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https://www.readbyqxmd.com/read/28640798/evaluation-of-placental-and-fetal-tissue-specimens-for-zika-virus-infection-50-states-and-district-of-columbia-january-december-2016
#1
Sarah Reagan-Steiner, Regina Simeone, Elizabeth Simon, Julu Bhatnagar, Titilope Oduyebo, Rebecca Free, Amy M Denison, Demi B Rabeneck, Sascha Ellington, Emily Petersen, Joy Gary, Gillian Hale, M Kelly Keating, Roosecelis B Martines, Atis Muehlenbachs, Jana Ritter, Ellen Lee, Alexander Davidson, Erin Conners, Sarah Scotland, Kayleigh Sandhu, Andrea Bingham, Elizabeth Kassens, Lou Smith, Kirsten St George, Nina Ahmad, Mary Tanner, Suzanne Beavers, Brooke Miers, Kelley VanMaldeghem, Sumaiya Khan, Ingrid Rabe, Carolyn Gould, Dana Meaney-Delman, Margaret A Honein, Wun-Ju Shieh, Denise J Jamieson, Marc Fischer, Sherif R Zaki
Zika virus infection during pregnancy can cause congenital microcephaly and brain abnormalities (1), and detection of Zika virus RNA in clinical and tissue specimens can provide definitive laboratory evidence of recent Zika virus infection. Whereas duration of viremia is typically short, prolonged detection of Zika virus RNA in placental, fetal, and neonatal brain tissue has been reported and can provide key diagnostic information by confirming recent Zika virus infection (2). In accordance with recent guidance (3,4), CDC provides Zika virus testing of placental and fetal tissues in clinical situations where this information could add diagnostic value...
June 23, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28636758/fetal-overnutrition-and-offspring-insulin-resistance-and-%C3%AE-cell-function-the-exploring-perinatal-outcomes-among-children-epoch-study
#2
K A Sauder, C W Hockett, B M Ringham, D H Glueck, D Dabelea
AIMS: To examine the associations of intrauterine exposure to maternal diabetes and obesity with offspring insulin resistance, β-cell function and oral disposition index in a longitudinal observational study of ethnically diverse offspring. METHODS: A total of 445 offspring who were exposed (n=81) or not exposed (n=364) to maternal diabetes in utero completed two fasting blood measurements at mean (sd) ages of 10.5 (1.5) and 16.5 (1.2) years, respectively, and an oral glucose tolerance test at the second visit...
June 21, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28635162/chlamydia-trachomatis-is-responsible-for-lipid-vacuolation-in-the-amniotic-epithelium-of-fetal-gastroschisis
#3
Marcia L Feldkamp, Diane M Ward, Theodore J Pysher, Christina T Chambers
BACKGROUND: Vacuolated amniotic epithelium with lipid droplets in gastroschisis placentas is an unusual finding. Mass spectrometry of lipid droplets identified triglycerides, ester-linked to an unusual pattern of fatty acids. We hypothesize that these findings result from a Chlamydia trachomatis infection during the periconceptional period. The rising incidence of chlamydia infections has paralleled the increasing prevalence of gastroschisis among women less than 25 years of age. Histologically, young women are at greatest risk for a chlamydia infection due to their immature columnar epithelium, the preferential site for attachment of Chlamydia trachomatis infectious particle (elementary body)...
June 21, 2017: Birth defects research
https://www.readbyqxmd.com/read/28633489/effects-of-early-pregnancy-on-uterine-lymphocytes-and-endometrial-expression-of-immune-regulatory-molecules-in-dairy-heifers1
#4
Sreelakshmi Vasudevan, Manasi M Kamat, Sadhat S Walusimbi, Joy L Pate, Troy L Ott
Natural killer (NK) cells are essential for establishment of human and rodent pregnancies. The function of these and other cytotoxic T cells (CTL) is controlled by stimulatory and inhibitory signaling. A role for cytotoxic cells during early pregnancy in cattle has not been described, but regulation of their function at the fetal-maternal interface is thought to be critical for conceptus survival. The hypothesis that the relative abundance of CTL and expression of inhibitory signaling molecules is increased by the conceptus during early pregnancy was tested...
