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https://www.readbyqxmd.com/read/28724251/concurrent-exposures-to-nonylphenol-bisphenol-a-phthalates-and-organophosphate-pesticides-on-birth-outcomes-a-cohort-study-in-taipei-taiwan
#1
Yu-Fang Huang, Wen-Chi Pan, Yen-An Tsai, Chia-Huang Chang, Pei-Jung Chen, Yi-Shuan Shao, Ming-Song Tsai, Jia-Woei Hou, Chensheng Alex Lu, Mei-Lien Chen
Prenatal exposure to phenols, phthalates (PAEs), and organophosphate (OP) pesticides may increase the risk of abnormal birth outcomes. However, many previous studies have examined exposure to a limited number of chemical classes or exposure profiles limited to a specific stage of pregnancy. This study aims to characterize the concurrent exposure scenario throughout pregnancy by simultaneously monitoring internal doses of several endocrine-disrupting compounds (EDCs), including 2 phenols (nonylphenol (NP) and bisphenol A (BPA)), 9 PAEs, and 6 OP pesticide metabolites and to assess the relationships between concurrent exposure to EDCs and infant birth weight, length, and head and chest circumference...
July 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724164/predictive-characteristics-of-elevated-1-hour-glucose-challenge-test-results-for-gestational-diabetes
#2
Alan T N Tita, Yinglei Lai, Mark B Landon, Susan M Ramin, Brian Casey, Ronald J Wapner, Michael W Varner, John M Thorp, Anthony Sciscione, Patrick Catalano, Margaret Harper, George R Saade, Steve N Caritis, Yoram Sorokin, Alan M Peaceman, Jorge E Tolosa
No abstract text is available yet for this article.
July 19, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28723918/heterogeneity-of-p53-dependent-genomic-responses-following-ethanol-exposure-in-a-developmental-mouse-model-of-fetal-alcohol-spectrum-disorder
#3
Maria Camargo Moreno, Sandra M Mooney, Frank A Middleton
Prenatal ethanol exposure can produce structural and functional deficits in the brain and result in Fetal Alcohol Spectrum Disorder (FASD). In rodent models acute exposure to a high concentration of alcohol causes increased apoptosis in the developing brain. A single causal molecular switch that signals for this increase in apoptosis has yet to be identified. The protein p53 has been suggested to play a pivotal role in enabling cells to engage in pro-apoptotic processes, and thus figures prominently as a hub molecule in the intracellular cascade of responses elicited by alcohol exposure...
2017: PloS One
https://www.readbyqxmd.com/read/28723674/nanoparticles-and-female-reproductive-system-how-do-nanoparticles-affect-oogenesis-and-embryonic-development
#4
REVIEW
Cong-Cong Hou, Jun-Quan Zhu
Along with the increasing application of nanoparticles (NPs) in many walks of life, environmental exposure to NPs has raised considerable health concerns. When NPs enter a pregnant woman's body through inhalation, venous injection, ingestion or skin permeation, maternal toxic stress reactions such as reactive oxygen species (ROS), inflammation, apoptosis and endocrine dyscrasia are induced in different organs, particularly in the reproductive organs. Recent studies have shown that NPs disturb the developing oocyte by invading the protective barrier of theca cells, granulosa cell layers and zona pellucida...
July 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28723140/rapid-and-label-free-detection-of-interferon-gamma-via-an-electrochemical-aptasensor-comprising-a-ternary-surface-monolayer-on-a-gold-interdigitated-electrode-array
#5
Shaowei Ding, Curtis Mosher, Xian Y Lee, Suprem R Das, Allison A Cargill, Xiaohui Tang, Bolin Chen, Eric S McLamore, Carmen Gomes, Jesse M Hostetter, Jonathan C Claussen
A label-free electrochemical impedance spectroscopy (EIS) aptasensor for rapid detection (<35 min) of interferon-gamma (IFN-γ) was fabricated by immobilizing a RNA aptamer capture probe (ACP), selective to IFN-γ, on a gold interdigitated electrode array (Au IDE). The ACP was modified with a thiol group at the 5' terminal end and subsequently co-immobilized with 1,6-hexanedithiol (HDT) and 6-mercapto-1-hexanolphosphate (MCH) to the gold surface through thiol-gold interactions. This ACP/HDT-MCH ternary surface monolayer facilitates efficient hybridization with IFN-γ and displays high resistance to nonspecific adsorption of nontarget proteins [i...
