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https://www.readbyqxmd.com/read/28813528/maternal-and-fetal-risk-factors-for-stillbirth-in-northern-tanzania-a-registry-based-retrospective-cohort-study
#1
Francisca S Chuwa, Amasha H Mwanamsangu, Benjamin G Brown, Sia E Msuya, Elizabeth E Senkoro, Oresta P Mnali, Festo Mazuguni, Michael J Mahande
BACKGROUND: Stillbirth is a major cause of perinatal mortality and occurs disproportionately in developing countries including Tanzania. However, there is scant information regarding the predictors of this condition in Tanzania. This study aimed to determine maternal and fetal risk factors for stilbirth in northen Tanzania. METHODOLOGY: A retrospective cohort study was performed using maternally-linked data from the Kilimanjaro Christian Medical Centre birth registry...
2017: PloS One
https://www.readbyqxmd.com/read/28811873/a-human-plasma-derived-supplement-preserves-function-of-human-vascular-cells-in-absence-of-fetal-bovine-serum
#2
C Castells-Sala, J Martorell, M Balcells
Current techniques for cell culture routinely use animal-derived components. Fetal bovine serum (FBS) is the most widely applied supplement, but it often displays significant batch-to-batch variations and is generally not suitable for clinical applications in humans. A robust and xeno-free alternative to FBS is of high interest for cellular therapies, from early in vitro testing to clinical trials in human subjects. In the current work, a highly consistent human plasma derived supplement (SCC) has been tested, as a potential substitute of FBS in primary human vascular cells culture...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28809844/the-4-vessel-sampling-approach-to-integrative-studies-of-human-placental-physiology-in-vivo
#3
Ane M Holme, Maia B Holm, Marie C P Roland, Hildegunn Horne, Trond M Michelsen, Guttorm Haugen, Tore Henriksen
The human placenta is highly inaccessible for research while still in utero. The current understanding of human placental physiology in vivo is therefore largely based on animal studies, despite the high diversity among species in placental anatomy, hemodynamics and duration of the pregnancy. The vast majority of human placenta studies are ex vivo perfusion studies or in vitro trophoblast studies. Although in vitro studies and animal models are essential, extrapolation of the results from such studies to the human placenta in vivo is uncertain...
August 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28809760/the-milestone-of-non-invasive-prenatal-identification-of-chromosomal-abnormalities-in-fetal-trophoblasts-recovered-from-maternal-blood
#4
Jaime Garcia-Heras
Two recent studies demonstrated that array CGH and NGS allow identification of chromosomal abnormalities in fetal trophoblasts circulating in maternal blood. This remarkable breakthrough paves the way for an improved assay that supersedes the performance of non-invasive prenatal testing (NIPT) in cell-free fetal DNA. Furthermore, it is foreseeable to expand the use of this new genomic analysis in trophoblasts to uncover single gene mutations of clinical significance prenatally.
2017: Journal of the Association of Genetic Technologists
https://www.readbyqxmd.com/read/28808378/rutamarin-an-active-constituent-from-ruta-angustifolia-pers-induced-apoptotic-cell-death-in-the-ht29-colon-adenocarcinoma-cell-line
#5
Shafinah Ahmad Suhaimi, Sok Lai Hong, Sri Nurestri Abdul Malek
BACKGROUND: Ruta angustifolia Pers. is a perennial herb that is cultivated worldwide, including Southeast Asia, for the treatment of various diseases as traditional medicine. OBJECTIVE: The purpose of the study was to identify an active principle of R. angustifolia and to investigate its effect on the HT29 cell death. MATERIALS AND METHODS: The methanol and fractionated extracts (hexane, chloroform, ethyl acetate, and water) of R. angustifolia Pers...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28808377/anti-inflammatory-potential-of-petiveria-alliacea-on-activated-raw264-7-murine-macrophages
#6
Rosa Martha Perez Gutierrez, Carlos Hoyo-Vadillo
BACKGROUND: Defense and protection to multiple harmful stimuli are the inflammation, when is self-amplified and uncontrolled is the basis of the pathogenesis of a wide variety of inflammatory illness. The aim of this study was to evaluate if Petiveria alliacea could attenuate inflammation in a murine model of RAW264 macrophages the involved model and its involved mechanism. MATERIALS AND METHODS: The ethanol extract from P. alliacea was precipitated with water and supernatant was used for this study (PW)...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28807814/development-of-a-chromosomal-microarray-test-for-the-detection-of-abnormalities-in-formalin-fixed-paraffin-embedded-products-of-conception-specimens
#7
Troy J Gliem, Umut Aypar
Testing the products of conception (POC) provides information regarding the cause of fetal loss, and helps determine the recurrence risk for future losses and chromosome abnormalities in subsequent pregnancies. Historically, the Mayo Clinic Cytogenetics Laboratory performed targeted fluorescent in situ hybridization (FISH) testing to identify aneuploidy of only certain chromosomes in formalin-fixed, paraffin-embedded (FFPE) POC samples. Chromosomal microarray (CMA) studies utilizing the Affymetrix OncoScan™ FFPE Assay can detect copy number changes across the genome...
