RNA in the ejaculate spermatozoon: a window into molecular events in spermatogenesis and a record of the unusual requirements of haploid gene expression and post-meiotic equilibration.

abstract：:We purified by fractionation on 10-40% glycerol gradients, 26S proteasomes from normal human spermatozoa. These proteasomes, which participate in the ATP-dependent degradation of ubiquitinated proteins, share a similar sedimentation coefficient to those purified from other human tissues. Fluorogenic peptide assays rev...

journal_title：Molecular human reproduction

authors： Tipler CP,Hutchon SP,Hendil K,Tanaka K,Fishel S,Mayer RJ

更新日期：1997-12-01 00:00:00

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：:The distribution and size of a surface membrane antigen identified by a monoclonal antibody (MAC9393) have been examined in testicular and epididymal bovine sperm preparations. Western blots indicated a substantial decrease in molecular mass of the antigen during epididymal maturation from approximately 87 kDa in the ...

journal_title：Molecular human reproduction

authors： Howes EA,Hurst S,Laslop A,Jones R

更新日期：1998-07-01 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

authors： Izumi-Yoneda N,Toda A,Okabe M,Koike C,Takashima S,Yoshida T,Konishi I,Saito S,Nikaido T

更新日期：2009-01-01 00:00:00

abstract：:Prostaglandins (PGs) are important factors in the physiology of human parturition and the control of uterine contractility. We have characterized the expression of 15 genes from all stages of the PG pathway in human pregnant and non-pregnant (NP) myometrium and in other uterine tissues at delivery, and the results sho...

journal_title：Molecular human reproduction

authors： Phillips RJ,Al-Zamil H,Hunt LP,Fortier MA,López Bernal A

更新日期：2011-01-01 00:00:00

abstract：:The Drosophila melanogaster staufen gene encodes an RNA binding protein (Dm Stau) required for the localization and translational repression of mRNAs within the Drosophila oocyte. In mammals translational repression is important for normal spermatogenesis in males and storage of mRNAs in the oocytes of females. In the...

journal_title：Molecular human reproduction

authors： Saunders PT,Pathirana S,Maguire SM,Doyle M,Wood T,Bownes M

更新日期：2000-11-01 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：:A complete hydatidiform mole (CHM) is an abnormal pregnancy with hyperproliferative vesicular trophoblast and no fetal development. Most CHM are sporadic and androgenetic, but recurrent HM have biparental inheritance (BiHM) with disrupted DNA methylation at differentially methylated regions (DMRs) of imprinted loci. S...

journal_title：Molecular human reproduction

authors： Kou YC,Shao L,Peng HH,Rosetta R,del Gaudio D,Wagner AF,Al-Hussaini TK,Van den Veyver IB

更新日期：2008-01-01 00:00:00

abstract：STUDY QUESTION:Could a more detailed evaluation of marmoset spermatogonial morphology, kinetics and niches using high-resolution light microscopy (HRLM) lead to new findings? SUMMARY ANSWER:Three subtypes of marmoset undifferentiated spermatogonia, which were not evenly distributed in terms of number and position alon...

journal_title：Molecular human reproduction

authors： Caldeira-Brant AL,Eras-Garcia L,Alves-Freitas D,Almeida FRCL,Chiarini-Garcia H

更新日期：2018-06-01 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

authors： Wu W,Shi SQ,Huang HJ,Balducci J,Garfield RE

更新日期：2011-04-01 00:00:00

abstract：:Human sperm contain similar amounts of protamine-1 (P1) and protamine-2 (P2). Although an aberrant protamine ratio have been observed in subfertile men, functional evidence is provided by protamine knockout mice exhibiting male infertility. As sperm DNA integrity is known to be linked with DNA fragmentation and apopto...

journal_title：Molecular human reproduction

authors： Cavalcanti MC,Steilmann C,Failing K,Bergmann M,Kliesch S,Weidner W,Steger K

更新日期：2011-07-01 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

abstract：:Successful embryo implantation depends on the quality of the embryo, as well as on the receptivity of the endometrium. The aim of this study was to investigate the endometrial gene expression profile in women with unexplained infertility in comparison with fertile controls at the time of embryo implantation in order t...

journal_title：Molecular human reproduction

authors： Altmäe S,Martínez-Conejero JA,Salumets A,Simón C,Horcajadas JA,Stavreus-Evers A

更新日期：2010-03-01 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：:Tenascin-C is an extracellular matrix glycoprotein whose monomers include eight consecutive fibronectin type III-like repeats, encoded by exons 10-16, and which are subject to alternative splicing. Transcripts containing these exons are expressed during tissue wounding and active tissue remodelling. Human fetal membra...

journal_title：Molecular human reproduction

authors： Bell SC,Pringle JH,Taylor DJ,Malak TM

更新日期：1999-11-01 00:00:00

abstract：:Prostaglandin E2 (PGE2) plays a key role in the maintenance of human pregnancy and labour onset. PGE2 can elicit diverse actions within the uterus depending on the PGE2 receptors (EP1, EP2, EP3 and EP4) expressed. By signalling through different intracellular pathways the EP receptors may inhibit or promote smooth mus...