February 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722653/directing-visceral-white-adipocyte-precursors-to-a-thermogenic-adipocyte-fate-improves-insulin-sensitivity-in-obese-mice
#6
Chelsea Hepler, Mengle Shao, Jonathan Y Xia, Alexandra L Ghaben, Mackenzie J Pearson, Lavanya Vishvanath, Ankit X Sharma, Thomas S Morley, William L Holland, Rana K Gupta
Visceral adiposity confers significant risk for developing metabolic disease in obesity whereas preferential expansion of subcutaneous white adipose tissue (WAT) appears protective. Unlike subcutaneous WAT, visceral WAT is resistant to adopting a protective thermogenic phenotype characterized by the accumulation of Ucp1(+) beige/BRITE adipocytes (termed "browning"). In this study, we investigated the physiological consequences of browning murine visceral WAT by selective genetic ablation of Zfp423, a transcriptional suppressor of the adipocyte thermogenic program...
July 19, 2017: ELife
https://www.readbyqxmd.com/read/28722160/placental-proteomics-reveal-insights-into-fetal-alcohol-spectrum-disorders
#7
Katie L Davis-Anderson, Sebastian Berger, Emilie R Lunde-Young, Vishal D Naik, Heewon Seo, Greg A Johnson, Hanno Steen, Jayanth Ramadoss
Fetal alcohol spectrum disorders (FASD) describe many of the well-known neurodevelopmental deficits afflicting children exposed to alcohol in utero. The effects of alcohol on the maternal-fetal interface, especially the placenta, have been less explored. We herein hypothesized that chronic binge alcohol exposure during pregnancy significantly alters the placental protein profile in a rat FASD model METHODS: Pregnant rats were orogastrically treated daily with alcohol (4.5 g/kg, gestational day (GD) 5-10; 6...
July 19, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28721719/imprinted-nanovelcro-microchips-for-isolation-and-characterization-of-circulating-fetal-trophoblasts-toward-noninvasive-prenatal-diagnostics
#8
Shuang Hou, Jie-Fu Chen, Min Song, Yazhen Zhu, Yu Jen Jan, Szu Hao Chen, Tzu-Hua Weng, Dean-An Ling, Shang-Fu Chen, Tracy Ro, An-Jou Liang, Tom Lee, Helen Jin, Man Li, Lian Liu, Yu-Sheng Hsiao, Peilin Chen, Hsiao-Hua Yu, Ming-Song Tsai, Margareta D Pisarska, Angela Chen, Li-Ching Chen, Hsian-Rong Tseng
Circulating fetal nucleated cells (CFNCs) in maternal blood offer an ideal source of fetal genomic DNA for noninvasive prenatal diagnostics (NIPD). We developed a class of nanoVelcro microchips to effectively enrich a subcategory of CFNCs, i.e., circulating trophoblasts (cTBs) from maternal blood, which can then be isolated with single-cell resolution by a laser capture microdissection (LCM) technique for downstream genetic testing. We first established a nanoimprinting fabrication process to prepare the LCM-compatible nanoVelcro substrates...
July 19, 2017: ACS Nano
https://www.readbyqxmd.com/read/28721492/peristaltic-like-motion-of-the-human-fetal-right-ventricle-and-its-effects-on-fluid-dynamics-and-energy-dynamics
#9
Hadi Wiputra, Guat Ling Lim, Khong Chun Chua, R Nivetha, Sanah Merchant Soomar, Arijit Biwas, Citra Nurfarah Zaini Mattar, Hwa Liang Leo, Choon Hwai Yap
In both adult human and canine, the cardiac right ventricle (RV) is known to exhibit a peristaltic-like motion, where RV sinus (inflow region) contracts first and the infundibulum (outflow region) later, in a wave-like contraction motion. The delay in contraction between the sinus and infundibulum averaged at 15% of the cardiac cycle and was estimated to produce an intra-ventricular pressure difference of 15 mmHg. However, whether such a contractile motion occurs in human fetuses as well, its effects on hemodynamics remains unknown, and are the subject of the current study...
July 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28721409/single-antibody-antigen-interactions-monitored-via-transient-ionic-current-recording-using-nanopore-sensors
#10
Yi-Lun Ying, Ru-Jia Yu, Yong-Xu Hu, Rui Gao, Yi-Tao Long
Understanding the single molecular protein-protein interaction has great significance in evaluating the affinity of a specific antibody. Herein, the interaction between single α-fetal protein (AFP) and its antibody was monitored via transient ionic current recording by using the antibody functionalized nanopore sensors. More importantly, the kinetic evaluation was performed at the single molecule level to determine the dissociation constant of this interaction. This method enables the monitoring of the kinetic antigen-antibody interaction in their heterogenetic state without any labelling...
