Membrane potential and input resistance in syncytiotrophoblast of human term placenta in vitro.

Abstract:

:Direct measurements of electrical potential and input resistance were performed on the syncytial membrane facing maternal blood. The potentials varied according to the external potassium ion levels and, to a lesser extent, with sodium ion concentrations. Ouabain provoked a rapid and consistent depolarization which indicates an electrogenic component. Amiloride slightly hyperpolarized the membrane, confirming the predominant role of potassium ions in the control of the diffusional component of the membrane potential. The electrical potential revealed in this study might play a part in the maternofetal transport of ions.

journal_name

Placenta

journal_title

Placenta

authors

Bara M,Challier JC,Guiet-Bara A

doi

10.1016/0143-4004(88)90012-4

subject

Has Abstract

pub_date

1988-03-01 00:00:00

pages

139-46

issue

2

eissn

0143-4004

issn

1532-3102

pii

0143-4004(88)90012-4

journal_volume

9

pub_type

杂志文章

相关文献

PLACENTA文献大全
  • Maternal and fetal cellular relationships in the human placental basal plate.

    abstract::Maternal and fetal cellular relationships in the normal human term placental basal plate were investigated by single and double immunohistochemical labelling techniques. Extravillous fetal trophoblast in the basal plate was uniformly reactive with markers of low-molecular-weight cytokeratins. The predominant maternal ...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/0143-4004(88)90031-8

    authors: Bulmer JN,Smith J,Morrison L,Wells M

    更新日期:1988-05-01 00:00:00

  • Klf14 is an imprinted transcription factor that regulates placental growth.

    abstract:INTRODUCTION:Imprinted genes are preferentially expressed from one parentally inherited allele, and many are crucial to the regulation of placental function and fetal growth. Murine Krüppel-like factor 14 (Klf14) is a maternally expressed imprinted transcription factor that is a component of the Mest imprinted gene clu...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2019.09.013

    authors: Koppes E,Shaffer B,Sadovsky E,Himes K,Barak Y,Sadovsky Y,Chaillet JR

    更新日期:2019-12-01 00:00:00

  • Placental ultrasonographic biochemical and histochemical studies in human fetuses affected with Niemann-Pick disease type A.

    abstract::Placental ultrasonographic, bio- and histochemical studies were performed on four unrelated fetuses affected with Niemann-Pick disease Type A, following prostaglandin-induced abortion at about the 19th week of gestation. An accumulation of sphingomyelin in the placentae of affected fetuses indicates the essential role...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/s0143-4004(85)80030-8

    authors: Schoenfeld A,Abramovici A,Klibanski C,Ovadia J

    更新日期:1985-01-01 00:00:00

  • Identification of triploidy by DA/DAPI staining of trophoblastic interphase nuclei.

    abstract::Combined staining of non-cultured interphase nuclei from hydatidiform moles with distamycin A and DAPI resulted in the presence of specific stained interphase bodies. A mean number of six interphase bodies was observed in moles with a diploid karyotype and a mean number of nine interphase bodies was observed in triplo...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/s0143-4004(85)80046-1

    authors: Tommerup N,Vejerslev LO

    更新日期:1985-07-01 00:00:00

  • Impact of placental growth factor deficiency on early mouse implant site angiogenesis.

    abstract::Effects of placental growth factor (PGF), an angiokine product of fetal trophoblasts and maternal decidual cells, on early decidual angiogenesis are undefined. We used whole-mount immunofluorescence analyses to compare uterus and gestation day 4.5-9.5 mouse implantation sites that differed genetically in fetal or mate...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2014.07.006

    authors: Rätsep MT,Carmeliet P,Adams MA,Croy BA

    更新日期:2014-09-01 00:00:00

  • Morphometric studies on villi in human term placentae and the effects of altitude, ethnic grouping and sex of newborn.

    abstract::Stereological methods were used to test whether or not altitudinal, ethnic and sex differences in birthweight in Bolivia are associated with differences in placental morphology. Estimates of the volumes, surface areas, lengths and diameters of villi and of fetal capillaries were obtained by analysing paraffin sections...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/0143-4004(87)90077-4

    authors: Jackson MR,Mayhew TM,Haas JD

    更新日期:1987-09-01 00:00:00

  • Maternal high-fat diet sex-specifically alters placental morphology and transcriptome in rats: Assessment by next-generation sequencing.

