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https://www.readbyqxmd.com/read/28191261/global-dna-methylation-levels-are-altered-by-modifiable-clinical-manipulations-in-assisted-reproductive-technologies
#1
Jayashri Ghosh, Christos Coutifaris, Carmen Sapienza, Monica Mainigi
BACKGROUND: We analyzed placental DNA methylation levels at repeated sequences (LINE1 elements) and all CCGG sites (the LUMA assay) to study the effect of modifiable clinical or laboratory procedures involved in in vitro fertilization. We included four potential modifiable factors: oxygen tension during embryo culture, fresh embryo transfer vs frozen embryo transfer, intracytoplasmic sperm injection (ICSI) vs conventional insemination or day 3 embryo transfer vs day 5 embryo transfer...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28182605/assisted-reproductive-technology-surveillance-united-states-2014
#2
Saswati Sunderam, Dmitry M Kissin, Sara B Crawford, Suzanne G Folger, Denise J Jamieson, Lee Warner, Wanda D Barfield
PROBLEM/CONDITION: Since the first U.S. infant conceived with assisted reproductive technology (ART) was born in 1981, both the use of ART and the number of fertility clinics providing ART services have increased steadily in the United States. ART includes fertility treatments in which eggs or embryos are handled in the laboratory (i.e., in vitro fertilization [IVF] and related procedures). Women who undergo ART procedures are more likely than women who conceive naturally to deliver multiple-birth infants...
February 10, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28169189/ovarian-stimulation-protocols-for-ivf-is-more-better-than-less
#3
REVIEW
Michael M Alper, Bart C Fauser
Conventional ovarian stimulation protocols for IVF are designed to achieve maximum oocyte yields. Conventional protocols, however, are associated with patient discomfort, increased risk of ovarian hyperstimulation syndrome and higher costs. In recent years, mild stimulation protocols have risen in popularity. These protocols typically use lower doses (≤150 IU/day), shorter duration of exogenous gonadotrophins, or both, compared with conventional protocols, with the goal of limiting the number of retrieved oocytes to less than eight...
January 24, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28162937/effect-of-progesterone-elevation-in-follicular-phase-of-ivf-cycles-on-the-endometrial-receptivity
#4
REVIEW
B Lawrenz, H M Fatemi
The premature rise of progesterone during the late follicular phase in stimulated IVF cycles is a frequent event, and emerging evidence shows that premature progesterone rise does negatively affect the outcome of assisted reproductive techniques. The effect of elevated peripheral progesterone levels in the late follicular phase seems to be on the endometrium and the window of implantation, which may lead to asynchrony between the endometrium and the developing embryo. In stimulated cycles, endometrial maturation is advanced on the day of oocyte retrieval, and patients with a progesterone level above 1...
January 24, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28139240/optimal-euploid-embryo-transfer-strategy-fresh-versus-frozen-after-preimplantation-genetic-screening-with-next-generation-sequencing-a-randomized-controlled-trial
#5
Alison Coates, Allen Kung, Emily Mounts, John Hesla, Brandon Bankowski, Elizabeth Barbieri, Baris Ata, Jacques Cohen, Santiago Munné
OBJECTIVE: To compare two commonly used protocols (fresh vs. vitrified) used to transfer euploid blastocysts after IVF with preimplantation genetic screening. DESIGN: Randomized controlled trial. SETTING: Private assisted reproduction center. PATIENT(S): A total of 179 patients undergoing IVF treatment using preimplantation genetic screening. INTERVENTION(S): Patients were randomized at the time of hCG administration to either a freeze-all cycle or a fresh day 6 ET during the stimulated cycle...
January 27, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28130435/cumulative-live-birth-rates-after-one-art-cycle-including-all-subsequent-frozen-thaw-cycles-in-1050-women-secondary-outcome-of-an-rct-comparing-gnrh-antagonist-and-gnrh-agonist-protocols
#6
M Toftager, J Bogstad, K Løssl, L Prætorius, A Zedeler, T Bryndorf, L Nilas, A Pinborg
STUDY QUESTION: Are cumulative live birth rates (CLBRs) similar in GnRH-antagonist and GnRH-agonist protocols for the first ART cycle including all subsequent frozen-thaw cycles from the same oocyte retrieval? SUMMARY ANSWER: The chances of at least one live birth following utilization of all fresh and frozen embryos after the first ART cycle are similar in GnRH-antagonist and GnRH-agonist protocols. WHAT IS KNOWN ALREADY: Reproductive outcomes of ART treatment are traditionally reported as pregnancies per cycle or per embryo transfer...