July 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28721142/maternal-lipids-associated-with-large-for-gestational-age-birth-weight-in-women-with-type-1-diabetes-results-from-a-prospective-single-center-study
#11
Paweł Gutaj, Ewa Wender-Ożegowska, Jacek Brązert
INTRODUCTION: Despite improvement in diabetes care over the years, the incidence of macrosomia in type 1 diabetic mothers is still very high and even shows an increasing tendency. It is suggested that other factors that maternal hyperglycemia might be associated with excessive fetal growth in diabetic mothers. The aim of this study was to determine whether maternal lipids might contribute to high rates of large-for-gestational-age (LGA) newborns in women with type 1 diabetes (T1DM). MATERIAL AND METHODS: This prospective, single-center study was performed in a population of women with T1DM admitted to the perinatal center for women with diabetes...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28720162/maternal-pregnancy-c-reactive-protein-predicts-offspring-birth-size-and-body-composition-in-metropolitan-cebu-philippines
#12
C W Kuzawa, R L Fried, J B Borja, T W McDade
The gestational milieu is an important influence on fetal development and long-term disease risk. Here we assess relationships between maternal pregnancy inflammation, indicated by C-reactive protein (CRP), and offspring anthropometric outcomes measured soon after birth. Data come from female participants (n=327, age 24.4-30.2 years) in a longitudinal study located in Metropolitan Cebu, Philippines. Between 2009 and 2014, pregnancy interviews (n=429) were conducted during which questionnaire and anthropometric data were obtained along with dried blood spot cards for CRP measurement...
July 19, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28719896/update-on-the-diagnosis-and-prognosis-of-preeclampsia-with-the-aid-of-the-sflt-1-plgf-ratio-in-singleton-pregnancies
#13
Ignacio Herraiz, Elisa Llurba, Stefan Verlohren, Alberto Galindo
Preeclampsia (PE) is involved in a group of obstetrical conditions closely related by the presence of placental dysfunction (PD), which also includes intrauterine growth restriction and placental abruption. The timely and accurate recognition and management of PE are often challenging because diagnostic criteria are still based on nonspecific signs and symptoms and because common severity criteria correlate poorly with adverse maternal and fetal outcomes. The discovery of the role of angiogenesis-related factors - soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PlGF) - in the underlying pathophysiology of PD has marked an important step for improving its early diagnosis and prognosis assessment before gestational week 34...
July 19, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28719288/evaluation-of-the-protective-effect-of-deoxyribonucleic-acid-vaccines-encoding-granule-antigen-2-and-5-against-acute-toxoplasmosis-in-balb-c-mice
#14
Xiao Teng Ching, Mun Yik Fong, Yee Ling Lau
AbstractToxoplasma gondii infects a broad range of warm-blooded hosts, including humans. Important clinical manifestations include encephalitis in immunocompromised patients as well as miscarriage and fetal damage during early pregnancy. Toxoplasma gondii dense granule antigen 2 and 5 (GRA2 and GRA5) are essential for parasitophorous vacuole development of the parasite. To evaluate the potential of GRA2 and GRA5 as recombinant DNA vaccine candidates, these antigens were cloned into eukaryotic expression vector (pcDNA 3...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718938/quality-control-of-ultrasound-for-fetal-biometry-results-from-the-intergrowth-21-st-project
#15
Angelo Cavallaro, Stephen T Ash, Raffaele Napolitano, Sikolia Wanyonyi, Eric O Ohuma, Malid Molloholli, Joyce Sande, Ippokratis Sarris, Christos Ioannou, Tess Norris, Vera Donadono, Maria Carvalho, Manorama Purwar, Fernando C Barros, Yasmin A Jaffer, Enrico Bertino, Ruyan Pang, Michael G Gravett, Laurent J Salomon, Julia Alison Noble, Douglas G Altman, Aris T Papageorghiou
OBJECTIVES: To assess a comprehensive package of ultrasound quality control in a large multicentre study of fetal growth - the Fetal Growth Longitudinal Study of the INTERGROWTH-21(st) Project. METHODS: We performed quality control (QC) measures on 20,313 ultrasound scan images taken prospectively from 4,321 fetuses at 14-41 weeks' gestation in eight geographical locations. At the time of each ultrasound examination, three fetal biometric variables were measured in triplicate on separately generated images: head circumference (HC), abdominal circumference (AC) and femur length (FL)...
