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https://www.readbyqxmd.com/read/29045850/comparison-of-conventional-2d-ultrasound-to-mr-imaging-for-prenatal-estimation-of-birth-weight-in-twin-pregnancy
#1
Caroline Kadji, Elisa Bevilacqua, Ivan Hurtado, Andrew Carlin, Mieke M Cannie, Jacques C Jani
BACKGROUND: During prenatal follow-up of twin pregnancies, accurate identification of birthweight and birthweight discordance is important in order to identify the high risk group and plan perinatal care. Unfortunately prenatal evaluation of birthweight discordance by 2-dimensional ultrasound (US) has been far from optimal. OBJECTIVE: To prospectively compare estimates of fetal weight based on 2-dimensional US (US-EFW) and MR imaging (MR-EFW) to actual birth weight in women carrying twin pregnancies...
October 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29042488/natural-killer-cells-mediate-pathophysiology-in-response-to-reduced-uterine-perfusion-pressure
#2
Jamil Elfarra, Lorena M Amaral, Maggie McCalmon, Jeremy D Scott, Mark W Cunningham, Ashley Gnam, Tarek Ibrahim, Babbette LaMarca, Denise C Cornelius
Preeclampsia is associated with hypertension, small-for-gestational-age babies and increased cytolytic natural killer (NK) cells. The specific role of cytolytic NK cells in the pathophysiology of preeclampsia has not been clearly defined. We hypothesized that Reduced Uterine Perfusion Pressure (RUPP) stimulates proliferation and cytolytic activation of NK cells, and that reducing NK cells in RUPP would prevent hypertension, intrauterine growth restriction, and inflammation in response to placental ischemia...
October 17, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29041923/fetal-heart-rate-abnormalities-during-and-after-external-cephalic-version-which-fetuses-are-at-risk-and-how-are-they-delivered
#3
Simone M Kuppens, Ida Smailbegovic, Saskia Houterman, Ingrid de Leeuw, Tom H Hasaart
BACKGROUND: Fetal heart rate abnormalities (FHR) during and after external cephalic version (ECV) are relatively frequent. They may raise concern about fetal wellbeing. Only occasionally they may lead to an emergency cesarean section. METHODS: Prospective cohort study in 980 women (> 34 weeks gestation) with a singleton fetus in breech presentation. During and after external cephalic version (ECV) FHR abnormalities were recorded. Obstetric variables and delivery outcome were evaluated...
October 17, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29039974/role-of-kidney-biomarkers-kidney-injury-molecule-1-calbindin-interleukin-18-and-monocyte-chemoattractant-protein-1-in-hiv-associated-pre-eclampsia
#4
Soumaya Abdullatif Eltounali, Jagidesa Moodley, Thajasvarie Naicker
OBJECTIVE: Both HIV infection and pre-eclampsia (PE) are associated with considerable maternal mortality in South Africa. This study was designed to compare the urinary levels of kidney injury molecule-1 (KIM-1), calbindin, interleukin-18 (IL-18), and monocyte chemoattractant protein-1 (MCP-1) in HIV associated normotensive and preeclamptic pregnancies. METHODS: Following ethical approval and written consent, urine samples were collected from HIV negative (HIV -ve) normotensive pregnant (n = 19), HIV positive (HIV +ve) normotensive pregnant (n = 19), HIV -ve pre-eclamptic (n = 19) and HIV +ve pre-eclamptic (n = 19) women...
October 17, 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/29023931/evaluation-of-the-right-and-left-ventricles-an-integrated-approach-measuring-the-area-length-and-width-of-the-chambers-in-normal-fetuses
#5
Greggory R DeVore, Berthold Klas, Gary Satou, Mark Sklansky
INTRODUCTION: The purpose of this study was to simultaneously measure with speckle tracking software (STS) the end-diastolic ventricular area (A), basal transverse width (BW), mid-chamber transverse width, (MW) and the basal-apical length (BAL) in normal fetuses and those with pathology. METHODS: The 4-chamber view of the fetal heart was obtained in 200 control fetuses between 20 and 40 weeks of gestation and in nine 3rd trimester fetuses with heart malformations...
