Abstract:
:Intracytoplasmic sperm injection (ICSI) provides an excellent outcome in a consistent manner, and is therefore used worldwide as a routine procedure. Since its introduction, few modifications have been made to its methodology. Recently, a combination of ICSI with micro-hole drilling by laser (LA-ICSI) of the zona pellucida appeared to decrease oocyte degeneration rates and to improve embryo quality and implantation. Cytoplasmic transfer is a more recently introduced procedure where the objective is to improve the quality of patients' oocytes by transferring cytoplasm from a good quality donor oocyte, in cases where it is assumed that cytoplasm is compromised. Nuclear transfer, involving exchange of nuclei between donor and receptor oocytes, is still an experimental procedure, the objective being similar to cytoplasmic transfer in improving oocyte/embryo quality. A nuclear transfer procedure involving somatic cells for reproductive purposes should not be used in humans, for ethical and technical considerations. On the other hand, nuclear transfer for therapeutic purposes to obtain stem cells may be considered in respect of its unique potential in medicine. Finally, the most recently emerged new concept under investigation is the haploidization of somatic cells for the purpose of creating artificial gametes.
journal_name
Reprod Biomed Onlinejournal_title
Reproductive biomedicine onlineauthors
Nagy ZPdoi
10.1016/s1472-6483(10)62085-8keywords:
subject
Has Abstractpub_date
2003-12-01 00:00:00pages
634-40issue
6eissn
1472-6483issn
1472-6491pii
S1472-6483(10)62085-8journal_volume
7pub_type
杂志文章abstract::The aim of this research was to ascertain how the opportunities now open by the Greek legislation regarding assisted reproduction fits with Greek society and how it compares with the wider EU legal framework. A revision of the Greek legislation took place a few years ago, with two new Acts. The different issues that a...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2011.07.024
更新日期:2011-12-01 00:00:00
abstract:RESEARCH QUESTION:Does using an objective time-lapse imaging algorithm (TLIA) after IVF relate to conventional morphological assessment of human blastocysts as a prognosticator for live birth? DESIGN:Prospective use of a TLIA to select embryos in multicentre IVF clinics all using the same strictly controlled laborator...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2019.10.005
更新日期:2020-01-01 00:00:00
abstract::The dramatic increase in the incidence of high order multiple pregnancies that has occurred since the mid-1970s is due to three main factors: increasing female age at conception; increasing use of ovulation induction agents and the introduction of sophisticated assisted reproduction techniques. High order multiple pre...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)61854-8
更新日期:2003-04-01 00:00:00
abstract:RESEARCH QUESTION:There is some controversy regarding the impact of ovarian stimulation on immune cells in women undergoing IVF. The study's aim was to determine whether ovarian stimulation affected immune uterine cells in healthy women undergoing IVF. DESIGN:This prospective cohort study included 28 patients undergoi...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2019.08.004
更新日期:2020-01-01 00:00:00
abstract::Meta-analyses were conducted to investigate the relationship of sperm DNA fragmentation on pregnancy outcome using in-vivo fertilization, IUI, routine IVF and ICSI. Couples with no known infertility problems were 7.0 times (CI 3.17, 17.7) more likely to achieve a pregnancy/delivery if the DNA fragmentation index (DFI)...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章,meta分析
doi:10.1016/s1472-6483(10)62000-7
更新日期:2006-04-01 00:00:00
abstract:RESEARCH QUESTION:Does ovarian stimulation for oocyte vitrification affect disease-free survival and overall survival rates in women with early breast cancer? DESIGN:This cohort study included 259 patients with early breast cancer; 148 patients underwent ovarian stimulation, whereas 111 patients did not. Patients were...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2019.07.003
更新日期:2019-11-01 00:00:00
abstract::Cross-border reproductive care (CBRC) is becoming increasingly common. Little is known about the motivations and information and support needs of people who cross borders to access surrogacy. This study aimed to explore: how those considering or undertaking extraterritorial surrogacy reach their decision; what other a...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2015.08.008
更新日期:2015-11-01 00:00:00
abstract:RESEARCH QUESTION:Does mode of conception influence placental volume and other first-trimester outcomes? DESIGN:This retrospective single-centre case-control study led in Dijon University Hospital included 252 singleton pregnancies (84 IVF with either fresh embryo transfer or frozen-thawed embryo transfer [FET] and 16...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2018.12.023
更新日期:2019-04-01 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::The contemporary approach to ovarian stimulation for IVF treatment results in supraphysiological concentrations of steroids during the follicular and luteal phases of the menstrual cycle. These sex steroids act directly and indirectly to mature the endometrium, influencing receptivity for implantation. Corpus luteum f...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章,评审
doi:10.1016/s1472-6483(11)60215-0
更新日期:2002-01-01 00:00:00
abstract::Available evidence on the impact of ovarian stimulation on the progression of endometriosis or its recurrence was systematically reviewed. Data from ovarian stimulation alone, or associated with intrauterine insemination (IUI) or IVF, were included. Sixteen studies were selected. Initial case reports (n = 11) document...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2018.11.021
更新日期:2019-02-01 00:00:00
abstract::Glutathione S-transferases are a family of multifunctional proteins involved in intracellular transport processes and drug detoxication. In rats, these enzymes are dimeric proteins, and exist as cytosolic and microsomal proteins. The affinity purified rat testicular glutathione S-transferases are comprised of four sub...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)60499-3
更新日期:2004-01-01 00:00:00
abstract::Arrest of proliferation is one of the prerequisites for differentiation of cytotrophoblasts into syncytiotrophoblasts, and thus during differentiation telomerase activity, as well as human telomerase reverse transcriptase (hTERT) expression, is down-regulated. Considering this, it is of interest to investigate whether...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)60035-1
更新日期:2009-06-01 00:00:00
abstract::The clinical implications of congenital uterine anomalies (CUA), and the benefits of hysteroscopic resection of a uterine septum, were evaluated. Studies comparing reproductive and obstetric outcome of patients with and without CUA and of patients who had and had not undergone hysteroscopic resection of a uterine sept...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.rbmo.2014.09.006
更新日期:2014-12-01 00:00:00
abstract::The expression of fibroblast growth factor 10 (FGF-10) has not been studied in human ovarian cortical follicles. The aim of the present study was to investigate the expression of FGF-10 in preantral follicles from fetuses, girls and women. Ovarian samples were obtained from 14 human fetuses at 21-33 gestational weeks ...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2012.07.002
更新日期:2012-10-01 00:00:00
abstract::Ovarian hyperstimulation syndrome (OHSS) is a rare but potentially fatal complication of IVF treatment. The risk of OHSS increases with increasing numbers of follicles aspirated and oocytes retrieved, but there is little evidence to support whether threshold values of either can be used to correctly predict OHSS. Sinc...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)60213-1
更新日期:2008-09-01 00:00:00
abstract::Construction of artificial gametes may be made possible by transferring somatic cells into enucleated oocytes and inducing chromosomal halving of their nuclei. This study examines the possibility of constructing viable human gametes, and their potential for participation in normal fertilization. Spare germinal vesicle...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)60838-3
更新日期:2005-09-01 00:00:00
abstract::This commentary discusses the decision in S.H. and Others v. Austria from a political theoretical and bioethical perspective. I focus on the opinion's discussion of what I call 'circumvention tourism', travelling abroad for the purpose of circumventing domestic prohibitions, especially as to medical services. The majo...
