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Stimulation for IVF

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https://www.readbyqxmd.com/read/28938744/an-improved-ivm-method-for-cumulus-oocyte-complexes-from-small-follicles-in-polycystic-ovary-syndrome-patients-enhances-oocyte-competence-and-embryo-yield
#1
F Sánchez, F Lolicato, S Romero, M De Vos, H Van Ranst, G Verheyen, E Anckaert, J E J Smitz
STUDY QUESTION: Are meiotic and developmental competence of human oocytes from small (2-8 mm) antral follicles improved by applying an optimized IVM method involving a prematuration step in presence of C-Type Natriuretic Peptide (CNP) followed by a maturation step in presence of FSH and Amphiregulin (AREG)? SUMMARY ANSWER: A strategy involving prematuration culture (PMC) in the presence of CNP followed by IVM using FSH + AREG increases oocyte maturation potential leading to a higher availability of Day 3 embryos and good-quality blastocysts for single embryo transfer...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938737/complex-catsper-dependent-and-independent-ca2-i-signalling-in-human-spermatozoa-induced-by-follicular-fluid
#2
Sean G Brown, Sarah Costello, Mark C Kelly, Mythili Ramalingam, Ellen Drew, Stephen J Publicover, Christopher L R Barratt, Sarah Martins Da Silva
STUDY QUESTION: Does progesterone in human follicular fluid (hFF) activate CatSper and do other components of hFF modulate this effect and/or contribute separately to hFF-induced Ca2+ signaling? SUMMARY ANSWER: hFF potently stimulates CatSper and increases [Ca2+]i, primarily due to high concentrations of progesterone, however, other components of hFF also contribute to [Ca2+]i signaling, including modulation of CatSper channel activity and inhibition of [Ca2+]i oscillations...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28934714/efficacy-of-dehydroepiandrosterone-dhea-to-overcome-the-effect-of-ovarian-ageing-ditto-a-proof-of-principle-double-blinded-randomized-placebo-controlled-trial
#3
Amarin Narkwichean, Walid Maalouf, Miriam Baumgarten, Lukasz Polanski, Nick Raine-Fenning, Bruce Campbell, Kannamannadiar Jayaprakasan
OBJECTIVE: To evaluate the effect of DHEA supplementation on In-Vitro Fertilisation (IVF) outcome as assessed by ovarian response, oocyte developmental competence and live birth rates in women predicted to have poor ovarian reserve (OR). The feasibility of conducting a large trial is also assessed by evaluating the recruitment rates and compliance of the recruited participants with DHEA/placebo intake and follow-up rates. STUDY DESIGN: A single centre, double blinded, placebo controlled, randomized trial was performed over two years with 60 women undergoing in-vitro fertilisation (IVF)...
September 8, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28923282/association-between-abo-blood-type-and-live-birth-outcomes-in-single-embryo-transfer-cycles
#4
Nigel Pereira, Hency H Patel, Logan D Stone, Paul J Christos, Rony T Elias, Steven D Spandorfer, Zev Rosenwaks
OBJECTIVE: To investigate the association between ABO blood type and live-birth outcomes in patients undergoing IVF with day 5 single embryo transfer (SET). DESIGN: Retrospective cohort study. SETTING: University-affiliated center. PATIENT(S): Normal responders, <40 years old, undergoing their first IVF cycle with fresh SET. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Live-birth rate was the primary outcome...
September 15, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28915981/transcutaneous-electrical-acupoint-stimulation-improves-the-outcomes-of-in-vitro-fertilization-a-prospective-randomized-and-controlled-study
#5
Fan Qu, Fang-Fang Wang, Yan Wu, Jue Zhou, Nicola Robinson, Paul J Hardiman, Jie-Xue Pan, Yi-Jing He, Yu-Hang Zhu, Han-Zhi Wang, Xiao-Qun Ye, Ke-Lin He, Long Cui, Hong-Li Zhao, Ying-Hui Ye
OBJECTIVES: To explore whether transcutaneous electrical acupoint stimulation (TEAS) can improve the outcomes of in vitro fertilization (IVF). DESIGN: A prospective, randomized, and controlled study. SETTING: IVF center in a university hospital. PARTICIPANTS: Four hundred and eighty-one infertile patients with bilateral tubal blockage who were referred for IVF. Patients were randomized into four groups. INTERVENTION: TEAS was administered for 30min, respectively, at 24h before TVOR and two hours before ET...
