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https://www.readbyqxmd.com/read/28437601/maternal-hemodynamics-in-normal-pregnancies-reference-ranges-and-the-role-of-maternal-characteristics
#1
Dimuthu Vinayagam, Baskaran Thilaganathan, Oliver Stirrup, Elena Mantovani, Asma Khalil
OBJECTIVES: The main aim of this study was to construct reference ranges of the maternal central hemodynamic parameters during pregnancy. The second aim was to determine the maternal and pregnancy characteristics, which influence these hemodynamic parameters. METHODS: This was a prospective cohort study of low-risk pregnant women attending for routine antenatal care at St George's Hospital, London. The exclusion criteria included any medical disorder present at the time of study recruitment, or development of hypertension or intrauterine fetal growth restriction following study recruitment...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28435991/polycythemia-capillary-rarefaction-and-focal-glomerulosclerosis-in-two-adolescents-born-extremely-low-birth-weight-and-premature
#2
Nariaki Asada, Takanori Tsukahara, Megumi Furuhata, Daisuke Matsuoka, Shunsuke Noda, Kuniaki Naganuma, Akinori Hashiguchi, Midori Awazu
BACKGROUND: Low birthweight infants have a reduced number of nephrons and are at high risk of chronic kidney disease. Preterm birth and/or intrauterine growth restriction (IUGR) may also affect peritubular capillary development, as has been shown in other organs. CASE-DIAGNOSIS/TREATMENT: We report two patients with a history of preterm birth and extremely low birthweight who showed polycythemia and renal capillary rarefaction. Patient 1 and 2, born at 25 weeks of gestation with a birthweight of 728 and 466 g, showed mild proteinuria at age 8 and 6 years, respectively...
April 24, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28435686/apple-dwarfing-rootstocks-exhibit-an-imbalance-in-carbohydrate-allocation-and-reduced-cell-growth-and-metabolism
#3
Toshi M Foster, Peter A McAtee, Chethi N Waite, Helen L Boldingh, Tony K McGhie
Apple dwarfing rootstocks cause earlier shoot termination and reduced root and shoot mass. To identify physiological factors responsible for rootstock-induced growth restriction, we compared vascular-enriched gene expression between two dwarfing rootstocks ('M27' and 'M9') and the vigorous rootstock 'M793' using RNA sequencing and quantitative reverse transcriptase PCR. Differentially expressed genes common to both dwarfing rootstocks belonged to five main biological processes: (1) primary metabolism, (2) cell wall synthesis and modification, (3) secondary metabolism, (4) hormone signalling and response and (5) redox homeostasis...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28429366/analysis-of-transcriptional-activities-of-angiogenic-biomarkers-during-intrauterine-complications-leading-to-preterm-birth
#4
M Rabajdová, R Dudič, P Urban, V Dudičová, P Urdzík, M Mareková
OBJECTIVE: Pre-eclampsia, growth retardation and preterm delivery are the most common reasons leading to increased maternal and perinatal mortality. The increased expression of hypoxia induced factors, such as HIF-1, triggers the overexpression of anti-angiogenic genes. The aim of this study was to determine the transcriptional activity of individual pro- and anti-angiogenic markers (VEGF, HIF-1, sEng, Flt-1, PlGF-1) in maternal blood samples from patients with spontaneous preterm labor, preterm labor in combination with pre-eclampsia and fetal growth restriction in comparison with physiologically terminated pregnancies...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28426650/neural-injury-markers-in-intrauterine-growth-restriction-and-their-relation-to-perinatal-outcomes
#5
E Mazarico, E Llurba, R Cumplido, A Valls, J C Melchor, M Iglesias, L Cabero, E Gratacós, Md Gómez Roig
BACKGROUND: The aims of this study were to: (1) compare the concentrations of two neural injury markers, S100B protein and neuron-specific enolase (NSE), in intrauterine growth-restricted fetuses (IUGR) and in fetuses with appropriate growth-for-gestational-age (AGA), and (2) investigate potential relationships between concentrations of these markers, Doppler abnormalities, and adverse perinatal or neonatal outcomes. METHODS: This was a case-controlled, cooperative, prospective study among Spanish Maternal and Child Health Network (Retic SAMID) hospitals...
