Abstract:
:Recurrent pregnancy loss (RPL) is a common and distressing disorder. Chromosomal errors in the embryo are the single most common cause, whereas uterine factors are invariably invoked to explain non-chromosomal miscarriages. These uterine factors are, however, poorly defined. The ability of a conceptus to implant in the endometrium is normally restricted to a few days in the menstrual cycle. A limited 'window of implantation' ensures coordinated embryonic and endometrial development, thereby minimizing the risk of late implantation of compromised embryos. In this paper, we review emerging evidence, indicating that RPL is associated with impaired differentiation of endometrial stromal cells into specialized decidual cells. From a functional perspective, this differentiation process, termed decidualization, is not only critical for placental development but also signals the end of the implantation window and bestows on the endometrium the ability to recognize, respond to and eliminate implanting compromised embryos. Thus, we propose that spontaneous decidualization of the human endometrium, which inevitably causes menstrual shedding in the absence of a viable conceptus, serves as functional 'window for natural embryo selection'. Conversely, impaired decidualization predisposes to late implantation, negates embryo quality control and causes early placental failure, regardless of the embryonic karyotype. This pathological pathway also explains the common observation that many RPL patients seem exceptionally fertile, often conceiving within one or two cycles. Thus, as the clinical correlate of inappropriate uterine receptivity, 'superfertility' should be considered as a genuine reproductive disorder that requires targeted intervention.
journal_name
Mol Hum Reprodjournal_title
Molecular human reproductionauthors
Teklenburg G,Salker M,Heijnen C,Macklon NS,Brosens JJdoi
10.1093/molehr/gaq079subject
Has Abstractpub_date
2010-12-01 00:00:00pages
886-95issue
12eissn
1360-9947issn
1460-2407pii
gaq079journal_volume
16pub_type
杂志文章,评审abstract::This study was undertaken to evaluate the effects of gamma-aminobutyric acid (GABA) and GABAergic agonists and antagonists on sperm kinematic parameters and hyperactivation, evaluated by a computer-assisted semen analysis (CASA) system, and intracellular cAMP content in 22 normozoospermic semen samples. Because of the...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/2.10.733
更新日期:1996-10-01 00:00:00
abstract::It is widely assumed that, after ovulation, the human endometrium undergoes specific changes and becomes receptive to the implantation of embryo during the mid-secretory phase. When implantation does not take place, further changes occur which eventually result in the shedding of human endometrium. The present study w...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/6.7.627
更新日期:2000-07-01 00:00:00
abstract::Polar body emission is a specialized cell division throughout the animal kingdom, serving to reduce chromosome ploidy while preserving the egg cytoplasm. Critical to polar body emission are the asymmetric positioning of the meiotic spindle prior to anaphase, with one pole attached to the oocyte cortex, and the simulta...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gar026
更新日期:2011-05-01 00:00:00
abstract::Preterm premature rupture of the membranes (PPROM) has been considered to be closely associated with chorioamnionitis. However, the detailed mechanism is not well understood. Alpha 1 antitrypsin (AAT) was reported to decrease in concentration in amniotic fluid obtained from patients with PPROM. However, the origin of ...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gan071
更新日期:2009-01-01 00:00:00
abstract::The DAZL (DAZ-like) gene is suggested to be an ancestral gene of the DAZ (deleted in azoospermia) gene on the Y chromosome, which is a strong candidate for the azoospermic factor. Recently, it has been reported that the T54A (Thr54-->Ala) polymorphism in exon 3 of the DAZL gene is associated with spermatogenic failure...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gah202
更新日期:2005-07-01 00:00:00
abstract::Several investigators have noted that hormone-dependent development of endometriosis implants lags behind that of simultaneously analysed eutopic endometrium. With the recent discovery of the oestrogen receptor-beta (ER-beta) isoform, the aim of this study was to investigate whether differences in the expression of ER...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/5.7.651
更新日期:1999-07-01 00:00:00
abstract::The objectives of this study were to determine if human ejaculated sperm exhibit active caspases and if caspase-dependent apoptosis markers are identifiable. Sperm from fertile donors and infertile patients were examined after gradient separation into leukocyte-free fractions of high and low motility. Sperm were evalu...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/8.11.984
更新日期:2002-11-01 00:00:00
abstract:STUDY QUESTION:Which different pathways and functions are altered in rhesus monkey oocytes that fail to mature after an ovulatory stimulus? SUMMARY ANSWER:Failed to mature (FTM) oocytes complete a large portion of the transition in transcriptome composition associated with normal maturation, but also manifest numerous...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gay032
更新日期:2018-10-01 00:00:00
abstract::Development of uterine glands (adenogenesis) in mammals typically begins during the early post-natal period and involves budding of nascent glands from the luminal epithelium and extensive cell proliferation in these structures as they grow into the surrounding stroma, elongate and mature. Uterine glands are essential...
