Direct evidence for the involvement of carbohydrate sequences in human sperm-zona pellucida binding.

abstract：:Mitochondrial DNA (mtDNA) deletions are present in both human oocytes and embryos. It has been found that these tissues contain a mtDNA mutation which is present in high amounts in patients with Kearns-Sayre syndrome (KSS) and progressive external ophthalmoplegia. In the present study, the frequency of this KSS deleti...

journal_title：Molecular human reproduction

authors： Brenner CA,Wolny YM,Barritt JA,Matt DW,Munné S,Cohen J

更新日期：1998-09-01 00:00:00

abstract：:Placental trophoblast cells are unique endocrine cells that play vital roles during the processes of embryonic implantation and placentation. However, research into the function of human trophoblast has been largely restrained mainly due to a lack of adequate cell models. A normal placenta-origin cytotrophoblast cell ...

journal_title：Molecular human reproduction

authors： Wang YL,Qiu W,Feng HC,Li YX,Zhuang LZ,Wang Z,Liu Y,Zhou JQ,Zhang DH,Tsao GS

更新日期：2006-07-01 00:00:00

abstract：:Idiopathic fetal growth restriction (FGR) is often associated with placental insufficiency. Previously, we isolated and characterized homeobox gene DLX4 from the placenta and provided evidence that DLX4 may regulate placental development. Here, we have investigated whether DLX4 expression levels were altered in idiopa...

journal_title：Molecular human reproduction

authors： Murthi P,Said JM,Doherty VL,Donath S,Nowell CJ,Brennecke SP,Kalionis B

更新日期：2006-12-01 00:00:00

abstract：:In early gestation, the human placental renin-angiotensin system (RAS) is upregulated and plays a role in placental development. Among other functions, signalling through the angiotensin II type 1 receptor (AT1R) initiates proliferation. Many microRNAs (miRNAs) targeting placental RAS mRNAs are downregulated at this t...

journal_title：Molecular human reproduction

authors： Arthurs AL,Lumbers ER,Pringle KG

更新日期：2019-04-01 00:00:00

abstract：:Interleukin (IL)-33, a newly described member of the IL-1 family, has been reported to facilitate primary tumor progression and metastatic dissemination. However, its biological function on decidual stromal cells (DSCs) remains unclear. In this study, we tested the hypothesis whether IL-33 promotes proliferation and i...

journal_title：Molecular human reproduction

authors： Hu WT,Li MQ,Liu W,Jin LP,Li DJ,Zhu XY

更新日期：2014-04-01 00:00:00

abstract：:To mimic post-ovulatory ageing, we have extended the in vitro maturation (IVM) phase to 48 h and examined effects on (i) developmental potential, (ii) expression of a panel of developmentally important genes and (iii) gene-specific epigenetic marks. Results were compared with the 24 h IVM protocol (control) usually em...

journal_title：Molecular human reproduction

authors： Heinzmann J,Mattern F,Aldag P,Bernal-Ulloa SM,Schneider T,Haaf T,Niemann H

更新日期：2015-10-01 00:00:00

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 th...

journal_title：Molecular human reproduction

authors： Teklenburg G,Salker M,Heijnen C,Macklon NS,Brosens JJ

更新日期：2010-12-01 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

authors： Osterlund C,Wramsby H,Pousette A

更新日期：1996-07-01 00:00:00

abstract：:Oocyte vitrification has been introduced into clinical settings without extensive pre-clinical safety testing. In this study, we analysed major safety aspects of human oocyte vitrification in a high security closed system: (i) chromosomal meiotic segregation, (ii) embryonic developmental kinetics and (iii) DNA (hydrox...

journal_title：Molecular human reproduction

authors： De Munck N,Petrussa L,Verheyen G,Staessen C,Vandeskelde Y,Sterckx J,Bocken G,Jacobs K,Stoop D,De Rycke M,Van de Velde H

更新日期：2015-06-01 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

authors： Xiao AZ,Zhao YG,Duan EK

更新日期：2002-07-01 00:00:00

abstract：STUDY HYPOTHESIS:In women with preterm premature rupture of the membranes (PPROM), increased oxidative stress may accelerate premature cellular senescence, senescence-associated inflammation and proteolysis, which may predispose them to rupture. STUDY FINDING:We demonstrate mechanistic differences between preterm birt...