July 18, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28718809/maternal-choline-supplementation-alters-fetal-growth-patterns-in-a-mouse-model-of-placental-insufficiency
#16
Julia H King, Sze Ting Cecilia Kwan, Jian Yan, Kevin C Klatt, Xinyin Jiang, Mark S Roberson, Marie A Caudill
Impairments in placental development can adversely affect pregnancy outcomes. The bioactive nutrient choline may mitigate some of these impairments, as suggested by data in humans, animals, and human trophoblasts. Herein, we investigated the effects of maternal choline supplementation (MCS) on parameters of fetal growth in a Dlx3+/- (distal-less homeobox 3) mouse model of placental insufficiency. Dlx3+/- female mice were assigned to 1X (control), 2X, or 4X choline intake levels during gestation. Dams were sacrificed at embryonic days E10...
July 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28718622/graphene-sheet-induced-global-maturation-of-cardiomyocytes-derived-from-human-induced-pluripotent-stem-cells
#17
Jiaxian Wang, Chang Cui, Haiyan Nan, Yuanfang Yu, Yini Xiao, Ellen Poon, Gang Yang, Xijie Wang, Chenchen Wang, Lingsong Li, Kenneth Richard Boheler, Xu Ma, Xin Cheng, Zhenhua Ni, Minglong Chen
Human induced pluripotent stem cells (hiPSCs) can proliferate infinitely. Their ability to differentiate into cardiomyocytes provides abundant sources for disease modeling, drug screening and regenerative medicine. However, hiPSC-derived cardiomyocytes (hiPSC-CMs) display a low degree of maturation and fetal-like properties. Current in vitro differentiation methods do not mimic the structural, mechanical, and physiological properties of the cardiogenesis niche. Recently, we present an efficient cardiac maturation platform that combines hiPSCs monolayer cardiac differentiation with graphene substrate which is a biocompatible and superconductive material...
July 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28717128/mother-s-pre-pregnancy-bmi-and-placental-candidate-mirnas-findings-from-the-environage-birth-cohort
#18
Maria Tsamou, Dries S Martens, Ellen Winckelmans, Narjes Madhloum, Bianca Cox, Wilfried Gyselaers, Tim S Nawrot, Karen Vrijens
There is increasing evidence that the predisposition for development of chronic diseases arises at the earliest times of life. In this context, maternal pre-pregnancy weight might modify fetal metabolism and the child's predisposition to develop disease later in life. The aim of this study is to investigate the association between maternal pre-pregnancy body mass index (BMI) and miRNA alterations in placental tissue at birth. In 211 mother-newborn pairs from the ENVIRONAGE birth cohort, we assessed placental expression of seven miRNAs important in crucial cellular processes implicated in adipogenesis and/or obesity...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717044/congenital-myotonic-dystrophy-an-rna-mediated-disease-across-a-developmental-continuum
#19
REVIEW
Sujatha Jagannathan, Robert K Bradley
Thomas and colleagues (pp. 1122-1133) demonstrate severe dysregulation of developmentally regulated alternative splicing and polyadenylation in congenital myotonic dystrophy (CDM). In doing so, they also highlight the importance of these post-transcriptional processes during normal fetal muscle development. Finally, they generate and characterize a mouse model of CDM that lacks all three Muscleblind-like proteins.
June 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28716942/maternal-photoperiod-programs-hypothalamic-thyroid-status-via-the-fetal-pituitary-gland
#20
Cristina Sáenz de Miera, Béatrice Bothorel, Catherine Jaeger, Valérie Simonneaux, David Hazlerigg
In wild mammals, offspring development must anticipate forthcoming metabolic demands and opportunities. Within species, different developmental strategies may be used, dependent on when in the year conception takes place. This phenotypic flexibility is initiated before birth and is linked to the pattern of day length (photoperiod) exposure experienced by the mother during pregnancy. This programming depends on transplacental communication via the pineal hormone melatonin. Here, we show that, in the Siberian hamster (Phodopus sungorus), the programming effect of melatonin is mediated by the pars tuberalis (PT) of the fetal pituitary gland, before the fetal circadian system and autonomous melatonin production is established...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
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