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https://www.readbyqxmd.com/read/29783163/maternal-hypothalamus-pituitary-adrenal-hpa-system-activity-and-stress-during-pregnancy-effects-on-gestational-age-and-infant-s-anthropometric-measures-at-birth
#1
Maria Gilles, Henrike Otto, Isabell A C Wolf, Barbara Scharnholz, Verena Peus, Michael Schredl, Marc W Sütterlin, Stephanie H Witt, Marcella Rietschel, Manfred Laucht, Michael Deuschle
BACKGROUND: Prenatal maternal stress might be a risk for the developing fetus and may have long-lasting effects on child and adult vulnerability to somatic and psychiatric disease. Over-exposure of the unborn to excess glucocorticoids and subsequent alteration of fetal development is hypothesized to be one of the key mechanisms linking prenatal stress with negative child outcome. METHODS: In this prospective longitudinal study, mothers-to-be (n = 405) in late pregnancy (36...
April 22, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29782174/expression-of-concentrative-nucleoside-transporters-slc28a-in-the-human-placenta-effects-of-gestation-age-and-prototype-differentiation-affecting-agents
#2
Lucie Jiraskova, Lukas Cerveny, Sara Karbanova, Zuzana Ptackova, Frantisek Staud
Equilibrative ( SLC29A) and concentrative ( SLC28A) nucleoside transporters contribute to proper placental development and mediate uptake of nucleosides/nucleoside-derived drugs. We analyzed placental expression of SLC28A mRNA during gestation. Moreover, we studied in choriocarcinoma-derived BeWo cells whether SLC29A and SLC28A mRNA levels can be modulated by activity of adenylyl cyclase, retinoic acid receptor activation, CpG islands methylation, or histone acetylation, using forskolin, all- trans-retinoic acid, and 5-azacytidine, and sodium butyrate/sodium valproate, respectively...
May 21, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29781077/demographic-factors-determining-folic-acid-supplementation-in-pregnant-and-childbearing-age-women
#3
Grażyna Kurzawińska, Justyna Magiełda, Anna Romała, Joanna Bartkowiak-Wieczorek, Magdalena Barlik, Krzysztof Drews, Marcin Ożarowski, Agnieszka Seremak-Mrozikiewicz
OBJECTIVES: Adequate folate intake constitutes a significant problem in the periconceptional period and early pregnancy but can be achieved by folic acid (FA) supplementation. Low intake of folate may cause numerous negative effects on the pregnancy outcome, including recurrent miscarriage, preeclampsia, fetal hypotrophy, premature delivery, premature placental abruption, and intrauterine fetal death. The aim of the study was to evaluate factors determining FA supplementation in the population of Polish women before and during pregnancy...
2018: Ginekologia Polska
https://www.readbyqxmd.com/read/29780773/clinical-characteristics-and-outcomes-of-placental-site-trophoblastic-tumor-experience-of-single-institution-in-korea
#4
Hye-Joo Lee, Wonkyo Shin, Yun Jeong Jang, Chel Hun Choi, Jeong-Won Lee, Duk-Soo Bae, Byoung-Gie Kim
Objective: Placental site trophoblastic tumor (PSTT) is the rarest form of gestational trophoblastic disease (GTD) and the optimum management is still controversial. In this study, we analyzed the clinical features, treatment, and outcomes of 6 consecutive patients with PSTT treated in our institution. Methods: The electronic medical record database of Samsung Medical Center was screened to identify patients with PSTT from 1994 to 2017. Medical records for the details of each patient's clinical features and treatment were extracted and reviewed...
May 2018: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/29778808/maternal-treatment-with-a-placental-targeted-antioxidant-mitoq-impacts-offspring-cardiovascular-function-in-a-rat-model-of-prenatal-hypoxia
#5
Mais M Aljunaidy, Jude S Morton, Raven Kirschenman, Tom Phillips, C Patrick Case, Christy-Lynn M Cooke, Sandra T Davidge
Intrauterine growth restriction, a common consequence of prenatal hypoxia, is a leading cause of fetal morbidity and mortality with a significant impact on population health. Hypoxia may increase placental oxidative stress and lead to an abnormal release of placental-derived factors, which are emerging as potential contributors to developmental programming. Nanoparticle-linked drugs are emerging as a novel method to deliver therapeutics targeted to the placenta and avoid risking direct exposure to the fetus...
