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https://www.readbyqxmd.com/read/28209489/the-systematic-error-in-the-estimation-of-fetal-weight-and-the-underestimation-of-fetal-growth-restriction
#1
Justin R Lappen, Stephen A Myers
Fetal growth restriction (FGR) is associated with an increased risk of perinatal morbidity and mortality and has lifetime implications for the risk of chronic medical conditions. Antenatal diagnosis of fetal growth restriction (FGR) remains poor with the majority of cases remaining undiagnosed. While several factors contribute to the underdiagnosis of FGR, the error in ultrasound estimation of fetal weight (EFW) is generally not considered in clinical practice. In this commentary, we suggest that the intrinsic, or systematic, error in ultrasound EFW is a significant factor contributing to the underestimation of fetuses predicted to have FGR and should be incorporated into screening and surveillance recommendations...
February 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28203387/an-overview-of-available-drugs-for-management-of-opioid-abuse-during-pregnancy
#2
REVIEW
Jillian Laslo, Jon-Michael Brunner, Daniel Burns, Emily Butler, Autumn Cunningham, Ryan Killpack, Courtney Pyeritz, Kimberly Rinard, Jennifer Childers, Joseph Horzempa
The prevalence of opioid abuse in the United States has been steadily increasing over the last several years among many major demographics, including pregnant women. Rise in prenatal opioid abuse has resulted in subsequent escalation of neonatal abstinence syndrome incidence, prompting the US Congress to pass the Protecting Our Infants Act of 2015. This act specifically calls for a critical review of current treatment options for prenatal opioid abuse which may ultimately lead to the development of better therapies and a decreased incidence of neonatal abstinence syndrome...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28200173/rna-sequencing-exposes-novel-adaptive-and-immune-responses-to-intrauterine-growth-restriction-in-fetal-sheep-islets
#3
Amy C Kelly, Christopher A Bidwell, Fiona M McCarthy, David J Taska, Miranda J Anderson, Leticia E Camacho, Sean W Limesand
No abstract text is available yet for this article.
February 13, 2017: Endocrinology
https://www.readbyqxmd.com/read/28194805/fetal-adaptations-in-insulin-secretion-result-from-high-catecholamines-during-placental-insufficiency
#4
Sean W Limesand, Paul J Rozance
Placental insufficiency and intrauterine growth restriction (IUGR) of the fetus affects approximately 8% of all pregnancies and is associated with short- and long-term disturbances in metabolism. In pregnant sheep, experimental models with a small, defective placenta that restricts delivery of nutrients and oxygen to the fetus result in IUGR. Low blood oxygen concentrations increase fetal plasma catecholamine concentrations, which lower fetal insulin concentrations. All of these observations in sheep models with placental insufficiency are consistent with cases of human IUGR...
February 14, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28194183/regulation-of-stem-cell-properties-of-m%C3%A3-ller-glia-by-jak-stat-and-mapk-signaling-in-the-mammalian-retina
#5
REVIEW
Krista M Beach, Jianbo Wang, Deborah C Otteson
In humans and other mammals, the neural retina does not spontaneously regenerate, and damage to the retina that kills retinal neurons results in permanent blindness. In contrast to embryonic stem cells, induced pluripotent stem cells, and embryonic/fetal retinal stem cells, Müller glia offer an intrinsic cellular source for regenerative strategies in the retina. Müller glia are radial glial cells within the retina that maintain retinal homeostasis, buffer ion flux associated with phototransduction, and form the blood/retinal barrier within the retina proper...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28193574/effects-of-preterm-birth-and-fetal-growth-retardation-on-life-course-cardiovascular-risk-factors-among-schoolchildren-from-colombia-the-fuprecol-study
#6
Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Emilio Villa-González, Javier Martínez-Torres, Anthony C Hackney, Antonio García-Hermoso
BACKGROUND: Both fetal growth restriction and prematurity have been associated with cardiometabolic risk in youth and adults, however, data on their combined effects on cardiometabolic health in youth are scarce. AIMS: This study aimed at assessing the effects of birth weight and gestational age combined on life-course cardiovascular risk factors and obesity among schoolchildren from Colombia. STUDY DESIGN: A cross-sectional study. SUBJECTS: Participants comprised 2510 Colombian schoolchildren (54...