    abstract:INTRODUCTION:Maternal nutrition is an extremely important health issue. We evaluated the impact of maternal high fat diet (HFD) on pregnancy outcomes, elucidated how the rat placenta and fetus respond to diet manipulation based on fetal sex, and identified candidate genes and pathways. METHODS:Rats were fed a normal o...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2019.03.004

    authors: Lin YJ,Huang LT,Tsai CC,Sheen JM,Tiao MM,Yu HR,Lin IC,Tain YL

    更新日期:2019-03-01 00:00:00

  • Lack of activation of peripheral blood dendritic cells in human pregnancies complicated by intrauterine growth restriction.

    abstract:INTRODUCTION:The state of activation of dendritic cells (DCs) at the feto-maternal interface critically contributes to optimal decidual immune responses needed to support fetal-placental development. We recently demonstrated that during healthy pregnancy also peripheral blood DCs (PBDCs), which are easily accessible, a...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2012.10.016

    authors: Cappelletti M,Giannelli S,Martinelli A,Cetin I,Colombo E,Calcaterra F,Mavilio D,Della Bella S

    更新日期:2013-01-01 00:00:00

  • Involvement of EAT/mcl-1, a bcl-2 related gene, in the apoptotic mechanisms underlying human placental development and maintenance.

    abstract::The EAT/mcl-1 gene was isolated during the early differentiation of a retinoic acid-induced human embryonal carcinoma cell line to the trophectoderm lineage. EAT/mcl-1, a bcl-2 related gene, is involved in the genetic pathway of apoptosis; this suggests a role for apoptosis and the involvement of this gene in early pl...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1053/plac.1999.0458

    authors: Suzuki A,Umezawa A,Sano M,Nozawa S,Hata J

    更新日期:2000-03-01 00:00:00

  • Secretory phospholipases and membrane polishing.

    abstract::Although secretory phospholipase A2 (PLA2) isozymes have been identified in human gestational tissues, their role in homeostasis and pathophysiology during pregnancy has yet to be clearly established. The aims of this brief commentary are: (1) to review recent data concerning the expression of secretory PLA2 isozymes ...

    journal_title:Placenta

    pub_type: 杂志文章,评审

    doi:10.1016/s0143-4004(98)90093-5

    authors: Rice GE

    更新日期:1998-01-01 00:00:00

  • Accelerated expression of Ca antigen by placental villous trophoblast in pre-eclampsia.

    abstract::The Ca antigen is expressed by a range of normal tissues, as well as by many malignant neoplasms. The former includes placental villous syncytiotrophoblast where it appears first on syncytial sprouts at 20 weeks gestation, and progressively becomes more intensely and widely expressed on the surface of the trophoblast ...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/s0143-4004(05)80194-8

    authors: Bishop PW,Malam JE,Morris JA,Fox H

    更新日期:1990-11-01 00:00:00

  • Doppler evaluation of the effects of propofol, etomidate and alphaxalone on fetoplacental circulation hemodynamics in the pregnant ewe.

    abstract:INTRODUCTION:Umbilical artery (UA) hemodynamics reflect blood flow and vascular resistance in the placental circulation. We examined non-invasively the hemodynamic effects of propofol, etomidate, and alphaxalone on the placental circulation of a sheep model by means of UA Doppler ultrasonography. METHODS:Eleven sheep ...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2013.06.301

    authors: Domínguez E,Rivera Del Álamo MM,Novellas R,Espada Y,Santos L,García F,Andaluz A,Fresno L

    更新日期:2013-09-01 00:00:00

  • Differential apoptosis in BeWo cells after infection with highly (RH) or moderately (ME49) virulent strains of Toxoplasma gondii is related to the cytokine profile secreted, the death receptor Fas expression and phosphorylated ERK1/2 expression.

    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

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2013.09.005

    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

  • Effect of heme oxygenase-1 deficiency on placental development.

    abstract::Heme oxygenase (HO) is the rate-limiting enzyme in the heme catabolic pathway and highly expressed in the placenta. Deficiencies in HO-1, the inducible isoform, have been associated with pregnancy disorders, such as recurrent miscarriages, intrauterine growth retardation, and pre-eclampsia. The aim of this study was t...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2009.07.012

    authors: Zhao H,Wong RJ,Kalish FS,Nayak NR,Stevenson DK

    更新日期:2009-10-01 00:00:00

  • The evolving placenta: convergent evolution of variations in the endotheliochorial relationship.

    abstract::Endotheliochorial placentas occur in orders from all four major clades of eutherian mammal. Species with this type of placenta include one of the smallest (pygmy shrew) and largest (African elephant) land mammals. The endotheliochorial placenta as a definitive form has an interhemal area consisting of maternal endothe...

    journal_title:Placenta

    pub_type: 杂志文章,评审

    doi:10.1016/j.placenta.2012.02.008

    authors: Enders AC,Carter AM

    更新日期:2012-05-01 00:00:00

  • The effect of maternal hypoaminoacidaemia on placental uptake and transport of amino acids in pregnant sheep.