May 17, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29778664/gestational-diabetes-mellitus-modulates-cholesterol-homeostasis-in-human-fetoplacental-endothelium
#6
Yidan Sun, Susanne Kopp, Jasmin Strutz, Chaitanya Chakravarthi Gali, Martina Zandl-Lang, Elham Fanaee-Danesh, Andrijana Kirsch, Silvija Cvitic, Saša Frank, Richard Saffery, Ingemar Björkhem, Gernot Desoye, Christian Wadsack, Ute Panzenboeck
Gestational diabetes mellitus (GDM) is associated with excessive oxidative stress which may affect placental vascular function. Cholesterol homeostasis is crucial for maintaining fetoplacental endothelial function. We aimed to investigate whether and how GDM affects cholesterol metabolism in human fetoplacental endothelial cells (HPEC). HPEC were isolated from fetal term placental arterial vessels of GDM or control subjects. Cellular reactive oxygen species (ROS) were detected by H2 DCFDA fluorescent dye. Oxysterols were quantified by gas chromatography-mass spectrometry analysis...
May 17, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29778069/differential-correlations-between-maternal-hair-levels-of-tobacco-and-alcohol-with-fetal-growth-restriction-clinical-subtypes
#7
Sally Sabra, Ebba Malmqvist, Laura Almeida, Eduard Gratacos, Maria Dolores Gomez Roig
Maternal exposure to tobacco and alcohol is a known cause, among others, for fetal growth restriction (FGR). Clinically, FGR can be subclassified into two forms: intrauterine growth restriction (IUGR) and small for gestational age (SGA), based on the severity of the growth retardation, and abnormal uterine artery Doppler or cerebro-placental ratio. This study aimed at investigating any differential correlation between maternal exposures to these toxins with the two clinical forms of FGR. Therefore, a case-control study was conducted in Barcelona, Spain...
January 4, 2018: Alcohol
https://www.readbyqxmd.com/read/29777524/mercury-involvement-in-neuronal-damage-and-in-neurodegenerative-diseases
#8
REVIEW
Veronica Lanza Cariccio, Annalisa Samà, Placido Bramanti, Emanuela Mazzon
Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and multiple sclerosis are characterized by a chronic and selective process of neuronal cell death. Although the causes of neurodegenerative diseases remain still unknown, it is now a well-established idea that more factors, such as genetic, endogenous, and environmental, are involved. Among environmental causes, the accumulation of mercury, a heavy metal considered a toxic agent, was largely studied as a probable factor involved in neurodegenerative disease course...
May 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29777495/ameliorative-effect-of-ginseng-extract-on-phthalate-and-bisphenol-a-reprotoxicity-during-pregnancy-in-rats
#9
Islam M Saadeldin, Mohamed A Hussein, Aida Hamid Suleiman, Mahmoud G Abohassan, Mona M Ahmed, Amr A Moustafa, Abdullah F Moumen, Ayman Abdel-Aziz Swelum
Phthalates (such as DEHP) and bisphenol A (BPA) are widely used chemicals in plastics manufacturing and exert public health concerns as endocrine disrupters. This study was designed to investigate the deleterious effect of DEHP and BPA on endocrine profile of pregnant female rats and the combined treatment with ginseng extract (Panax ginseng). Seventy-two pregnant rats were divided into six groups (control, ginseng, DEHP, BPA, Gin + DEHP, and Gin + BPA), 12 females per each group. The drugs were supplemented from pregnancy day 0 until day 20...
May 18, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29777276/prophylactic-placement-of-internal-iliac-balloons-in-patients-with-abnormal-placental-implantation-maternal-and-foetal-outcomes
#10
Patrick J Nicholson, Owen O'Connor, John Buckley, Liam D Spence, Richard A Greene, David J Tuite
PURPOSE: To report on outcomes following the use of prophylactic internal iliac artery occlusion balloons in patients with abnormal placental implantation. METHODS: A retrospective analysis was undertaken of patients with abnormal placental implantation who underwent prophylactic iliac balloon placement prior to delivery in a University Maternity Hospital. Various clinical and technical factors were analysed, including technical success of balloon placement, blood loss and number of blood units transfused, duration of surgery, length of stay, hysterectomy rates, complications related to the balloon insertion, foetal pH and infant Apgar scores...
