Downregulation of protein kinase C by phorbol ester increases expression of epidermal growth factor receptors in transformed trophoblasts and amplifies human chorionic gonadotropin production.

abstract：INTRODUCTION:To study the relationship between 2-dimensional placental ultrasound measurements and maternal serum (MS) levels of biomarkers of placentation and in pregnancies presenting with an isolated abnormally high or low birthweight at term, without evidence of placental insufficiency. METHOD:We performed a popul...

journal_title：Placenta

authors： David AL,Jauniaux E

更新日期：2016-04-01 00:00:00

abstract：:The IPL/TSSC3 gene is expressed nearly exclusively from the maternal allele, and its protein product acts to limit placental growth in mice. This protein specifically marks Type II trophoblast in the labyrinthine layer of the mouse placenta. To investigate mouse-human homologies, we carried out immunohistochemistry wi...

journal_title：Placenta

authors： Saxena A,Frank D,Panichkul P,Van den Veyver IB,Tycko B,Thaker H

更新日期：2003-09-01 00:00:00

abstract：:Uptake and metabolism of adenosine by human placenta were studied using the single-circulation paired-tracer technique. When isolated cotyledons were perfused through the fetal (basal) circulation at mean pressures of 36 +/- 3.3 mmHg and mean flow rates of 6.6 +/- 0.3 ml/min the maximal [3H]adenosine uptake was 51.3 +...

journal_title：Placenta

authors： Acevedo CG,Rojas S,Ramirez M,Bravo I

更新日期：1995-10-01 00:00:00

abstract：AIMS:Myocardial structural and functional abnormalities are known to occur in fetuses of mothers with diabetes mellitus (FMDM). The main aim of this investigation was to explore the cardiovascular circulatory patterns in FMDM using a validated lumped computational model of the cardiovascular system. METHODS:This was a...

journal_title：Placenta

authors： Kulkarni A,Garcia-Cañadilla P,Khan A,Lorenzo JM,Beckerman K,Valenzuela-Alcaraz B,Cruz-Lemini M,Gomez O,Gratacos E,Crispi F,Bijnens B

更新日期：2018-03-01 00:00:00

abstract：:Uterine blood flow (UtBF) is a major regulator of transplacental fetal nutrient supply. The aim was to serially measure uterine blood flow from mid to late pregnancy in a paradigm of relatively late onset placental and fetal growth restriction. Singleton bearing adolescent dams was fed high (H) or control (C) nutrient...

journal_title：Placenta

authors： Wallace JM,Milne JS,Matsuzaki M,Aitken RP

更新日期：2008-08-01 00:00:00

abstract：:Wharton's jelly contains large amounts of hyaluronic acid, and glucosamine is an important constituent of this macromolecule. In order to evaluate the placental vascular effects of this aminosugar, small chorionic and stem villous arteries were dissected from placental specimens obtained at normal term vaginal deliver...

journal_title：Placenta

authors： Uldbjerg N,Allen J,Maigaard S,Forman A

更新日期：1987-07-01 00:00:00

abstract：:Human amniotic epithelium from patients with normal pregnancy (normal amniotic epithelium) and from patients with materno-fetal rhesus incompatibility has been examined under the light and electron microscope. In comparison with normal amniotic epithelium, the epithelium in rhesus incompatibility displays the followin...

journal_title：Placenta

authors： Wang T

更新日期：1981-01-01 00:00:00

abstract：OBJECTIVES:The epithelium of the human placenta comprises an inner cytotrophoblast (CT) which proliferates and fuses with the outer differentiated syncytiotrophoblast (ST). Turnover has been studied focussing on second and third trimester placentas but with a paucity of data describing the normal first trimester tropho...

journal_title：Placenta

authors： Bose P,Kadyrov M,Goldin R,Hahn S,Backos M,Regan L,Huppertz B

更新日期：2006-08-01 00:00:00

abstract：:Interactions between the highly invasive trophoblasts and the maternal uterine decidual extracellular matrix (ECM) are crucial in the determination of a successful pregnancy. Fibulin-5 (FBLN5) is a member of the fibulin family that alters cell adhesive and invasive properties and is expressed in human villous cytotrop...

journal_title：Placenta

authors： Winship A,Cuman C,Rainczuk K,Dimitriadis E

更新日期：2015-12-01 00:00:00

abstract：:Placentas and plasma from women with and without Chagas' disease and cultures of human placental villi with Trypanosoma cruzi, neuraminidase, phospholipase A2 and phospholipase C were analyzed in order to verify if the alterations in placental alkaline phosphatase (PLAP) enzyme activity are caused by T. cruzi as obser...