    abstract::We developed a model of maternal hyperglycaemia with secondary hyperinsulinaemia and hypoaminoacidaemia in pregnant sheep (H) to determine the effect of these conditions on uterine, uteroplacental and fetal amino-acid uptake rates and fetal amino-acid concentrations [AA]. Results were compared with normal pregnant ewe...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1053/plac.2000.0610

    authors: Thureen PJ,Padbury JF,Hay WW Jr

    更新日期:2001-02-01 00:00:00

  • Placental mitochondrial DNA copy number is associated with reduced birth weight in women with placental malaria.

    abstract::Placental malaria (PM) causes placental insufficiency, leading to reduced birth weight (BW). Placental mtDNA copy number (mtDNA-CN) and relative telomere length (RTL) have been described as potential biomarkers for placental insufficiency and intrauterine growth restriction (IUGR). We investigated their associations w...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2019.03.005

    authors: Oktavianthi S,Fauzi M,Trianty L,Trimarsanto H,Bowolaksono A,Noviyanti R,Malik SG

    更新日期:2019-05-01 00:00:00

  • Infertility as a cancer risk factor - a review.

    abstract::Ovarian, endometrial and breast cancers are associated with several risk factors, such as low parity, infertility, early age at menarche, and late age at menopause. Frequently most of these risk factors coexist in infertile patients and some studies suggested that the different infertility causes can be involved in ca...

    journal_title:Placenta

    pub_type: 杂志文章,评审

    doi:10.1016/j.placenta.2008.08.007

    authors: Cetin I,Cozzi V,Antonazzo P

    更新日期:2008-10-01 00:00:00

  • Variation of DNA methylation in candidate age-related targets on the mitochondrial-telomere axis in cord blood and placenta.

    abstract:BACKGROUND:Epigenetics is tissue-specific and potentially even cell-specific, but little information is available from human reproductive studies about the concordance of DNA methylation patterns in cord blood and placenta, as well as within-placenta variations. We evaluated methylation levels at promoter regions of ca...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2014.06.371

    authors: Janssen BG,Byun HM,Cox B,Gyselaers W,Izzi B,Baccarelli AA,Nawrot TS

    更新日期:2014-09-01 00:00:00

  • Human placenta: a human organ for developmental toxicology research and biomonitoring.

    abstract::Pregnant mothers are exposed to a wide variety of foreign chemicals. This exposure is most commonly due to maternal medication, lifestyle factors, such as smoking, drug abuse, and alcohol consumption, or occupational and environmental sources. Foreign compounds may interfere with placental functions at many levels e.g...

    journal_title:Placenta

    pub_type: 杂志文章,评审

    doi:10.1016/j.placenta.2004.09.006

    authors: Myllynen P,Pasanen M,Pelkonen O

    更新日期:2005-05-01 00:00:00

  • Air pollution and pre-eclampsia; associations and potential mechanisms.

    abstract:INTRODUCTION:Air pollution has significant negative health impacts, particularly on the cardiovascular system. The aims of this narrative review were to identify whether there is an association between air pollution and the incidence of pre-eclampsia, and the potential mechanisms by which any effects may be mediated. ...

    journal_title:Placenta

    pub_type: 杂志文章,评审

    doi:10.1016/j.placenta.2020.12.009

    authors: Bearblock E,Aiken CE,Burton GJ

    更新日期:2020-12-18 00:00:00

  • Carbon monoxide attenuates bacteria-induced Endothelin-1 expression in second trimester placental explants.

    abstract:INTRODUCTION:The pro-inflammatory mediator and potent vasoconstrictor Endothelin-1 (ET-1) is known to be expressed in the placenta. We have recently demonstrated that very low, non-toxic doses of carbon monoxide (CO), prevented infection-induced preterm birth in mice. However the effect(s) of CO on human gestational ti...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2014.03.015

    authors: Olgun NS,Arita Y,Hanna M,Murthy A,Tristan S,Peltier MR,Hanna N

    更新日期:2014-06-01 00:00:00

  • Altered maternal and placental lipid metabolism and fetal fat development in obesity: Current knowledge and advances in non-invasive assessment.

    abstract::Abnormal maternal lipid profiles, a hallmark of increased maternal adiposity, are associated with pregnancy complications such as preeclampsia and gestational diabetes, and offspring long-term metabolic health is impacted as the consequence of altered fetal growth, physiology and often iatrogenic prematurity. The meta...

