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https://www.readbyqxmd.com/read/28437434/comparisons-of-gnrh-antagonist-protocol-versus-gnrh-agonist-long-protocol-in-patients-with-normal-ovarian-reserve-a-systematic-review-and-meta-analysis
#1
Ruolin Wang, Shouren Lin, Yong Wang, Weiping Qian, Liang Zhou
OBJECTIVE: To evaluate the effectiveness and safety of gonadotropin-releasing hormone antagonist (GnRH-ant) protocol and gonadotropin-releasing hormone agonist (GnRH-a) long protocol in patients with normal ovarian reserve. METHODS: We searched the PubMed (1992-2016), Cochrane Library (1999-2016), Web of Science (1950-2016), Chinese Biomedical Database (CBM, 1979-2016), and China National Knowledge Infrastructure (CNKI, 1994-2016). Any randomized controlled trials (RCTs) that compared GnRH-ant protocol and GnRH-a long protocol in patients with normal ovarian reserve were included, and data were extracted independently by two reviewers...
2017: PloS One
https://www.readbyqxmd.com/read/28433373/preimplantation-genetic-diagnosis-for-aneuploidy-testing-in-women-older-than-44-years-a-multicenter-experience
#2
Filippo Maria Ubaldi, Danilo Cimadomo, Antonio Capalbo, Alberto Vaiarelli, Laura Buffo, Elisabetta Trabucco, Susanna Ferrero, Elena Albani, Laura Rienzi, Paolo E Levi Setti
OBJECTIVE: To report laboratory and clinical outcomes in preimplantation genetic diagnosis for aneuploidies (PGD-A) cycles for women 44 to 47 years old. DESIGN: Multicenter, longitudinal, observational study. SETTING: In vitro fertilization (IVF) centers. PATIENT(S): One hundred and thirty-seven women aged 44.7 ± 0.7 years (range: 44.0-46.7) undergoing 150 PGD-A cycles during April 2013 to January 2016. INTERVENTION(S): Quantitative polymerase chain reaction-based PGD-A on trophectoderm biopsies and cryopreserved euploid single-embryo transfer (SET)...
April 19, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28433372/intrinsic-fertility-of-human-oocytes
#3
Sherman J Silber, Keiichi Kato, Naoki Aoyama, Akiko Yabuuchi, Helen Skaletsky, Yuting Fan, Kazunori Shinohara, Noriyuki Yatabe, Tamotsu Kobayashi
OBJECTIVE: To study the intrinsic fertility of the human oocyte. DESIGN: A large retrospective study of natural cycle single embryo transfer (ET) IVF cycles. SETTING: Private IVF clinic, university, and private hospital. PATIENT(S): Patients were enrolled consecutively over an 8-year period in a single ET natural cycle protocol. INTERVENTION(S): A total of 13,949 oocyte retrievals with natural IVF single ET...
April 19, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28432708/in-vitro-production-of-porcine-zygotes-using-intracytoplasmic-injection-of-vitrified-sperm
#4
C C Arraztoa, C Baca Castex, G M Alvarez, P D Cetica, D M Neild
The objectives of this study were to evaluate if vitrified porcine spermatozoa are able to maintain their capacity to produce zygotes in vitro using intracytoplasmic sperm injection (ICSI) and to evaluate the zygote development in two in vitro atmospheric conditions: 5% CO2 and tri-gas. A group of porcine oocytes maturated in vitro were injected with vitrified-warmed sperm (treatment group) and another group, with sperm diluted and conserved at 17°C (control group). To evidence parthenogenetic activation, some oocytes were submitted to a Sham test...
April 21, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28432599/the-beneficial-effect-of-repaglinide-on-in-vitro-maturation-and-development-ability-of-immature-mouse-oocytes
#5
Eshrat Kalehoei, Mehri Azadbakht
Repaglinide is a hypoglycemic drug, causing depolarization of the cell membrane, opening the voltage-gated calcium channels, and then increasing intracellular calcium in the pancreatic B cells by inhibition of the K-ATP-sensitive channels. Oocyte in vitro maturation (IVM) is influenced by different factors such as calcium signaling. In this study, we examined the effects of repaglinide on in vitro maturation and fertilization ability of mouse oocyte. Immature oocytes were isolated from female Naval Medical Research Institute mice which are 6-8 wk old mechanically and then cultured in 30 μl droplets of T6 medium with different concentrations of repaglinide...