September 2017: Explore: the Journal of Science and Healing
https://www.readbyqxmd.com/read/28911928/introduction-contemporary-approaches-to-alternative-ovarian-stimulation-strategies-for-in%C3%A2-vitro-fertilization
#6
Richard J Paulson
In the current practice of IVF, the vast majority of cycles use some form of controlled ovarian stimulation before egg retrieval to increase the number of embryos available for transfer or cryopreservation. However, the optimal stimulation regimen has not been established. This month's Views and Reviews presents five different approaches to alternative ovarian stimulation strategies. These include mild stimulation regimens, modified natural cycles, stimulation with oral agents, in vitro maturation (in the absence of stimulation), and finally, a proposal for patient-tailored ovarian stimulation...
September 11, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28905357/interval-between-ivf-stimulation-cycle-and-frozen-embryo-transfer-is-there-a-benefit-to-a-delay-between-cycles
#7
Chloe Higgins, Martin Healey, Sameer Jatkar, Beverley Vollenhoven
BACKGROUND: There is currently limited evidence available regarding ideal timing for frozen embryo transfer (FET). Demonstrating that delaying FETs has few clinical benefits would allow patients to proceed with FET at their earliest convenience. AIMS: To examine whether the time interval between stimulation cycle and subsequent FET affects pregnancy and live birth rates. MATERIALS AND METHODS: This retrospective cohort study, based in a multi-site private in vitro fertilisation (IVF) clinic categorised women into two groups: those having FET cycles administered within 25-35 days or 50-70 days of IVF stimulation cycle and embryo freeze...
September 14, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28903582/methylprednisolone-for-prevention-of-ovarian-hyperstimulation-syndrome-in-patients-with-polycystic-ovarian-syndrome-undergoing-in-vitro-fertilisation-a-randomised-controlled-trial
#8
Ladan Mohammadi Yeganeh, Ashraf Moini, Marzieh Shiva, Naimeh Mirghavam, Narges Bagheri Lankarani
This study aimed to evaluate the effect of methylprednisolone on prevention of ovarian hyperstimulation syndrome (OHSS) in polycystic ovarian syndrome (PCOS) patients undergoing in-vitro fertilisation (IVF). This randomised controlled trial was carried out between November 2009 and December 2013. A total of 219 eligible patients were randomly allocated for treatment (n = 108) or control groups (n = 111). The treatment group received oral methylprednisolone starting from the first day of stimulation...
September 14, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28903472/gnrh-antagonist-versus-long-agonist-protocols-in-ivf-a-systematic-review-and-meta-analysis-accounting-for-patient-type
#9
C B Lambalk, F R Banga, J A Huirne, M Toftager, A Pinborg, R Homburg, F van der Veen, M van Wely
BACKGROUND: Most reviews of IVF ovarian stimulation protocols have insufficiently accounted for various patient populations, such as ovulatory women, women with polycystic ovary syndrome (PCOS) or women with poor ovarian response, and have included studies in which the agonist or antagonist was not the only variable between the compared study arms. OBJECTIVE AND RATIONALE: The aim of the current study was to compare GnRH antagonist protocols versus standard long agonist protocols in couples undergoing IVF or ICSI, while accounting for various patient populations and treatment schedules...
September 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28900749/chromosomal-polymorphisms-are-independently-associated-with-multinucleated-embryo-formation
#10
Ling Sun, Zhi-Heng Chen, Li Yang, Cui-Xing Yi, Jun Liu, Chun-Quan Ou
PURPOSE: The purpose of this study is to explore the factors associated with embryo multinucleation, particularly focused on the influence of parental chromosomal polymorphisms in embryo multinucleation. METHODS: This is a retrospective case-control study involving 1260 infertile couples undergoing their first IVF/ICSI cycles. Couples were screened for abnormalities in their karyotype and were evaluated for blastomere persistence of multinucleation. Demographic characteristics, stimulation protocol, and pregnant outcomes were analyzed using logistic regression analysis...