May 18, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29776928/enrichment-of-clinically-relevant-organisms-in-spontaneous-preterm-delivered-placenta-and-reagent-contamination-across-all-clinical-groups-in-a-large-uk-pregnancy-cohort
#11
Lydia J Leon, Ronan Doyle, Ernest Diez-Benavente, Taane G Clark, Nigel Klein, Philip Stanier, Gudrun E Moore
In this study differences in the placental microbiota of term and preterm deliveries from a large UK pregnancy cohort were studied using 16S targeted amplicon sequencing. The impact of contamination from DNA extraction, PCR reagents, as well as those from delivery itself were also examined. A total of 400 placental samples from 256 singleton pregnancies were analysed and differences investigated between spontaneous preterm, non-spontaneous preterm, and term delivered placenta. DNA from recently delivered placenta was extracted, and screening for bacterial DNA was carried out using targeted sequencing of the 16S rRNA gene on the Illumina MiSeq platform...
May 18, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29775414/venoarterial-communication-mediates-arterial-wall-shear-stress-induced-maternal-uterine-vascular-remodeling-during-pregnancy
#12
Nga Ling Ko, Liam John, Aaron Gelinne, Maurizio Mandala, George Osol
Although expansive remodeling of the maternal uterine circulation during pregnancy is essential for maintaining uteroplacental perfusion and normal fetal growth, the underlying physiological mechanisms are not well understood. Using a rat model, surgical approaches were used to alter uterine hemodynamics and wall shear stress (WSS) in order to evaluate the effects of WSS and venoarterial communication (e.g. transfer of placentally derived growth signals from post-placental veins to pre-placental arteries) on gestational uterine vascular remodeling...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29774963/glucocorticoid-signaling-regulates-cell-invasion-and-migration-in-the-human-first-trimester-trophoblast-cell-line-sw-71
#13
Edwina P Kisanga, Zhonghua Tang, Seth Guller, Shannon Whirledge
PROBLEM: The development of the placenta and its functions are sensitive to infection and stress, which can activate the hypothalamic-pituitary-adrenal axis. Adrenally produced glucocorticoids are the body's primary mediators of the inflammatory and stress response. Although the glucocorticoid receptor (GR) is expressed in all human villous trophoblast tissue, the effect of glucocorticoids on placentation is not well understood. METHOD OF STUDY: Using microarray analysis, we identified the glucocorticoid-regulated transcriptional profile in the immortalized first-trimester extravillous trophoblast cell line Swan...
May 18, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29774238/chitinase-genes-chia-s-provide-genomic-footprints-of-a-post-cretaceous-dietary-radiation-in-placental-mammals
#14
Christopher A Emerling, Frédéric Delsuc, Michael W Nachman
The end-Cretaceous extinction led to a massive faunal turnover, with placental mammals radiating in the wake of nonavian dinosaurs. Fossils indicate that Cretaceous stem placentals were generally insectivorous, whereas their earliest Cenozoic descendants occupied a variety of dietary niches. It is hypothesized that this dietary radiation resulted from the opening of niche space, following the extinction of dinosaurian carnivores and herbivores. We provide the first genomic evidence for the occurrence and timing of this dietary radiation in placental mammals...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29774074/placenta-specific-drug-delivery-by-trophoblast-targeted-nanoparticles-in-mice
#15
Baozhen Zhang, Lunbo Tan, Yan Yu, Baobei Wang, Zhilong Chen, Jinyu Han, Mengxia Li, Jie Chen, Tianxia Xiao, Balamurali K Ambati, Lintao Cai, Qing Yang, Nihar R Nayak, Jian Zhang, Xiujun Fan
Rationale: The availability of therapeutics to treat pregnancy complications is severely lacking, mainly due to the risk of harm to the fetus. In placental malaria, Plasmodium falciparum- infected erythrocytes (IEs) accumulate in the placenta by adhering to chondroitin sulfate A (CSA) on the surfaces of trophoblasts. Based on this principle, we have developed a method for targeted delivery of payloads to the placenta using a synthetic placental CSA-binding peptide (plCSA-BP) derived from VAR2CSA, a CSA-binding protein expressed on IEs...
