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Fetal Growth restriction

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https://www.readbyqxmd.com/read/28819007/effects-of-antenatal-melatonin-therapy-on-lung-structure-in-growth-restricted-newborn-lambs
#1
Graeme R Polglase, Jade Barbuto, Beth J Allison, Tamara Yawno, Amy Elizabeth Sutherland, Atul Malhotra, Keith E Schulze, Euan M Wallace, Graham Jenkin, Sharon D Ricardo, Suzanne L Miller
BACKGROUND: Oxidative stress arising from suboptimal placental function contributes to a multitude of pathologies in infants compromised by fetal growth restriction (FGR). FGR infants are at high risk for respiratory dysfunction after birth and poor long-term lung function. OBJECTIVES: To investigate the contribution of oxidative stress to adverse lung development and the effects of melatonin administration, a powerful anti-oxidant, on lung structure in FGR lambs...
August 17, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28818013/relationship-between-doppler-findings-and-fetal-brain-apparent-diffusion-coefficient-in-early-onset-intra-uterine-growth-restriction
#2
Mehmet Serdar Kutuk, Murside Sahin, Sureyya Burcu Gorkem, Selim Doganay, Ahmet Ozturk
OBJECTIVE: The aim of the study is to assess the relationship between uteroplacental Doppler sonography findings and cerebral diffusion measured by diffusion-weighted magnetic resonance imaging (DWI) in fetuses with early- onset intrauterine growth restriction (IUGR). MATERIAL AND METHODS: The study included 54 pregnant women with fetal IUGR and 15 healthy controls (n: 15). Fetuses with IUGR were classified into 4 groups based on Doppler findings: group 1 (n = 12), umbilical artery (UA) pulsatility index (PI) >95pc; group 2 (n = 11), UA PI > 95 pc and middle cerebral artery PI <5pc; group 3 (n = 21), absent end-diastolic (A-EDF) in UA; group 4 (n = 10), reversed EDF in UA...
August 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28817998/defining-fetal-growth-restriction-abdominal-circumference-as-an-alternative-criterion
#3
Steve Rad, S Beauchamp, C Morales, J Mirocha, T F Esakoff
PURPOSE: The purpose of this study is to determine if using abdominal circumference percentile (AC) to define fetal growth restriction (FGR) improves ultrasound at ≥36 weeks as a screening test for small for gestational age (SGA). MATERIALS AND METHODS: All non-anomalous singletons undergoing ultrasound at a single center at ≥36 weeks during 12/2008-5/2014 were included. FGR was defined as (estimated fetal weight) estimated fetal weight (EFW) and/or abdominal circumference (AC) < 10 for gestational age (GA)...
August 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28816587/dna-methylation-independent-growth-restriction-and-altered-developmental-programming-in-a-mouse-model-of-preconception-male-alcohol-exposure
#4
Richard C Chang, William M Skiles, S Chronister Sarah, Haiqing Wang, Gabrielle I Sutton, Yudhishtar S Bedi, Matthew Snyder, Charles R Long, Michael C Golding
The preconception environment is a significant modifier of dysgenesis and the development of environmentally-induced disease. To date, Fetal Alcohol Spectrum Disorders (FASDs) have been exclusively associated with maternal exposures, yet emerging evidence suggests male-inherited alterations in the developmental program of sperm may be relevant to the growth-restriction phenotypes of this condition. Using a mouse model of voluntary consumption, we find chronic preconception male ethanol exposure associates with fetal growth restriction, decreased placental efficiency, abnormalities in cholesterol trafficking, sex-specific alterations in the genetic pathways regulating hepatic fibrosis, and disruptions in the regulation of imprinted genes...