September 12, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28890430/how-to-personalize-ovarian-stimulation-in-clinical-practice
#11
Giovanna Sighinolfi, Valentina Grisendi, Antonio La Marca
Controlled ovarian stimulation (COS) in in vitro fertilization (IVF) cycles is the starting point from which couple's prognosis depends. Individualization in follicle-stimulating hormone (FSH) starting dose and protocol used is based on ovarian response prediction, which depends on ovarian reserve. Anti-Müllerian hormone levels and the antral follicle count are considered the most accurate and reliable markers of ovarian reserve. A literature search was performed for studies that addressed the ability of ovarian reserve markers to predict poor and high ovarian response in assisted reproductive technology cycles...
September 1, 2017: Journal of the Turkish German Gynecological Association
https://www.readbyqxmd.com/read/28878336/effect-of-gnrhr-polymorphisms-on-in-vitro-fertilization-and-embryo-transfer-in-patients-with-polycystic-ovary-syndrome
#12
Wei-Yan Chen, Yan-Qiu Du, Xia Guan, Hong-Yun Zhang, Ting Liu
We investigated the relationship between gonadotropin-releasing hormone receptor (GnRHR) gene polymorphisms and outcome of patients with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization and embryo transfer (IVF-ET). PCOS patients undergoing IVF-ET were selected, and infertile patients due to dysfunctional oviducts served as controls. GnRHR gene polymorphisms were detected using the polymerase chain reaction-restriction fragment length polymorphism assay. Gene-gene interaction and linkage disequilibrium tests were performed using the SHEsis software...
September 7, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28874516/regulation-of-amh-by-oocyte-specific-growth-factors-in-human-primary-cumulus-cells
#13
Scott Convissar, Marah Armouti, Michelle Fierro, Nicola Winston, Humberto Scoccia, A Musa Zamah, Carlos Stocco
The regulation of AMH production by follicular cells is poorly understood. The purpose of this study was to determine the role of the oocyte-secreted factors, growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15), on AMH production in primary human cumulus cells. Cumulus cells from IVF patients were cultured with a combination of GDF9, BMP15, recombinant FSH, and specific signaling inhibitors. Stimulation with GDF9 or BMP15 separately had no significant effect on AMH mRNA levels. In contrast, simultaneous stimulation with GDF9 and BMP15 (G+B) resulted in a significant increase in AMH mRNA expression...
September 5, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28874259/outcomes-from-a-university-based-low-cost-in%C3%A2-vitro-fertilization-program-providing-access-to-care-for-a-low-resource-socioculturally-diverse-urban-community
#14
Christopher N Herndon, Yanett Anaya, Martha Noel, Hakan Cakmak, Marcelle I Cedars
OBJECTIVE: To report on outcomes from a university-based low-cost and low-complexity IVF program using mild stimulation approaches and simplified protocols to provide basic access to ART to a socioculturally diverse low-income urban population. DESIGN: Retrospective cohort study. SETTING: Academic infertility center. PATIENT(S): Sixty-five infertile couples were enrolled from a county hospital serving a low-resource largely immigrant population...
September 2, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28872129/bottlenose-dolphin-tursiops-truncatus-spermatozoa-collection-cryopreservation-and-heterologous-in-vitro-fertilization
#15
María Jesús Sánchez-Calabuig, Francisco Alberto García-Vázquez, Ricardo Laguna-Barraza, Carlos Barros-García, Daniel García-Parraga, Dimitrios Rizos, Alfonso Gutiérrez Adan, José Félix Pérez-Gutíerrez
The use of cryopreserved dolphin spermatozoa facilitates the exchange of genetic material between aquatic parks and makes spermatozoa accessible to laboratories for studies to further our understanding of marine mammal reproduction. Heterologous IVF, a replacement for homologous IVF, could provide a means to test the sperm fertility potential; to study gamete physiology and early embryo development; and to avoid the use of valuable dolphin oocytes, which are difficult to obtain. Here, we present protocols that have been successfully used to collect and cryopreserve dolphin spermatozoa...
