Full Text Journal Articles in
Journal Placenta

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The road (not) taken - Placental transfer and interspecies differences.

André Schmidt, Astrid Schmidt, Udo R Markert,

Species differences are among the main reasons for the high failure rate of preclinical studies. A better awareness and understanding of these differences might help to improve the outcome of preclinical research. In reproduction, the placenta is the central organ regulating fetal exposure to a substance circulating in the maternal ... Read more >>

Placenta (Placenta)
[2021, 115:70-77]

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Periconceptional maternal and paternal homocysteine levels and early utero-placental (vascular) growth trajectories: The Rotterdam periconception cohort.

Jeffrey Hoek, Sam Schoenmakers, Bianca Ringelberg, Igna F Reijnders, Sten P Willemsen, Yolanda B De Rijke, Annemarie G M G J Mulders, Régine P M Steegers-Theunissen,

<h4>Introduction</h4>Maternal elevated plasma total homocysteine (tHcy) is involved in the origin of several placenta-related pregnancy complications. The first trimester is the most sensitive period for placentation influenced by maternal and paternal health. The aim is to study associations between periconceptional parental tHcy levels and utero-placental growth trajectories in the first ... Read more >>

Placenta (Placenta)
[2021, 115:45-52]

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Current understanding of autophagy in intrahepatic cholestasis of pregnancy.

Dan Shan, Ruihong Dong, Yayi Hu,

Intrahepatic cholestasis of pregnancy (ICP) is the most common liver disease during pregnancy. Manifested with pruritus and elevation in bile acids, the etiology of ICP is still poorly understood. Although ICP is considered relatively benign for the mother, increased rates of adverse fetal outcomes including sudden fetal demise are possible ... Read more >>

Placenta (Placenta)
[2021, 115:53-59]

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A critical assessment of the potential vertical transmission hypotheses: Implications for research on the early-life infection with COVID-19.

Mengqin Yang, Qiuqin Wang, Yulei Song, Minyan Zou, Yan Li, Guihua Xu, Ting Yan, Yamei Bai,

The risk of potential vertical transmission in SARS-CoV-2 infected pregnant women is currently a topic of debate. To explore the correlation between the two, we searched PubMed, Embase®, and Web of Science for studies on vertical transmission of COVID-19. The quality of the studies was evaluated by the Cochrane risk ... Read more >>

Placenta (Placenta)
[2021, 115:78-86]

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A critical assessment of the potential vertical transmission hypotheses: Implications for research on the early-life infection with COVID-19

Mengqin Yang, Qiuqin Wang, Yulei Song, Minyan Zou, Yan Li, Guihua Xu, Ting Yan, Yamei Bai,

The risk of potential vertical transmission in SARS-CoV-2 infected pregnant women is currently a topic of debate. To explore the correlation between the two, we searched PubMed, Embase®, and Web of Science for studies on vertical transmission of COVID-19. The quality of the studies was evaluated by the Cochrane risk ... Read more >>

Placenta (Placenta)
[2021, 115:78-86]

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Placental pathology in women with HIV.

Nadia M Ikumi, Mushi Matjila, Clive M Gray, Dilly Anumba, Komala Pillay,

Recognizing the importance of placental features and their unique functions can provide insight into maternal health, the uterine environment during the course of pregnancy, birth outcomes and neonatal health. In the context of HIV and antiretroviral therapy (ART), there have been great strides in the prevention of mother to child ... Read more >>

Placenta (Placenta)
[2021, 115:27-36]

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Elevated placental histone H3K4 methylation via upregulated histone methyltransferases SETD1A and SMYD3 in preeclampsia and its possible involvement in hypoxia-induced pathophysiological process.

Haruka Matsui, Takayuki Iriyama, Seisuke Sayama, Naoko Inaoka, Kensuke Suzuki, Midori Yoshikawa, Mari Ichinose, Kenbun Sone, Keiichi Kumasawa, Takeshi Nagamatsu, Takao Fujisawa, Isao Naguro, Hidenori Ichijo, Tomoyuki Fujii, Yutaka Osuga,

<h4>Introduction</h4>Disturbance in placental epigenetic regulation contributes to the pathogenesis of preeclampsia (PE). Although aberrant placental DNA methylation status in PE has been thoroughly studied, the role of histone modifications, including histone methylation, in PE remains unclear. Moreover, no study has ever reported the association between PE and placental histone methylation ... Read more >>

Placenta (Placenta)
[2021, 115:60-69]

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Microrna analysis of human decidua mesenchymal stromal cells from preeclampsia patients.