journal_title:Reproductive biomedicine online
pub_type: 评论,杂志文章
doi:10.1016/j.rbmo.2012.07.009
更新日期:2012-12-01 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::For the gamete and embryo donation community, it is well recognized that the implementation of a gamete and embryo donor registry (GEDR) represents a good initiative to ensure the best possible health conditions for donor-conceived individuals. Be they national, institutional or independent, GEDR can play a major role...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2013.10.020
更新日期:2014-03-01 00:00:00
abstract::Spermatogenesis is a critical process for maintaining male fertility. Sustained spermatogonial stem cell self-renewal and differentiation ensures constant spermatogenesis, and several signalling pathways regulate this process. An increasing number of studies have suggested that the mammalian target of rapamycin (mTOR)...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2015.11.007
更新日期:2016-02-01 00:00:00
abstract::This study describes and compares the possible effects of vitrification on the ultrastructural morphology of 20 human mature oocytes vitrified using two different supports, cryoleaf (n = 10) and cryoloop (n = 10). Fresh human mature oocytes (n = 15) were used as controls. Fresh and vitrified-warmed oocytes appeared ro...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)60280-5
更新日期:2009-01-01 00:00:00
abstract::Egg sharing remains a controversial practice, mainly because of the presumed element of payment. In order to find out to what extent financial considerations motivated the women to share their oocytes, the data on egg sharing in Belgium are analysed. Belgium began providing full reimbursement for six in-vitro fertiliz...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/s1472-6483(10)62009-3
更新日期:2006-07-01 00:00:00
abstract::FSH exists as a family of isohormones exhibiting distinct oligosaccharide structures, and the released FSH isoform mixtures change during the follicular phase of the menstrual cycle. In addition, the pulsatile release of gonadotrophins seems to expose follicles to bursts of more less-acidic FSH isoforms and the follic...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章,评审
doi:10.1016/s1472-6483(10)61826-3
更新日期:2002-11-01 00:00:00
abstract::This article reports the results from a study of couples participating in a research protocol in which IVF/preimplantation genetic diagnosis (PGD) was available for non-medical sex selection. The study sought to characterize the moral attitudes and beliefs of couples actively pursuing IVF/PGD solely for purposes relat...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章
doi:10.1016/j.rbmo.2010.09.009
更新日期:2010-12-01 00:00:00
abstract::The fear that the ethics and practice of egg sharing will be undermined by the growing success of oocyte cryopreservation is not based on published evidence. Separate contracts and directed counselling of donors and recipients as required by law in the UK provide protection against potential pitfalls with egg sharing....
journal_title:Reproductive biomedicine online
pub_type: 评论,杂志文章
doi:10.1016/s1472-6483(10)60997-2
更新日期:2006-03-01 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::The process of implantation and trophoblast invasion is currently considered as the most limiting factor for the establishment of pregnancy. Molecular interactions at the embryo-maternal interface during the time of adhesion and subsequent invasion are crucial to the process of embryonic implantation. Both partners, t...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章,评审
doi:10.1016/s1472-6483(10)61717-8
更新日期:2003-03-01 00:00:00
abstract::The aim of this study was to compare the efficacy of two embryo transfer catheters: Wallace and Rocket Embryon in an IVF programme of a tertiary referral university centre. A total of 308 patients undergoing embryo transfer were prospectively randomized to either a transfer with the Wallace catheter or a transfer with...
journal_title:Reproductive biomedicine online
pub_type: 杂志文章,随机对照试验
doi:10.1016/s1472-6483(10)60243-x
更新日期:2008-10-01 00:00:00
abstract::Some patients in IVF programmes repeatedly display an abnormal embryonic development characterized as soon as day 2 post fertilization by a high rate (>60%) of highly fragmented embryos (⩾40% of cytoplasmic fragments) leading to recurrent IVF failures. This study postulated that, for various maternal reasons, some emb...
journal_title:Reproductive biomedicine online
pub_type: 临床试验,杂志文章
doi:10.1016/j.rbmo.2012.01.004
更新日期:2012-04-01 00:00:00