journal_title：Molecular human reproduction

authors： Dutta EH,Behnia F,Boldogh I,Saade GR,Taylor BD,Kacerovský M,Menon R

更新日期：2016-02-01 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

authors： Depuydt CE,Zalata A,de Potter CR,van Emmelo J,Comhaire FH

更新日期：1996-01-01 00:00:00

abstract：:Gonadotrophins exert a major effect on ovarian development and on the control of fertilization. By stimulating cells with forskolin (FK), it is possible to study which genes are activated by gonadotrophins via the cAMP cascade, and which by alternative pathways. Using RNA isolated from stimulated cells, we found that ...

journal_title：Molecular human reproduction

authors： Sasson R,Rimon E,Dantes A,Cohen T,Shinder V,Land-Bracha A,Amsterdam A

更新日期：2004-05-01 00:00:00

abstract：:The requisite endpoint of mammalian oocyte maturation, whether in vivo or in vitro, is a metaphase II oocyte which is able to be fertilized and which can eventually support normal embryonic development. Oocytes which have been matured in vivo basically fulfill these criteria. On the other hand, a completely different ...

journal_title：Molecular human reproduction

authors： Fulka J Jr,First NL,Moor RM

更新日期：1998-01-01 00:00:00

abstract：:The involvement of protein kinases in platelet activating factor (PAF)-induced acrosome reaction of human spermatozoa was investigated using specific inhibitors of protein kinase A (PKA), protein kinase C (PKC) and protein tyrosine kinase (PTK). PAF (10(-9)-10(-11) M) treatment of spermatozoa enhanced the acrosome rea...

journal_title：Molecular human reproduction

authors： Sengoku K,Tamate K,Takuma N,Takaoka Y,Yoshida T,Nishiwaki K,Ishikawa M

更新日期：1996-06-01 00:00:00

abstract：:Testicular germ cell cancer is aetiologically linked to genital malformations and male infertility and is most probably caused by a disruption of embryonic programming and gonadal development during fetal life. In some cases, germ cell neoplasia is associated with a relative reduction of Y chromosomal material (e.g. 4...

journal_title：Molecular human reproduction

authors： Frydelund-Larsen L,Vogt PH,Leffers H,Schadwinkel A,Daugaard G,Skakkebaek NE,Rajpert-De Meyts E

更新日期：2003-09-01 00:00:00

abstract：:Cytogenetically, uterine leiomyomata are the best investigated human tumours. The most frequent clonal abnormalities are structural rearrangements involving 12q14-15 and deletions of part of the long arm of chromosome 7. The present study investigated a possible growth advantage conferred by these abnormalities, when ...

journal_title：Molecular human reproduction

authors： Hennig Y,Deichert U,Bonk U,Thode B,Bartnitzke S,Bullerdiek J

更新日期：1999-12-01 00:00:00

abstract：:Embryo implantation and subsequent decidualization, trophoblast invasion and formation of a functional placenta are crucial for establishment and maintenance of pregnancy. Interleukin-11 signalling has been shown to be obligatory for adequate decidualization and trophoblast invasion in mice. Defects in IL-11 signallin...

journal_title：Molecular human reproduction

authors： von Rango U,Alfer J,Kertschanska S,Kemp B,Müller-Newen G,Heinrich PC,Beier HM,Classen-Linke I

更新日期：2004-11-01 00:00:00

abstract：:Surfactant protein D (SP-D) plays a role in innate immunity against various pathogens and in vivo studies have demonstrated that SP-D also has anti-inflammatory properties. SP-D was originally demonstrated in alveolar type II cells, but recent studies have shown extrapulmonary expression of SP-D indicating a systemic ...

journal_title：Molecular human reproduction

authors： Leth-Larsen R,Floridon C,Nielsen O,Holmskov U

更新日期：2004-03-01 00:00:00

abstract：:We have previously reported that endometrial expression of matrix metalloproteinase (MMP)-26 mRNA comes to a maximum in the early secretory phase. Since tissue inhibitor of metalloproteinase (TIMP)-4 is a potent inhibitor of MMP-26, the objective of this study was to identify the pattern of TIMP-4 mRNA expression in t...

