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https://www.readbyqxmd.com/read/28346921/bacterial-colonization-of-the-newborn-gut-immune-development-and-prevention-of-disease
#1
W Allan Walker
We now know that the fetus does not reside in a sterile intrauterine environment but is exposed to commensal bacteria from the maternal gut which cross the placenta and infiltrate the amniotic fluid. This exposure to colonizing bacteria continues at birth and during the first year of life, and it has a profound influence on lifelong health. Why is this important? Cross talk with colonizing bacteria in the developing neonatal intestine helps in the initial adaptation of the infant to extrauterine life, particularly in acquiring immune homeostasis, and provides protection against disease expression (e...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346920/microbial-composition-of-the-initial-colonization-of-newborns
#2
Samuli Rautava
Early-life interaction with indigenous intestinal microbes is a prerequisite for healthy immune and metabolic maturation. Human infants acquire their gut microbiota predominantly from the mother. A considerable inoculum of microbes is received by the neonate during vaginal delivery. Recent observations suggest that human gut colonization may be initiated prenatally by microbes in amniotic fluid, but the significance of this phenomenon remains unknown. After birth, neonatal gut colonization is guided by human milk factors, which selectively promote the growth of specific microbes, as well as by live microbes present in human milk...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28345186/use-of-the-fetal-myocardial-performance-index-in-assessment-and-management-of-the-small-for-gestational-age-fetus-a-cohort-and-nested-case-control-study
#3
Amanda Henry, Jennifer Alphonse, Dominique Tynan, Alec W Welsh
OBJECTIVES: To assess the clinical utility of the fetal Myocardial Performance Index (MPI) in assessment and management of the fetus referred to Fetal Medicine services for Small for Gestational Age/Intrauterine Growth Restriction (SGA/IUGR). METHODS: Prospective cohort study in metropolitan Australia. Consenting patients referred at 24-38 weeks' gestation for suspected singleton SGA/IUGR (estimated fetal weight [EFW] <10(th) centile for gestation and/or abnormal umbilical artery [UA] Doppler) had MPI performed in addition to routine measures, and were followed through to birth...
March 27, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28344185/arthrogryposis-as-neonatal-presentation-of-loeys-dietz-syndrome-due-to-a-novel-tgfbr2-mutation
#4
Irene Valenzuela, Paula Fernández-Alvarez, Francina Munell, Angel Sanchez-Montanez, Gemma Giralt, Teresa Vendrell, Eduardo Tizzano
Loeys-Dietz syndrome (LDS) is an autosomal dominant connective tissue disorder characterized mainly by cardiovascular, craniofacial and skeletal features. We report on a patient with LDS, whose prenatal examination was compatible with the diagnosis of arthrogryposis multiplex congenita. Neonatal assessment showed craniofacial and cardiovascular findings suggestive of LDS whose diagnosis was confirmed by the detection of a novel mutation (HGVN: NM_003242.5 (TGFBR2): c.1381T > C (p.(Cys461Arg))) in the TGFBR2 gene...
March 23, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28343228/focal-brain-injury-associated-with-a-model-of-severe-hypoxic-ischemic-encephalopathy-in-nonhuman-primates
#5
Ryan M McAdams, Ronald J McPherson, Raj P Kapur, Sandra E Juul
Worldwide, hypoxic-ischemic encephalopathy (HIE) is a major cause of neonatal mortality and morbidity. To better understand the mechanisms contributing to brain injury and improve outcomes in neonates with HIE, better preclinical animal models that mimic the clinical situation following birth asphyxia in term newborns are needed. In an effort to achieve this goal, we modified our nonhuman primate model of HIE induced by in utero umbilical cord occlusion (UCO) to include postnatal hypoxic episodes, in order to simulate apneic events in human neonates with HIE...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343176/proactive-approach-at-the-limits-of-viability-improves-the-short-term-outcome-of-neonates-born-after-23-weeks-gestation
#6
Patrik Šimják, Jan Smíšek, Michal Koucký, Tereza Lamberská, Richard Plavka, Zdeněk Hájek
OBJECTIVE: The aim of this single-center study was to identify factors that affect the short-term outcome of newborns delivered around the limits of viability. METHODS: A group of 137 pregnant women who gave birth between 22+0/7 and 25+6/7 weeks of gestation was retrospectively studied. The center supports a proactive approach to infants around the limits of viability. Perinatal and neonatal characteristics were obtained and statistically evaluated. RESULTS: A total of 166 live-born infants were enrolled during a 6-year period; 162 (97...