August 17, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28808079/the-impact-of-iugr-on-pancreatic-islet-development-and-%C3%AE-cell-function
#5
Brit H Boehmer, Sean W Limesand, Paul J Rozance
Placental insufficiency is a primary cause of intrauterine growth restriction (IUGR). IUGR increases the risk of developing type 2 diabetes mellitus (T2DM) throughout life, which indicates that insults from placental insufficiency impair β-cell development during the perinatal period because β-cells have a central role in the regulation of glucose tolerance. The severely IUGR fetal pancreas is characterized by smaller islets, less β-cells, and lower insulin secretion. Because of the important associations among impaired islet growth, β-cell dysfunction, impaired fetal growth, and the propensity for T2DM, significant progress has been made in understanding the pathophysiology of IUGR and programing events in the fetal endocrine pancreas...
August 14, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28801297/-effect-of-metformin-on-insulin-resistance-during-catch-up-growth-in-mice-with-fetal-growth-restriction
#6
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/28798930/adverse-pregnancy-outcomes-of-patients-with-history-of-first-trimester-recurrent-spontaneous-abortion
#7
Jing Yang, Yan Wang, Xiao-Ye Wang, Yan-Yu Zhao, Jing Wang, Yang-Yu Zhao
Although a history of first-trimester recurrent spontaneous abortion (FRSA) is regarded as a risk factor in antenatal care, the characteristic of subsequent pregnancy outcome is not clearly elucidated. Here, a retrospective analysis was performed on the clinical data of 492 singleton pregnant women. 164 of them with the history of FRSA were enrolled in study group, compared to 328 deliveries without the history of FRSA. For maternal outcomes, patients in the study group delivered earlier with mean gestational age and the incidences of cesarean section and postpartum hemorrhage were higher compared to the control group...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28796394/maternal-haemodynamics-in-normal-pregnancies-and-in-pregnancies-affected-by-pre-eclampsia
#8
Daniel Stott, Obianuju Nzelu, Kypros H Nicolaides, Nikos A Kametas
OBJECTIVES: To determine if in a high risk group in the first half of pregnancy, women who developed pre-eclampsia (PE) with fetal growth restriction (PE-FGR) demonstrate distinct haemodynamics compared to those with PE in the absence of FGR (PE-only). METHODS: Cardiac output (CO), peripheral vascular resistance (PVR) and mean arterial pressure (MAP) were measured at the first hospital visit at 9-24 weeks' gestation in 69 women who had chronic hypertension and 67 who had a hypertensive disorder in a previous pregnancy...
August 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28796236/genetic-disruption-of-the-oncogenic-hmga2-plag1-igf2-pathway-causes-fetal-growth-restriction
#9
Walid Abi Habib, Frédéric Brioude, Thomas Edouard, James T Bennett, Anne Lienhardt-Roussie, Frédérique Tixier, Jennifer Salem, Tony Yuen, Salah Azzi, Yves Le Bouc, Madeleine D Harbison, Irène Netchine
PurposeFetal growth is a complex process involving maternal, placental and fetal factors. The etiology of fetal growth retardation remains unknown in many cases. The aim of this study is to identify novel human mutations and genes related to Silver-Russell syndrome (SRS), a syndromic form of fetal growth retardation, usually caused by epigenetic downregulation of the potent fetal growth factor IGF2.MethodsWhole-exome sequencing was carried out on members of an SRS familial case. The candidate gene from the familial case and two other genes were screened by targeted high-throughput sequencing in a large cohort of suspected SRS patients...
August 10, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28794456/activated-nk-cells-cause-placental-dysfunction-and-miscarriages-in-fetal-alloimmune-thrombocytopenia
#10
Issaka Yougbaré, Wei-She Tai, Darko Zdravic, Brigitta Elaine Oswald, Sean Lang, Guangheng Zhu, Howard Leong-Poi, Dawei Qu, Lisa Yu, Caroline Dunk, Jianhong Zhang, John G Sled, Stephen J Lye, Jelena Brkić, Chun Peng, Petter Höglund, B Anne Croy, S Lee Adamson, Xiao-Yan Wen, Duncan J Stewart, John Freedman, Heyu Ni
Miscarriage and intrauterine growth restriction (IUGR) are devastating complications in fetal/neonatal alloimmune thrombocytopenia (FNAIT). We previously reported the mechanisms for bleeding diatheses, but it is unknown whether placental, decidual immune cells or other abnormalities at the maternal-fetal interface contribute to FNAIT. Here we show that maternal immune responses to fetal platelet antigens cause miscarriage and IUGR that are associated with vascular and immune pathologies in murine FNAIT models...