Nilufer Kamali Simsek, Ali Benian, Kubra Sevgin, Yagmur Ergun, Hale Goksever Celik, Sercin Karahuseyinoglu, Tuba Gunel,

<h4>Introduction</h4>In preeclampsia (PE), human decidua mesenchymal stromal cells (hDMSCs) are exposed to abnormally high levels of oxidative stress and inflammatory factors circulating in the maternal blood. MicroRNAs (miRNAs) have been shown to have a significant impact on the differentiation, maturation and function of mesenchymal stromal cells (MSCs). Our aim in ... Read more >>

Placenta (Placenta)
[2021, 115:12-19]

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Hypoxic effects on the mitochondrial content and functions of the placenta in fetal growth restriction.

Yue-Ying Xu, Yuan Liu, Ling Cui, Wei-Bin Wu, Martin John Quinn, Ramkumar Menon, Hui-Juan Zhang,

<h4>Introduction</h4>In this study we examined the hypothesis that a hypoxic intrauterine environment causes mitochondrial dysfunction of trophoblasts in fetal growth restriction (FGR).<h4>Methods</h4>The mtDNA content, mRNA levels of mitochondrial encoded genes (ND6, COX I), mitochondrial membrane proteins (COX I, COX IV and VDAC), HIF-1α and BINP3 (mitophagy receptor) protein levels were ... Read more >>

Placenta (Placenta)
[2021, 114:100-107]

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Changes in placental elastography in the third trimester - Analysis using a linear mixed effect model.

Christopher Edwards, Erika Cavanagh, Sailesh Kumar, Vicki L Clifton, Danielle J Borg, Jacob Priddle, Marie-Luise Wille, Christopher Drovandi, Davide Fontanarosa,

<h4>Introduction</h4>Research into the role of ultrasound elastography to assess compromised placental tissue is ongoing. There is particular interest in evaluating its potential in the investigation of changes associated with uteroplacental dysfunction. To date, there is limited data on how different maternal and fetal considerations, such as advancing gestational age, amniotic ... Read more >>

Placenta (Placenta)
[2021, 114:83-89]

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Structural changes to the brood pouch of male pregnant seahorses (Hippocampus abdominalis) facilitate exchange between father and embryos.

J S Dudley, P Hannaford, S N Dowland, L A Lindsay, M B Thompson, C R Murphy, J U Van Dyke, C M Whittington,

<h4>Introduction</h4>Embryonic growth and development require efficient respiratory gas exchange. Internal incubation of developing young thus presents a significant physiological challenge, because respiratory gas diffusion to embryos is impeded by the additional barrier of parental tissue between the embryo and the environment. Therefore, live-bearing species exhibit a variety of adaptations facilitating ... Read more >>

Placenta (Placenta)
[2021, 114:115-123]

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Quantitative T1 and T2 mapping by magnetic resonance fingerprinting (MRF) of the placenta before and after maternal hyperoxia.

Jeffrey N Stout, Congyu Liao, Borjan Gagoski, Esra Abaci Turk, Henry A Feldman, Carolina Bibbo, William H Barth, Scott A Shainker, Lawrence L Wald, P Ellen Grant, Elfar Adalsteinsson,

<h4>Introduction</h4>MR relaxometry has been used to assess placental exchange function, but methods to date are not sufficiently fast to be robust to placental motion. Magnetic resonance fingerprinting (MRF) permits rapid, voxel-wise, intrinsically co-registered T<sub>1</sub> and T<sub>2</sub> mapping. After characterizing measurement error, we scanned pregnant women during air and oxygen breathing ... Read more >>

Placenta (Placenta)
[2021, 114:124-132]

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Dynamic contrast enhanced magnetic resonance imaging: A review of its application in the assessment of placental function.

