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https://www.readbyqxmd.com/read/28087725/neurodevelopmental-outcomes-of-extremely-low-birthweight-infants-randomised-to-different-pco2-targets-the-phelbi-follow-up-study
#1
Ulrich H Thome, Orsolya Genzel-Boroviczeny, Bettina Bohnhorst, Manuel Schmid, Hans Fuchs, Oliver Rohde, Stefan Avenarius, Hans-Georg Topf, Andrea Zimmermann, Dirk Faas, Katharina Timme, Barbara Kleinlein, Horst Buxmann, Wilfried Schenk, Hugo Segerer, Norbert Teig, Annett Bläser, Roland Hentschel, Matthias Heckmann, Rolf Schlösser, Jochen Peters, Rainer Rossi, Wolfgang Rascher, Ralf Böttger, Jürgen Seidenberg, Gesine Hansen, Maria Zernickel, Harald Bode, Jens Dreyhaupt, Rainer Muche, Helmut D Hummler
BACKGROUND: Tolerating higher partial pressures of carbon dioxide (PCO2) in mechanically ventilated extremely low birthweight infants to reduce ventilator-induced lung injury may have long-term neurodevelopmental side effects. This study analyses the results of neurodevelopmental follow-up of infants enrolled in a randomised multicentre trial. METHODS: Infants (n=359) between 400 and 1000 g birth weight and 23 0/7-28 6/7 weeks gestational age who required endotracheal intubation and mechanical ventilation within 24 hours of birth were randomly assigned to high PCO2 or to a control group with mildly elevated PCO2 targets...
January 13, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28062481/sex-specific-effects-of-sex-steroids-on-alveolar-epithelial-na-transport
#2
Melanie Haase, Mandy Laube, Ulrich H Thome
Alveolar fluid clearance mediates perinatal lung transition to air breathing in newborn infants, which is accomplished by epithelial Na+ channels (ENaC) and the Na,K-ATPase. Male sex represents a major risk factor for developing respiratory distress, especially in preterm infants. We previously showed that male sex is associated with reduced epithelial Na+ transport, possibly contributing to the sexual dimorphism in newborn respiratory distress. This study aimed to determine sex-specific effects of sex steroids on epithelial Na+ transport...
January 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28056907/lung-function-in-very-low-birth-weight-infants-after-pharmacological-and-surgical-treatment-of-patent-ductus-arteriosus-a-retrospective-analysis
#3
Payman Barikbin, Hannes Sallmon, Silke Wilitzki, Joachim Photiadis, Christoph Bührer, Petra Koehne, Gerd Schmalisch
BACKGROUND: The indications and strategies for treatment of patent ductus arteriosus (PDA) are controversial, and the safety and long-term benefits of surgical PDA closure remain uncertain. The aim of this study was to compare the lung function of very low birth weight (VLBW) infants after successful PDA treatment with a cyclooxygenase inhibitor or secondary surgical ligation. METHODS: A total of 114 VLBW infants (birth weight < 1500 g), including 94 infants (82%) with a birth weight < 1000 g, who received treatment for hemodynamically significant PDA (hsPDA), were examined at a median postmenstrual age of 48 weeks...
January 6, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28053968/electromagnetic-inductance-plethysmography-is-well-suited-to-measure-tidal-breathing-in-infants
#4
Mariann H L Bentsen, Morten Eriksen, Merete S Olsen, Trond Markestad, Thomas Halvorsen
Reliable, accurate and noninvasive methods for measuring lung function in infants are desirable. Electromagnetic inductance plethysmography has been used to perform infant spirometry and VoluSense Pediatrics (VSP) (VoluSense, Bergen, Norway) represents an updated version of this technique. We aimed to examine its accuracy compared to a validated system measuring airflow via a facemask using an ultrasonic flowmeter. We tested 30 infants with postmenstrual ages between 36 to 43 weeks and weights from 2.3 to 4...
October 2016: ERJ Open Research
https://www.readbyqxmd.com/read/28051016/lung-function-in-wheezing-infants-after-acute-lower-respiratory-tract-infection-and-its-association-with-respiratory-outcome
#5
Yuan-Yuan Qi, Gao-Li Jiang, Li-Bo Wang, Cheng-Zhou Wan, Xiao-Bo Zhang, Li-Ling Qian
BACKGROUND: Wheezing is common in early childhood and remains an important health concern. The aim of this study was to assess the lung function of wheezing infants and to investigate the relationship between lung function and respiratory outcome. METHODS: Infants <2 years of age with acute lower respiratory tract infection (ALRTI) who had undergone lung function tests were included in the study. They were assigned to wheeze or no wheeze group based on physical examination...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28042822/enduring-sexually-dimorphic-impact-of-in-utero-exposure-to-elevated-levels-of-glucocorticoids-on-midbrain-dopaminergic-populations
#6
REVIEW
Glenda E Gillies, Kanwar Virdee, Ilse Pienaar, Felwah Al-Zaid, Jeffrey W Dalley
Glucocorticoid hormones (GCs) released from the fetal/maternal glands during late gestation are required for normal development of mammalian organs and tissues. Accordingly, synthetic glucocorticoids have proven to be invaluable in perinatal medicine where they are widely used to accelerate fetal lung maturation when there is risk of pre-term birth and to promote infant survival. However, clinical and pre-clinical studies have demonstrated that inappropriate exposure of the developing brain to elevated levels of GCs, either as a result of clinical over-use or after stress-induced activation of the fetal/maternal adrenal cortex, is linked with significant effects on brain structure, neurological function and behaviour in later life...