October 10, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29020825/the-yield-of-the-prenatal-work-up-in-intrauterine-growth-restriction-and-the-spectrum-of-fetal-abnormalities-detected-postnatally
#6
Rivka Sukenik-Halevy, Adi Katz, Rivka Regev, Ofer Markovitch, Reuven Sharony, Yael Ganor Paz, Tal Biron-Shental
OBJECTIVE: To evaluate the yield of work-up in intrauterine growth restriction (IUGR) pregnancies and their outcomes. MATERIALS AND METHODS: Retrospective data regarding prenatal work-up (serology, genetic testing and imaging), and neonatal outcomes of 198 IUGR pregnancies (estimated fetal weight < 10th percentile) were analyzed. RESULTS: IUGR was isolated in 72. Work-up performed in 158 (80%) cases was positive in 4 (2.5%). No abnormalities were detected in prenatal genetic testing...
October 11, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29019748/doppler-us-in-the-evaluation-of-fetal-growth-and-perinatal-health
#7
Kristen R Uquillas, Brendan H Grubbs, Ashley E Prosper, Ramen H Chmait, Edward G Grant, Daphne K Walker
Fetal growth restriction is commonly defined as an estimated fetal weight (EFW) that is below the 10th percentile for gestational age. It is associated with an increased risk of intrauterine demise, neonatal morbidity, and neonatal death; therefore, antenatal detection and surveillance with the optimization of delivery timing are necessary to improve pregnancy outcomes. If the estimated due date has been verified and the EFW is below the 10th percentile for gestational age, the underlying cause should be investigated, since the clinical management, outcome, and counseling options are largely dependent on the cause of the growth restriction...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28994140/fetal-lung-volume-and-pulmonary-artery-changes-in-congenital-heart-disease-with-decreased-pulmonary-blood-flow-quantitative-ultrasound-analysis
#8
Yong Guo, Xiaowei Liu, Xiaoyan Gu, Ye Zhang, Lin Sun, Yihua He
BACKGROUND: It has been reported that congenital heart disease with decreased pulmonary blood flow (CHD-DPBF) may affect postnatal lung morphogenesis and function. However, there has been a lack of information regarding the impact of CHD-DPBF on prenatal fetal lung development. METHODS: Fifty-four fetuses with CHD-DPBF were compared with 110 controls. Fetal lung volume (FLV) was estimated using three-dimensional ultrasonography (3D-US). Estimated fetal weight (EFW) and McGoon index (MGI) were estimated using two-dimensional ultrasonography (2D-US)...
October 10, 2017: Echocardiography
https://www.readbyqxmd.com/read/28992178/tadalafil-improves-l-ng-nitroarginine-methyl-ester-induced-preeclampsia-with-fetal-growth-restriction-like-symptoms-in-pregnant-mice
#9
Kento Yoshikawa, Takashi Umekawa, Shintaro Maki, Michiko Kubo, Masafumi Nii, Kayo Tanaka, Hiroaki Tanaka, Kazuhiro Osato, Yuki Kamimoto, Eiji Kondo, Kenji Ikemura, Masahiro Okuda, Kan Katayama, Takekazu Miyoshi, Hiroshi Hosoda, Ning Ma, Toshimichi Yoshida, Tomoaki Ikeda
BACKGROUND: We investigated the efficacy and mechanisms of tadalafil, a selective phosphodiesterase 5 inhibitor, in treating preeclampsia (PE) with fetal growth restriction (FGR) using L-NG-nitroarginine methyl ester (L-NAME)-induced PE with FGR in pregnant mice as our experimental model. METHODS: C57BL/6 mice were divided into 2 groups 11 days postcoitum (d.p.c.). A control group of dams (C dam) received 0.5% carboxymethylcellulose (CMC). A L-NAME-treated group received 1 mg/ml L-NAME dissolved in CMC...
August 3, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28982731/studies-in-genetically-modified-mice-implicate-maternal-hdl-as-a-mediator-of-fetal-growth
#10
Sandra L Rebholz, John T Melchior, W Sean Davidson, Helen N Jones, Jeffrey A Welge, Andrew M Prentice, Sophie E Moore, Laura A Woollett
Studies in humans have shown a direct association between maternal plasma cholesterol concentrations and infant birthweight. Similarly, previous studies in our laboratory have shown that chow-fed mice lacking apolipoprotein (apo) A-I, the major protein in HDL, have low HDL-cholesterol (HDL-C) concentrations and smaller fetuses in midgestation. In the current study, we measured fetal weights in mice with varying levels of apoA-I gene dose (knockout, wild-type, and transgenic) and examined metabolic pathways known to affect fetal growth...
