Abstract：
:Artificial oocyte activation using Ca(2+)ionophores or similar compounds is a widely applied technique in IVF laboratories. This is all the more interesting as most of the agents aiming for intracellular Ca(2+) increase do not result in physiological Ca(2+) oscillations but much rather cause a single Ca(2+) transient. Two observations from mammals may explain why a rather non-physiological single Ca(2+) peak caused by ionophores is sufficient to rescue cycles showing severe male factor infertility, deficient oocyte maturation, developmental problems in humans, or both. On the one hand, it has been shown that it is mainly the initial Ca(2+) rise that drives further downstream events, in particular calcium/calmodulin-dependent protein kinase II (CaMKII) action, and on the other, it is possible that this enzyme remains active even in the absence of Ca(2+). It therefore seems that mammalian oocytes can respond to a wide range of intracellular Ca(2+) signals and have a surprisingly high degree of tolerance for changes in cytosolic Ca(2+). As epigenetic consequences or differences in gene expression have not been studied to date, artificial oocyte activation has to be considered as experimental and should only be applied with a proper indication.
journal_name
Reprod Biomed Onlinejournal_title
Reproductive biomedicine onlineauthors
Ebner T,Montag Mdoi
10.1016/j.rbmo.2015.12.004subject
Has Abstractpub_date
2016-03-01 00:00:00pages
271-3issue
3eissn
1472-6483issn
1472-6491pii
S1472-6483(15)00609-4journal_volume
32pub_type
杂志文章abstract：:Modern contraception is considered to be one the major advances of the 20th century. Yet, as the next century begins, it is estimated that there is still a largely unmet need for contraception, with millions of couples worldwide who express a wish to limit the number of their children but do not use or are not satisfi...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)61962-1
更新日期：2001-01-01 00:00:00
abstract：:Today an accurate diagnosis of adenomyosis can be made thanks to progress in imaging techniques: sonography and magnetic resonance imaging (MRI). This has made it possible to clinically correlate the presence of adenomyosis to infertility. At the same time, a series of pathogenetic hypotheses have been presented to ex...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,评审
doi：10.1016/j.rbmo.2011.10.003
更新日期：2012-01-01 00:00:00
abstract：:The objectives of this study were to investigate whether anti-Müllerian hormone (AMH) concentrations can predict pregnancy rates and time to pregnancy (TTP) in women attempting to conceive naturally/having an unplanned conception, and whether there is a lower AMH threshold compatible with natural conception. This pros...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2018.01.013
更新日期：2018-05-01 00:00:00
abstract：:The main adverse effect of IVF is the high multiple pregnancy rate resulting from the transfer of two or more embryos. The objective was to evaluate pregnancy rates in infertile women with a good prognosis who failed to conceive in a fresh elective single embryo transfer (eSET) and had a second cycle with elective dou...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2016.04.011
更新日期：2016-08-01 00:00:00
abstract：:Recurrent pregnancy loss (RPL) is defined by two or more failed pregnancies and accounts for only 1-5% of pregnancy failures. Treatment options for unexplained RPL (uRPL) are limited. Previous studies suggest a link between delayed implantation and pregnancy loss. Based on this, a timely signal for rescue of the corpu...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2016.11.016
更新日期：2017-03-01 00:00:00
abstract：RESEARCH QUESTION:To determine whether there is a risk of localized Zika virus (ZIKV) infection in the upper genital tract, specifically the oocytes, follicular fluids and endometrium, in exposed and/or recently infected reproductive-age women. ZIKV is an Aedes mosquito-borne Flavivirus that can lead to birth defects a...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2019.05.013
更新日期：2019-10-01 00:00:00
abstract：:For several years the present authors' team had not been satisfied with the pregnancy rate achieved by their unit, especially in comparison with the results achieved by other teams with a similar population. A quality programme was established, and it was decided to switch from non-stop to intermittent activity. It wa...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)61636-7