Mathilde Jacquier, Chloé Arthuis, David Grévent, Laurence Bussières, Charline Henry, Anne-Elodie Millischer-Bellaiche, Houman Mahallati, Yves Ville, Nathalie Siauve, Laurent J Salomon,

It is important to develop a better understanding of placental insufficiency given its role in common maternofetal complications such as preeclampsia and fetal growth restriction. Functional magnetic resonance imaging offers unprecedented techniques for exploring the placenta under both normal and pathological physiological conditions. Dynamic contrast-enhanced magnetic resonance imaging (DCE MRI) ... Read more >>

Placenta (Placenta)
[2021, 114:90-99]

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Placental MRI: Longitudinal relaxation time (T1) in appropriate and small for gestational age pregnancies.

Anna S Andersen, Kristi B Anderson, Ditte N Hansen, Marianne Sinding, Astrid C Petersen, David A Peters, Jens B Frøkjær, Anne Sørensen,

<h4>Objective</h4>The antenatal detection of small for gestational age (SGA) pregnancies is a challenge, which may be improved by placental MRI. The longitudinal relaxation time (T1) is a tissue constant related to tissue morphology and tissue oxygenation, thereby placental T1 may be related to placental function. The aim of this study ... Read more >>

Placenta (Placenta)
[2021, 114:76-82]

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The abnormal expression of Tim-3 is involved in the regulation of myeloid-derived suppressor cells and its correlation with preeclampsia.

Shuai Dong, Neelam Kumari Shah, Jin He, Shumei Han, Min Xie, Ying Wang, Tingting Cheng, Zitao Liu, Chang Shu,

<h4>Introduction</h4>Maternal immune system tolerance to the semi-allogeneic fetus is critical to a successful pregnancy. We previously reported that myeloid-derived suppressor cells (MDSC) was associated with maternal immune imbalance. T cell immunoglobulin and mucin-containing protein 3 (Tim-3)/Galectin-9 (Gal-9) pathway modulates function of various immune cells in maternal-fetal interface. However, the regulatory ... Read more >>

Placenta (Placenta)
[2021, 114:108-114]

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Diagnostic predictability of miR-4535 and miR-1915-5p expression in amniotic fluid for foetal morbidity of infection.

Kenichi Yoshikawa, Chihiro Kiyoshima, Toyofumi Hirakawa, Daichi Urushiyama, Satoshi Fukagawa, Daisuke Izuchi, Ayako Sanui, Masamitsu Kurakazu, Kohei Miyata, Makoto Nomiyama, Takashi Setoue, Shinichiro Nagamitsu, Kazuki Nabeshima, Kenichiro Hata, Shin'ichiro Yasunaga, Shingo Miyamoto,

<h4>Introduction</h4>Clinical prediction of foetal inflammatory response syndrome (FIRS) is highly necessary. We have previously reported that miR-4535 and miR-1915-5p are potential biomarkers for severe chorioamnionitis based on the results of microRNA array analysis. Therefore, we evaluated the relationship between foetal morbidity of infection and miR-4535, miR-1915-5p, interleukin (IL)-6, or 16S ... Read more >>

Placenta (Placenta)
[2021, 114:68-75]

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Risk of COVID-19 maternofetal transmission at term: new evidence against placental infection by SARS-CoV-2

Arthur Colson, Christophe Depoix, Géraldine Dessilly, Pamela Baldin, Olivier Danhaive, Corinne Hubinont, Pierre Sonveaux, Frédéric Debiève,

Placenta (Placenta)
[2021, 112:e79-e79]

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MRI based morphological examination of the placenta.

Chloé Arthuis, Anne-Elodie Millischer, Laurence Bussières, Houman Mahallati, Charline Henry, Yves Ville, Laurent Julien Salomon, David Grévent,

Ultrasound is widely used as the initial diagnostic imaging modality during pregnancy with both high spatial and temporal resolution. Although MRI in pregnancy has long focused on the fetus, its use in placental imaging has greatly increased over recent years. In addition to the possibilities of evaluating function, MRI with ... Read more >>

Placenta (Placenta)
[2021, 115:20-26]

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T2* weighted placental MRI in relation to placental histology and birth weight.