April 21, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28432496/reproductive-effects-of-life-cycle-exposure-to-difenoconazole-on-female-marine-medaka-oryzias-melastigma
#6
Xiaocui Dong, Zhenghong Zuo, Jiaojiao Guo, Hongbin Li, Lemeng Zhang, Meng Chen, Zhibin Yang, Chonggang Wang
Difenoconazole (DFZ) is a widely used triazole fungicide which has been detected in some estuaries and embayments. This study was conducted to investigate the effects of DFZ on ovarian development in female marine medaka (Oryzias melastigma). After 180 days exposure of the embryo to DFZ (0, 1, 10, 100 and 1000 ng/L), the gonadosomatic index and percentage of mature oocytes produced were significantly reduced in the 1, 10 and 100 ng/L treatments but not the 1000 ng/L treatment compared to the control, thus exhibiting a U-shaped dose response curve...
April 21, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28431017/long-non-coding-rna-exchange-during-the-oocyte-to-embryo-transition-in-mice
#7
Rosa Karlic, Sravya Ganesh, Vedran Franke, Eliska Svobodova, Jana Urbanova, Yutaka Suzuki, Fugaku Aoki, Kristian Vlahovicek, Petr Svoboda
No abstract text is available yet for this article.
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28430684/flurbiprofen-axetil-provides-effective-analgesia-without-changing-the-pregnancy-rate-in-ultrasound-guided-transvaginal-oocyte-retrieval-a-double-blind-randomized-controlled-trial
#8
Hong Zhao, Yi Feng, Yan Jiang, Qun Lu
BACKGROUND: In this prospective double-blind randomized study, we evaluated the analgesic effect and potential effect on pregnancy rate of the nonsteroidal anti-inflammatory drug flurbiprofen axetil in patients undergoing ultrasound-guided transvaginal oocyte retrieval under propofol-remifentanil anesthesia. METHODS: A total of 200 patients scheduled to undergo ultrasound-guided transvaginal oocyte retrieval were randomly allocated to receive 1.5 mg/kg of flurbiprofen axetil (FA group) or placebo (control group) 30 minutes before the procedure...
April 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28429340/controlled-prospective-observational-study-on-the-efficiency-and-tolerability-of-a-combination-of-potential-nrf2-inducing-antioxidants-and-micronutrients-as-pre-treatment-for-icsi-in-dyspermic-patients-with-previous-failure
#9
R Rago, M Gallo, A Dal Lago, E Licata, G Paciotti, M Amodei, C Meneghini, C Fabiani, G Dani, C Liberanome, D Antonaci, R Corno, D Miriello, G Giuffrida, B Giammusso
OBJECTIVE: To evaluate the efficiency of pre-treatment in dyspermic males in IVF couples with a combination of micronutrients, for the purpose of improving the fertilization rate, the implantation rate and the outcome of the pregnancy. PATIENTS AND METHODS: This controlled prospective clinical study was performed in two medically assisted reproduction centers. 59 males with mild oligo-astheno-teratospermia (OAT) were admitted to the study. All of them had a history of previous in vitro fertilization (IVF) attempts with female partners aged < 40 diagnosed having tubal or idiopathic infertility...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28429153/relative-abundance-of-heat-shock-proteins-and-clusterin-transcripts-in-spermatozoa-collected-form-boar-routinely-utilised-in-an-artificial-insemination-centre-preliminary-results
#10
A Zannoni, C Bernardini, A Zaniboni, E Ferlizza, D Ventrella, M L Bacci, M Forni
It is widely accepted that mature sperm contains RNA. The first hypothesis was that sperm RNAs have no functions of their own but are simply residues of spermatogenesis reflecting the events that occurred during their formation in the testes. More recently new discoveries have essentially expanded these views, showing that sperm mRNAs constitute a population of stable full-length transcripts, many of which are selectively retained during spermatogenesis and delivered to oocytes contributing to early embryo development...