journal_title:Molecular human reproduction
pub_type: 杂志文章,评审
doi:10.1093/molehr/gat031
更新日期:2013-09-01 00:00:00
abstract::Estrogen and selective estrogen receptor modulators (SERMs) differentially impact endometrial cell function, however, the biological basis of these differences is not established. Deregulated cell adhesion to the extracellular matrix, cell movement and invasion are related to endometrial disorders, such as endometrios...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gap045
更新日期:2009-10-01 00:00:00
abstract::This study assesses the role of progesterone receptor membrane component 1 (PGRMC1) in actions of progesterone (P4) on human myometrium during pregnancy and labour. Myometrial tissues were obtained from non-pregnant patients during hysterectomy or pregnant women undergoing C-section at term and preterm, before and dur...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gaq096
更新日期:2011-04-01 00:00:00
abstract::In order to improve assisted fertilization in humans it is important to elucidate the mechanisms of control of growth and development in the early pre-embryo. Increasing evidence shows that growth factors are of importance for such control mechanisms. As platelet-derived growth factor (PDGF) has been shown to enhance ...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/2.7.507
更新日期:1996-07-01 00:00:00
abstract::A novel gene, TSG23/Tsg23, was identified by comparing the expression profiles of human adult and fetal testis using Affymetrix Genechips. RT-PCR analysis from multiple human and mouse tissues indicated TSG23/Tsg23 mRNA was mainly expressed in the testis. In situ hybridization revealed that TSG23/Tsg23 mRNA was locate...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gap015
更新日期:2009-04-01 00:00:00
abstract::After meiosis, during the final stages of spermatogenesis, the haploid male genome undergoes major structural changes, resulting in a shift from a nucleosome-based genome organization to the sperm-specific, highly compacted nucleoprotamine structure. Recent data support the idea that region-specific programming of the...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gar063
更新日期:2012-01-01 00:00:00
abstract::Charcot-Marie-Tooth (CMT) disease type 1A is an autosomal dominant peripheral neuropathy characterized by slow progressive distal muscle wasting and weakness, and decreased nerve conduction velocities. Most CMT1A cases (>98%) are caused by a duplication of a 1.5 Mb region on the short arm of chromosome 17 containing t...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/4.10.978
更新日期:1998-10-01 00:00:00
abstract::We investigated the expression of methyl transferase G9a and methylated histone H3-K9 in fresh human decidual/endometrial tissue of 12 normal early pregnancies and 15 unexplained recurrent spontaneous abortions (URSA). The samples were obtained through dilatation and curettage and collected as per strict inclusion-exc...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gar038
更新日期:2011-11-01 00:00:00
abstract::Fetal membranes overlying the cervix in patients prior to and during labour, and within the rupture tear after spontaneous delivery at term, exhibit altered morphology. In this study we report that in comparison to mid-zone fetal membranes biopsies, these regions are characterized by increased expression of the matric...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/7.5.463
更新日期:2001-05-01 00:00:00
abstract::Within the context of an oocyte in vitro maturation (IVM) program for reproductive treatment, oocyte cumulus complexes (COCs) derived from follicles <6 mm in patients with PCOS were matured in vitro. Key transcripts related to meiotic maturation (FSHR, LHCGR, EGFR, PGR) and oocyte competence (AREG, ADAMTS, HAS2, PTGS2...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gas038
更新日期:2013-01-01 00:00:00
abstract::Oligozoospermia (low sperm count) is a common semen deficiency. However, to date, few genetic defects have been identified to cause this condition. Moreover, even fewer molecular genetic diagnostic tests are available for patients with oligozoospermia in the andrology clinic. Based on animal and gene expression studie...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gat008
更新日期:2013-06-01 00:00:00