August 11, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28805973/experimental-and-clinical-evidence-of-differential-effects-of-magnesium-sulfate-on-neuroprotection-and-angiogenesis-in-the-fetal-brain
#8
Matthieu Lecuyer, Marina Rubio, Clément Chollat, Maryline Lecointre, Sylvie Jégou, Philippe Leroux, Carine Cleren, Isabelle Leroux-Nicollet, Loic Marpeau, Denis Vivien, Stéphane Marret, Bruno J Gonzalez
Clinical studies showed beneficial effects of magnesium sulfate regarding the risk of cerebral palsy. However, regimen protocols fluctuate worldwide and risks of adverse effects impacting the vascular system have been reported for human neonates, keeping open the question of the optimal dosing. Using clinically relevant concentrations and doses of magnesium sulfate, experiments consisted of characterizing, respectively, ex vivo and in vivo, the effects of magnesium sulfate on the nervous and vascular systems of mouse neonates by targeting neuroprotection, angiogenesis, and hemodynamic factors and in measuring, in human fetuses, the impact of a 4-g neuroprotective loading dose of magnesium sulfate on brain hemodynamic parameters...
August 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28804563/count-based-size-correction-analysis-of-maternal-plasma-dna-for-improved-noninvasive-prenatal-detection-of-fetal-trisomies-13-18-and-21
#9
Li Zhang, Qian Zhu, He Wang, Shanling Liu
PURPOSE: Our goal was to derive more sensitive and accurate Z-scores based on combined DNA count- and size-based algorithms to advance molecular diagnostics for noninvasive prenatal testing of fetal trisomies. METHODS: We included 180 cases at high risk for fetal aneuploidy who underwent amniotic fluid cytogenetic analysis. We calculated their traditional count-based Z-scores, as well as their 100-, 130- and 150-, and 166-bp size-corrected Z-scores, and determined each Z-score's reliability based on its comparison to the cases' cytogenetic results...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28803536/bovine-viral-diarrhea-virus-1b-fetal-infection-with-extensive-hemorrhage
#10
Robert W Fulton, Anthony W Confer, Nicholas J Sorensen, Julia F Ridpath, Lurinda J Burge
Bovine viral diarrhea virus (BVDV) 1b was isolated from tissues of a term bovine fetus with petechial hemorrhages noted throughout the body and placenta at autopsy. Fresh lung, kidney, thymus, and liver tissues were examined by direct fluorescent antibody testing and were positive for BVDV antigen and negative for bovine herpesvirus 1 antigen. An organ pool of fresh tissues was positive for noncytopathic (NCP) BVDV-1 by virus isolation. BVDV-1b was identified by sequencing of the 5'-UTR region of the genome...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28801976/implications-of-fetoplacental-mosaicism-on-cell-free-dna-testing-for-sex-chromosome-aneuploidies
#11
Francesca Romana Grati, Komal Bajaj, Valentina Zanatta, Francesca Malvestiti, Barbara Malvestiti, Livia Marcato, Beatrice Grimi, Federico Maggi, Giuseppe Simoni, Susan J Gross, Jose Ferreira
OBJECTIVE: The unique biological behavior of sex chromosomes has implications for cell-free DNA (cfDNA) testing. Our purpose is to predict the i) false positive/negative rates (FPR/FNR) of cfDNA testing consequent to feto-placental mosaicism for any sex chromosome anomaly (SCA) ii) positive (PPV) and negative predictive values (NPV) of a high- and low-risk cfDNA result for any SCA. METHOD: Retrospective analysis of 67030 chorionic villus sampling (CVS) karyotypes, including feto-placental mosaicism cases...