February 10, 2017: Early Human Development
https://www.readbyqxmd.com/read/28192505/a-perinatal-review-of-singleton-stillbirths-in-an-australian-metropolitan-tertiary-centre
#7
Supuni Kapurubandara, Sarah J Melov, Evangeline R Shalou, Monika Mukerji, Stephen Yim, Ujvala Rao, Zain Battikhi, Nirusha Karunaratne, Roshini Nayyar, Thushari I Alahakoon
It is estimated that everyday 7000 women worldwide have their pregnancy end with a stillbirth, however, research and data collection on stillbirth remains underfunded. This stillbirth case series audit investigates an apparent rise in stillbirths at a Sydney tertiary referral hospital in Australia. A retrospective case series of singleton stillbirths from 2005-2010 was conducted at Westmead Hospital. Stillbirth was defined as per the Perinatal Society of Australia and New Zealand classification as a death of a baby before or during birth, from the 20th week of pregnancy onwards, or a birth weight of 400 grams or more if gestational age is unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28192175/increased-anxiety-like-phenotype-in-female-guinea-pigs-following-reduced-neurosteroid-exposure-in-utero
#8
Angela L Cumberland, Hannah K Palliser, Gabrielle K Crombie, David W Walker, Jonathan J Hirst
Neurosteroids are essential for aiding proper fetal neurodevelopment. Pregnancy compromises such as preterm birth, prenatal stress and intrauterine growth restriction are associated with an increased risk of developing behavioural and mood disorders, particularly during adolescence. These pathologies involve the premature loss or alteration of trophic steroid hormones reaching the fetus leading to impaired neurodevelopment. While the specific programming mechanisms are yet to be fully elucidated, in adult life, dysfunctions of allopregnanolone action are prevalent in individuals with depression, post-traumatic stress disorder and anxiety disorders...
February 9, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28191626/intermittent-auscultation-ia-of-fetal-heart-rate-in-labour-for-fetal-well-being
#9
REVIEW
Ruth Martis, Ova Emilia, Detty S Nurdiati, Julie Brown
BACKGROUND: The goal of fetal monitoring in labour is the early detection of a hypoxic baby. There are a variety of tools and methods available for intermittent auscultation (IA) of the fetal heart rate (FHR). Low- and middle-income countries usually have only access to a Pinard/Laënnec or the use of a hand-held Doppler device. Currently, there is no robust evidence to guide clinical practice on the most effective IA tool to use, timing intervals and length of listening to the fetal heart for women during established labour...
February 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28188770/fetal-and-neonatal-outcomes-of-preterm-infants-born-before-32-weeks-of-gestation-according-to-antenatal-versus-postnatal-assessments-of-restricted-growth
#10
Isabelle Monier, Pierre-Yves Ancel, Anne Ego, Pierre-Henri Jarreau, Cécile Lebeaux, Monique Kaminski, François Goffinet, Jennifer Zeitlin
BACKGROUND: Fetal growth restriction is defined using ultrasound parameters during pregnancy or as a low birthweight for gestational age (GA) after birth, but these definitions are not always concordant. OBJECTIVE: To investigate fetal and neonatal outcomes based on antenatal versus postnatal assessments of growth restriction. STUDY DESIGN: From the EPIPAGE 2 population-based prospective study of very preterm births in France in 2011, we included 2919 singleton non-anomalous infants 24 to 31 weeks' GA...
February 8, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28188592/redirecting-reproductive-immunology-research-toward-pregnancy-as-a-period-of-temporary-immune-tolerance
#11
Norbert Gleicher, Vitaly A Kushnir, David H Barad
Referring to two recent publications, we here propose that clinical reproductive immunology has for decades stagnated because reproductive medicine, including assisted reproduction (AR), has failed to accept embryo implantation as an immune system-driven process, dependent on establishment of maternal tolerance toward the implanting fetal semi-allograft (and complete allograft in cases of oocyte donation). Pregnancy represents a biologically unique period of temporary (to the period of gestation restricted) tolerance, otherwise only known in association with parasitic infections...