更新日期：2004-11-01 00:00:00
abstract：:This study aims to compare a psychological evaluation test to classical psychoanalysis in infertile women. Two hundred women were submitted to the Psychological Evaluation Test (PET). The sum of the scores for the responses ranged from 15 to 60 points, with scores >/=30 points being defined as 'psycho-emotional maladj...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60492-0
更新日期：2004-01-01 00:00:00
abstract：:The effect of translocations on embryo development was evaluated and results were compared in terms of embryo development with those of embryos obtained from standard intracytoplasmic sperm injection (ICSI) cycles. In 23 translocation carriers with 34 cycles, fertilization, pronuclear morphology scoring (PMS), develop...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)62073-1
更新日期：2003-11-01 00:00:00
abstract：RESEARCH QUESTION:To compare stimulated cycle (STC) versus modified natural cycle (MNC) for endometrial preparation prior to frozen embryo transfer (FET) in terms of convenience and efficacy. DESIGN:Prospective, open-label, randomized controlled study including 119 patients aged 20-38 years, undergoing intra-conjugal ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.01.007
更新日期：2020-04-01 00:00:00
abstract：RESEARCH QUESTION:The study aimed to evaluate the associations of endocrine and ultrasound characteristics with metabolic syndrome in women with polycystic ovary syndrome (PCOS), and whether these associations were modified by body mass index (BMI). DESIGN:The study was a secondary analysis of baseline data from a ran...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2019.06.014
更新日期：2019-11-01 00:00:00
abstract：RESEARCH QUESTION:Are triglyceride fatty acids in the follicular fluid associated with either follicular fluid phospholipid fatty acids or IVF outcomes and, if so, how are they associated? DESIGN:In a prospective cross-sectional study, 70 women undergoing intracytoplasmic sperm injection were recruited. Follicular flu...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.09.024
更新日期：2020-10-04 00:00:00
abstract：:In male infertility, complementary treatment with antioxidant-containing food supplements quadruples the spontaneous pregnancy rate and reduces the cost per pregnancy by 60%. ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2011.05.009
更新日期：2011-09-01 00:00:00
abstract：:In their quest for a child, infertile couples embark on a journey that is full of expectations and hopes. Over recent years, treatment procedures for assisted conception have become safer and more efficient. However, couples undergoing treatment can still experience some degree of emotional stress due to disappointmen...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,评审
doi：10.1016/s1472-6483(10)61078-4
更新日期：2006-06-01 00:00:00
abstract：RESEARCH QUESTION:Does obesity affect endometrial gene expression in women with endometriosis, specifically women with stage I disease? DESIGN:Differential gene expression analysis was conducted on endometrium from women with and without endometriosis (n = 169). Women were diagnosed after surgical visualization and st...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.03.015
更新日期：2020-07-01 00:00:00
abstract：:The evolution of preimplantation genetic screening (PGS) for aneuploidy to blastocyst biopsy and more sensitive 24-chromosome screening techniques has resulted in a new diagnostic category of PGS results: those classified as mosaic. This diagnosis presents significant challenges for clinicians in developing policies r...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2017.01.003
更新日期：2017-04-01 00:00:00
abstract：RESEARCH QUESTION:We recently reported that blocking of placental aquaporins (AQP) abrogates the apoptotic response of the trophoblast. As trophoblast apoptosis is exacerbated in pre-eclampsia, we hypothesized that changes in AQP in these placentae may trigger programmed cell death. We analysed AQP4 expression in pre-e...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2018.08.015
更新日期：2018-11-01 00:00:00
abstract：:The aim of this study was to evaluate the use of biological serum markers, available routinely in most hospital clinical laboratories, in predicting successful outcomes of expectant management in women presenting with a missed miscarriage. This is a single centre observational prospective study over a 16-month period....