December 30, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27965773/treatment-of-asthma-in-young-children-evidence-based-recommendations
#7
REVIEW
Jose A Castro-Rodriguez, Adnan Custovic, Francine M Ducharme
: In the present review, we focus on evidence-based data for the use of inhaled corticosteroids (ICS), leukotriene receptor antagonist (LTRA), long-acting beta2-agonits (LABA) and oral corticosteroids (OCS), with a special emphasis on well-performed randomized clinical trials (RCTs) and meta-analyses of such trials for the chronic management of asthma/wheeze in infants and preschoolers. RESULTS: Seven meta-analyses and 14 RCTs were reviewed. Daily ICS should be the preferred drug for infants/preschoolers with recurrent wheezing, especially in asthmatics...
2016: Asthma research and practice
https://www.readbyqxmd.com/read/27930727/airway-microbiota-in-bronchoalveolar-lavage-fluid-from-clinically-well-infants-with-cystic-fibrosis
#8
Theresa A Laguna, Brandie D Wagner, Cynthia B Williams, Mark J Stevens, Charles E Robertson, Cole W Welchlin, Catherine E Moen, Edith T Zemanick, Jonathan K Harris
BACKGROUND: Upper airway cultures guide the identification and treatment of lung pathogens in infants with cystic fibrosis (CF); however, this may not fully reflect the spectrum of bacteria present in the lower airway. Our objectives were to characterize the airway microbiota using bronchoalveolar lavage fluid (BALF) from asymptomatic CF infants during the first year of life and to investigate the relationship between BALF microbiota, standard culture and clinical characteristics. METHODS: BALF, nasopharyngeal (NP) culture and infant pulmonary function testing data were collected at 6 months and one year of age during periods of clinical stability from infants diagnosed with CF by newborn screening...
2016: PloS One
https://www.readbyqxmd.com/read/27901512/mitochondrial-dysfunction-in-alveolar-and-white-matter-developmental-failure-in-premature-infants
#9
Vadim S Ten
At birth, some organs in premature infants are not developed enough to meet challenges of the extra-uterine life. Although growth and maturation continues after premature birth, postnatal organ development may become sluggish or even arrested, leading to organ dysfunction. There is no clear mechanistic concept of this postnatal organ developmental failure in premature neonates. This review introduces a concept-forming hypothesis: Mitochondrial bioenergetic dysfunction is a fundamental mechanism of organs maturation failure in premature infants...
November 30, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27898687/effects-of-chronologic-age-and-young-child-exposure-on-respiratory-syncytial-virus-disease-among-us-preterm-infants-born-at-32-to-35-weeks-gestation
#10
Eric A F Simões, Evan J Anderson, Xionghua Wu, Christopher S Ambrose
OBJECTIVE: To estimate the incidence of respiratory syncytial virus (RSV) disease as a function of chronologic age and exposure to young children in US preterm infants. METHODS: In the RSV Respiratory Events among Preterm Infants Outcomes and Risk Tracking (REPORT) study, preterm infants born at 32-35 weeks gestational age (wGA) were enrolled from 188 US clinics and followed September-May of 2009-2010 or 2010-2011. Infants with medically-attended acute respiratory illness had nasal/pharyngeal swabs collected for viral testing...
2016: PloS One
https://www.readbyqxmd.com/read/27895172/pulmonary-dendritic-cell-subsets-shape-the-respiratory-syncytial-virus-specific-cd8-t-cell-immunodominance-hierarchy-in-neonates
#11
Allison M W Malloy, Tracy J Ruckwardt, Kaitlyn M Morabito, Annie W Lau-Kilby, Barney S Graham
Young infants are generally more susceptible to viral infections and experience more severe disease than do adults. CD8(+) T cells are important for viral clearance, and although often ineffective in neonates they can be protective when adequately stimulated. Using a murine CB6F1/J hybrid model of respiratory syncytial virus (RSV) infection, we previously demonstrated that the CD8(+) T cell immunodominance hierarchy to two RSV-derived epitopes, K(d)M282-90 and D(b)M187-195, was determined by the age at infection...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27893721/biomarkers-associated-with-bronchopulmonary-dysplasia-mortality-in-premature-infants
#12
Jessica Balena-Borneman, Namasivayam Ambalavanan, Hemant K Tiwari, Russell L Griffin, Brian Halloran, David Askenazi
BACKGROUND: Bronchopulmonary dysplasia (BPD) portends lifelong organ impairment and death. Our ability to predict BPD in first days of life is limited, but could be enhance using novel biomarkers. METHODS: Using an available clinical and urine biomarker database obtained from a prospective 113 infant cohort (birth weight ≤1200 g and/or gestational age ≤31 weeks), we evaluated the independent association of 14 urine biomarkers with BPD/mortality. RESULTS: Two of the 14 urine biomarkers were independently associated with BPD/mortality after controlling for gestational age (GA), small for gestational age (SGA), and intubation status...