abstract::Ovaries surgically removed for fertility preservation from a total of 24 women served as a source of human small antral follicles, including the follicular fluid (FF) and the corresponding granulosa cells (GC). The FF was used to evaluate the intrafollicular concentrations of anti-Müllerian hormone (AMH), inhibin-B, e...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gaq001
更新日期:2010-09-01 00:00:00
abstract::Prevention of mitochondrial DNA (mtDNA) diseases may currently be possible using germline nuclear transfer (NT). However, scientific evidence to compare efficiency of different NT techniques to overcome mtDNA diseases is lacking. Here, we performed four types of NT, including first or second polar body transfer (PB1/2...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gaz062
更新日期:2019-12-01 00:00:00
abstract::Endometriosis is a gynaecological disease with a certain genetic background, but the locations of possible genomic aberrations are still poorly clarified. Intercellular adhesion molecule-1 (ICAM-1), which is a surface glycoprotein that promotes adhesion in immunological and inflammatory reactions, seems to play a role...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gag002
更新日期:2003-01-01 00:00:00
abstract::Microarray studies generating lists of genes with altered expression in placentas from pregnancies complicated with pre-eclampsia (PE) have so far been published in several different studies. Working under the assumption that altered gene expression in PE may be the result of altered expression of regulatory transcrip...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gal001
更新日期:2006-01-01 00:00:00
abstract::Survivin is a novel inhibitor of apoptosis. It has been reported that survivin is expressed during fetal development and in cancer tissues, but its expression has not been reported in adult tissues. We investigated the expression of survivin in the endometria of women with regular menstrual cycles using reverse transc...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/6.6.529
更新日期:2000-06-01 00:00:00
abstract::Because of its distinctive ability to act as a mitogen, a mitogen and a morphogen, hepatocyte growth factor/scatter factor (HGF/SF) has all the characteristics of a molecule able to function in regulatory networks of motility, such as the spermatogenic epithelium, and this through binding of its receptor p190MET (C-ME...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/2.1.2
更新日期:1996-01-01 00:00:00
abstract::The aim of this study was to determine the effects of tumour necrosis factor alpha (TNF), interleukin-1 alpha (IL-1alpha), macrophage colony-stimulating factor (MCSF) and transforming growth factor beta (TGFbeta) on the secretion of matrix metalloproteinases (MMP), human chorionic gonadotrophin (HCG) and fetal fibrone...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/5.3.252
更新日期:1999-03-01 00:00:00
abstract::The endocrine disrupting chemical o, p'-dichlorodiphenyltrichloroethane (DDT) can affect reproductive organs, tissues and cells in several species. Treatment of human endometrial endothelial cells (HEECs) with 50 microM o,p'-DDT decreased their proliferation compared with the control. Microarray analyses revealed that...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gam091
更新日期:2008-02-01 00:00:00
abstract::Fatty acid amide hydrolase (FAAH) is involved in embryo development and implantation. Sex hormones down-modulate FAAH activity in the mouse uterus. However, the regulation of the FAAH gene in the uterus is unknown. Our results showed that FAAH mRNA is localized to uterine epithelial cells and circular myometrium durin...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/8.7.651
更新日期:2002-07-01 00:00:00
abstract::Using a dispersed human luteal cell culture model, progesterone synthesis following treatment by incremental doses of human chorionic gonadotrophin (HCG) and the stable prostaglandin F2alpha (PGF2alpha) analogue cloprostenol, alone or in combination, was related to corpora lutea (CL) mRNA transcript abundance coding f...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/5.5.391
更新日期:1999-05-01 00:00:00
abstract::We recently identified the DPY19L2 gene as the main genetic cause of human globozoospermia. Non-genetically characterized cases of globozoospermia were associated with DNA alterations, suggesting that DPY19L2-dependent globozoospermia may be associated with poor DNA quality. However the origins of such defects have no...
journal_title:Molecular human reproduction
pub_type: 杂志文章
doi:10.1093/molehr/gau099
更新日期:2015-02-01 00:00:00