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Fetal Growth restriction

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https://www.readbyqxmd.com/read/28329054/whole-heart-detailed-and-quantitative-anatomy-myofibre-structure-and-vasculature-from-x-ray-phase-contrast-synchrotron-radiation-based-micro-computed-tomography
#1
Anna Gonzalez-Tendero, Chong Zhang, Vedrana Balicevic, Rubén Cárdenes, Sven Loncaric, Constantine Butakoff, Bruno Paun, Anne Bonnin, Patricia Garcia-Cañadilla, Emma Muñoz-Moreno, Eduard Gratacós, Fatima Crispi, Bart Bijnens
Background: While individual cardiac myocytes only have a limited ability to shorten, the heart efficiently pumps a large volume-fraction thanks to a cell organization in a complex 3D fibre structure. Subclinical subtle cardiac structural remodelling is often present before symptoms arise. Understanding and early detection of these subtle changes is crucial for diagnosis and prevention. Additionally, personalized computational modelling requires knowledge on the multi-scale structure of the whole heart and vessels...
March 15, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28327604/chymase-producing-cells-of-the-innate-immune-system-are-required-for-decidual-vascular-remodeling-and-fetal-growth
#2
Nicole Meyer, Katja Woidacki, Martin Knöfler, Gudrun Meinhardt, Désirée Nowak, Philipp Velicky, Jürgen Pollheimer, Ana C Zenclussen
Intrauterine growth restriction (IUGR) is caused by insufficient remodeling of spiral arteries (SAs). The mechanism underlying the relevance of natural killer cells (NKs) and mast cells (MCs) for SA remodeling and its effects on pregnancy outcome are not well understood. We show that NK depletion arrested SA remodeling without affecting pregnancy. MC depletion resulted in abnormally remodeled SAs and IUGR. Combined absence of NKs and MCs substantially affected SA remodeling and impaired fetal growth. We found that α-chymase mast cell protease (Mcpt) 5 mediates apoptosis of uterine smooth muscle cells, a key feature of SA remodeling...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#3
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28322267/exposure-of-pregnant-mice-to-triclosan-impairs-placental-development-and-nutrient-transport
#4
Xinyuan Cao, Xu Hua, Xiaoli Wang, Ling Chen
Triclosan (TCS) is associated with spontaneous abortions and fetal growth restriction. Here, we showed that when pregnant mice were treated with 8 mg/kg TCS (8-TCS mice) on gestational days (GD) 6-18 fetal body weights were lower than controls. Placental weights and volumes were reduced in 8-TCS mice. The placental proliferative cells and expression of PCNA and Cyclin D3 on GD13 were remarkably decreased in 8-TCS mice. The decreases in activities and expression of placental System A amino acid or glucose transporters on GD14 and GD17 were observed in 8-TCS mice...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28320344/risk-factors-associated-with-adverse-perinatal-outcome-in-planned-vaginal-breech-labors-at-term-a-retrospective-population-based-case-control-study
#5
Georg Macharey, Mika Gissler, Veli-Matti Ulander, Leena Rahkonen, Mervi Väisänen-Tommiska, Mika Nuutila, Seppo Heinonen
BACKGROUND: Vaginal breech delivery is associated with adverse perinatal outcome. The aim of this study was to identify factors associated with adverse perinatal outcome in term breech pregnancies, and to provide clinicians an aid in selecting women for a trial of vaginal labor with the fetus in breech position. METHODS: We conducted a retrospective, nationwide, Finnish population-based case-control study. All planned singleton vaginal deliveries at term with the fetus in breech position between the years 2005 and 2014 were analyzed...