2018: Theranostics
https://www.readbyqxmd.com/read/29772777/oxidative-stress-in-preeclampsia-and-placental-diseases
#16
REVIEW
Rajaa Aouache, Louise Biquard, Daniel Vaiman, Francisco Miralles
Preeclampsia is a persistent hypertensive gestational disease characterized by high blood pressure and proteinuria, which presents from the second trimester of pregnancy. At the cellular level, preeclampsia has largely been associated with the release of free radicals by the placenta. Placenta-borne oxidative and nitrosative stresses are even sometimes considered as the major molecular determinants of the maternal disease. In this review, we present the recent literature evaluating free radical production in both normal and pathological placentas (including preeclampsia and other major pregnancy diseases), in humans and animal models...
May 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29772489/prevention-of-venous-thromboembolism-in-pregnant-patients-with-a-history-of-venous-thromboembolic-disease-a-retrospective-cohort-study
#17
Alejandro Lazo-Langner, Fatimah Al-Ani, Sarah Weisz, Camilla Rozanski, Martha Louzada, Judy Kovacs, Michael J Kovacs
BACKGROUND: Optimal prophylactic strategies in pregnant women with a history of venous thromboembolism (VTE) are unknown. PATIENTS AND METHODS: We conducted a retrospective cohort study of consecutive pregnant patients with a previous VTE history. Patients were followed until 6 weeks postpartum. Patients with a previous unprovoked event (including antepartum VTE) received antenatal prophylaxis, mostly with low dose low molecular weight heparin (LMWH). All patients received prophylaxis for six weeks after delivery...
May 5, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29772265/administration-of-low-dose-triclosan-to-pregnant-ewes-results-in-placental-uptake-and-reduced-estradiol-sulfotransferase-activity-in-fetal-liver-and-placenta
#18
Erin N Jackson, Laura Rowland-Faux, Margaret O James, Charles E Wood
Sulfonation is a major pathway of estrogen biotransformation with a role in regulating estrogen homeostasis in humans and sheep. Previous in vitro studies found that triclosan is an especially potent competitive inhibitor of ovine placental estrogen sulfotransferase, with Kic of <0.1 nM. As the placenta is the main organ responsible for estrogen synthesis in pregnancy in both women and sheep, and the liver is another site of estrogen biotransformation, this study examined the effects of triclosan exposure of pregnant ewes on placental and hepatic sulfotransferase activity...
May 14, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29772225/maternal-one-carbon-metabolism-through-increased-oxidative-stress-and-disturbed-angiogenesis-can-influence-placental-apoptosis-in-preeclampsia
#19
REVIEW
Vaishali V Kasture, Deepali P Sundrani, Sadhana R Joshi
Adequate maternal nutrition is critical for a healthy pregnancy outcome and poor maternal nutrition is known to be associated with pregnancy complications like preeclampsia. We have earlier demonstrated that there is an imbalance in the levels of micronutrients (folate and vitamin B12 ) along with low levels of long chain polyunsaturated fatty acids (LCPUFA) and high homocysteine levels in women with preeclampsia. Homocysteine is known to be involved in the formation of free radicals leading to increased oxidative stress...
May 14, 2018: Life Sciences
https://www.readbyqxmd.com/read/29771604/association-of-the-placental-vegf-promoter-polymorphisms-and-vegf-mrna-expression-with-preeclampsia
#20
Farshid Keshavarzi, Mahnaz Shahrakipoor, Batool Teimoori, Minoo Yaghmaei, Mehrnaz Narooei-Nejad, Ava Rasooli, Saeedeh Salimi
BACKGROUND: Preeclampsia (PE), is a pregnancy-specific complication with the placental origin which associated with altered expression of angiogenic factors. Vascular Endothelial Growth Factor (VEGF), is a growth and hypoxia-induced factor which contributes to the regulation of various processes. The present study has investigated the association of the placental VEGF -634G/C (rs2010963), -1154G/A (rs1570360), and -2549 I/D (18bpindel) polymorphisms in the promoter region with VEGF mRNA expression in PE women and control group...
May 17, 2018: Clinical and Experimental Hypertension: CHE
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