February 10, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28186586/-analysis-of-clinical-phenotype-and-genotype-of-unstable-hemoglobin-rush
#12
Shijun Ge, Biqing Yang, Wei Yi, Kai Huang, Hongxian Liu, Xiaoqin Huang, Jiayou Chu, Zhaoqing Yang
OBJECTIVE: To analyze the hematological and genetic characteristics of unstable hemoglobin Rush (Hb Rush) and compound heterozygote of Hb Rush and thalassemia. METHODS: Peripheral blood samples and genomic DNA from three patients (including two ethnic Dai and one Han Chinese) with anemia of undetermined origin were collected. Hematological phenotypes of these patients were determined through red blood cell analysis and hemoglobin electrophoresis. Genotypes of alpha- and beta-globin genes, -158 XmnⅠ polymorphic site of (G)γ promoter region, and haplotypes of 7 polymorphic restriction sites in the beta-globin gene cluster were determined using PCR-based methods and DNA sequencing...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28186000/monitoring-fetal-maturation-objectives-techniques-and-indices-of-autonomic-function
#13
Dirk Hoyer, Jan Zebrowski, Dirk Cysarz, Hernani Goncalves, Adelina Pytlik, Celia Amorim-Costa, Joao Bernardes, Diogo Ayres-de-Campos, Otto Witte, Ekkehard Schleussner, Lisa Stroux, Christopher Redman, Antoniya Georgieva, Stephen Payne, Gari Clifford, Maria Signorini, Giovanni Magenes, Fernando Andreotti, Hagen Malberg, Sebastian Zaunseder, Igor Lakhno, Uwe Schneider
Monitoring the fetal behavior does not only have implications for acute care but also for identifying developmental disturbances that burden the entire later life. The concept, of "fetal programming", also known as "developmental origins of adult disease hypothesis", e.g. applies for cardiovascular, metabolic, hyperkinetic, cognitive disorders. Since the autonomic nervous system is involved in all of those systems, cardiac autonomic control may provide relevant functional diagnostic and prognostic information...
February 10, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28182335/how-to-monitor-pregnancies-complicated-by-fetal-growth-restriction-and-delivery-below-32-weeks
#14
W Ganzevoort, N Mensing van Charante, B Thilaganathan, F Prefumo, B Arabin, C M Bilardo, C Brezinka, J B Derks, A Diemert, J J Duvekot, E Ferrazzi, T Frusca, K Hecher, N Marlow, P Martinelli, E Ostermayer, A T Papageorghiou, D Schlembach, Ktm Schneider, T Todros, A Valcamonico, Gha Visser, A van Wassenaer-Leemhuis, C C Lees, H Wolf
OBJECTIVES: In the recent TRUFFLE study it appeared that, in pregnancies complicated by fetal growth restriction (FGR) between 26 and 32 weeks, monitoring of the ductus venosus (DV) combined with computerised cardiotocography (cCTG) as a trigger for delivery, increased the chance of infant survival without neurological impairment. However, concerns in interpretation were raised as DV monitoring appeared associated with a non-significant increase in fetal death, and part of the infants were delivered after 32 weeks, after which the study protocol was no longer applied...
February 9, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28180962/cardiotocography-and-the-evolution-into-computerised-cardiotocography-in-the-management-of-intrauterine-growth-restriction
#15
REVIEW
Christina Kouskouti, Kerstin Regner, Julia Knabl, Franz Kainer
Timely recognition and appropriate management of high-risk pregnancies, such as intrauterine growth restriction (IUGR), are of paramount importance for every obstetrician. After the initial screening of IUGR fetuses through sonographic fetometry and Doppler, the focus is shifted to the appropriate monitoring and timing of delivery. This can, especially in cases of early IUGR, become a very difficult task. At this point, cardiotocography (CTG) is introduced as a major tool in the day-to-day monitoring of the antenatal well-being of the IUGR fetus...