August 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28870217/controlled-ovulation-of-the-dominant-follicle-using-progestin-in-minimal-stimulation-in-poor-responders
#16
Qiuju Chen, Yun Wang, Lihua Sun, Shaozhen Zhang, Weiran Chai, Qingqing Hong, Hui Long, Li Wang, Qifeng Lyu, Yanping Kuang
BACKGROUND: The use of progestin (P) during ovarian stimulation is effective in blocking the luteinizing hormone (LH) surge in women with normal ovarian reserve, however, its effects have not been determined in poor responders. This study aimed to explore the follicular dynamics in P-primed minimal stimulation in poor responders. METHODS: A total of 204 infertile women with diminished ovarian reserve were allocated into the medroxyprogesterone acetate (MPA) group or the natural-cycle control group in an alternating order...
September 5, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28869206/serum-magnesium-and-calcium-levels-in-infertile-women-during-a-cycle-of-reproductive-assistance
#17
Elena Grossi, Sara Castiglioni, Claudia Moscheni, Patrizio Antonazzo, Irene Cetin, Valeria Maria Savasi
Magnesium (Mg) and calcium (Ca) are essential cations for women's preconception health. It is well known that, in blood, the concentration of ionized form of these two cations is temporally altered during menstrual cycle, suggesting a correlation between sex steroid hormones and serum calcium and magnesium levels. Evidence from literature suggests that in assisted reproductive technology increasing estrogens during ovarian hyperstimulation may also modulate serum magnesium and calcium levels. Therefore, we first examined total serum magnesium and calcium levels during follicular phase in a large population of infertile patients who underwent intrauterine insemination (IUI)...
May 1, 2017: Magnesium Research: Official Organ of the International Society for the Development of Research on Magnesium
https://www.readbyqxmd.com/read/28869028/-the-use-of-anti-m%C3%A3-llerian-hormone-in-fertility-treatment
#18
Fie Pilsgaard, Anna Garcia-Alix Grynnerup, Kristine Løssl, Anja Pinborg
The need for fertility treatment in Denmark is increasing, one of the main causes being postponed parenthood. Ovarian reserve is determined by the anti-Müllerian hormone (AMH) level and by antral follicle count. Both tests can predict the ovarian response to gonadotropin treatment prior to in vitro fertilization (IVF) and are used to individualize ovarian stimulation to achieve an appropriate number of follicles and to avoid ovarian hyperstimulation. A new assay detects low values of AMH and may predict who will benefit from IVF, and who should be referred directly to oocyte donation...
August 7, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28854933/does-daily-co-administration-of-letrozole-and-gonadotropins-during-ovarian-stimulation-improve-ivf-outcome
#19
Jigal Haas, Rawad Bassil, Jim Meriano, Nivin Samara, Eran Barzilay, Noa Gonen, Robert F Casper
BACKGROUND: For the last year we have been treating normal responders with gonadotropins and letrozole during the whole stimulation in order to improve response to FSH by increasing the intrafollicular androgen concentration, and to reduce circulating estrogen concentrations. The aim of this study was to compare the IVF outcome of normal responders treated with letrozole and gonadotropins during ovarian stimulation with patients treated with gonadotropins only. METHODS: A single centre retrospective cohort study of 174 patients (87 in each group)...
August 30, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28854592/weight-reduction-intervention-for-obese-infertile-women-prior-to-ivf-a-randomized-controlled-trial
#20
Snorri Einarsson, Christina Bergh, Britt Friberg, Anja Pinborg, Anna Klajnbard, Per-Olof Karlström, Linda Kluge, Ingrid Larsson, Anne Loft, Anne-Lis Mikkelsen-Englund, Kaj Stenlöf, Anna Wistrand, Ann Thurin-Kjellberg
STUDY QUESTION: Does an intensive weight reduction programme prior to IVF increase live birth rates for infertile obese women? SUMMARY ANSWER: An intensive weight reduction programme resulted in a large weight loss but did not substantially affect live birth rates in obese women scheduled for IVF. WHAT IS ALREADY KNOWN: Among obese women, fertility and obstetric outcomes are influenced negatively with increased risk of miscarriage and a higher risk of maternal and neonatal complications...
August 1, 2017: Human Reproduction
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