August 11, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28801810/effects-of-pbm-in-different-energy-densities-and-irradiance-on-maintaining-cell-viability-and-proliferation-of-pulp-fibroblasts-from-human-primary-teeth
#12
Nádia Carolina Teixeira Marques, Natalino Lourenço Neto, Mariel Tavares Oliveira Prado, Luciana Lourenço Ribeiro Vitor, Rodrigo Cardoso Oliveira, Vivien Thiemy Sakai, Carlos Ferreira Santos, Maria Aparecida Andrade Moreira Machado, Thais Marchini Oliveira
This study aimed to compare the effects of photobiomodulation (PBM) in different energy densities and irradiances on maintaining cell viability, and proliferation of pulp fibroblasts from human primary teeth (HPF) were cultured in DMEM and used between the fourth and eighth passages. Then, HPF were irradiated with the following different energy densities: 1.25 J/cm(2) (a), 2.50 J/cm(2) (b), 3.75 J/cm(2) (c), 5.00 J/cm(2) (d), and 6.25 J/cm(2) (e); but varying either the time of irradiation (groups 1a-1e) or the output power (groups 2a-2e)...
August 11, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28801392/can-promoting-awareness-of-fetal-movements-and-focusing-interventions-reduce-fetal-mortality-a-stepped-wedge-cluster-randomised-trial-affirm
#13
Alexander E P Heazell, Christopher J Weir, Sarah J E Stock, Catherine J Calderwood, Sarah Cunningham Burley, J Frederik Froen, Michael Geary, Alyson Hunter, Fionnuala M McAuliffe, Edile Murdoch, Aryelly Rodriguez, Mary Ross-Davie, Janet Scott, Sonia Whyte, Jane E Norman
BACKGROUND: In 2013, the stillbirth rate in the UK was 4.2 per 1000 live births, ranking 24th out of 49 high-income countries, with an annual rate of reduction of only 1.4% per year. The majority of stillbirths occur in normally formed infants, with (retrospective) evidence of placental insufficiency the most common clinical finding. Maternal perception of reduced fetal movements (RFM) is associated with placental insufficiency and increased risk of subsequent stillbirth.This study will test the hypothesis that the introduction of a package of care to increase women's awareness of the need for prompt reporting of RFM and standardised management to identify fetal compromise with timely delivery in confirmed cases, will reduce the rate of stillbirth...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28801297/-effect-of-metformin-on-insulin-resistance-during-catch-up-growth-in-mice-with-fetal-growth-restriction
#14
Ping Peng, Chun-Ling Ma, Shu-Mei Wan, Wen-Sheng Jin, Yan Gao, Tian-Qing Huang, Qi Cheng, Chang-Lan Ye
OBJECTIVE: To study the efficacy of metformin intervention on insulin resistance during catch-up growth in mice with fetal growth restriction (FGR). METHODS: Mouse models of FGR were established by low protein diet feeding of the pregnant mice. Both the newborn female mice with FGR and normal control (NC) mice were randomized for feeding with a standard diet (SF) or a high-fat diet (HF) after weaning and treatment with gavage of either metformin or normal saline...
August 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28800671/-outcomes-of-planned-out-of-hospital-and-low-risk-hospital-births-in-lower-saxony
#15
Antje Petersen, Lea-Marie Köhler, Christiane Schwarz, Bernhard Vaske, Mechthild M Gross
Introduction Internationally, there is debate on the safety of different birth settings inside and outside of hospitals. Low-risk women in Germany can choose where they give birth, and out-of-hospital births are especially necessary in regions lacking infrastructure. To date, national studies are required. Materials and Methods We investigated planned out-of-hospital (OH) and hospital births in Lower Saxony, Germany, in 2005. Women with a singleton fetus in the vertex position were included once they reached 34+0 gestational weeks...