April 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28425994/modulating-the-therapeutic-response-of-tumours-to-dietary-serine-and-glycine-starvation
#6
Oliver D K Maddocks, Dimitris Athineos, Eric C Cheung, Pearl Lee, Tong Zhang, Niels J F van den Broek, Gillian M Mackay, Christiaan F Labuschagne, David Gay, Flore Kruiswijk, Julianna Blagih, David F Vincent, Kirsteen J Campbell, Fatih Ceteci, Owen J Sansom, Karen Blyth, Karen H Vousden
The non-essential amino acids serine and glycine are used in multiple anabolic processes that support cancer cell growth and proliferation (reviewed in ref. 1). While some cancer cells upregulate de novo serine synthesis, many others rely on exogenous serine for optimal growth. Restriction of dietary serine and glycine can reduce tumour growth in xenograft and allograft models. Here we show that this observation translates into more clinically relevant autochthonous tumours in genetically engineered mouse models of intestinal cancer (driven by Apc inactivation) or lymphoma (driven by Myc activation)...
April 19, 2017: Nature
https://www.readbyqxmd.com/read/28423082/comparative-analysis-of-two-different-models-of-swimming-applied-to-pregnant-rats-born-small-for-pregnant-age
#7
Silvana B Corvino, Débora C Damasceno, Yuri K Sinzato, Aline O Netto, Nathália C D Macedo, Elena Zambrano, Gustavo T Volpato
The aim of this study was to compare two models of swimming applied to pregnant rats born small for pregnancy age (SPA). Diabetes was chemically induced in adult female rats to develop an inadequate intrauterine environment, leading to birth of a SPA offspring. In adulthood, the female SPA rats were mated and submitted to different swimming programs. The exercise program 1 (Ex1) consisted of swimming for 15 minutes, followed by 15 minutes of rest and another 15 minutes of swimming, 3 days a week before and during pregnancy...
January 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28423052/inflammation-induced-fetal-growth-restriction-in-rats-is-associated-with-increased-placental-hif-1%C3%AE-accumulation
#8
Kevin P Robb, Tiziana Cotechini, Camille Allaire, Arissa Sperou, Charles H Graham
INTRODUCTION: Hypoxia-inducible factor 1-alpha (HIF-1α) is the oxygen-sensitive subunit of the transcription factor HIF-1, and its expression is increased in placentas from pregnancies complicated by pre-eclampsia (PE). Fetal growth restriction (FGR) and PE often share a common pathophysiology; however, it is unknown whether increased placental HIF-1α occurs in FGR. We previously demonstrated that aberrant maternal inflammation in rats resulted in altered utero-placental perfusion and FGR, both of which were prevented by administration of the nitric oxide mimetic glyceryl trinitrate (GTN)...
2017: PloS One
https://www.readbyqxmd.com/read/28421700/growth-characteristics-and-endocrine-abnormalities-in-22q11-2-deletion-syndrome
#9
Yael Levy-Shraga, Doron Gothelf, Zohar Goichberg, Uriel Katz, Raz Somech, Orit Pinhas-Hamiel, Dalit Modan-Moses
22q11.2 deletion syndrome (22q11.2DS) has a wide range of clinical features including endocrine abnormalities. We aimed to characterize growth patterns, hypoparathyroidism, and thyroid dysfunction of individuals with 22q11.2DS. Anthropometric and laboratory measurements were obtained from the charts of 48 individuals (males=28, 8.0±6.8 visits/participant) followed at a national 22q11.2DS clinic between 2009 and 2016. Age at diagnosis was 4.3±4.9 years and age at last evaluation 11.2±7.2 years. Median height-SDS was negative at all ages...
