Mitochondrial DNA rearrangements in human oocytes and embryos.

abstract：:In the interest of classifying cases of male factor infertility, we have paid particular attention to the sugar ligand binding properties of the human sperm surface and the functional capacity of the acrosome for exocytosis--key parameters for assessing sperm fertilizing ability. Zona recognition and binding involve t...

journal_title：Molecular human reproduction

authors： Benoff S,Hurley IR,Mandel FS,Cooper GW,Hershlag A

更新日期：1997-10-01 00:00:00

abstract：STUDY QUESTION:Can enzymatically dispersed testicular cells from adult men reassemble into seminiferous cord-like structures in vitro? SUMMARY ANSWER:Adult human testicular somatic cells reassembled into testicular cord-like structures via dynamic interactions of Sertoli and peritubular cells. WHAT IS KNOWN ALREADY:I...

journal_title：Molecular human reproduction

authors： Mincheva M,Sandhowe-Klaverkamp R,Wistuba J,Redmann K,Stukenborg JB,Kliesch S,Schlatt S

更新日期：2018-02-01 00:00:00

abstract：:We have developed a competitive reverse transcription-polymerase chain reaction (RT-PCR) sensitive enough to detect and quantify as little as 2-fold differences in gene expression in individual oocytes and embryos throughout human preimplantation development. This RT-PCR assay can be tailored for the examination of an...

journal_title：Molecular human reproduction

authors： Taylor DM,Handyside AH,Ray PF,Dibb NJ,Winston RM,Ao A

更新日期：2001-02-01 00:00:00

abstract：:Recombinant human ZP3 (rhuZP3) generated by Chinese hamster ovary cells transfected with a plasmid containing human ZP3 cDNA was used to study the acrosome reaction (AR) and intracellular calcium fluxes in capacitated human spermatozoa. Conditioned medium containing rhuZP3 significantly induced the AR (P < or = 0.005)...

journal_title：Molecular human reproduction

authors： Brewis IA,Clayton R,Barratt CL,Hornby DP,Moore HD

更新日期：1996-08-01 00:00:00

abstract：STUDY QUESTION:Is oxidative stress associated with the A disintegrin and metalloproteases (ADAM) metallopeptidase domain 17 (ADAM17)/Notch signalling pathway and fibrosis in the development of endometriosis? SUMMARY ANSWER:Oxidative stress is correlated with hyperactivation of the ADAM17/Notch signalling pathway and a...

journal_title：Molecular human reproduction

authors： González-Foruria I,Santulli P,Chouzenoux S,Carmona F,Chapron C,Batteux F

更新日期：2017-07-01 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：STUDY QUESTION:Can a pre-in vitro maturation (pre-IVM) medium containing signaling molecules rather than chemical/pharmaceutical agents, sustain meiotic arrest and improve developmental competence of in vitro matured oocytes in CF1 outbred mice? SUMMARY ANSWER:A short 2 h period of pre-IVM prevents spontaneous meiotic...

journal_title：Molecular human reproduction

authors： Santiquet NW,Greene AF,Becker J,Barfield JP,Schoolcraft WB,Krisher RL

更新日期：2017-09-01 00:00:00

abstract：:Sperm experience intense and varied selection that dramatically impacts the evolution of sperm quality. Selection acts to ensure that sperm are fertilization-competent and able to overcome the many challenges experienced on their way towards eggs. However, simply being able to fertilize an egg is not enough to ensure ...

journal_title：Molecular human reproduction

authors： Fitzpatrick JL,Lüpold S

更新日期：2014-12-01 00:00:00

abstract：:The aetiology of cryptorchidism is for the most part unknown and appears to be multifactorial. Recently, a product of Leydig cells termed Leydig insulin-like hormone (INSL3) has been proposed as a putative trophic hormone of the first part of descent. Absence of Insl3 in male mice results in bilateral cryptorchidism a...

journal_title：Molecular human reproduction

authors： Krausz C,Quintana-Murci L,Fellous M,Siffroi JP,McElreavey K

更新日期：2000-04-01 00:00:00

abstract：:Human chromosome deletions in Yq11 seem to occur frequently as de novo mutation events in men with idiopathic azoospermia or severe oligozoospermia. However, the molecular extensions of these deletions are variable. They can be large and therefore visible under the microscope or small, not visible under the microscope...