January 26, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28121989/reduced-ectopic-pregnancy-rate-on-day-5-embryo-transfer-compared-with-day-3-a-meta-analysis
#7
Bingqian Zhang, Linlin Cui, Rong Tang, Lingling Ding, Lei Yan, Zi-Jiang Chen
OBJECTIVE: To compare the risk of ectopic pregnancy (EP) after embryo transfer on day 3(D3-ET) and day 5(D5-ET). DESIGN: Meta-analysis. PATIENTS: Women with pregnancy resulting from in vitro undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). RESULT(S): Twenty-two studies were identified through research conducted using the PubMed, Embase, and Cochrane databases and ClinicalTrials.gov...
2017: PloS One
https://www.readbyqxmd.com/read/28118836/the-impact-of-endometriosis-on-the-outcome-of-assisted-reproductive-technology
#8
Mireia González-Comadran, Juan Enrique Schwarze, Fernando Zegers-Hochschild, Maria do Carmo B Souza, Ramon Carreras, Miguel Ángel Checa
BACKGROUND: Endometriosis has been described to impair fertility through various mechanisms. However, studies evaluating the reproductive outcomes of women undergoing assisted reproductive technologies show controversial results. The aim of this study is to assess whether the reproductive outcome is impaired among women with endometriosis-associated infertility undergoing IVF. METHODS: A retrospective cohort study was performed, including women undergoing IVF reported by the Red Latinoamericana de Reproduccion Asistida (Redlara) registry, between January 2010 and December 2012...
January 24, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28114395/assisted-reproductive-technology-and-newborn-size-in-singletons-resulting-from-fresh-and-cryopreserved-embryos-transfer
#9
Galit Levi Dunietz, Claudia Holzman, Yujia Zhang, Nicole M Talge, Chenxi Li, David Todem, Sheree L Boulet, Patricia McKane, Dmitry M Kissin, Glenn Copeland, Dana Bernson, Michael P Diamond
OBJECTIVES AND STUDY DESIGN: The aim of this study was two-fold: to investigate the association of Assisted Reproductive Technology (ART) and small newborn size, using standardized measures; and to examine within strata of fresh and cryopreserved embryos transfer, whether this association is influenced by parental infertility diagnoses. We used a population-based retrospective cohort from Michigan (2000-2009), Florida and Massachusetts (2000-2010). Our sample included 28,946 ART singletons conceived with non-donor oocytes and 4,263,846 non-ART singletons...
2017: PloS One
https://www.readbyqxmd.com/read/28105107/long-time-vs-short-time-insemination-of-sibling-eggs
#10
Jing Liu, Xiao Zhang, Yue Yang, Junliang Zhao, Dayong Hao, Jianrui Zhang, Yanli Liu, Wenbin Wu, Xingling Wang
This study aimed to evaluate the impact of a short insemination procedure on embryo development, assess the reliability of a fertilization check prior to the appearance of pronuclei and elucidate the role of rescue intracytoplasmic sperm injection (R-ICSI). Patients who had ≥9 eggs, were aged <38 years and had normal semen samples were included. The sibling eggs of each patient were divided into two groups; one half for conventional in vitro fertilization (IVF; insemination time, 20 h) and the other half for short insemination (insemination time, 5 h)...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099907/increased-incidence-of-ectopic-pregnancy-after-in-vitro-fertilization-in-women-with-decreased-ovarian-reserve
#11
Shengli Lin, Rui Yang, Hongbin Chi, Ying Lian, Jiejing Wang, Shuo Huang, Cuiling Lu, Ping Liu, Jie Qiao
The incidence of ectopic pregnancy after assisted reproductive technology is increased approximately 2.5-5-fold compared with natural conceptions.Strategies were used to decrease the incidence of ectopic pregnancy, but ectopic pregnancy still occurs. In the present study, women were selected with decreased ovarian reserve (defined as FSH > 10 IU/L) aged 20 to 38 years who underwent IVF-ET between 2009 and 2014. These 2,061 women were age-matched with an equal number of women with normal ovarian reserve (defined as FSH ≤ 10 IU/L)...