May 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28421190/first-trimester-crown-rump-length-and-embryonic-volume-of-fetuses-with-structural-congenital-abnormalities-measured-in-virtual-reality-an-observational-study
#10
L Baken, B Benoit, A H J Koning, P J van der Spek, E A P Steegers, N Exalto
Background. With the introduction of three-dimensional (3D) ultrasound it has become possible to measure volumes. The relative increase in embryonic volume (EV) is much larger than that of the crown-rump length (CRL) over the same time period. We examined whether EV is a better parameter to determine growth restriction in fetuses with structural congenital abnormalities. Study Design, Subjects, and Outcome Measures. CRL and EV were measured using a Virtual Reality (VR) system in prospectively collected 3D ultrasound volumes of 56 fetuses diagnosed with structural congenital abnormalities in the first trimester of pregnancy (gestational age 7(+5) to 14(+5) weeks)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28420745/eight-principles-for-patient-centred-and-family-centred-care-for-newborns-in-the-neonatal-intensive-care-unit
#11
Jean-Michel Roué, Pierre Kuhn, Maria Lopez Maestro, Ragnhild Agnethe Maastrup, Delphine Mitanchez, Björn Westrup, Jacques Sizun
Despite the recent improvements in perinatal medical care leading to an increase in survival rates, adverse neurodevelopmental outcomes occur more frequently in preterm and/or high-risk infants. Medical risk factors for neurodevelopmental delays like male gender or intrauterine growth restriction and family sociocultural characteristics have been identified. Significant data have provided evidence of the detrimental impact of overhelming environmental sensory inputs, such as pain and stress, on the developing human brain and strategies aimed at preventing this impact...
April 18, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28420514/detection-of-mosaic-15q11-1-q11-2-deletion-encompassing-nbeap1-and%C3%A2-poteb-in-a-fetus-with-diffuse-lymphangiomatosis
#12
Chih-Ping Chen, Kuo-Gon Wang, Hsu-Kuang Huang, Cheng-Ran Peng, Schu-Rern Chern, Peih-Shan Wu, Yen-Ni Chen, Shin-Wen Chen, Chen-Chi Lee, Wayseen Wang
OBJECTIVE: We present cytogenetic and molecular cytogenetic diagnoses of mosaic deletion of chromosome 15q11.1-q11.2 in a fetus with diffuse lymphangiomatosis. CASE REPORT: A 33-year-old woman underwent amniocentesis at 22 weeks of gestation because of fetal diffuse lymphangiomatosis involving left-side chest, abdominal cavity, thigh and vulva, and intrauterine growth restriction. Amniocentesis revealed a karyotype of 46,XX,del(15) (q11.1q11.2)[9]/46,XX[26]. The mother had a karyotype of 46,XX...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28419500/antepartum-management-and-obstetric-outcomes-among-pregnancies-with-down-syndrome-from-diagnosis-to-delivery
#13
Stephanie H Guseh, Sarah E Little, Katherine Bennett, Virginia Silva, Louise E Wilkins-Haug
OBJECTIVE: Little is known about the obstetric care of an ongoing pregnancy with trisomy 21. We sought to ascertain an obstetric profile for pregnancies with Down syndrome to help guide antenatal management. METHOD: Pregnancies managed for delivery with trisomy 21 between 2003 and 2014 were analyzed. We reviewed demographic data, diagnostic testing, antenatal surveillance, obstetrics outcomes, and placental pathology. T-test, chi-square, and Fisher correction were used as indicated...
April 17, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28419371/sleep-a-window-into-autonomic-control-in-children-born-preterm-and-growth-restricted
#14
Stephanie R Yiallourou, Euan M Wallace, Christie Whatley, Alexsandria Odoi, Samantha Hollis, Aidan J Weichard, Jayan Shivanandhan Muthusamy, Suraj Varma, James Cameron, Om Narayan, Rosemary Sc Horne
Study Objectives: Preterm birth and fetal growth restriction (FGR) are both associated with risk of hypertension in adulthood. Mechanisms leading to this pathology are unclear. In children aged 5-12 years, who were born preterm and FGR, we used sleep as a tool to assess autonomic control with assessment of cardiovascular structure and function. Methods: 18 children born preterm and FGR, 15 born preterm with appropriate birth weights (AGA) and 20 AGA term-born children were studied...