journal_title：Placenta

authors： Lin S,Sartori MJ,Mezzano L,de Fabro SP

更新日期：2005-11-01 00:00:00

abstract：BACKGROUND:The aim of this study was to determine whether DNA-associated micro-particles (MPs) in maternal plasma express fetal-derived human leukocyte antigen-G (HLA-G) or placental alkaline phosphatase (PLAP) and whether the levels differ between women with normotensive pregnancies and preeclampsia. METHODS:DNA-asso...

journal_title：Placenta

authors： Orozco AF,Jorgez CJ,Ramos-Perez WD,Popek EJ,Yu X,Kozinetz CA,Bischoff FZ,Lewis DE

更新日期：2009-10-01 00:00:00

abstract：INTRODUCTION:Women with adverse pregnancy outcomes (APOs) have excess risk of later life cardiovascular disease (CVD) perhaps related to an underlying high-risk vascular phenotype. We sought to determine if placental evidence of maternal malperfusion in uncomplicated pregnancies is associated with an increased risk of ...

journal_title：Placenta

authors： Hauspurg A,Redman EK,Assibey-Mensah V,Tony Parks W,Jeyabalan A,Roberts JM,Catov JM

更新日期：2018-12-15 00:00:00

abstract：INTRODUCTION:The limited cell number of primary trophoblasts and contamination of trophoblast cell lines promote us to develop a novel stable trophoblast cell line. METHOD OF STUDY:Primary trophoblast cells were isolated from first-trimester placenta and telomerase-induced immortalization was used to immortalize these...

journal_title：Placenta

authors： Liu H,Wang L,Wang Y,Zhu Q,Aldo P,Ding J,Mor G,Liao A

更新日期：2020-10-01 00:00:00

abstract：:Paracellular pathways in the haemotrichorial placenta of the rat were studied by electron microscopy using lanthanum hydroxide as an electron dense marker. Near term placentae were dually perfused in situ, adding lanthanum to the fetal perfusate. In some placentae outflow pressure on the fetal side was elevated (betwe...

journal_title：Placenta

authors： Kertschanska S,Stulcová B,Kaufmann P,Stulc J

更新日期：2000-09-01 00:00:00

abstract：INTRODUCTION:Notch signalling has been shown to control cytotrophoblast (CTB) proliferation, differentiation and motility suggesting that the conserved signalling pathway could be critical for human placental development. Since individual Notch receptors have not been elucidated, we herein investigated expression patte...

journal_title：Placenta

authors： Plessl K,Haider S,Fiala C,Pollheimer J,Knöfler M

更新日期：2015-04-01 00:00:00

abstract：:Bidirectional transplacental exchange characterizes human pregnancy. Cells exchanged between mother and fetus can durably persist as microchimerism and may have both short- and long-term consequences for the recipient. The amount, type, and persistence of microchimerism are influenced by obstetric characteristics, pre...

journal_title：Placenta

authors： Gammill HS,Harrington WE

更新日期：2017-12-01 00:00:00

abstract：INTRODUCTION:Chronic histiocytic intervillositis of unknown etiology (CIUE) is a rare placental lesion characterized by an intervillous mononuclear inflammatory infiltrate of maternal origin. Although the mechanism and origin of these lesions are currently not understood, they appear to be related to an immune conflict...

journal_title：Placenta

authors： Capuani C,Meggetto F,Duga I,Danjoux M,March M,Parant O,Brousset P,Aziza J

更新日期：2013-02-01 00:00:00

abstract：INTRODUCTION:Alterations of apoptosis are commonly associated with pregnancy complications and abortion. Modulation of apoptosis is a relevant feature of Toxoplasma gondii infection and it is related to parasite strain types. The aim of the present study was to evaluate the possible factors that are involved in the dif...

journal_title：Placenta

authors： Angeloni MB,Guirelli PM,Franco PS,Barbosa BF,Gomes AO,Castro AS,Silva NM,Martins-Filho OA,Mineo TW,Silva DA,Mineo JR,Ferro EA

更新日期：2013-11-01 00:00:00

abstract：:The trophoblastic and endodermal tissues of the guinea pig were cytophotometrically examined at two stages of development, either shortly after the primary trophoblastic giant cell layer had degenerated (Sansom and Hill, 1931) and the visceral yolk sac was starting to form (Kaufman and Davidoff, 1977) (c. 10.5 days p....

journal_title：Placenta

authors： Ilgren EB

更新日期：1981-10-01 00:00:00

abstract：:The hormone leptin (OB) and its receptor (OB-R) are key homeostatic regulators of mammalian body weight. Two predominant isoforms of OB-R are expressed by alternative splicing: the long form, OB-RL, with full signalling capacity is highly expressed in the hypothalamus and the short, signalling-defective form, OB-Rs, i...