January 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28090462/pretreatment-of-normal-responders-in-fresh-in-vitro-fertilization-cycles-a-comparison-of-transdermal-estradiol-and-oral-contraceptive-pills
#12
Nigel Pereira, Allison C Petrini, Zhen N Zhou, Jovana P Lekovich, Isaac Kligman, Zev Rosenwaks
OBJECTIVE: The aim of this study was to investigate the impact of pretreatment with transdermal estradiol (E2) compared to oral contraceptive pills (OCPs) on controlled ovarian stimulation (COS) response in normal responders undergoing fresh in vitro fertilization (IVF)-embryo transfer (ET) cycles. METHODS: A retrospective cohort study was performed of normal responders undergoing fresh IVF-ET cycles who received pretreatment with transdermal E2 versus OCPs prior to fresh IVF-ET...
December 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28089573/what-is-a-difficult-transfer-analysis-of-7-714-embryo-transfers-the-impact-of-maneuvers-during-embryo-transfers-on-pregnancy-rate-and-a-proposal-of-objective-assessment
#13
Alejandro Kava-Braverman, Francisca Martínez, Ignacio Rodríguez, Manuel Álvarez, Pedro N Barri, Buenaventura Coroleu
OBJECTIVE: To establish the relationship between the degree of difficulty of ET and pregnancy rate (PR), with a view to proposing an algorithm for the objective assessment of ET. DESIGN: Retrospective, observational study. SETTING: In vitro fertilization unit. PATIENT(S): Women undergoing assisted reproductive technology (ART) with ET after IVF/intracytoplasmic sperm injection, in whom fresh embryo transfer or frozen-thawed embryo transfer was performed...
January 12, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28089077/the-changing-pattern-of-uterine-contractions-before-and-after-fresh-embryo-transfer-and-its-relation-to-clinical-outcome
#14
Cathy Hoi Sze Chung, Alice Wai Yee Wong, Carol Pui Shan Chan, Sotirios H Saravelos, Grace Wing Shan Kong, Lai Ping Cheung, Jacqueline Pui Wah Chung, Tin Chiu Li
In this prospective cohort study of 286 women undergoing fresh embryo transfer after IVF, uterine contraction frequency and direction were measured before (-5 min), 5 min after (+5 min) and 60 min after (+60 min) embryo transfer. Mean ± SD uterine contraction frequency at -5 min was 1.8 ± 1.1 contractions per min, increasing significantly (P < 0.05) to 2.0 ± 1.1 at +5 min, and returning back to baseline 1.8 ± 1.1 at +60 min. At -5 min, the proportion of women the with retrograde, antegrade, indeterminate direction and absent contractions were 33%, 44%, 17% and 6%; at +5 min, 40%, 42%, 13% and 5%, and at +60 min, 42%, 38%, 14% and 6%...
December 23, 2016: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28070710/the-accumulation-of-vitrified-oocytes-is-a-strategy-to-increase-the-number-of-euploid-available-blastocysts-for-transfer-after-preimplantation-genetic-testing
#15
Sandrine Chamayou, Maria Sicali, Carmelita Alecci, Carmen Ragolia, Annalisa Liprino, Daniela Nibali, Giorgia Storaci, Antonietta Cardea, Antonino Guglielmino
PURPOSE: In a preimplantation genetic diagnosis for aneuploidy (PGD-A) program, the more embryos available for biopsy, consequently increases the chances of obtaining euploid embryos to transfer. The aim was to increase the number of viable euploid blastocysts in patients undergoing PGD-A using fresh oocytes together with previously accumulated vitrified oocytes. METHODS: Sixty-nine patients with normal ovarian reserve underwent PGD-A for repeated implantation failure or recurrent pregnancy loss indication...