October 5, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28979321/teratogenic-effects-of-intravitreal-injection-of-bevacizumab-in-a-pregnant-rat-model
#11
Shahram Bamdad, Mina Bamdad, Mahsa Khanlari, Yahya Daneshbod, Behzad Khademi
In this research study, to investigate teratogenic effect of intravitreal injection of bevacizumab in pregnant rat model, twenty seven female Wistar rats were inseminated. Pregnant rats were divided into 6 groups (three groups as case and three as control groups). Each case and control groups were divided according to the day of intravitreal injections (day 2, 10 and 18). Rats in the case groups received 4 µL intravitreal injection of bevacizumab and the control groups received the same volume of distilled water...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/28978539/maternal-weight-gain-and-associations-with-longitudinal-fetal-growth-in-dichorionic-twin-pregnancies-a-prospective-cohort-study
#12
Stefanie N Hinkle, Mary L Hediger, Sungduk Kim, Paul S Albert, William Grobman, Roger B Newman, Deborah A Wing, Jagteshwar Grewal, Cuilin Zhang, Germaine M Buck Louis, Katherine L Grantz
Background: Maternal metabolic demands are much greater with twin gestations; however, there are no accepted recommendations for maternal weight gain in twin pregnancies.Objective: We assessed the association of maternal weight gain and fetal growth in dichorionic twins throughout pregnancy.Design: This was a prospective US cohort study (n = 143, 2012-2013) of dichorionic twin pregnancies with known birth outcomes followed from enrollment (11-13 wk) and for ≤6 research visits throughout gestation. Maternal prepregnancy weight was self-reported, and current weight was measured at each research visit and abstracted from prenatal records...
October 4, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28974131/assessment-of-human-placental-perfusion-by-intravoxel-incoherent-motion-mr-imaging
#13
Nathalie Siauve, Pierre Humbert Hayot, Benjamin Deloison, Gihad E Chalouhi, Marianne Alison, Daniel Balvay, Laurence Bussières, Olivier Clément, Laurent J Salomon
PURPOSE: To provide functional information on the human placenta, including perfusion, and diffusion, with no contrast agent injection, and to study correlations between intravoxel incoherent motion (IVIM) placental parameters and fetal growth. MATERIALS AND METHODS: MRI was performed in women undergoing legal termination of pregnancy at 17-34 weeks, including a 4-b-value and 11-b-value DW sequences. The apparent diffusion coefficient (ADC), the restricted diffusion coefficient (D), the pseudoperfusion coefficient (D*), and the perfusion fraction (f) were calculated...
October 3, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28968527/prenatal-exposure-to-mercury-and-longitudinally-assessed-fetal-growth-relation-and-effect-modifiers
#14
Ferran Ballester, Carmen Iñiguez, Mario Murcia, Mònica Guxens, Mikel Basterretxea, Marisa Rebagliato, Jesús Vioque, Aitana Lertxundi, Ana Fernandez-Somoano, Adonina Tardon, Jordi Sunyer, Sabrina Llop
BACKGROUND: Prenatal mercury exposure has been related to reductions in anthropometry at birth. Levels of mercury have been reported as being relatively elevated in the Spanish population. OBJECTIVE: To investigate the relation between prenatal exposure to mercury and fetal growth. METHODS: Study subjects were pregnant women and their newborns (n:1867) participating in a population-based birth cohort study set up in four Spanish regions from the INMA Project...
September 28, 2017: Environmental Research
https://www.readbyqxmd.com/read/28960393/combined-influence-of-gestational-weight-gain-and-estimated-fetal-weight-on-risk-assessment-for-small-or-large-for-gestational-age-birth-weight-a-prospective-cohort-study
#15
Sarah J Pugh, Stefanie N Hinkle, Sungduk Kim, Paul S Albert, Roger Newman, William A Grobman, Deborah A Wing, Katherine L Grantz
OBJECTIVES: To evaluate the frequency with which gestational weight gain and estimated fetal weight do not track across gestation and to assess the risk of small-for-gestational-age (SGA) and large-for-gestational-age (LGA) birth weight as a function of tracking. METHODS: This study included a pregnancy cohort (2009-2013) of 2438 women from 4 racial/ethnic groups in the United States. We calculated race- and trimester-specific gestational weight gain and estimated fetal weight z scores...