journal_title：Molecular human reproduction

authors： Astle S,Thornton S,Slater DM

更新日期：2005-04-01 00:00:00

abstract：:A molecule isolated from the peritoneal fluids of women undergoing laparoscopy for in-vitro fertilization techniques has been chemically characterized and identified as 1-palmitic-3-phosphorylcholine (lysophosphatidylcholine, LPC). This lipid is able, at physiological concentrations, to completely inhibit sperm motili...

journal_title：Molecular human reproduction

authors： Keller F,Togni G,Soldati G,Balmelli T,Medici G,Rose K,Balerna M

更新日期：1997-03-01 00:00:00

abstract：:The androgen receptor (AR) gene is located on the X chromosome and contains a polymorphic CAG tract. CAG repeat expansions in the AR have been associated with male infertility and the neuromuscular disease, spinal bulbar muscular atrophy (SBMA). Based on Mendelian inheritance patterns, moderate CAG expansions in infer...

journal_title：Molecular human reproduction

authors： Cram DS,Song B,McLachlan RI,Trounson AO

更新日期：2000-09-01 00:00:00

abstract：:Matrix metalloproteinases (MMP), tissue inhibitors of metalloproteinases (TIMP), and MMP-TIMP interactions may contribute to the highly programmed process of embryo implantation. The loss of the delicate MMP-TIMP balance may lead to abnormal implantation. The role of TIMP-4 in mouse implantation has not been reported....

journal_title：Molecular human reproduction

authors： Zhang J,Zhao YG,Cao YJ,Sang QX,Duan EK

更新日期：2003-03-01 00:00:00

abstract：:During pregnancy, a cervical connective tissue remodelling takes place, clinically recognized as softening, effacement and dilatation. The role of oestrogens and their receptors (ER) in this process is not clear. ERalpha is a ligand-activated transcription factor involved in many physiological processes. The identific...

journal_title：Molecular human reproduction

authors： Wang H,Stjernholm Y,Ekman G,Eriksson H,Sahlin L

更新日期：2001-03-01 00:00:00

abstract：:Mammalian sperm undergo a series of maturation steps before acquiring fertilization competence. Our previous work demonstrated the importance of binder of sperm (BSP) proteins in bovine sperm capacitation. Recent studies identified a BSP-homologous DNA sequence in the human genome (BSPH1) and mRNA expression in the ep...

journal_title：Molecular human reproduction

authors： Lefebvre J,Boileau G,Manjunath P

更新日期：2009-02-01 00:00:00

abstract：:Granzyme B (graB) plays a pivotal role in cytotoxic lymphocyte granule-mediated apoptosis through cleavage of intracellular proteins in target cells. Proteinase inhibitor-9 (PI-9) is a potent inhibitor of graB and is highly expressed in cytotoxic lymphocytes. Here, we show by immunohistochemistry that PI-9 is also abu...

journal_title：Molecular human reproduction

authors： Hirst CE,Buzza MS,Sutton VR,Trapani JA,Loveland KL,Bird PI

更新日期：2001-12-01 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：:Imprinted genes are characterized by expression of only one of the two alleles according to its inheritance from the mother or the father. This mono-allelic expression must arise from primary differential epigenetic modification of the parental alleles of the imprinted gene in the spermatozoon and the oocyte. Most of ...

journal_title：Molecular human reproduction

authors： Salpekar A,Huntriss J,Bolton V,Monk M

更新日期：2001-09-01 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

authors： Vásárhelyi B,Cseh A,Kocsis I,Treszl A,Györffy B,Rigó J Jr

更新日期：2006-01-01 00:00:00

abstract：:We report an improvement in the PGD test for fragile X syndrome (FXS). Recently, multiple displacement amplification (MDA) has been reported to yield large amounts of DNA from single cells. Taking into account this technique, we developed a new PGD test for FXS, enabling combined analysis of linked polymorphic markers...

journal_title：Molecular human reproduction

authors： Burlet P,Frydman N,Gigarel N,Kerbrat V,Tachdjian G,Feyereisen E,Bonnefont JP,Frydman R,Munnich A,Steffann J

更新日期：2006-10-01 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：STUDY QUESTION:What is the prevalence, reproducibility and biological significance of transcriptomic differences between sister blastomeres of the mouse 2-cell embryo? SUMMARY ANSWER:Sister 2-cell stage blastomeres are distinguishable from each other by mRNA analysis, attesting to the fact that differentiation starts ...

journal_title：Molecular human reproduction

authors： Casser E,Israel S,Schlatt S,Nordhoff V,Boiani M

更新日期：2018-07-01 00:00:00

abstract：:In recent years, the impact of sperm DNA damage on fertility has become an important issue. The different technologies developed to check sperm DNA fragmentation lead to the same conclusion: DNA damage negatively impacts upon reproductive processes. Oocyte DNA repair capacity is one of the cues to understanding embryo...

journal_title：Molecular human reproduction

authors： El-Mouatassim S,Bilotto S,Russo GL,Tosti E,Menezo Y

更新日期：2007-08-01 00:00:00

abstract：:Inhibin production has been demonstrated in malignant epithelial ovarian tumours, but secretion of inhibins by benign cystadenoma has not yet been reported. The present study evaluated the concentrations of inhibin A and inhibin B and the relationship with oestradiol and nitric oxide metabolites in fluid collected fro...

journal_title：Molecular human reproduction

authors： Reis FM,Faletti A,Luisi S,Bifulco G,Cauci S,Quadrifoglio F,Dor J,Petraglia F

更新日期：2000-12-01 00:00:00