Marianne Sinding, Anne Sørensen, Ditte N Hansen, David A Peters, Jens B Frøkjær, Astrid C Petersen,

<h4>Introduction</h4>Placental dysfunction may be found among normal birth weight (BW) pregnancies, as indicated by abnormal histological findings in postnatal placental examination in some of these pregnancies. T2* weighted placental MRI provides non-invasive information on placental oxygenation and thereby placental function. The aim of this study was to investigate the correlation ... Read more >>

Placenta (Placenta)
[2021, 114:52-55]

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Placental apoptotic markers are associated with placental morphometry.

Vaishali Kasture, Deepali Sundrani, Karuna Randhir, Girija Wagh, Sadhana Joshi,

<h4>Introduction</h4>Preeclampsia is a hypertensive disorder affecting both mother and the fetus and is a major cause of maternal and neonatal morbidity and mortality. Abnormal placentation is a common feature in preeclampsia that contributes to placental dysfunction. It is likely that increased homocysteine and oxidative stress influence apoptosis in preeclampsia. Increased ... Read more >>

Placenta (Placenta)
[2021, 115:1-11]

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A re-examination of the origins of placental bed giant cells.

Carolyn J P Jones, John D Aplin,

In view of controversy about the source of placental multinuclear giant cells, we have re-examined the literature which clearly shows they are derived from trophoblastic elements that have populated the decidua. Archival material for electron microscopy from 17 to 18 week placentae demonstrates they can be found connected via desmosomes ... Read more >>

Placenta (Placenta)
[2021, 114:39-41]

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In vitro fertilization causes excessive glycogen accumulation in mouse placenta.

Jie Dong, Xiangyu Guo, Chenxi Qian, Jingjing Wang, Hui Lei, Shuqiang Chen, Xiaohong Wang,

<h4>Introduction</h4>Children conceived by assisted reproductive technologies have a high risk of suffering from obstetrical complications and long-term health problems, but the related mechanisms are not fully understood. Normal placental function is closely linked with foetal growth and future health. Given the significance of glycogen metabolism in placentas, we investigated the ... Read more >>

Placenta (Placenta)
[2021, 114:29-38]

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Isolated fetal neural tube defects associate with increased risk of placental pathology: Evidence from the Collaborative Perinatal Project.

Marina White, David Grynspan, Tim Van Mieghem, Kristin L Connor,

<h4>Introduction</h4>Neural tube defects (NTDs) are amongst the most common congenital anomalies and are associated with significant postnatal morbidity, but also with a higher incidence of low birthweight and fetal growth restriction. Despite the placenta being a critical determinant of fetal growth, placental development has not been extensively studied in fetuses ... Read more >>

Placenta (Placenta)
[2021, 114:56-67]

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Changes in the structure of chorioamniotic membrane in patients with malaria in pregnancy.

Mercy Singoei, Moses Madadi Obimbo, Paul Ochieng Odula, Jesse Gitaka, Ibsen Henric Ongidi,

<h4>Introduction</h4>Malaria infection in pregnancy has adverse consequences for both fetal and maternal health. There is insufficient data on the effect malaria in pregnancy has on the structure of the chorioamniotic membrane. Our objective was to determine the structure of the chorioamniotic membrane in patients with malaria in pregnancy.<h4>Methods</h4>Specimens of the ... Read more >>

Placenta (Placenta)
[2021, 114:42-49]

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New exon and accelerated evolution of placental gene Nrk occurred in the ancestral lineage of placental mammals.

Guopeng Liu, Chunxiao Zhang, Yuting Wang, Guangyi Dai, Shu-Qun Liu, Wenshuai Wang, Yi-Hsuan Pan, Jianping Ding, Haipeng Li,

<h4>Introduction</h4>The chorioallantoic placenta is a specific organ for placental mammals. However, the adaptive events during its emergence are still poorly investigated.<h4>Methods</h4>We scanned the chromosome X to detect the accelerated evolution in the ancestral lineage of placental mammals, and constructed 3D protein structure models of a candidate by homology modeling.<h4>Results</h4>Eight branch-specific ... Read more >>

Placenta (Placenta)
[2021, 114:14-21]

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