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2016.09.004
更新日期：2017-01-01 00:00:00
abstract：:This paper presents the Danish 10-year experience (1999-2009) with cryopreservation (n=386) and autotransplantation of ovarian tissue (n=18). Before applying the technique to humans, the method was thoroughly tested and validated. The cryoprotectant solution was chosen after histological evaluation of mouse and human ...
journal_title：Reproductive biomedicine online
pub_type： 历史文章,杂志文章
doi：10.1016/j.rbmo.2010.10.015
更新日期：2011-02-01 00:00:00
abstract：:The Preimplantation Genetic Diagnosis International Society (PGDIS) was organized in October 2002, with the purpose of encouraging and co-ordinating research, education and training in this multidisciplinary field, requiring a close collaboration of obstetricians, fertility specialists, embryologists and human genetic...
journal_title：Reproductive biomedicine online
pub_type： 指南,杂志文章
doi：10.1016/s1472-6483(10)60567-6
更新日期：2008-01-01 00:00:00
abstract：:In this randomized, controlled, open-label, phase IV study, ovarian response after a follitropin alfa starting dose determined by the CONSORT calculator was compared with a standard dose (150 IU). Normo-ovulatory women (aged 18-34 years) eligible for assisted reproductive techniques were recruited (23 centres: nine Eu...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.rbmo.2014.11.013
更新日期：2015-03-01 00:00:00
abstract：:Gonadotrophin-releasing hormone (GnRH) antagonist rescue is performed by replacing a GnRH agonist with a GnRH antagonist in patients with rapidly rising serum oestradiol who are at risk of ovarian hyperstimulation syndrome (OHSS) during stimulation. It results in a rapid reduction in serum oestradiol, allowing for the...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2012.05.004
更新日期：2012-09-01 00:00:00
abstract：:An increasing number of infertile syphilis-infected individuals have turned to assisted reproductive technology; however, the safety of syphilis carrier serostatus on IVF and embryo transfer outcomes has not been evaluated. Data from 482 patients who delivered singletons were analysed. In the retrospective study, the ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2014.09.001
更新日期：2014-12-01 00:00:00
abstract：RESEARCH QUESTION:Previous studies of aromatase inhibitors on male infertility have focused on men with low testosterone-oestradiol ratio of less than 10. Can aromatase inhibitors improve spermatogenesis in men with idiopathic male infertility with normal testosterone-oestradiol ratio? DESIGN:Prospective study of men ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2018.09.016
更新日期：2019-01-01 00:00:00
abstract：:This study aimed to establish whether patients who receive support counselling by the embryologist as counsellor during assisted reproduction procedures would be better equipped with efficient coping mechanisms than patients who were not counselled. Sixty patients were randomly assigned to either the support counselli...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,随机对照试验
doi：10.1016/s1472-6483(10)61160-1
更新日期：2005-11-01 00:00:00
abstract：:A method has been developed of injecting gonadotrophins vaginally every 3-4 days, to reduce both the dose and frequency of injections. A couple with primary infertility for 5 years with a previous failed IVF cycle was recruited. A total dose of 1200 IU gonadotrophins was administered in three injections. Ten mature oo...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60857-7
更新日期：2006-02-01 00:00:00
abstract：:Since the development of assisted reproduction techniques most countries have witnessed increased rates of multiple pregnancy. Despite the guidelines proposed by various scientific societies these rates continue to be abnormally high. In Spain, as in other Mediterranean countries, a greater number of embryos are trans...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,评审
doi：10.1016/s1472-6483(10)61035-8
更新日期：2006-12-01 00:00:00
abstract：:The effect of increasing donor body mass index (BMI) on clinical pregnancies was retrospectively analysed in a cohort of consecutive 2722 donor oocyte IVF cycles. The relationship between donor BMI and clinical pregnancies was assessed after adjusting for recipient BMI. Clinical pregnancy rates and live birth rates (L...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2017.07.019
更新日期：2017-12-01 00:00:00
abstract：:To investigate the development of follicles and incidence of apoptosis in vitrified cultured mouse ovaries in the presence and absence of Kit ligand, 1-week-old mouse ovaries were cultured in the presence or absence of Kit ligand for 7 days. Development and function of ovarian follicles was evaluated by histology and ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2015.01.009
更新日期：2015-05-01 00:00:00
abstract：RESEARCH QUESTION:Does 3-months of gonadotrophin releasing hormone agonist (GnRHa) treatment before IVF improve clinical pregnancy rate in infertile patients with endometriosis? DESIGN:Single-blind, placebo-controlled clinical trial of 200 infertile women with endometriosis assigned to use GnRHa (study group) or place...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.06.020
更新日期：2020-10-01 00:00:00