March 27, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28342715/prediction-of-neonatal-respiratory-morbidity-by-quantitative-ultrasound-lung-texture-analysis-a-multicenter-study
#7
Montse Palacio, Elisenda Bonet-Carne, Teresa Cobo, Alvaro Perez-Moreno, Joan Sabrià, Jute Richter, Marian Kacerovsky, Bo Jacobsson, Raúl A García-Posada, Fernando Bugatto, Ramon Santisteve, Àngels Vives, Mauro Parra-Cordero, Edgar Hernandez-Andrade, José Luis Bartha, Pilar Carretero-Lucena, Kai Lit Tan, Rogelio Cruz-Martínez, Minke Burke, Suseela Vavilala, Igor Iruretagoyena, Juan Luis Delgado, Mauro Schenone, Josep Vilanova, Francesc Botet, George Sh Yeo, Jon Hyett, Jan Deprest, Roberto Romero, Eduard Gratacos
BACKGROUND: Prediction of neonatal respiratory morbidity may be useful to plan delivery in complicated pregnancies. The limited predictive performance of the current diagnostic tests together with the risks of an invasive procedure, limit the use of fetal lung maturity assessment. OBJECTIVE: To evaluate the performance of quantitative ultrasound texture analysis (quantusFLM®) to predict neonatal respiratory morbidity in preterm and early-term (<39.0 weeks) deliveries ...
March 22, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28342385/follow-up-at-two-years-of-age-and-early-predictors-of-non-compliance-in-a-cohort-of-very-preterm-infants
#8
Claire Mas, Patrick Gérardin, Emmanuel Chirpaz, Magali Carbonnier, Corinne Mussard, Sylvain Samperiz, Duksha Ramful
AIM: To examine the rates of follow-up at two years of age and perinatal factors associated with non-compliance in an observational population-based cohort of very preterm children enrolled in a routine follow-up program. METHOD: Data review of infants born between 2008 and 2012 in the Observatoire de La Grande Prématurité, Reunion Island cohort. All singletons born alive before 33weeks of gestational age and resident on the island at two years of age were included...
March 22, 2017: Early Human Development
https://www.readbyqxmd.com/read/28341585/the-experiences-of-last-year-student-midwives-with-high-fidelity-perinatal-simulation-training-a-qualitative-descriptive-study
#9
Joeri Vermeulen, Katrien Beeckman, Rivka Turcksin, Lies Van Winkel, Léonardo Gucciardo, Monika Laubach, Wim Peersman, Eva Swinnen
BACKGROUND: Simulation training is a powerful and evidence-based teaching method in healthcare. It allows students to develop essential competences that are often difficult to achieve during internships. High-Fidelity Perinatal Simulation exposes them to real-life scenarios in a safe environment. Although student midwives' experiences need to be considered to make the simulation training work, these have been overlooked so far. AIM: To explore the experiences of last-year student midwives with High-Fidelity Perinatal Simulation training...
March 21, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/28341582/sex-differences-in-microglial-phagocytosis-in-the-neonatal-hippocampus
#10
Lars H Nelson, Spencer Warden, Kathryn M Lenz
Microglia regulate brain development through many processes, such as promoting neurogenesis, supporting cell survival, and phagocytizing progenitor, newly-born, and dying cells. Many of these same developmental processes show robust sex differences, yet very few studies have assessed sex differences in microglia function during development. Hormonally-induced sexual differentiation of the brain occurs during the perinatal period, thus we examined sex differences in microglial morphology, phagocytosis, and proliferation in the hippocampus during the early postnatal period...
March 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28341041/invited-review-a-systematic-literature-review-and-meta-analysis-of-mortality-and-culling-in-dairy-cattle
#11
C W R Compton, C Heuer, P T Thomsen, T E Carpenter, C V C Phyn, S McDougall
Dairy industries and individual farmers are concerned about mortality and culling of dairy animals. This is because the timing and fates of animals that exit dairy farms have important animal welfare and economic consequences that reflect the conditions under which they are farmed and the efficiency of their production systems. Reports from a few countries have indicated increased incidence of mortality, and occasionally culling, of dairy animals in recent decades, and these changes have been associated with intensification of production systems...
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28338231/caesarean-risk-in-obese-women-at-term-a%C3%A2-retrospective-cohort-analysis
#12
Rachael Nugent, Caroline de Costa, Venkat Vangaveti
BACKGROUND: Obesity in pregnancy is a growing health problem conferring higher risk to both the woman and her infant. Internationally, peak bodies offer little guidance regarding the method and timing of delivery in these patients. Our hypothesis is that induction of labour (IOL) at term will not increase the caesarean section (CS) rate when compared to expectant management. AIMS: To compare perinatal outcomes between IOL and expectant management in obese women at term...
March 24, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28338027/molar-incisor-hypomineralisation
#13
Greig D Taylor
Data sourcesThe Medline and Embase databases and hand searches in the journals International Journal of Paediatric Dentistry and European Archives of Paediatric Dentistry.Study selectionEnglish language cohort and case-control studies.Data extraction and synthesisStudy selection was carried out independently by two reviewers with data abstraction being conducted by a single reviewer and checked by a second reviewer. Risk of bias was assessed using a modified version of the Newcastle-Ottawa Scale (NOS). Adjusted (aOR) and unadjusted odds ratios (uOR), P-values and 95% confidence intervals (CI) were obtained from the studies...