February 8, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28179126/vitamin-d-deficiency-in-mothers-neonates-and-children
#16
Deena H Elsori, Majeda S Hammoud
Vitamin D is produced in response to the exposure of skin to sunlight through UV-B synthesis. It can also be obtained from diet and dietary supplements. Vitamin D is essential for strong bones as it helps to absorb calcium from diet. Vitamin D deficiency mainly occurs if strict vegetarian diet is followed as mostly the source of vitamin D is animal based; therefore, exposure to sunlight is restricted or having dark skin color. Low vitamin D levels results in increased possibility of gestational diabetes among pregnant women, low birth weight and pre-eclampsia in infants, and mothers may suffer bone impairment, osteoporosis, hypocalcaemia, and hypertension...
February 5, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28178739/methamphetamine-consumption-during-pregnancy-effects-on-child-health
#17
Jürgen Dinger, Patricia Hinner, Jörg Reichert, Mario Rüdiger
Methamphetamine abuse during pregnancy represents an emerging health care problem. The consequences are not only of relevance to the pregnant women, but also their unborn child. It is associated with an increased risk of preeclampsia and hypertension, fetal demise, preterm delivery, and intrauterine growth restriction. The deleterious effects of prenatal methamphetamine exposure on the developing fetal brain may lead to long-term neuro-developmental and behavioral problems.Given the current evidence, abuse of methamphetamine during pregnancy must be of utmost concern to health care professionals and to policy-makers...
February 8, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28176014/breech-presentation-at-term-and-associated-obstetric-risks-factors-a-nationwide-population-based-cohort-study
#18
Georg Macharey, Mika Gissler, Leena Rahkonen, Veli-Matti Ulander, Mervi Väisänen-Tommiska, Mika Nuutila, Seppo Heinonen
PURPOSE: The aim of this study was to estimate whether breech presentation at term was associated with known individual obstetric risk factors for adverse fetal outcome. METHODS: This was a retrospective, nationwide Finnish population-based cohort study. Obstetric risks in all breech and vertex singleton deliveries at term were compared between the years 2005 and 2014. A multivariable logistic regression model was used to determine significant risk factors. RESULTS: The breech presentation rate at term for singleton pregnancies was 2...
February 7, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28169502/physiological-adaptation-of-maternal-plasma-volume-during-pregnancy-a-systematic-review-and-meta-analysis
#19
REVIEW
S de Haas, C Ghossein-Doha, S M J van Kuijk, J van Drongelen, M E A Spaanderman
OBJECTIVE: To describe the physiological pattern of gestational plasma volume adjustments in normal singleton pregnancy and compare this with the pattern in pregnancies complicated by pregnancy-induced hypertension, pre-eclampsia or fetal growth restriction. METHODS: We performed a meta-analysis of the current literature on plasma volume adjustments during physiological and complicated pregnancies. Literature was retrieved from PubMed (NCBI) and EMBASE (Ovid) databases...
February 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28166970/effects-of-intrauterine-growth-restriction-during-late-pregnancy-on-the-cell-apoptosis-and-related-gene-expression-in-ovine-fetal-liver
#20
Yingchun Liu, Chi Ma, Hui Li, Lingyao Li, Feng Gao, Changjin Ao
This study investigated the effect of intrauterine growth restriction (IUGR) during late pregnancy on the cell apoptosis and related gene expression in ovine fetal liver. Eighteen time-mated Mongolian ewes with singleton fetuses were allocated to three groups at d 90 of pregnancy: Restricted Group 1 (RG1, 0.18 MJ ME kg BW(-0.75) d(-1), n = 6), Restricted Group 2 (RG2, 0.33 MJ ME kg BW(-0.75) d(-1), n = 6) and a Control Group (CG, ad libitum, 0.67 MJ ME kg BW (-0.75) d (-1), n = 6). Fetuses were recovered at slaughter on d 140...
March 1, 2017: Theriogenology
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