniques
#6
Shu-Xian Feng, Xue-Lan Li, Xing-Yu Zhou, Yu-Dong Liu, Ping-Ping Guo, De-Sheng Ye, Xin Chen, Shi-Ling Chen
OBJECTIVE: To analyze the incidence, management, and outcomes of monozygotic twin (MZT) pregnancy conceived by assisted reproductive techniques (ART). METHODS: A retrospective analysis was performed of clinical pregnancies after in vitro fertilization and embryo transfer (IVF-ET) and introcytoplasmic sperm injection and embryo transfer (ICSI-ET) from January, 2010 to June 2015 at our center. We investigated the incidence, managements and outcomes of 94 MZT pregnancies...
November 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27866059/glucocorticoid-metabolism-in-equine-follicles-and-oocytes
#7
D Scarlet, N Ille, R Ertl, B G Alves, G D A Gastal, S O Paiva, M O Gastal, E L Gastal, C Aurich
The objective of this study was to determine whether (1) systemic and intrafollicular cortisol concentrations in horses are directly related and (2) supraphysiological levels of glucocorticoids affect in vitro maturation (IVM) rates of oocytes. Specifically, we studied the (1) changes in the intrafollicular cortisol and progesterone in context with granulosa cell gene expression during maturation of equine follicles (from 5-9 mm, 10-14 mm, 15-19 mm, 20-24 mm, and ≥25 mm in diameter) and (2) effects of cortisol supplementation on IVM rates and gene expression of equine cumulus-oocyte complexes (COCs)...
October 29, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27859772/survival-rate-after-vitrification-of-various-stages-of-cat-embryos-and-blastocyst-with-and-without-artificially-collapsed-blastocoel-cavity
#8
M Ochota, B Wojtasik, W Niżański
Embryo vitrification is a modern technique for cryopreservation in assisted reproductive programs. From all the embryos, blastocysts are the most challenging during cryostorage due to their size, multicellular structure and the presence of blastocoelic fluid. The aim of this study was to evaluate the suitability for vitrification of various developmental stages of feline embryos and the influence of the artificial shrinkage (AS) of expanded blastocyst on post-vitrification survival rates. The AS procedure is the manual puncture of the trophectoderm allowing for the reduction of blastocoelic fluid prior to vitrification and thus preventing the ice crystal formation...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27856185/utilization-of-third-party-in%C3%A2-vitro-fertilization-in-the-united%C3%A2-states
#9
Vitaly A Kushnir, Sarah K Darmon, Alice J Shapiro, David F Albertini, David H Barad, Norbert Gleicher
BACKGROUND: The use of in vitro fertilization that includes third-party in vitro fertilization is increasing. However, the relative contribution of third-party in vitro fertilization that includes the use of donor oocytes, sperm, or embryo and a gestational carrier to the birth cohort after in vitro fertilization is unknown. OBJECTIVE: The purpose of this study was to examine the contribution of third-party in vitro fertilization to the in vitro fertilization birth cohort over the past decade...
November 14, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27856173/fertility-in-disorders-of-sex-development-a-review
#10
REVIEW
J P Van Batavia, T F Kolon
INTRODUCTION: Disorders of sex development (DSD) are a heterogeneous group of complex conditions that can affect chromosomal, gonadal, and/or phenotypical sex. In addition to impacts on internal and external genitalia,these conditions can affect fertility potentialto various degrees. In this review we discuss fertility issues including gonadalpreservation and reproductive outcomes based on specific DSD conditions. METHODS AND MATERIALS: A systematic literature review was performed on Embase(™), PubMed(®), and Google Scholar(™) for disordersof sex development and infertility...
November 3, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27854386/high-miscarriage-rate-in-women-treated-with-essure%C3%A2-for-hydrosalpinx-before-embryo-transfer-a-systematic-review-and-meta-analysis
#11
REVIEW
M W Barbosa, A Sotiriadis, S I Papatheodorou, V Mijatovic, C O Nastri, W P Martins
OBJECTIVES: Essure® has been tested as an alternative treatment for hydrosalpinx before embryo transfer (ET) in women undergoing assisted reproduction techniques. However, the persistence of a foreign body inside the uterine cavity might have a negative impact on the outcome of pregnancy. The present systematic review aimed at identifying, appraising and summarizing the available evidence regarding the effectiveness and safety of using Essure prior to ET for women with hydrosalpinx. METHODS: We searched for studies in PubMed, Scopus, CENTRAL, Web of Science and ClinicalTrials...
November 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27852683/potential-of-human-twin-embryos-generated-by-embryo-splitting-in-assisted-reproduction-and-research
#12
REVIEW
Laila Noli, Caroline Ogilvie, Yacoub Khalaf, Dusko Ilic
BACKGROUND: Embryo splitting or twinning has been widely used in veterinary medicine over 20 years to generate monozygotic twins with desirable genetic characteristics. The first human embryo splitting, reported in 1993, triggered fierce ethical debate on human embryo cloning. Since Dolly the sheep was born in 1997, the international community has acknowledged the complexity of the moral arguments related to this research and has expressed concerns about the potential for reproductive cloning in humans...
November 16, 2016: Human Reproduction Update
https://www.readbyqxmd.com/read/27852097/subclinical-hypothyroidism-and-intracytoplasmic-sperm-injection-outcomes
#13
Marcela de Alencar Coelho Neto, Wellington de Paula Martins, Anderson Sanches de Melo, Rui Alberto Ferriani, Paula Andrea Navarro
Purpose Whether preconception elevated concentrations of thyroid-stimulating hormone (TSH) compromises reproductive outcomes in patients undergoing assisted reproduction techniques (ARTs) remains unclear. This study therefore compared the reproductive outcomes in patients with TSH concentrations of < 2.5 mIU/L, 2.5-4.0 mIU/L, and 4.0-10.0 mIU/L undergoing controlled ovarian stimulation (COS) for in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). Methods This retrospective cohort study evaluated the medical records of all women with measured TSH concentrations who underwent IVF/ICSI between January 2011 and December 2012...