August 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28794104/prenatal-hypoxia-and-placental-oxidative-stress-linkages-to-developmental-origins-of-cardiovascular-disease
#11
Mais M Aljunaidy, Jude S Morton, Christy-Lynn Cooke, Sandra T Davidge
Intrauterine growth restriction (IUGR, a pregnancy complication where the fetus does not reach its genetic growth potential) is a leading cause of fetal morbidity and mortality with a significant impact on population health. IUGR is associated with gestational hypoxia; which can lead to placental oxidative stress and fetal programming of cardiovascular disease. Mitochondria are a major source of placental oxidative stress and may provide a therapeutic target to mitigate the detrimental effects of placental oxidative stress on pregnancy outcomes...
August 9, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28791818/combined-screening-for-early-and-late-pre-eclampsia-and-intrauterine-growth-restriction-by-maternal-history-uterine-artery-doppler-mean-arterial-pressure-and-biochemical-markers
#12
Ewelina Litwińska, Magdalena Litwińska, Przemysław Oszukowski, Krzysztof Szaflik, Piotr Kaczmarek
BACKGROUND: Pre-eclampsia is a systemic disease connected with high maternal and fetal morbidity and mortality. Despite significant progress achieved in perinatal medicine, pre-eclampsia is still one of the most significant current problems in obstetrics. OBJECTIVES: The aim of the study was to establish diagnostic algorithms for early and late pre-eclampsia (PE) and intrauterine growth restriction (IUGR). MATERIAL AND METHODS: A total of 320 pregnant women between 11 + 0 and 13 + 6 weeks of gestation were recruited for a case-control study...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28791264/prediction-of-pregnancy-complication-occurrence-using-fetal-cardiac-output-assessments-made-by-ultrasonography-at-20-to-24-weeks-of-gestation
#13
Ji Yeon Lee, Young Li Kim, Ji Eun Jeong, Jun Woo Ahn
OBJECTIVE: To evaluate the importance of assessment of fetal cardiac output (CO) for the prediction of complications of pregnancy. METHODS: We evaluated 65 fetuses and all of them had a fetal cardiac scan at 20 to 24 weeks of pregnancy. To measure CO, diameters (d) of the left right ventricle outflow tract were measured just above the valves. Each left CO (LCO) and right CO (RCO) was derived using the following equation: CO = velocity time integral × π × d(2)/4 × heart rate...
July 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28789711/does-growth-restriction-increase-the-vulnerability-to-acute-ventilation-induced-brain-injury-in-newborn-lambs-implications-for-future-health-and-disease
#14
B J Allison, S B Hooper, E Coia, G Jenkin, A Malhotra, V Zahra, A Sehgal, M Kluckow, A W Gill, T Yawno, G R Polglase, M Castillo-Melendez, S L Miller
Fetal growth restriction (FGR) and preterm birth are frequent co-morbidities, both are independent risks for brain injury. However, few studies have examined the mechanisms by which preterm FGR increases the risk of adverse neurological outcomes. We aimed to determine the effects of prematurity and mechanical ventilation (VENT) on the brain of FGR and appropriately grown (AG, control) lambs. We hypothesized that FGR preterm lambs are more vulnerable to ventilation-induced acute brain injury. FGR was surgically induced in fetal sheep (0...