June 19, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28630397/fetal-hypotrophy-is-an-important-marker-in-diagnosis-of-preeclampsia-in-pregnant-patients-after-solid-organ-transplantation
#5
Anna Cyganek, Bronisława Pietrzak, Filip A Dąbrowski, Zoulikha Jabiry-Zieniewicz, Marcin Chlebus, Mirosław Wielgos, Barbara Grzechocińska
BACKGROUND The purpose of this study was to use a multidisciplinary approach to define the importance of fetal growth disturbances in pregnant patients after renal or liver transplantation in diagnosis and treatment of preeclampsia. MATERIAL AND METHODS We assessed 108 pregnancies in patients with renal or liver transplants. Statistical analysis included Pearson's chi-square test and Fisher's exact test. RESULTS In the renal transplant (RTR) group, preeclampsia was diagnosed in 40% according to ISSHP. In the liver transplant (LTR) group, ISSHP guidelines allow this diagnose in 14...
June 20, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28629568/repeatability-of-estimated-fetal-weight-comparison-between-mr-imaging-versus-2d-ultrasound-in-at-and-near-term-patients
#6
Caroline Kadji, Margaux F Camus, Elisa Bevilacqua, Mieke M Cannie, Teresa Cos Sanchez, Jacques C Jani
INTRODUCTION: Our aim was to evaluate the intra- and inter-observer variability and the impact of operator experience on the estimation of fetal weight (EFW) as measured by 2-dimensional ultrasound (2D-US) and magnetic resonance (MR) imaging. MATERIAL AND METHODS: We estimated fetal weight in 46 singleton pregnancies at 35.6-41.4 weeks gestation using 2D-US according to the Hadlock formula and using MR imaging according to the equation developed by Baker. Each examination was performed twice, once by an inexperienced operator and once by an experienced operator...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28629248/the-relationship-of-maternal-fetal-attachment-and-depression-with-social-support-in-pregnant-women-referring-to-health-centers-of-tabriz-iran-2016
#7
Mina Delavari, Mojgan Mirghafurvand, Sakineh Mohammad-Alizadeh-Charandabi
PURPOSE: The objective of this study was to determine the relationship of maternal-fetal attachment and depression during pregnancy with social support. METHODS: This cross sectional study was done on 287 primipara women. The data collection tools used included a demographic characteristics questionnaire, Maternal-Fetal Attachment Scale, the Edinburgh Postnatal Depression Scale and the Social Support Scale. Pearson's correlation test and general linear model were used for data analysis...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28628915/mir-495-promotes-senescence-of-mesenchymal-stem-cells-by-targeting-bmi-1
#8
Xiujun Li, Yuxian Song, Dan Liu, Jiaojiao Zhao, Jingjing Xu, Jing Ren, Yali Hu, Zhiqun Wang, Yayi Hou, Guangfeng Zhao
BACKGROUND/AIMS: Mesenchymal stem cells (MSCs) play an important role in regulating angiogenesis and immune balance. Abnormal proliferation and function of MSCs were reported at maternal fetal interface in patients with pre-eclampsia (PE). Micro-RNA-495 was known to be upregulated in the MSCs derived from patients with PE. However, it is not clear whether the up-regulated miR-495 is related to the pathogenesis of PE. METHODS: We analyzed the expression of miR-495 in MSCs and umbilical cords derived from healthy pregnancies (NC) and PE, then we upregulated or downregulated the expression of miR-495 in MSCs derived from NC and tested the proliferation, apoptosis, migration, invasion, tube formation and senescence...
June 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28628847/the-importance-of-declining-insulin-requirements-during-pregnancy-in-patients-with-pre-gestational-gestational-diabetes-mellitus
#9
Maya Ram, Larissa Feinmesser, Shiri Shinar, Sharon Maslovitz
OBJECTIVE: In patients with pre-gestational and gestational diabetes mellitus (GDM), insulin requirements often increase during the third trimester of pregnancy in order to maintain proper glycemic control. However, a fraction of patients demonstrate a significant decrease in insulin requirements in late gestation. We aimed to evaluate the clinical significance of decreasing insulin requirements in patients with pre-gestational diabetes and GDM with respect to fetal wellbeing and pregnancy outcome...