January 9, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28069185/combination-of-uterine-natural-killer-cell-immunoglobulin-receptor-haplotype-and-trophoblastic-hla-c-ligand-influences-the-risk-of-pregnancy-loss-a-retrospective-cohort-analysis-of-direct-embryo-genotyping-data-from-euploid-transfers
#16
Scott J Morin, Nathan R Treff, Xin Tao, Richard T Scott, Jason M Franasiak, Caroline R Juneau, Marcy Maguire, Richard T Scott
OBJECTIVE: To compare maternal uterine natural killer cell immunoglobulin receptor (KIR) genotype and haplotype frequencies between patients whose euploid single-embryo transfer resulted in pregnancy loss and those that resulted in delivery and to determine if the risk of pregnancy loss was affected by the HLA-C genotype content in the embryo. DESIGN: Retrospective cohort. SETTING: Academic research center. PATIENT(S): Autologous fresh IVF cycles resulting in positive serum β-hCG during 2009-2014...
January 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28069183/evaluation-of-in%C3%A2-vitro-fertilization-outcomes-using-interleukin-8-in-culture-medium-of-human-preimplantation-embryos
#17
Guanyou Huang, Congrong Zhou, Chi-Ju Wei, Shuyun Zhao, Fa Sun, Hua Zhou, Wenjie Xu, Jun Liu, Chao Yang, Lingfei Wu, Guidan Ye, Zhuo Chen, Yongli Huang
OBJECTIVE: To investigate whether selected cytokines are detectable in the embryo culture medium (EM) of human preimplantation embryos (HPE) and what the relationship is of the cytokines with clinical outcomes. DESIGN: Cross-sectional study. SETTING: University-affiliated tertiary teaching hospital. PATIENT(S): Three-hundred and thirty infertile women who underwent fresh cycle in vitro fertilization (IVF) between January and December 2014...
January 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28069012/systematic-review-of-worldwide-trends-in-assisted-reproductive-technology-2004-2013
#18
REVIEW
Vitaly A Kushnir, David H Barad, David F Albertini, Sarah K Darmon, Norbert Gleicher
BACKGROUND: Assisted Reproductive Technology (ART) has undergone considerable changes over the last decade, with consequences on ART outcomes in different regions of the world being unknown. METHODS: We conducted a systematic review of published national and regional ART registry data to assess how changes in clinical practice between 2004 and 2013 have impacted outcomes in Australia and New Zealand, Canada, Continental Europe, the United Kingdom (U.K.), Japan, Latin America, and the United States (U...
January 10, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28066833/the-role-of-g-csf-in-recurrent-implantation-failure-a-randomized-double-blind-placebo-control-trial
#19
Fatemeh Davari-Tanha, Ensieh Shahrokh Tehraninejad, Mohadese Ghazi, Zahra Shahraki
BACKGROUND: Recurrent implantation failure (RIF) is the absence of implantation after three consecutive In Vitro Fertilization (IVF) cycles with transferring at least four good quality embryos in a minimum of three fresh or frozen cycles in a woman under 40 years. The definition and management of RIF is under constant scrutiny. OBJECTIVE: To investigate the effects of Granulocyte colony stimulating factor (G-CSF) on RIF, pregnancy rate, abortion rate and implantation rates...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28065417/assisted-reproduction-technique-outcomes-for-fresh-versus-deferred-cryopreserved-day-2-embryo-transfer-a-retrospective-matched-cohort-study
#20
Mathilde Bourdon, Pietro Santulli, Vanessa Gayet, Chloé Maignien, Louis Marcellin, Khaled Pocate-Cheriet, Charles Chapron
Ovarian stimulation could adversely affect endometrial receptivity and consequently embryo implantation. One emerging strategy is the 'freeze-all' approach. Most studies have focused on blastocyst transfers, with limited research on day-2 deferred cryopreserved embryo transfers. In this large retrospective cohort study, outcomes were compared between day-2 fresh versus deferred cryopreserved embryo transfers. After matching by age and number of previous cycles, 325 cycles were included in the fresh group and 325 in the deferred cryopreserved embryo transfers group: no significant differences were found between groups in implantation (0...
December 19, 2016: Reproductive Biomedicine Online
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