March 20, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28320232/evaluation-of-the-adequacy-of-hadlock-s-reference-chart-for-identification-of-fetuses-with-growth-restriction
#6
Ana Lúcia de Freitas Alves, Ana Alice Vidal de Carvalho, José Antônio Bastos de Carvalho, Israel Figueiredo
OBJECTIVE: This study aimed to verify whether Hadlock's reference values for fetal weight identify fetuses below the 10th percentile in our population correctly. METHODS: The fitness of the Hadlock reference range to our study population was tested by assessment of Z scores. We evaluated differences between the reference weight ranges proposed in our study and those recommended by Hadlock. RESULTS: Z scores for Hadlock reference values were non-normally distributed...
March 21, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28315889/patterns-of-growth-in-early-childhood-and-infectious-disease-and-nutritional-determinants
#7
Robert E Black
The physical growth of young children in low- and middle-income countries is reduced compared to international standards. The deviations in growth in both weight and height are greatest in the first 2 years of life and this has serious consequences for child mortality, development, adult stature, and health. The determinants of these patterns of growth faltering include intergenerational factors, such as maternal height, short birth interval, and conditions in pregnancy, including maternal underweight and anemia...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28306539/three-dimensional-power-doppler-of-the-placenta-and-its-clinical-applications
#8
Kelly Yamasato, Ivica Zalud
The aim of this review is to discuss three dimensional (3D) power Doppler of the placenta and its clinical applications. There is a strong clinical need to develop noninvasive, simple and widely available methods of evaluating in vivo placental function to assess fetal wellbeing. While conventional ultrasound is a proven tool in the evaluation of fetal structural anomalies and health, its ability to assess placental function, especially prior to the onset of fetal compromise, is the subject of ongoing investigation...
March 17, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28302957/relationship-between-asymmetric-dimethylarginine-in-umbilical-cord-plasma-and-birth-weight-follows-a-u-shaped-curve
#9
Junji Takaya, Yuko Tanabe, Yuichi Kuroyanagi, Kazunari Kaneko
Asymmetric dimethylarginine (ADMA) is a nonselective nitric oxide (NO) synthase inhibitor associated with cardiovascular and metabolic disorders. NO regulates placental blood flow, which plays an important role in fetal growth. Many epidemiological studies have disclosed that restricted fetal growth is associated with an increased risk of insulin resistance in adult life. We studied the relationship between ADMA in cord blood and birth size. Nine small for gestational age (SGA) and 32 appropriate for gestational age (AGA) infants were studied...
March 7, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28298706/an-assessment-of-fetal-cerebral-and-hepatic-perfusion-in-normal-pregnancy-and-pre-eclampsia-using-three-dimensional-ultrasound
#10
Susan Addley, Amanda Ali, Stephen Ong
BACKGROUND: Pre-eclampsia and placental causes of intrauterine growth restriction (IUGR) are part of the same spectrum of disorders. In IUGR, there is preferential shunting of blood to the fetal brain at the expense of other organs. We wanted to demonstrate that this also occurs in pre-eclampsia using three dimensional (3D) ultrasound. The 3D indices of perfusion are: flow index (FI), vascular index (VI) and vascularisation flow index (VFI) which reflect tissue vascularity and flow intensity...
January 2017: Ulster Medical Journal
https://www.readbyqxmd.com/read/28295749/nitric-oxide-no-donors-and-haemodynamic-changes-in-fetal-growth-restriction
#11
G M Tiralongo, I Pisani, B Vasapollo, A Khalil, B Thilaganathan, H Valensise
OBJECTIVE: To evaluate maternal cardiovascular effects of nitric oxide (NO) donors in pregnancies complicated by fetal growth restriction (FGR) METHODS: 26 women with a diagnosis of FGR were treated with transdermal patches of NO donors and plasma volume expansion. We compared the treated group to a control historical FGR untreated group of patients evaluated longitudinally. We obtained haemodynamic indices using UltraSonic Cardiac Output Monitor system. RESULTS: At enrolment, the two groups were similar in terms of maternal and haemodynamic characteristics...