June 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28626073/increased-vascular-and-uteroplacental-matrix-metalloproteinase-1-and-7-levels-and-collagen-i-deposition-in-hypertension-in-pregnancy-role-of-tnf
#10
Wei Li, Ning Cui, Marc Q Mazzuca, Karina M Mata, Raouf A Khalil
Preeclampsia is manifested as maternal hypertension-in-pregnancy (HTN-Preg) and fetal growth restriction. Placental ischemia could be an initiating event; however, the molecular targets and intermediary mechanisms are unclear. We tested the hypothesis that placental ischemia could target vascular and uteroplacental matrix metalloproteinases (MMPs) through cytokines-mediated mechanism. MMP levels and distribution were measured in aorta, uterus and placenta of normal pregnant rats (Preg), and pregnant rats with reduced uterine perfusion pressure (RUPP)...
June 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28624747/who-is-most-affected-by-prenatal-alcohol-exposure-boys-or-girls
#11
Philip A May, Barbara Tabachnick, Julie M Hasken, Anna-Susan Marais, Marlene M de Vries, Ronel Barnard, Belinda Joubert, Marise Cloete, Isobel Botha, Wendy O Kalberg, David Buckley, Zachary R Burroughs, Heidre Bezuidenhout, Luther K Robinson, Melanie A Manning, Colleen M Adnams, Soraya Seedat, Charles D H Parry, H Eugene Hoyme
OBJECTIVE: To examine outcomes among boys and girls that are associated with prenatal alcohol exposure. METHODS: Boys and girls with fetal alcohol spectrum disorders (FASD) and randomly-selected controls were compared on a variety of physical and neurobehavioral traits. RESULTS: Sex ratios indicated that heavy maternal binge drinking may have significantly diminished viability to birth and survival of boys postpartum more than girls by age seven...
June 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28624447/enhanced-first-trimester-screening-for-trisomy-21-with-contingent-cell-free-fetal-dna-a-comparative-performance-and-cost-analysis
#12
Tianhua Huang, Wendy S Meschino, Mari Teitelbaum, Shelley Dougan, Nan Okun
OBJECTIVE: Prenatal screening for trisomy 21 is a standard of care. Emerging cell-free fetal DNA (cffDNA) technologies can improve screening performance, but they are expensive. This study was conducted to propose a contingent screening model that would incorporate cffDNA technology, would remain affordable, and could be applied equitably in a publically funded system. METHODS: Using performance and cost parameters from published literature, four prenatal screening strategies were compared...
June 14, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28623979/placental-glucose-transporter-glut-1-is-down-regulated-in-preeclampsia
#13
Benjamin P Lüscher, Camilla Marini, Marianne S Joerger-Messerli, Xiao Huang, Matthias A Hediger, Christiane Albrecht, Marc U Baumann, Daniel V Surbek
INTRODUCTION: Transplacental fetal glucose supply is predominantly regulated by glucose transporter-1 (GLUT1). Altered expression and/or function of GLUT1 may affect the intrauterine environment, which could compromise fetal development and may contribute to fetal programming. To date it is unknown whether placental GLUT1 is affected by preeclampsia, which is often associated with intrauterine growth restriction (IUGR). We addressed the hypothesis that preeclampsia leads to decreased expression and function of placental GLUT1...
July 2017: Placenta
https://www.readbyqxmd.com/read/28623970/localization-of-the-placental-bcrp-abcg2-transporter-to-lipid-rafts-role-for-cholesterol-in-mediating-efflux-activity
#14
John T Szilagyi, Anna M Vetrano, Jeffrey D Laskin, Lauren M Aleksunes
INTRODUCTION: The breast cancer resistance protein (BCRP/ABCG2) is an efflux transporter in the placental barrier. By transporting chemicals from the fetal to the maternal circulation, BCRP limits fetal exposure to a range of drugs, toxicants, and endobiotics such as bile acids and hormones. The purpose of the present studies was to 1) determine whether BCRP localizes to highly-ordered, cholesterol-rich lipid raft microdomains in placenta microvillous membranes, and 2) determine the impact of cholesterol on BCRP-mediated placental transport in vitro...