    journal_title:Placenta

    pub_type: 杂志文章,评审

    doi:10.1016/j.placenta.2018.05.011

    authors: Delhaes F,Giza SA,Koreman T,Eastabrook G,McKenzie CA,Bedell S,Regnault TRH,de Vrijer B

    更新日期:2018-09-01 00:00:00

  • Comparing human and macaque placental transcriptomes to disentangle preterm birth pathology from gestational age effects.

    abstract:INTRODUCTION:A major issue in the transcriptomic study of spontaneous preterm birth (sPTB) in humans is the inability to collect healthy control tissue at the same gestational age (GA) to compare with pathologic preterm tissue. Thus, gene expression differences identified after the standard comparison of sPTB and term ...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2016.03.006

    authors: Eidem HR,Rinker DC,Ackerman WE 4th,Buhimschi IA,Buhimschi CS,Dunn-Fletcher C,Kallapur SG,Pavličev M,Muglia LJ,Abbot P,Rokas A

    更新日期:2016-05-01 00:00:00

  • Ultrastructure of placental hyperplasia in mice: comparison of placental phenotypes with three different etiologies.

    abstract::Hyperplastic placentas have been reported in several experimental mouse models, including animals produced by somatic cell nuclear transfer, by inter(sub)species hybridization, and by somatic cytoplasm introduction to oocytes followed by intracytoplasmic sperm injection. Of great interest are the gross and histologica...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2008.05.008

    authors: Wakisaka N,Inoue K,Ogonuki N,Miki H,Sekita Y,Hanaki K,Akatsuka A,Kaneko-Ishino T,Ishino F,Ogura A

    更新日期:2008-08-01 00:00:00

  • Interconversion of cortisol and cortisone by 11beta-hydroxysteroid dehydrogenases type 1 and 2 in the perfused human placenta.

    abstract::The human placenta contains two types of 11beta-hydroxysteroid dehydrogenase (11beta-HSD). The exclusive oxidase 11beta-HSD2 has been suggested to protect the fetus from high levels of maternal glucocorticoids by converting cortisol to inactive cortisone. Perfused term human placenta was used to examine the activity o...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1053/plac.1998.0352

    authors: Sun K,Adamson SL,Yang K,Challis JR

    更新日期:1999-01-01 00:00:00

  • Vascular distribution patterns in monochorionic twin placentas.

    abstract::Several recent publications have focused on the association between the occurrence of twin-to-twin transfusion syndrome (TTTS) in diamniotic-monochorionic twins and the presence of a number of selected anatomic placental characteristics (distribution of vascular territory, cord insertion, type and number of inter-twin...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2004.06.014

    authors: De Paepe ME,DeKoninck P,Friedman RM

    更新日期:2005-07-01 00:00:00

  • Expression and role of SNAT3 in the placenta.

    abstract::Glutamine is the most versatile amino acid and its plasma concentration is the highest of all amino acid. Many transporters are therefore involved in glutamine uptake or efflux. Glutamine is actively released from the placenta into fetal circulation. In this study, we examined the alteration of transporters that trans...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2009.09.009

    authors: Yoshioka C,Yasuda S,Kimura F,Kobayashi M,Itagaki S,Hirano T,Iseki K

    更新日期:2009-12-01 00:00:00

  • Changes in endometrial ezrin and cytokeratin 18 expression during bovine implantation and in caruncular endometrial spheroids in vitro.

    abstract:INTRODUCTION:The feto-maternal interface during bovine implantation was studied in vivo and using three-dimensional bovine endometrial (BCECph) and trophoblast spheroids (CCS), each with underlying fibroblasts. METHODS:The expression of ezrin and cytokeratin 18 (CK18) was analyzed via immunohistochemistry (IHC), RT-PC...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2015.06.001

    authors: Haeger JD,Hambruch N,Dantzer V,Hoelker M,Schellander K,Klisch K,Pfarrer C

    更新日期:2015-08-01 00:00:00

  • Human amnion mesenchymal cells are pro-inflammatory when activated by the Toll-like receptor 2/6 ligand, macrophage-activating lipoprotein-2.

    abstract:INTRODUCTION:Infection accounts for over 40% of preterm premature rupture of the fetal membranes (PPROM), a major cause of preterm birth. Toll-like receptors (TLR) play key roles in pathogen surveillance but their expression and function in amnion mesenchymal cells (AMC) is unclear. The aims of this study were to deter...

    journal_title:Placenta

    pub_type: 杂志文章

    doi:10.1016/j.placenta.2016.06.005

    authors: Sato BL,Collier ES,Vermudez SA,Junker AD,Kendal-Wright CE

    更新日期:2016-08-01 00:00:00