March 2017: Evidence-based Dentistry
https://www.readbyqxmd.com/read/28337896/maternal-obesity-and-perinatal-oxidative-stress-the-strength-of-the-association
#14
S Negro, T Boutsikou, D D Briana, M L Tataranno, M Longini, F Proietti, F Bazzini, C Dani, A Malamitsi-Puchner, G Buonocore, S Perrone
Maternal obesity is a chronic inflammatory state, which has been shown to induce increased levels of free fatty acids, reactive oxygen species and inflammatory cells. Recent evidence reveals increased levels of lipid peroxidation products in the plasma of obese women during pregnancy. The aim of this study was to test the hypothesis that maternal overweight or obesity is associated with increased oxidative stress (OS) in offspring. Two hundred and forty-five pregnant women and their newborns were prospectively enrolled...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337354/facial-asymmetry-in-a-crying-newborn-a-comparison-of-two-cases-and-review-of-literature
#15
Shreyas Arya, Sunil K Jain, Carol J Richardson
Facial asymmetry in a crying newborn can be due to a variety of different causes. Neonatal asymmetric crying facies (NACF) is a specific phenotype, which is often underrecognized. It is defined as asymmetry of the mouth and lips with grimacing or smiling, but a symmetric appearance at rest. NACF needs to be differentiated from complete facial palsy in a newborn, which can occur due to traumatic or developmental etiologies. Developmental causes can be present in isolation or may be a part of a recognized syndrome...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28333939/maintenance-nifedipine-therapy-for-preterm-symptomatic-placenta-previa-a-randomized-multicenter-double-blind-placebo-controlled-trial
#16
Eric Verspyck, Claire de Vienne, Charles Muszynski, Michael Bubenheim, Isabella Chanavaz-Lacheray, Michel Dreyfus, Philippe Deruelle, Jacques Benichou
OBJECTIVE: To assess the impact of maintenance nifedipine therapy on pregnancy duration in women with preterm placenta previa bleeding. METHODS: PPADAL was a randomized, double-blind, placebo-controlled trial conducted between 05/2008 and 05/2012 in five French hospitals. The trial included 109 women, aged ≥ 18 years, with at least one episode of placenta previa bleeding, intact membranes and no other pregnancy complication, at gestational age 24 to 34 weeks and after 48 hours of complete acute tocolysis...
2017: PloS One
https://www.readbyqxmd.com/read/28333694/high-flow-nasal-cannula-therapy-beyond-the-perinatal-period
#17
Michael Lee, Joshua Nagler
PURPOSE OF REVIEW: High-flow nasal cannula (HFNC) is emerging as a means of oxygen delivery and respiratory support for a range of conditions outside the perinatal period. We aim to review the mechanisms of action and advantages of HFNC and to summarize current findings regarding clinical benefit in specific pediatric disease processes and in patients with significant respiratory distress. RECENT FINDINGS: Currently published studies outside the neonatal population demonstrate both safety and efficacy of this mode of respiratory support...
March 22, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28330778/intratracheal-lps-administration-attenuates-the-acute-hypoxic-ventilatory-response-role-of-brainstem-il-1%C3%AE-receptors
#18
A P Ribeiro, C A Mayer, C G Wilson, R J Martin, P M MacFarlane
Perinatal inflammation and infection are commonly associated with various respiratory morbidities in preterm infants including apnea of prematurity. In this study, we investigated whether pulmonary inflammation via intra-tracheal micro-injection of lipopolysaccharide (LPS) into neonatal rats modifies respiratory neural control via an IL-1β receptor-dependent mechanism. Prior to an intra-tracheal micro-injection of LPS (1mg/kg), 10day old (Postnatal age, P10) rats received an intraperitoneal (i.p.) or intracisternal (i...
March 19, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28326198/could-perinatal-asphyxia-induce-a-synaptopathy-new-highlights-from-an-experimental-model
#19
REVIEW
María Inés Herrera, Matilde Otero-Losada, Lucas Daniel Udovin, Carlos Kusnier, Rodolfo Kölliker-Frers, Wanderley de Souza, Francisco Capani
Birth asphyxia also termed perinatal asphyxia is an obstetric complication that strongly affects brain structure and function. Central nervous system is highly susceptible to oxidative damage caused by perinatal asphyxia while activation and maturity of the proper pathways are relevant to avoiding abnormal neural development. Perinatal asphyxia is associated with high morbimortality in term and preterm neonates. Although several studies have demonstrated a variety of biochemical and molecular pathways involved in perinatal asphyxia physiopathology, little is known about the synaptic alterations induced by perinatal asphyxia...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28325959/perinatal-mortality-associated-with-positive-postmortem-cultures-for-common-oral-flora
#20
Mai He, Alison R Migliori, Patricia Lauro, C James Sung, Halit Pinar
Introduction. To investigate whether maternal oral flora might be involved in intrauterine infection and subsequent stillbirth or neonatal death and could therefore be detected in fetal and neonatal postmortem bacterial cultures. Methods. This retrospective study of postmortem examinations from 1/1/2000 to 12/31/2010 was searched for bacterial cultures positive for common oral flora from heart blood or lung tissue. Maternal age, gestational age, age at neonatal death, and placental and fetal/neonatal histopathological findings were collected...
2017: Infectious Diseases in Obstetrics and Gynecology
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