April 21, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28428962/a-higher-ovarian-response-after-stimulation-for-ivf-is-related-to-a-higher-number-of-euploid-embryos
#11
Elena Labarta, Ernesto Bosch, Amparo Mercader, Pilar Alamá, Emilia Mateu, Antonio Pellicer
This study has analysed the relationship between ovarian response and the number of euploid embryos. This is a post hoc analysis of a subset of data generated during a prospective cohort study previously published. Forty-six oocyte donors were subjected to ovarian stimulation with 150 IU of rFSH and 75 IU of hp-hMG in a GnRH agonist long protocol. Preimplantation genetic screening was performed in all viable embryos. We observed a positive relationship between ovarian response and the number of euploid embryos...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28428945/a-successful-pregnancy-using-completely-immotile-but-viable-frozen-thawed-spermatozoa-selected-by-laser
#12
Huanhua Chen, Guixue Feng, Bo Zhang, Hong Zhou, Jinhui Shu, Xianyou Gan
The aim of this study was to report a successful pregnancy using completely immotile frozen-thawed spermatozoa selected by laser. A single laser shot was used to detect the presence of viable immotile spermatozoa in fresh and frozen-thawed testicular spermatozoa. The viability rate was 55.8% after the laser detection, and cryopreservation was carried out immediately. The thawing test was performed on the day of oocyte pick-up, and no motile sperm were observed after extending the culture for another 4 hours, while a survival rate of 39...
March 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28428943/pathogenic-variant-in-nlrp7-19q13-42-associated-with-recurrent-gestational-trophoblastic-disease-data-from-early-embryo-development-observed-during-in-vitro-fertilization
#13
E Scott Sills, Alexandra J Obregon-Tito, Harry Gao, Thomas K McWilliams, Anthony T Gordon, Catharine A Adams, Rima Slim
OBJECTIVE: To describe in vitro development of human embryos derived from an individual with a homozygous pathogenic variant in NLRP7 (19q13.42) and recurrent hydatidiform mole (HM), an autosomal recessive condition thought to occur secondary to an oocyte defect. METHODS: A patient with five consecutive HM pregnancies was genomically evaluated via next generation sequencing followed by controlled ovarian hyperstimulation, in vitro fertilization (IVF) with intracytoplasmic sperm injection, embryo culture, and preimplantation genetic screening...
March 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28428264/cb1-cannabinoid-receptor-drives-oocyte-maturation-and-embryo-development-via-pi3k-akt-and-mapk-pathways
#14
Angela Patricia López-Cardona, Serafín Pérez-Cerezales, Raúl Fernández-González, Ricardo Laguna-Barraza, Eva Pericuesta, Naiara Agirregoitia, Alfonso Gutiérrez-Adán, Ekaitz Agirregoitia
Endocannabinoids have been recognized as mediators of practically all reproductive events in mammals. However, little is known about the role of this system in oocyte maturation. In a mouse model, we observed that activation of the cannabinoid receptor (CB)1 during in vitro oocyte maturation modulated the phosphorylation status of Akt and ERK1/2 and enhanced the subsequent embryo production. In the absence of the CB1 receptor, in vivo oocyte maturation was impaired and embryo development delayed. The CB2 receptor was unable to rescue these effects...
April 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28428123/transvaginal-ultrasound-guided-embryo-transfer-in-ivf
#15
Lionel Larue, Gwenola Keromnes, Anne Massari, Clémence Roche, Julie Moulin, Héloïse Gronier, Dominique Bouret, Nino Guy Cassuto, Jean Philippe Ayel
OBJECTIVES: to determine whether transvaginal ultrasound-guided embryo transfer is a technique that can be used routinely, whether it improves IVF outcomes and whether it makes difficult transfers easier and more successful. MATERIAL AND METHOD: non-randomised retrospective study conducted between 2012 and 2016 in the Fertility Centre of the Diaconesses-Croix St Simon Hospital Group. The outcomes of 3910 transfers performed by 5 senior operators under transabdominal ultrasound guidance are compared with those of 800 transfers performed by 1 senior operator under transvaginal ultrasound guidance...