March 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28295167/poorer-detection-rates-of-severe-fetal-growth-restriction-in-women-of-likely-refugee-background-a%C3%A2-case-for-re-focusing-pregnancy-care
#12
Mary Anne Biro, Christine East
BACKGROUND: Severe fetal growth restriction (FGR) (< third centile) in a singleton pregnancy undelivered by 40 weeks is one of a number of Victorian Perinatal Services Performance Indicators, which aim to provide a measure of the quality and safety of maternity care. Women of refugee background have been found to have poorer perinatal outcomes compared to others and these outcomes can in part be explained by previous history. However, less access to and engagement with pregnancy care may also be contributing factors...
March 13, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28293472/learning-and-memory-disabilities-in-iugr-babies-functional-and-molecular-analysis-in-a-rat-model
#13
Marta Camprubí Camprubí, Rafel Balada Caballé, Juan A Ortega Cano, Maria de Los Angeles Ortega de la Torre, Cristina Duran Fernández-Feijoo, Montserrat Girabent-Farrés, Josep Figueras-Aloy, Xavier Krauel, Soledad Alcántara
INTRODUCTION: 1Intrauterine growth restriction (IUGR) is the failure of the fetus to achieve its inherent growth potential, and it has frequently been associated with neurodevelopmental problems in childhood. Neurological disorders are mostly associated with IUGR babies with an abnormally high cephalization index (CI) and a brain sparing effect. However, a similar correlation has never been demonstrated in an animal model. The aim of this study was to determine the correlations between CI, functional deficits in learning and memory and alterations in synaptic proteins in a rat model of IUGR...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293436/placental-vitamin-d-binding-protein-expression-in-human-idiopathic-fetal-growth-restriction
#14
Alice F Wookey, Tejasvy Chollangi, Hannah E J Yong, Bill Kalionis, Shaun P Brennecke, Padma Murthi, Harry M Georgiou
Vitamin D-binding protein is a multifunctional serum protein with multiple actions related to normal health. Vitamin D-binding protein transports vitamin D and influences the metabolism of this key hormone but it also has additional immunomodulatory and actin-clearing properties. We investigated whether vitamin D-binding protein expression is altered in fetal growth restriction-associated placental dysfunction. Protein was extracted from 35 placentae derived from 17 healthy control subjects and 18 gestation-matched subjects with fetal growth restriction (FGR)...
2017: Journal of Pregnancy
https://www.readbyqxmd.com/read/28292463/key-players-of-the-necroptosis-pathway-ripk1-and-sirt2-are-altered-in-placenta-from-preeclampsia-and-fetal-growth-restriction
#15
Natalie J Hannan, Sally Beard, Natalie K Binder, Kenji Onda, Tu'uhevaha J Kaitu'u-Lino, Qi Chen, Laura Tuohey, Manarangi De Silva, Stephen Tong
INTRODUCTION: Preeclampsia (PE) and fetal growth restriction (FGR) are among the leading causes of perinatal morbidity and mortality. Placental insufficiency is central to these conditions. The mechanisms underlying placental insufficiency are poorly understood. Apoptosis has long been considered the only form of regulated cell death, recent research has identified an alternate process of programmed cell death known as necroptosis [1]. Necroptosis is distinct from apoptosis, relying on the deacetylase sirtuin-2 [2], receptor interacting kinases RIPK1 and 3, and the pseudokinase MLKL [3]...
March 2017: Placenta
https://www.readbyqxmd.com/read/28285426/fetal-growth-restriction-current-knowledge
#16
REVIEW
Luciano Marcondes Machado Nardozza, Ana Carolina Rabachini Caetano, Ana Cristina Perez Zamarian, Jaqueline Brandão Mazzola, Carolina Pacheco Silva, Vivian Macedo Gomes Marçal, Thalita Frutuoso Lobo, Alberto Borges Peixoto, Edward Araujo Júnior
BACKGROUND: Fetal growth restriction (FGR) is a condition that affects 5-10% of pregnancies and is the second most common cause of perinatal mortality. This review presents the most recent knowledge on FGR and focuses on the etiology, classification, prediction, diagnosis, and management of the condition, as well as on its neurological complications. METHODS: The Pubmed, SCOPUS, and Embase databases were searched using the term "fetal growth restriction". RESULTS: Fetal growth restriction (FGR) may be classified as early or late depending on the time of diagnosis...