journal_title：Placenta

authors： Ebenbichler CF,Kaser S,Laimer M,Wolf HJ,Patsch JR,Illsley NP

更新日期：2002-07-01 00:00:00

abstract：:Hypertension is one of the major clinical manifestations of preeclampsia. Vascular dysfunction is crucial for the occurrence and progression of hypertension. Exosomes are emerging as mediators of intercellular communication and can participate in angiogenesis. In this study, we hypothesize that umbilical cord plasma-d...

journal_title：Placenta

authors： Ying X,Zhu Y,Jin X,Chang X

更新日期：2020-10-20 00:00:00

abstract：BACKGROUND:Dietrich Starck (1908-2001) was a German embryologist who wrote extensive reviews on comparative placentation. FINDINGS:Starck's embryology textbook and his comprehensive review of comparative embryology and placentation give excellent insights into the foundational literature and are extensively referenced...

journal_title：Placenta

authors： Carter AM

更新日期：2017-10-01 00:00:00

abstract：:Parathyroid hormone-related protein (PTHrP), the major factor responsible for hypercalcaemia of malignancy, is widely expressed in normal adult and fetal tissues. In this study, the distribution of PTHrP was examined in human term placenta and membranes by immunohistochemistry using antisera to PTHrP 1-34 and 37-67. P...

journal_title：Placenta

authors： Emly JF,Gregory J,Bowden SJ,Ahmed A,Whittle MJ,Rushton DI,Ratcliffe WA

更新日期：1994-09-01 00:00:00

abstract：:The mechanism of iron release from the placenta into the fetal circulation is not well understood. Ceruloplasmin, a plasma ferroxidase, has been implicated in iron efflux from a variety of cell types. The hypothesis is that circulating ceruloplasmin facilitates iron efflux by oxidizing the released Fe(II) to Fe(III) f...

journal_title：Placenta

authors： Danzeisen R,Ponnambalam S,Lea RG,Page K,Gambling L,McArdle HJ

更新日期：2000-11-01 00:00:00

abstract：:Dietary taurine is essential for cats and deficiency during pregnancy may lead to abortion, growth restriction or impaired neurological function of kittens. We previously described Na(+)- and Cl(-)-dependent taurine transport by system beta in fragments of freshly isolated cat placenta [Champion EE, Bailey SJ, Glazier...

journal_title：Placenta

authors： Champion EE,Mann SJ,Glazier JD,Jones CJ,Rawlings JM,Sibley CP,Greenwood SL

更新日期：2005-09-01 00:00:00

abstract：:Antigenic material previously detected in human placental trophoblastic cells by immunoperoxidase staining using a goat antiserum against the feline RD114 retrovirus structural protein p30 was isolated by immunochromatography from normal syncytiotrophoblast. The antigen was used to immunize mice, and of the monoclonal...

journal_title：Placenta

authors： Wahlström T,Nieminen P,Närvänen A,Suni J,Lehtovirta P,Saksela E,Vaheri A

更新日期：1984-11-01 00:00:00

abstract：:Studies in primary human trophoblasts provide critical insights into placental function in normal and complicated pregnancies. Mechanistic studies in these cells require experimental tools to modulate gene expression. Lipid-based methods to transfect primary trophoblasts are fairly simple to use and allow for the effi...

journal_title：Placenta

authors： Rosario FJ,Sadovsky Y,Jansson T

更新日期：2012-10-01 00:00:00

abstract：:Two groups of placentae from 18 cases of maternal rubella were examined morphologically and virologically. Placentae in Group I (four cases) had a mean gestational age of 21 +/- 1.9 weeks, whilst those in Group 2 (14 cases) had a mean gestational age of 38 +/- 2.8 weeks. A tendency to hypoplasia was observed. The micr...

journal_title：Placenta

authors： Garcia AG,Marques RL,Lobato YY,Fonseca ME,Wigg MD

更新日期：1985-07-01 00:00:00

abstract：:In view of the pathological placental features of pre-eclampsia and intrauterine growth restriction (IUGR), and the angiogenic effects of vascular endothelial growth factor (VEGF), the aim of this study was to determine the expression of VEGF in placentae from normal pregnancies and to compare the results with placent...

journal_title：Placenta

authors： Lyall F,Young A,Boswell F,Kingdom JC,Greer IA

更新日期：1997-05-01 00:00:00

abstract：:The dynamics of nickel (Ni) uptake, transfer, retention and clearance in fetuses and late gestational rats were investigated by assessing its distributions in placenta, maternal and fetal organs and tissues during the 24 h period after a single dose of (63)Ni intraperitoneal injection on gestational day 20. Peak (63)N...

journal_title：Placenta

authors： Hou YP,Gu JY,Shao YF,Song YF,Jing YH,Wu WS,Pu S

更新日期：2011-03-01 00:00:00