September 29, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28948356/inhibition-of-the-receptor-for-advanced-glycation-end-products-rage-protects-from-secondhand-smoke-shs-induced-intrauterine-growth-restriction-iugr-in-mice
#16
Joshua B Lewis, Camilo Mejia, Clinton Jordan, Troy D Monson, Jared S Bodine, Todd M Dunaway, Kaleb M Egbert, Adam L Lewis, Tanner J Wright, K Connor Ogden, Dallin S Broberg, Parker D Hall, Shawn M Nelson, Kelsey M Hirschi, Paul R Reynolds, Juan A Arroyo
Intrauterine growth restriction (IUGR) is a disease affecting 10% of all pregnancies. IUGR is associated with maternal, fetal, or placental abnormalities. Studies investigating the effects of secondhand smoke (SHS) exposure and IUGR are limited. The receptor for advanced glycation end-products (RAGE) is a pro-inflammatory transmembrane receptor increased by SHS in the placenta. We tested the hypothesis that inhibition of RAGE during SHS exposure protects from smoke-induced IUGR. C57BL/6 mice were exposed to SHS or SHS + semi-synthetic glycosaminoglycan ethers (SAGEs) known to inhibit RAGE signaling...
September 26, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28939424/maternal-early-pregnancy-vitamin-d-status-in-relation-to-low-birth-weight-and-small-for-gestational-age-offspring
#17
Huiping Wang, Yanfeng Xiao, Lan Zhang, Qiong Gao
Maternal vitamin D deficiency is an independent risk factor for fetal growth. We examined the associations between maternal vitamin D status (defined by 25-hydroxyvitamin D [25(OH)D]) at the first prenatal visit and measures of newborn and placental weight, in a large China cohort of singleton, term, live births. From July 2015 to June 2016, women delivering singleton, term, live births with 25(OH)D measured at a first prenatal visit (N=747). Birth weight, placental weight, the placental to fetal weight ratio, and small for gestational age (SGA) were measured...
September 20, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28938051/pregnancy-disorders-in-africa-and-the-obstetric-dilemma
#18
Annettee Nakimuli, Ashley Moffett
The high neonatal and maternal morbidity and mortality associated with the extremes of birth weight is referred to as the obstetric dilemma. Pre-eclampsia and other conditions that lead to low birth weight are considered as the Great Obstetrical Syndromes (GOS). At the other extreme is high birth weight resulting in obstructed labour. Fetal weight largely depends on placental function and defective placentation is a common feature of the GOS. There is evidence that the local uterine immune system (KIR and HLA-C) regulates placentation, with racial differences noted...
December 1, 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28930668/aspects-of-sexual-precocity-and-morphometry-of-uterus-placenta-and-embryos-fetuses-in-piau-breed-and-commercial-line-gilts
#19
José Carlos Montes, Jurandy Mauro Penitente-Filho, Simone Eliza Facioni Guimarães, Paulo Sávio Lopes, Breno Soares Camilo, Hugo Hideki Shiomi, Daniel Araújo Lima, Rogério Oliveira Pinho, Jhonata Vieira Tavares do Nascimento Pereira, Denise Silva Okano, Karine Assis Costa, José Domingos Guimarães
In view of the importance of the genetic material of local breeds in the swine industry and the lack of information about reproductive performance of Piau females, two experiments were conducted to evaluate puberty and sexual maturity as well as the morphometry of embryos/fetuses, placenta and uterus during the first 90 days of gestation in Piau breed and Commercial line gilts. In experiment I, 37 Piau and 25 commercial line gilts were used. From the 120 days of age, detection of estrus was performed using mature boars from the first to third estrus of each gilt...
September 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28930491/fetal-and-infant-growth-patterns-and-risk-of-lower-lung-function-and-asthma-the-generation-r-study
#20
Herman T den Dekker, Vincent W V Jaddoe, Irwin K Reiss, Johan C de Jongste, Liesbeth Duijts
BACKGROUND: Children with lower birth weight are at increased risk of asthma symptoms. We examined associations of fetal and infant growth with childhood lung function and asthma. METHODS: This study was embedded in a population-based prospective cohort study among 5,635children. Growth was estimated by repeated ultrasounds in 2nd and 3th trimester, and measured at birth and at 3, 6 and 12 months. At age 10 years, spirometry was performed and asthma was assessed by parental questionnaire...
September 20, 2017: American Journal of Respiratory and Critical Care Medicine
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