April 17, 2017: Sleep
https://www.readbyqxmd.com/read/28416068/-treatment-with-low-dose-acetylsalicylic-acid-can-reduce-risk-of-pre-eclampsia-in-high-risk-pregnant-women
#15
Line Vedel Käehne, Ingeborg Christina Rørbye Lundin
Pre-eclampsia is a major contributor to perinatal morbidity and mortality. Large studies of high-risk pregnant women have shown reduced risk of developing pre-eclampsia when they are treated with low-dose acetylsalicylic acid in early pregnancy. Treatment is also effective in preventing intrauterine growth restriction, preterm birth and perinatal death. No major side effects, including risk of malformations or miscarriage, are reported. It is important that general practitioners are aware of women who have an increased risk of developing pre-eclampsia, so that treatment with 100 mg of acetylsalicylic acid can be started early in pregnancy...
April 3, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28415865/-placental-gene-activity-of-significant-angiogenetic-factors-in-the-background-of-intrauterine-growth-restriction
#16
Péter Kovács, Attila Rab, Imre Szentpéteri, József Gábor Joó, László Kornya
Placental vascular endothelial growth factor A (VEGF-A) gene and endoglin gene are both overexpressed in placental samples obtained from pregnancies with intrauterine growth restriction compared to normal pregnancies. In the background of these changes a mechanism can be supposed, in which the increased endoglin activity in intrauterine growth restriction (IUGR) leads to impaired placental circulation through an antioangiogenetic effect. This results in the development of placental vascular dysfunction and chronic fetal hypoxia...
April 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28414291/defects-in-dna-replication-hit-nk-cells-and-neutrophils
#17
Klaus Ley
Patients who present with unique immunological phenotypes provide an opportunity to better understand defect-driving mutations. In this issue of the JCI, Cottineau and colleagues characterize 5 individuals who exhibited growth restriction, facial deformities, and a history of bacterial and viral infection. Further characterization revealed that these patients were neutropenic and NK cell deficient. These phenotypes were unexpectedly linked to mutations in the gene encoding a subunit of the Go-Ichi-Ni-San (GINS) complex, which is essential for DNA replication prior to cell division...
April 17, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28413694/first-neonatal-demise-with-travel-associated-zika-virus-infection-in-the-united-states-of-america
#18
Nikolaos Zacharias, Janice Whitty, Sarah Noblin, Sophia Tsakiri, Jose Garcia, Michael Covinsky, Meenakshi Bhattacharjee, David Saulino, Nina Tatevian, Sean Blackwell
Zika virus is increasingly recognized as a fetal pathogen worldwide. We describe the first case of neonatal demise with travel-associated Zika virus infection in the United States of America, including a novel prenatal ultrasound finding. A young Latina presented to our health care system in Southeast Texas for prenatal care at 23 weeks of gestation. Fetal Dandy-Walker malformation, asymmetric cerebral ventriculomegaly, single umbilical artery, hypoechoic fetal knee, dorsal foot edema, and mild polyhydramnios were noted upon initial screening prenatal sonography at 26 weeks...
April 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28412885/antenatal-taurine-supplementation-in-fetal-rats-with-growth-restriction-improves-neural-stem-cell-proliferation-by-inhibiting-the-activities-of-rho-family-factors
#19
Yan Wang, Xiang-Wen Li, Jing Liu, Wei Fu
OBJECTIVE: To investigate whether antenatal taurine supplementation improves neural stem cell proliferation in rats with fetal growth restriction (FGR) through regulating the activity of Rho family factors. METHODS: FGR models were established via food restriction throughout pregnancy. Pregnant rats were randomly divided into the control group, the FGR group (given 40% of the normal daily feeding in the control group), and the Taurine group (FGR model treated with 300 mg/kg·d taurine from gestational day seven)...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28412854/oxidative-stress-in-preeclamptic-mother-newborn-dyads-and-its-correlation-with-early-neonatal-outcome-a-case-control-study
#20
Shruti Bharadwaj, B Vishnu Bhat, Vickneswaran V, B Adhisivam, Zachariah Bobby, Habeebullah S
BACKGROUND: Preeclamptic mothers are likely to have increased oxidative stress during pregnancy which can adversely affect the outcome in their neonates Objectives: To measure the oxidative stress in preeclamptic mother- newborn dyads and correlate it with the immediate neonatal outcome. METHODS: This case control study conducted in a tertiary care teaching hospital, south India included 71 preeclamptic mother- newborn dyads (cases) and 72 normal mother- newborn dyads (controls)...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
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