August 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28796911/re-evaluation-of-lung-to-thorax-transverse-area-ratio-immediately-before-birth-in-predicting-postnatal-short-term-outcomes-of-fetuses-with-isolated-left-sided-congenital-diaphragmatic-hernia-a-single-center-analysis
#16
Saki Kido, Nobuhiro Hidaka, Yuka Sato, Yasuyuki Fujita, Kina Miyoshi, Kouji Nagata, Tomoaki Taguchi, Kiyoko Kato
We aimed to investigate whether the lung-to-thorax transverse area ratio (LTR) immediately before birth is of diagnostic value for the prediction of postnatal short-term outcomes in cases of isolated left-sided congenital diaphragmatic hernia (CDH). We retrospectively reviewed the cases of fetal isolated left-sided CDH managed at our institution between April 2008 and July 2016. We divided the patients into 2 groups based on LTR immediately before birth, using a cut-off value of 0.08. We compared the proportions of subjects within the 2 groups who survived until discharge using Fisher's exact test...
August 10, 2017: Congenital Anomalies
https://www.readbyqxmd.com/read/28796831/the-species-origin-of-the-serum-in-the-culture-medium-influences-the-in-vitro-toxicity-of-silica-nanoparticles-to-hepg2-cells
#17
Cédric Pisani, Estelle Rascol, Christophe Dorandeu, Jean-Charles Gaillard, Clarence Charnay, Yannick Guari, Joël Chopineau, Jean Armengaud, Jean-Marie Devoisselle, Odette Prat
The formation of a protein corona around nanoparticles can influence their toxicity, triggering cellular responses that may be totally different from those elicited by pristine nanoparticles. The main objective of this study was to investigate whether the species origin of the serum proteins forming the corona influences the in vitro toxicity assessment of silica nanoparticles. Coronas were preformed around nanoparticles before cell exposures by incubation in fetal bovine (FBS) or human (HS) serum. The compositions of these protein coronas were assessed by nano-LC MS/MS...
2017: PloS One
https://www.readbyqxmd.com/read/28796631/endocrine-disruption-in-human-fetal-testis-explants-by-individual-and-combined-exposures-to-selected-pharmaceuticals-pesticides-and-environmental-pollutants
#18
Pierre Gaudriault, Séverine Mazaud-Guittot, Vincent Lavoué, Isabelle Coiffec, Laurianne Lesné, Nathalie Dejucq-Rainsford, Martin Scholze, Andreas Kortenkamp, Bernard Jégou
BACKGROUND: Numerous chemicals are capable of disrupting androgen production, but the possibility that they might act together to produce effects greater than those of the most effective component in the mixture has not been studied directly in human tissues. Suppression of androgen synthesis in fetal life has been associated with testis maldescent, malformations of the genitalia at birth, and poor semen quality later in life. OBJECTIVES: Our aim was to investigate whether chemicals can act together to disrupt androgen production in human fetal testis explants and to evaluate the importance of mixture effects when characterizing the hazard of individual chemicals...
August 4, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28795155/detection-of-urine-dna-markers-for-monitoring-recurrent-hepatocellular-carcinoma
#19
Hie-Won Hann, Surbhi Jain, Grace Park, Jamin D Steffen, Wei Song, Ying-Hsiu Su
AIM: This study aimed to explore the potential of detecting hepatocellular carcinoma (HCC)-associated DNA markers, TP53 249T mutations and aberrant methylation of RASSF1A and GSTP1 genes, for monitoring HCC recurrence. HCC remains a leading cause of death worldwide, with one of the fastest growing incidence rates in the US. While treatment options are available and new ones emerging, there remains a poor prognosis of this disease mostly due to its late diagnosis and high recurrence rate...
2017: Hepatoma Research
https://www.readbyqxmd.com/read/28794470/endocrine-disruptors-induce-perturbations-in-endoplasmic-reticulum-and-mitochondria-of-human-pluripotent-stem-cell-derivatives
#20
Uthra Rajamani, Andrew R Gross, Camille Ocampo, Allen M Andres, Roberta A Gottlieb, Dhruv Sareen
Persistent exposure to man-made endocrine disrupting chemicals during fetal endocrine development may lead to disruption of metabolic homeostasis contributing to childhood obesity. Limited cellular platforms exist to test endocrine disrupting chemical-induced developmental abnormalities in human endocrine tissues. Here we use an human-induced pluripotent stem cell-based platform to demonstrate adverse impacts of obesogenic endocrine disrupting chemicals in the developing endocrine system. We delineate the effects upon physiological low-dose exposure to ubiquitous endocrine disrupting chemicals including, perfluoro-octanoic acid, tributyltin, and butylhydroxytoluene, in endocrine-active human-induced pluripotent stem cell-derived foregut epithelial cells and hypothalamic neurons...
August 9, 2017: Nature Communications
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