journal_title：Molecular human reproduction

authors： Pilka R,Domanski H,Hansson S,Eriksson P,Casslén B

更新日期：2004-09-01 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

authors： Flamini MI,Sanchez AM,Goglia L,Tosi V,Genazzani AR,Simoncini T

更新日期：2009-10-01 00:00:00

abstract：:Successful pregnancy in humans depends on deep invasion of the maternal decidua by extravillous trophoblast cells (EVTs), a process regulated by autocrine and paracrine signals in the decidual-trophoblast microenvironment. Here we examined whether trophoblast invasion is affected by decidual differentiation of endomet...

journal_title：Molecular human reproduction

authors： Gonzalez M,Neufeld J,Reimann K,Wittmann S,Samalecos A,Wolf A,Bamberger AM,Gellersen B

更新日期：2011-07-01 00:00:00

abstract：:We have entered a new era of genomics in biomedical research with the availability of genome-wide sequences and expression data, resulting in the identification of a huge number of novel reproductive genes. The challenge we are facing today is how to determine the function of those novel and known genes and their role...

journal_title：Molecular human reproduction

authors： Lee T,Shah C,Xu EY

更新日期：2007-11-01 00:00:00

abstract：:The expression of adhesion molecules and matrix proteins by human spermatozoa as well as their binding to and penetration of zona-free hamster eggs were investigated in 17 patients by means of flow cytometry. Both binding and penetration of hamster oocytes and expression of alpha- and beta-chains of beta 1, beta 3 and...

journal_title：Molecular human reproduction

authors： Henkel R,Schaller J,Glander HJ,Schill WB

更新日期：1996-05-01 00:00:00

abstract：:Artificial oocyte activation to overcome failed fertilization after intracytoplasmic sperm injection (ICSI) in human oocytes typically employs Ca(2+) ionophores to produce a single cytosolic Ca(2+) increase. In contrast, recombinant phospholipase Czeta (PLCζ) causes Ca(2+) oscillations indistinguishable from those occ...

journal_title：Molecular human reproduction

authors： Sanusi R,Yu Y,Nomikos M,Lai FA,Swann K

更新日期：2015-10-01 00:00:00

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

authors： Calogero AE,Hall J,Fishel S,Green S,Hunter A,D'Agata R

更新日期：1996-10-01 00:00:00

abstract：:During folliculogenesis, the gonadotrophin (GTH)-dependent phase begins at the small antral follicle stage and ends with Graafian follicles. In this study, pregnant mare's serum GTH was used to induce GTH-dependent folliculogenesis in mice, following which the developmental events that follicles undergo, as well as th...

journal_title：Molecular human reproduction

authors： Chen Y,Wang X,Yang C,Liu Q,Ran Z,Li X,He C

更新日期：2020-12-10 00:00:00

abstract：:In humans, the most common chromosomal abnormality is aneuploidy. Because the majority of aneuploid conceptuses die during the early stages of embryonic development, an accurate estimate of the frequency of aneuploidy at conception can only be assessed by directly studying the gametes. The vast majority of aneuploidie...

journal_title：Molecular human reproduction

authors： Templado C,Uroz L,Estop A

更新日期：2013-10-01 00:00:00

abstract：:Several laboratories have independently isolated mitotically active germ cells, termed female germline stem cells or oogonial stem cells (OSCs), from adult mouse ovaries. However, a recent study using Ddx4-Cre;Rosa26 reporter mice concluded that such germ cells do not exist. Given the disparity in conclusions drawn in...

journal_title：Molecular human reproduction

authors： Park ES,Tilly JL

更新日期：2015-01-01 00:00:00

abstract：:The process of sperm chromatin decondensation occurs when a spermatozoon enters an ovum. Protamine disulphide bonds are reduced to SH and the polycationic protamines combine with the polyanionic egg protein, nucleoplasmin, thus being stripped from DNA which then combines with histones. Defective chromatin decondensati...

journal_title：Molecular human reproduction

authors： Samocha-Bone D,Lewin LM,Weissenberg R,Madgar Y,Soffer Y,Shochat L,Golan R

更新日期：1998-02-01 00:00:00