journal_title：Molecular human reproduction

authors： Vogt PH

更新日期：1998-08-01 00:00:00

abstract：:Follicular development and ovulation are major processes in the reproductive system. Understanding their complexity is important to female fertility treatments and the control of reproductive processes. Wnt signaling pathway components were shown to be involved in reproduction in animal models. The secreted frizzled-r...

journal_title：Molecular human reproduction

authors： Maman E,Yung Y,Cohen B,Konopnicki S,Dal Canto M,Fadini R,Kanety H,Kedem A,Dor J,Hourvitz A

更新日期：2011-07-01 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

authors： Weng SL,Taylor SL,Morshedi M,Schuffner A,Duran EH,Beebe S,Oehninger S

更新日期：2002-11-01 00:00:00

abstract：:Mammalian sperm chromatin is highly condensed, so isolating DNA from such chromatin can be a formidable task. The procedures that produce high quality DNA from somatic cells fail to yield quality sperm DNA. In this study we have modified the previously used guanidinium method to make it simple and efficient in isolati...

journal_title：Molecular human reproduction

authors： Hossain AM,Rizk B,Behzadian A,Thorneycroft IH

更新日期：1997-11-01 00:00:00

abstract：:Follicular fluid proteoglycans play an important role in human oocyte maturation, including the development of a fluid-filled compartment and maintenance of the hypocoagulative state of the follicular fluid. Human xylosyltransferase (EC 2.4.2.26, XT) is the key enzyme in the biosynthesis of glycosaminoglycan chains in...

journal_title：Molecular human reproduction

authors： Götting C,Kuhn J,Tinneberg HR,Brinkmann T,Kleesiek K

更新日期：2002-12-01 00:00:00

abstract：:Morphological assessments are the main way in which fertility clinics select in vitro generated embryo(s) for transfer to the uterus. However, it is widely acknowledged that the microscopic appearance of an embryo is only weakly correlated with its viability. Furthermore, the extent to which morphology is affected by ...

journal_title：Molecular human reproduction

authors： Fragouli E,Alfarawati S,Spath K,Wells D

更新日期：2014-02-01 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：:The two estrogen receptors, ERalpha and ERbeta, are likely to have roles in the pathophysiology of fibroid development. They have been detected in myometrial and leiomyoma (fibroid) tissue, but the cell types expressing ERalpha and ERbeta have not been determined. ERs have also been detected in human endothelial cells...

journal_title：Molecular human reproduction

authors： Gargett CE,Bucak K,Zaitseva M,Chu S,Taylor N,Fuller PJ,Rogers PA

更新日期：2002-08-01 00:00:00

abstract：:Preimplantation development shifts from a maternal to embryonic programme rapidly after fertilization. Although the majority of oogenetic products are lost during the maternal to embryonic transition (MET), several do survive this interval to contribute directly to supporting preimplantation development. Embryonic gen...

journal_title：Molecular human reproduction

authors： Bell CE,Calder MD,Watson AJ

更新日期：2008-12-01 00:00:00

abstract：:Vascular endothelial growth factor (VEGF) is relevant for normal pregnancy, and abnormalities in VEGF functions are associated with hypertensive disorders of pregnancy. Because there are few studies on how VEGF genetic polymorphisms affect susceptibility to pre-eclampsia (PE), and no studies on how they affect suscept...

journal_title：Molecular human reproduction

authors： Sandrim VC,Palei AC,Cavalli RC,Araújo FM,Ramos ES,Duarte G,Tanus-Santos JE

更新日期：2009-02-01 00:00:00

abstract：:Commercial hMG drugs are marketed for the treatment of infertility and consist of highly purified hormones acting on receptors expressed in target gonadal cells. Menopur® and Meriofert® are combined preparation of FSH and hCG and are compared in vitro herein. To this purpose, the molecular composition of the two drugs...