July 2017: Placenta
https://www.readbyqxmd.com/read/28623846/sonocad-a-software-to-solve-the-dilemma-of-the-prenatal-diagnosis-of-fetal-syndromes
#15
Mahmoud Abdelnaby, Abdulmeneam Fawzi, Manal Swelem, Hisham Elgammal, Hamdy Elgammal
OBJECTIVE: The aim of this work is to develop an efficient, user friendly, time saving computer software program specified with prenatal diagnosis, based solely on ultrasound findings provided by the sonographer. MATERIALS AND METHOD: SonoCAD (Sonographyic Computer Assisted Diagnosis) program was developed in 4 phases. Phase I, data gathering phase. Phase II the software development phase in which the source code of the software was developed. Phase III, system testing phase, was divided into 2 steps...
June 17, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28622703/qualitative-determination-of-human-chorionic-gonadotropin-in-vaginal-washings-for-the-early-diagnosis-of-premature-rupture-of-fetal-membranes
#16
Camila Buziquia Dartibale, Nelson Shozo Uchimura, Luiz Nery, Angelita Polato Schumeish, Liza Yurie Teruya Uchimura, Rosangela Getirana Santana, Taqueco Teruya Uchimura
Purpose This study aimed to evaluate and validate the qualitative human chorionic gonadotropin β subunit (β-hCG) test of the vaginal fluid washings of pregnant women with premature rupture of fetal membranes (PROM). Methods Cross-sectional study of pregnant women between gestational weeks 24 and 39 who underwent consultations in one of our institutions. They were divided into two groups: group A (pregnant women clinically diagnosed with PROM) and group B (pregnant women without loss of amniotic liquid)...
June 16, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28622418/severe-apparently-isolated-fetal-ventriculomegaly-and-neurodevelopmental-outcome
#17
Mathilde Letouzey, Alexandra Chadie, Marie Brasseur-Daudruy, François Proust, Eric Verspyck, Pascal Boileau, Stéphane Marret
OBJECTIVE: To assess the neurodevelopmental outcome of children with a prenatal diagnosis of apparently isolated severe ventriculomegaly (SVM). METHOD: Retrospective cohort study from 1994 to 2011. We included fetuses with unilateral or bilateral ventriculomegaly equal to or greater than 15 mm at prenatal ultrasound and confirmed by Magnetic Resonance Imaging, whose parents chose continuation of pregnancy past 22 weeks, and with no associated findings at diagnosis (i...
June 16, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28622144/a-technological-advance-for-21st-century-obstetricians-the-electronically-controlled-vacuum-extractor
#18
Nicola Perone
OBJECTIVE: To describe an innovative electronically-controlled vacuum extractor (VE) in detail and to illustrate its performance characteristics, as observed in a laboratory study. DESIGN: Thirty simulated, vacuum-assisted deliveries. MAIN OUTCOME MEASURE(S): (1) The ability to measure in real-time of the pull applied and to sound an alert, when the traction approaches the negative pressure under the cup, to prevent its detachment. (2) The recording and printing of a graphic representation of the pull applied (vacuum delivery graph)...
June 5, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28621052/10p15-3p13-duplication-inherited-from-paternal-balance-translocation-46-xy-t-5-10-q35-1-p13-identified-on-non-invasive-prenatal-testing
#19
Jin Mei, Hao Wang, Liyong Zhan
Balanced reciprocal translocations are relatively common human genetic abnormalities that involve the exchange of the terminal segments between different chromosomes and have an approximately 5-80% chance of generating an embryo with chromosomal abnormalities. Non-invasive prenatal testing (NIPT) has been increasingly used in clinical practice to detect fetal trisomies 21, 18 and 13 with a sensitivity and specificity of up to 99%. In this report, we describe a duplication on chromosome 10 and a deletion on chromosome 5 that were first detected on NIPT...
June 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28619691/a-mouse-model-of-antepartum-stillbirth
#20
Anum Rahman, Lindsay S Cahill, Yu-Qing Zhou, Johnathan Hoggarth, Monique Y Rennie, Mike Seed, Christopher K Macgowan, John C Kingdom, S Lee Adamson, John G Sled
BACKGROUND: Many stillbirths of normally-formed fetuses in the third trimester could be prevented via delivery if reliable means to anticipate this outcome existed. However, since the etiology of these stillbirths is often unexplained and, although the underlying mechanism is presumed to be hypoxia from "placental insufficiency", the placentas often appear normal on histopathologic examination. Gestational age is a risk factor for antepartum stillbirth, with a rapid rise in stillbirth rates after 40 weeks gestation...
June 12, 2017: American Journal of Obstetrics and Gynecology
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