March 11, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28279149/somatic-growth-in-the-first-six-months-of-life-of-infants-exposed-to-maternal-smoking-in-pregnancy
#17
Mariana Lopes de Brito, Marina Nunes, Juliana Rombaldi Bernardi, Vera Lúcia Bosa, Marcelo Zubaran Goldani, Clécio Homrich da Silva
BACKGROUND: Some studies suggest a relationship between maternal smoking during pregnancy and not only intrauterine fetal growth restriction or low birth weight, but also with changes in the postnatal growth and development. The objective of the present study was to investigate the effects of smoking during pregnancy on infants growth in the first 6 months of life compared with a control group and a group with idiopathic intrauterine growth restriction. METHODS: Longitudinal observational study using a convenience sample of newborns divided into three groups: infants of smoking mothers (tobacco), with idiopathic intrauterine growth restriction (IUGR) and a control group...
March 9, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28279117/progression-of-doppler-changes-in-early-onset-small-for-gestational-age-fetuses-how-frequent-are-the-different-progression-sequences
#18
José Morales-Roselló, Asma Khalil, Victoria Fornés-Ferrer, José Alberola-Rubio, David Hervas-Marín, Núria Peralta Llorens, Alfredo Perales-Marín
OBJECTIVE: To evaluate the progression of Doppler abnormalities in early-onset fetal smallness (SGA). METHODS: 948 Doppler examinations of the umbilical artery (UA), middle cerebral artery (MCA) and ductus venosus (DV), belonging to 405 early-onset SGA fetuses, were studied, evaluating the sequences of Doppler progression, the interval examination-labor at which Doppler became abnormal and the cumulative sum of Doppler anomalies in relation with labor proximity...
March 9, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28278506/accuracy-of-middle-cerebral-artery-doppler-assessment-between-34-and-37-weeks-in-fetuses-with-red-cell-alloimmunization
#19
Emeline Maisonneuve, Aude Jayot, Stéphanie Friszer, Vanina Castaigne, Evelyne Cynober, Françoise Pernot, Agnès Mailloux, Jean-Marie Jouannic, Anne Cortey, Bruno Carbonne
BACKGROUND: The Doppler measurement of middle cerebral artery peak systolic velocity (MCA-PSV) is considered the gold standard for the noninvasive detection of moderate to severe anemia. However, the accuracy of this test has not been evaluated so far, specifically beyond 34 weeks. OBJECTIVES: To assess the accuracy of MCA-PSV to detect moderate to severe fetal anemia and to identify risk factors associated with false-positive and false-negative MCA-PSV values after 34 weeks...
March 10, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28277911/fetal-growth-pathology-score-a-novel-ultrasound-parameter-for-individualized-assessment-of-third-trimester-growth-abnormalities
#20
Russell L Deter, Wesley Lee, John C P Kingdom, Roberto Romero
OBJECTIVES: To study fetal growth in pregnancies at risk for growth restriction using, for the first time, the Fetal Growth Pathology Score [FGPS1]. METHODS: A retrospective cohort study of growth restriction [GR] was carried out in 184 selected SGA singletons using a novel, composite measure of growth abnormalities termed the FGPS1. Serial fetal biometry was used to establish 2(nd) trimester Rossavik size models and determine FGPS1 values prior to delivery. FGPS1 data were compared to neonatal growth outcomes assessed using Growth Potential Realization Index [GPRI] values [average negative pathological GPRI {av -pGPRI}]...
March 1, 2017: Journal of Maternal-fetal & Neonatal Medicine
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