April 17, 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28425233/comparison-of-the-standard-gnrh-antagonist-protocol-and-the-luteal-phase-estradiol-gnrh-antagonist-priming-protocol-in-poor-ovarian-responders
#16
Mehmet Fırat Mutlu, İlknur Mutlu, Mehmet Erdem, İsmail Güler, Ahmet Erdem
BACKGROUND/AIM: The aim of the study was to compare the luteal estradiol patch/GnRH antagonists priming protocol (LPP) with the standard GnRH antagonist protocol in poor ovarian responders (PORs) in terms of the outcomes of in vitro fertilization (IVF) treatment. MATERIALS AND METHODS: IVF outcomes of 265 cycles in 265 patients (106 in the LPP group, 159 in the standard GnRH antagonist group) were evaluated retrospectively. RESULTS: Mean length of stimulation (11...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28423889/polymorphism-of-bola-drb3-gene-and-its-association-with-embryo-development-after-in-vitro-fertilization-in-slovak-spotted-x-holstein-fresian-crossbred-cattle
#17
Dominika Kułaj, Joanna Pokorska, Alexander Makarevič, Lucia Olexikova, Joanna Makulska, Peter Chrenek
Objective: The aim of the present research was to verify hypothesis about the association between polymorphism of Bola-DRB3 gene and embryo cleavage after in vitro fertilization in Slovak Spotted x Holstein-Fresian crossbred cattle. Methods: Bovine oocytes recovered from bovine ovaries at slaughtering were matured in E199 medium with 10% FCS and 1IU FSH and LH and fertilized in vitro with sperm of Holstein-Fresian bull during 20h. Presumptive zygotes were cultured in ISM1 culture medium for three days, afterwards the embryos were evaluated and selected into two groups: 1) cleavage (2-, 4-, 6- or 8- cell stage) and 2) undeveloped embryos (no cell cleavage)...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28422964/effect-of-women-s-age-on-embryo-morphology-cleavage-rate-and-competence-a-multicenter-cohort-study
#18
Marie Louise Grøndahl, Sofie Lindgren Christiansen, Ulrik Schiøler Kesmodel, Inge Errebo Agerholm, Josephine Gabriela Lemmen, Peter Lundstrøm, Jeanette Bogstad, Morten Raaschou-Jensen, Steen Ladelund
This multicenter cohort study on embryo assessment and outcome data from 11,744 IVF/ICSI cycles with 104,830 oocytes and 42,074 embryos, presents the effect of women's age on oocyte, zygote, embryo morphology and cleavage parameters, as well as cycle outcome measures corrected for confounding factors as center, partner's age and referral diagnosis. Cycle outcome data confirmed the well-known effect of women's age. Oocyte nuclear maturation and proportion of 2 pro-nuclear (2PN) zygotes were not affected by age, while a significant increase in 3PN zygotes was observed in both IVF and ICSI (p<0...
2017: PloS One
https://www.readbyqxmd.com/read/28421902/the-role-of-ovarian-reserve-markers-in-prediction-of-clinical-pregnancy
#19
Ali G Zebitay, Orkun Cetin, Fatma F Verit, Seda Keskin, M Nafi Sakar, Sercin Karahuseyinoglu, Gulsah Ilhan, Sezai Sahmay
To evaluate the role of ovarian reserve markers in the prediction of clinical pregnancy and embryo transfer accomplishment among poor responder IVF applicants. 304 female poor responder IVF applicants were included in this prospective cohort study conducted at the IVF-unit. Antral follicle count, FSH, LH, E2, AMH and IVF outcomes were compared in pregnant and non-pregnant groups as well as in ET vs. non-ET groups. The number of retrieved oocytes was significantly correlated positively with AMH and AFC, and negatively with FSH and age...
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28421509/appendix-e-rapid-i-tm-closed-vitrification-device-by-vitrolife
#20
Mark G Larman
Cryopreservation of gametes and embryos is a growing technique in numerous reproductive fields including human-assisted reproduction. With improved understanding of embryo physiology and optimized culture conditions, there are now more embryos than ever to vitrify for potential use in subsequent cycles. Many gametes and embryos have been cryopreserved in open systems, but there are concerns with regard to contamination from the liquid nitrogen and also cross-contamination between patients' germplasm. The development of the Rapid-i™, a closed vitrification device that does not use direct contact with liquid nitrogen during vitrification or subsequent storage, will be discussed as well as clinical protocols for human oocytes and embryos...
2017: Methods in Molecular Biology
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