Abstract：
:This study investigated the role of the leptin system in human oocyte maturation and its prognostic value for IVF outcome. The protein concentrations of leptin and soluble leptin receptor in follicular fluid were determined and the free leptin index (FLI) were established. Additionally, mRNA expression levels of different leptin receptor (ObR) isoforms and of PTX3 and HAS2 in cumulus cells were quantified, mutually compared and analysed relative to FLI, body mass index, age and number of retrieved oocytes. Expression of all target genes was detected in the cumulus cells, with relatively low concentrations of ObR-Long. Strong mutual correlations were found between mRNA expression levels of leptin receptor isoforms (P < 0.001) and also between the short isoforms of the leptin receptor and PTX3 (P < 0.001). Although the mean values of the pregnant and non-pregnant groups did not differ significantly for any of the variables, the chance that treatment resulted in ongoing pregnancy was higher with leptin 0.5 ng/mg protein compared with concentrations >0.5 ng/mg protein (P < 0.05). It is concluded that the leptin system appears to play a role in the IVF protocol, whereby signal transduction in cumulus cells occurs predominantly via the short isoforms of ObR.
journal_name
Reprod Biomed Onlinejournal_title
Reproductive biomedicine onlineauthors
van Tol HT,Vernooij JC,Colenbrander B,Gutknecht D,Macklon NS,Roelen BAdoi
10.1016/j.rbmo.2010.03.003subject
Has Abstractpub_date
2010-06-01 00:00:00pages
741-50issue
6eissn
1472-6483issn
1472-6491pii
S1472-6483(10)00128-8journal_volume
20pub_type
杂志文章abstract：:GnRH antagonists are used to prevent premature LH surges in assisted reproduction. The pregnancy rates obtained in several studies have been similar to those obtained in the long protocol with gonadotrophin-releasing hormone (GnRH) agonists. However, lower oestrogen serum concentrations have been observed and fewer oo...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,评审
doi：10.1016/s1472-6483(10)60945-5
更新日期：2005-02-01 00:00:00
abstract：RESEARCH QUESTION:From a clinical perspective, which parameters grant optimal cryopreservation of mouse testicular cell suspensions? DESIGN:We studied the effect of different cryopreservation rates, the addition of sugars, different vessels and the addition of an apoptotic inhibitor on the efficiency of testicular cel...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2018.04.045
更新日期：2018-07-01 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
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 aim of this study was to evaluate the impact of gonadotrophin therapy in combination with intracytoplasmic sperm injection (ICSI) in men with hypogonadotrophic hypogonadism (HH). Twenty-five azoospermic men were diagnosed with HH due to low FSH, LH and total testosterone concentrations. These patients were treated...
journal_title：Reproductive biomedicine online
pub_type： 临床试验,杂志文章
doi：10.1016/s1472-6483(10)60703-1
更新日期：2007-08-01 00:00:00
abstract：RESEARCH QUESTION:Which factors are associated with reproductive outcomes among infertile women undergoing myomectomy for intramural fibroids? DESIGN:This was a historical cohort study including 127 infertile women who underwent myomectomy due to intramural fibroids as part of fertility enhancement treatment at a sing...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2019.04.130
更新日期：2019-09-01 00:00:00
abstract：:Many high-grade embryos selected for transfer according to their morphological evaluation were detected to have chromosomal abnormalities after aneuploidy screening for infertility by preimplantation genetic diagnosis (PGD). The aim of this study was to detect if there is any correlation between embryo quality and gen...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60984-4
更新日期：2006-01-01 00:00:00
abstract：:The revolutionary development of biotechnology-derived therapeutic proteins has provided the expected improvements in quality, purity and consistency, as demonstrated in recombinant human FSH (rhFSH). However, the development of urine-derived gonadotrophins has not always shown comparable improvements. More recently, ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60613-x
更新日期：2006-08-01 00:00:00
abstract：:This paper examines the regulatory framework currently governing the creation of animal-human hybrids and chimera embryos in stem cell research, and some of the ethical implications of such research. It discusses the findings of a recent government select committee that considered the topic. It considers the debate ar...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60187-3
更新日期：2008-01-01 00:00:00
abstract：:The original objection to the paper by Kwong et al. was that the use of an inappropriate (between-pup) estimate of experimental error had exaggerated the importance of the maternal nutrition effect. From the group's most recent response, it has been possible to regenerate the raw data and carry out a further detailed ...