November 16, 2016: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/27842977/reprint-of-steroid-5%C3%AE-reductase-2-deficiency
#14
REVIEW
Berenice B Mendonca, Rafael Loch Batista, Sorahia Domenice, Elaine M F Costa, Ivo J P Arnhold, David W Russell, Jean D Wilson
Dihydrotestosterone is a potent androgen metabolite formed from testosterone by action of 5α-reductase isoenzymes. Mutations in the type 2 isoenzyme cause a disorder of 46,XY sex development, termed 5α-reductase type 2 deficiency and that was described forty years ago. Many mutations in the encoding gene have been reported in different ethnic groups. In affected 46,XY individuals, female external genitalia are common, but Mullerian ducts regress, and the internal urogenital tract is male. Most affected males are raised as females, but virilization occurs at puberty, and male social sex develops thereafter with high frequency...
November 11, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27832922/current-regulatory-arrangements-for-assisted-conception-treatment-in-european-countries
#15
REVIEW
Luca Gianaroli, Anna Pia Ferraretti, Maria Cristina Magli, Serena Sgargi
Infertility is a condition affecting an increasing number of individuals all over the world. In recent years, this phenomenon has spread across both western countries and developing countries, thus developing the features of a pandemic. For this reason, the World Health Organization (WHO) acknowledged that infertility should be considered a disease to all intents and purposes, as it diminishes the health and wellbeing of the individuals who suffers from it. At present, the most effective means to contain the spread of infertility are essentially prevention and Assisted Reproductive Technologies (ART)...
October 20, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27825031/systematic-review-and-meta-analysis-on-the-association-of-prepregnancy-underweight-and-miscarriage
#16
REVIEW
Montserrat Balsells, Apolonia García-Patterson, Rosa Corcoy
BACKGROUND: Maternal underweight, overweight and obesity have been associated with a higher risk of miscarriage. Most individual reports and all meta-analyses have addressed high body mass index. OBJECTIVES: To review the literature and summarize the risk of miscarriage in underweight women vs those with normal weight. METHODS: A Medline Search (1st January 1990-20th November 2015, human, in English, French, Italian, Spanish or Portuguese) was conducted...
October 26, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27824942/identifying-maternal-constraints-on-fetal-growth-and-subsequent-perinatal-outcomes-using-a-multiple-embryo-implantation-model
#17
Nigel Pereira, Tyler Cozzubbo, Stephanie Cheung, Zev Rosenwaks, Gianpiero D Palermo, Queenie V Neri
INTRODUCTION: Although the majority of singleton births after in vitro fertilization (IVF) are uncomplicated, studies have suggested that IVF pregnancies may be independently associated with low birth weight (LBW), preterm birth (PTB), and perinatal mortality. These outcomes complicate multiple gestations as expected, but have also been reported in singletons. A multiple embryo implantation model allows for assessment of the early in utero environment, and therefore, assessment of any maternal constraints on developing fetuses...
2016: PloS One
https://www.readbyqxmd.com/read/27817038/dna-methyltransferase-3a-promoter-polymorphism-is-associated-with-the-risk-of-human-spontaneous-abortion-after-assisted-reproduction-techniques-and-natural-conception
#18
Yudong Liu, Haiyan Zheng, Pingping Guo, Shuxian Feng, Xingyu Zhou, Desheng Ye, Xin Chen, Shiling Chen
PURPOSE: The aim of this study was to explore the association of the DNA-methyltransferase (DNMT)-3A and DNMT3B promoter polymorphisms with the risk of human spontaneous abortion after assisted reproduction techniques (ARTs) and natural conception. METHODS: We collected tissues from women who underwent abortion procedures: (a) chorionic villus samples (CVS) and muscle samples (MS) from spontaneous abortions conceived by ART and natural cycle (study group), n = 152; and (b) CVS and MS from normal early pregnancy and second trimester (control group), n = 155...
November 5, 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27810281/adenomyosis-and-abnormal-uterine-bleeding-aub-a-pathogenesis-diagnosis-and-management
#19
REVIEW
Jason A Abbott
The complex pathogenesis and variable presentation of adenomyosis make it one of the most difficult of the FIGO PALM-COIEN abnormal uterine bleeding group to diagnose and treat. Basic clinical parameters such as prevalence are difficult to accurately assess because histological confirmation is usually employed; however, because of the access to and accuracy and utilization of transvaginal ultrasound and other advanced imaging techniques such as MRI, noninvasive diagnosis is recognized to be highly accurate...
September 30, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27805545/effect-of-sperm-preparation-on-development-of-bovine-blastocyst-in-vitro
#20
Maria Celina Abraham, Anders Johannisson, Jane M Morrell
Sperm preparation is an important step in the in vitro production of embryos. Centrifugation through colloids has been used to select normal sperm for assisted reproduction in several species. Animal models can sometimes be used as a preliminary step to investigate sperm preparation methods that are potentially of use for human fertility treatments. In this study bovine semen was prepared using three variants of the single-layer centrifugation sperm selection technique (Small, Mini, Mini-EP) with Bovicoll (Androcoll-B)...
December 2016: Zygote: the Biology of Gametes and Early Embryos
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