journal_title：Molecular human reproduction

authors： Casarini L,Riccetti L,Paradiso E,Benevelli R,Lazzaretti C,Sperduti S,Melli B,Tagliavini S,Varani M,Trenti T,Morini D,Falbo A,Villani MT,Jonas KC,Simoni M

更新日期：2020-12-10 00:00:00

abstract：:In women with premature ovarian failure, fertility may be preserved by ovarian tissue culture in vitro. However, techniques for tissue culture and follicle maturation have remained suboptimal. Our aim was to characterize ovarian tissue degeneration in cultures and to establish a model for cell death research in cultur...

journal_title：Molecular human reproduction

authors： Otala M,Erkkilä K,Tuuri T,Sjöberg J,Suomalainen L,Suikkari AM,Pentikäinen V,Dunkel L

更新日期：2002-03-01 00:00:00

abstract：:We compared latent TGF-ss binding protein-1 (LTBP-1) and fibrillin-1 (FBN-1) expression in leiomyomata and myometrium, correlated with leiomyomata size. We studied in vivo and in vitro effects of ovarian steroids using matched leiomyomata and myometrium samples from both phases of the menstrual cycle. Leiomyomata were...

journal_title：Molecular human reproduction

authors： Zhao Y,Wen Y,Polan ML,Qiao J,Chen BH

更新日期：2007-05-01 00:00:00

abstract：:Pregnancy-associated plasma protein-A and -A2 (PAPP-A and -A2) are proteases that cleave insulin-like growth factor-binding proteins (IGFBPs), resulting in local activation of IGF signaling pathways. Here, we examined PAPP-A and -A2 mRNA and protein levels in placenta and maternal sera from women with pre-eclampsia an...

journal_title：Molecular human reproduction

authors： Nishizawa H,Pryor-Koishi K,Suzuki M,Kato T,Kogo H,Sekiya T,Kurahashi H,Udagawa Y

更新日期：2008-10-01 00:00:00

abstract：:In mammals, egg activation is initiated by multiple cytosolic Ca(2+) transients (Ca(2+) oscillations) that are triggered following delivery of a putative sperm factor from the fertilizing sperm. The identity of this 'sperm factor' thus holds much significance, not only as a vital component in creating a new life, but ...

journal_title：Molecular human reproduction

authors： Kashir J,Nomikos M,Swann K,Lai FA

更新日期：2015-05-01 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：: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：:Tyrosine nitration is a widely used marker of peroxynitrite (ONOO-) produced from the reaction of nitric oxide (NO.) with superoxide (O2(.-)). Since human spermatozoa are able to produce both NO. and O2(.-) during capacitation in vitro, we investigated whether spontaneous tyrosine nitration of proteins occurs in human...

journal_title：Molecular human reproduction

authors： Herrero MB,de Lamirande E,Gagnon C

更新日期：2001-10-01 00:00:00

abstract：:Acrosome status in human spermatozoa from 20 normozoospermic men was evaluated by flow cytometry following the induction of the acrosome reaction with the ionophore A23187. Dual fluorescence staining of methanol fixed spermatozoa incubated with and without (control) the ionophore A23187 was performed with probes which...

journal_title：Molecular human reproduction

authors： Nikolaeva MA,Golubeva EL,Kulakov VI,Sukhikh GT

更新日期：1998-03-01 00:00:00

abstract：:The human endometrium is a cyclically regenerating organ under the influence of ovarian steroid hormones. Disturbances in this highly coordinated regulation of endometrial proliferation and differentiation may result in infertility and diseases such as endometriosis and endometrial cancer. Environmental toxins belongi...

journal_title：Molecular human reproduction

authors： Willing C,Peich M,Danescu A,Kehlen A,Fowler PA,Hombach-Klonisch S

更新日期：2011-02-01 00:00:00

abstract：STUDY QUESTION:Does A20 regulate mediators involved in the terminal processes of human labour in primary myometrial and amnion cells? SUMMARY ANSWER:A20 is a nuclear factor-kappa B (NF-κB) responsive gene that acts as a negative regulator of NF-κB-induced expression of pro-labour mediators. WHAT IS KNOWN ALREADY:Infl...

journal_title：Molecular human reproduction

authors： Lappas M

更新日期：2017-09-01 00:00:00