journal_title：Reproductive biomedicine online
pub_type： 评论,杂志文章
doi：10.1016/s1472-6483(10)62121-9
更新日期：2004-08-01 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：:Quality management according to ISO 9001:2008 guidelines includes infertility care quality assessment and improvement. This study aimed to describe the development process of a questionnaire for infertility management. A literature review, qualitative interviews with experts and patients resulted in a content-valid an...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2011.11.020
更新日期：2012-03-01 00:00:00
abstract：RESEARCH QUESTION:Does regular smoking affect semen quality and the levels of DNA methylation in mature human spermatozoa? DESIGN:Spermatozoa from 109 men were evaluated (55 smokers and 54 non-smokers). DNA was extracted from purified spermatozoa, and DNA methylation was quantified by enzyme-linked immunosorbent assay...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2018.08.016
更新日期：2018-11-01 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：RESEARCH QUESTION:A number of live-birth predictive models are available, and despite clinical interest these are rarely used owing to poor performance. In addition, no predictive models specifically for poor ovarian responders (POR) are available. The aim of the current project was to develop a clinically applicable t...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2018.03.013
更新日期：2018-07-01 00:00:00
abstract：:Reproductive strategies for the human species have basically remained unaltered since Homo sapiens first appeared, probably in the valleys of Africa: males have always attempted to pass their genes to the largest feasible number of females, selecting those females capable of providing the best quality of oocytes; fema...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,评审
doi：10.1016/s1472-6483(12)60016-9
更新日期：2002-01-01 00:00:00
abstract：:This report aimed to examine the effects of atosiban on pregnancy outcome after IVF-embryo transfer. A prospective, randomized, placebo-controlled clinical study was performed. A total of 180 women undergoing intracytoplasmic sperm injection who had top-quality embryos were randomly allocated into treatment and contro...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.rbmo.2010.04.009
更新日期：2010-09-01 00:00:00
abstract：RESEARCH QUESTION:Does the time interval between the last gonadotrophin-releasing hormone (GnRH) antagonist dose and the GnRH agonist trigger affect the efficacy of the trigger in IVF treatments? DESIGN:This retrospective cohort study involved 53 normogonadotrophic patients undergoing GnRH antagonist-based IVF cycles,...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.08.004
更新日期：2020-11-01 00:00:00
abstract：:The ability of rabbit fibroblasts of different ages to be reprogrammed following nuclear transfer (NT) to aged recipient oocytes was evaluated. The rate of NT blastocysts reconstructed with presumptive G1 stage morula cells or fetal fibroblasts was significantly higher (41.5% and 51.4%) than was those of cloned embryo...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)61912-8
更新日期：2002-01-01 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：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 M2 haplotype of the annexin A5 gene is a well-recognized predisposition factor for recurrent spontaneous abortion (RSA). A recent publication by Nagirnaja et al. (2015) in PLoS One discusses the risk role of the M2 haplotype for RSA in cases compared with controls of North European extraction and arrives at a nega...
journal_title：Reproductive biomedicine online
pub_type： 评论,杂志文章
doi：10.1016/j.rbmo.2016.02.004
更新日期：2016-05-01 00:00:00
abstract：RESEARCH QUESTION:What is the effect of quercetin and indole-3-carbinol (I3C) on extracellular matrix expression, cell migration and proliferation in human myometrial and uterine leiomyoma cells. DESIGN:Myometrial and leiomyoma cells were treated with quercetin or I3C at different concentrations (10 µg/ml; 50 µg/ml; 1...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.01.006
更新日期：2020-04-01 00:00:00
abstract：:More than 17,000 intrauterine insemination (lUI) cycles were analysed retrospectively with respect to outcome according to differing aetiologies of infertility. The quantity and motility of spermatozoa in the final preparation used for insemination had a positive effect on the outcome, as classically observed in the p...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60223-4
更新日期：2008-09-01 00:00:00
abstract：RESEARCH QUESTION:Does the use of preimplantation genetic testing for aneuploidies (PGT-A) improve outcomes in couples with severe male factor infertility (SMFI)? DESIGN:This retrospective cohort study included SMFI cases that underwent blastocyst transfer with/without PGT-A. Inclusion criteria were SMFI (azoospermia ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2020.06.015
更新日期：2020-10-01 00:00:00
abstract：:Poor response to ovarian stimulation for assisted reproduction treatment is a therapeutic challenge. Oocyte donation may be unacceptable to some patients, and many couples opt to continue with treatment despite low follicle numbers. Minimal data are available regarding conception rates in poor responders who elect to ...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)62164-5
更新日期：2003-06-01 00:00:00
abstract：:In an attempt to examine the role of human menopausal gonadotrophin (HMG) administration in patients with high basal FSH/LH ratio, patients undergoing at least two IVF cycles, where one included HMG (HMG group) and the other included recombinant FSH (rFSH) only (FSH group), were studied. The use of HMG, in this specif...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/s1472-6483(10)60257-x
更新日期：2009-02-01 00:00:00
abstract：:Myomectomy is one of the commonest gynaecological operations. Laparoscopic myomectomy has emerged over the last two decades as a possible alternative to the traditional laparotomy. Most studies have revealed that the laparoscopic procedure is at least as safe as the open procedure as to the rate of complications and m...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2010.09.011
更新日期：2011-07-01 00:00:00
abstract：:The elucidation of the metabolic requirements of human embryos in vivo or in vitro remains, despite being intensively investigated, a work in progress. The adoption of extended embryo culture to the blastocyst stage during the last decade has entailed new challenges. With the increased attention to culture media formu...
journal_title：Reproductive biomedicine online
pub_type： 杂志文章
doi：10.1016/j.rbmo.2010.08.003
更新日期：2010-12-01 00:00:00