August 9, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28782502/society-for-maternal-fetal-medicine-smfm-consult-series-43-hepatitis-c-in-pregnancy-screening-treatment-and-management
#15
Brenna L Hughes, Charlotte M Page, Jeffrey A Kuller
In the United States, 1-2.5% of pregnant women are infected with hepatitis C virus (HCV), which carries an approximately 5% risk of transmission from mother to infant. HCV can be transmitted to the infant in utero or during the peripartum period, and infection during pregnancy is associated with increased risk of adverse fetal outcomes, including fetal growth restriction and low birth weight. The purpose of this document is to discuss the current evidence regarding HCV in pregnancy and to provide recommendations on screening, treatment, and management of this disease during pregnancy...
August 3, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28782233/re-descriptive-analysis-of-different-phenotypes-of-cardiac-remodeling-in-fetal-growth-restriction-m-rodr%C3%A3-guez-l%C3%A3-pez-m-cruz-lemini-b-valenzuela-alcaraz-l-garcia-otero-m-sitges-b-bijnens-e-gratac%C3%A3-s-and-f-crispi-ultrasound-obstet-gynecol-2017-50-207-214
#16
https://www.readbyqxmd.com/read/28782171/longitudinal-growth-assessment-for-the-prediction-of-adverse-perinatal-outcome-in-sga-suspected-fetuses
#17
Javier Caradeux, Elisenda Eixarch, Edurne Mazarico, Tri Rahmat Basuki, Eduard Gratacos, Francesc Figueras
BACKGROUND: Fetal growth restriction (FGR) is associated with an increased risk of adverse perinatal outcome (APO). However, distinguishing this condition from smallness-for-gestational age remains elusive. A set of criteria has recently been proposed for such purpose, including the severity of smallness, Doppler parameters and growth velocity. OBJECTIVES: To establish whether the use of growth velocity adds to Doppler evaluation in predicting APO among SGA-suspected fetuses...
August 7, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28781260/-impairments-of-placental-amino-acid-metabolism-in-fetal-growth-restriction
#18
T N Pogorelova, V O Gunko, V V Avrutskaya, L V Kaushanskaya, O A Durnitsyna
The content of the amino acids in the placenta during physiological pregnancy and fetal growth restriction (FGR) has been investigated my means of the method of ion-exchange chromatography. It has been found that in FGR the placental amino acid pool is characterized by a decreased content of arginine, proline, alanine, serine, cysteine, methionine, tryptophan, leucine, threonine, tyrosine, phenylalanine, glutamine and an increased content of dicarboxylic amino acids, lysine, histidine and glycine. These changes are accompanied by altered activity of some enzymes of amino acid metabolism, and the degree of these changes correlates with the level of corresponding amino acids...
May 2017: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/28774704/lim-kinase-function-and-renal-growth-potential-role-for-lim-kinases-in-fetal-programming-of-kidney-development
#19
Alexander J Sparrow, Dylan Sweetman, Simon J M Welham
AIMS: Maternal dietary restriction during pregnancy impairs nephron development and results in offspring with fewer nephrons. Cell turnover in the early developing kidney is altered by exposure to maternal dietary restriction and may be regulated by the LIM-kinase family of enzymes. We set out to establish whether disturbance of LIM-kinase activity might play a role in the impairment of nephron formation. MAIN METHODS: E12.5 metanephric kidneys and HK2 cells were grown in culture with the pharmacological LIM-kinase inhibitor BMS5...
July 31, 2017: Life Sciences
https://www.readbyqxmd.com/read/28774363/-quantitative-evaluation-of-white-matter-development-in-fetus-with-growth-restriction-by-diffusion-tensor-imaging
#20
Hua-Wei Wang, Bing Wu, Jing Liu, Fang Liu, Xin-Huai Wu, Ming-Mei Ge
OBJECTIVE: To investigate whether fetal growth restriction (FGR) has an adverse effect on white matter development. METHODS: A total of 28 full-term small for gestational age (SGA) infants were enrolled as study subjects and 15 full-term appropriate for gestational age infants were enrolled as control group. Conventional head magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) were performed for all infants. The white matter was divided into 122 regions...
August 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
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