November 28, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27873442/forced-deflation-pulmonary-function-test-a-novel-method-to-evaluate-lung-function-in-infants-and-young-children
#13
Rakesh K Goyal, Azada Ibrahimova, Maria L Escolar, Paul Szabolcs, Mark Vander Lugt, Randy M Windreich, Daniel J Weiner
We describe the safety and feasibility of a forced deflation pulmonary function test (dPFT) in infants and young children. Fifty-two dPFT studies were performed in 26 patients (median age, 1.4 years). Forced vital capacity (FVC) and forced expiratory flow (FEF75 ) were normal in all except one case, but respiratory system compliance (Crs) was reduced in 24% patients. There were no significant differences in pre-blood and marrow transplantation FVC, FEF75 , and Crs between those patients who did and those who did not have posttransplant pulmonary complications...
November 22, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27861919/consequences-of-maternal-omega-3-polyunsaturated-fatty-acid-supplementation-on-respiratory-function-in-rat-pups
#14
Luana Tenorio-Lopes, Cécile Baldy, Alexandra Jochmans-Lemoine, Océane Mercier, Olivier Pothier-Piccinin, Tommy Seaborn, Vincent Joseph, Isabelle Marc, Richard Kinkead
KEY POINTS: Incomplete development of the neural circuits that control breathing contributes to respiratory disorders in pre-term infants. Manifestations include respiratory instability, prolonged apnoeas and poor ventilatory responses to stimuli. Based on evidence suggesting that omega-3 polyunsaturated fatty acids (n-3 PUFA) improves brain development, we determined whether n-3 PUFA supplementation (via the maternal diet) improves respiratory function in 10-11-day-old rat pups. n-3 PUFA treatment prolonged apnoea duration but augmented the relative pulmonary surface area and the ventilatory response to hypoxia...
November 11, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27856821/determinants-of-early-life-lung-function-in-african-infants
#15
Diane Gray, Lauren Willemse, Ane Visagie, Dorottya Czövek, Polite Nduru, Aneesa Vanker, Dan J Stein, Nastassja Koen, Peter D Sly, Zoltán Hantos, Graham L Hall, Heather J Zar
BACKGROUND: Low lung function in early life is associated with later respiratory illness. There is limited data on lung function in African infants despite a high prevalence of respiratory disease. AIM: To assess the determinants of early lung function in African infants. METHOD: Infants enrolled in a South African birth cohort, the Drakenstein child health study, had lung function measured at 6-10 weeks of age. Measurements, made with the infant breathing via a facemask during natural sleep, included tidal breathing, sulfur hexafluoride multiple breath washout and the forced oscillation technique...
November 17, 2016: Thorax
https://www.readbyqxmd.com/read/27854286/-english-disease-historical-notes-on-rickets-the-bone-lung-link-and-child-neglect-issues
#16
REVIEW
Mingyong Zhang, Fan Shen, Anna Petryk, Jingfeng Tang, Xingzhen Chen, Consolato Sergi
Nutritional or classical rickets (here labeled as "rickets") is a worldwide disease involving mostly infants and young children having inadequate sunlight exposure, often associated with a low dietary intake of Vitamin D. Rickets targets all layers of society independently of economic status with historical information spanning more than two millennia. Vitamin D is critical for the absorption of calcium and prevention of rickets in children as well as osteomalacia in adults. The initial and misleading paradigm of the 19th and 20th centuries that rickets may have been the consequence of infection has been, indeed, reversed following the identification of the Vitamin D molecule's important role in the function of the immune system...
November 15, 2016: Nutrients
https://www.readbyqxmd.com/read/27834669/a-translational-cellular-model-to-study-the-impact-of-high-frequency-oscillatory-ventilation-hfov-on-human-epithelial-cell-function
#17
Anja Karolin Mowes, Beatriz E de Jongh, Timothy Cox, Yan Zhu, Thomas H Shaffer
High frequency oscillatory ventilation (HFOV) has been proposed as gentle ventilation strategy to prevent lung injury in the preterm infant. High frequency ventilation leads to dimensional and mechanical airway deformation in animal airway models, which is consistent with translational studies demonstrating the impact of oxygen and biophysical stresses on normal airway cellular function. There is an overall paucity of clinical and cellular data on the impact of HFOV on the conducting airway. We developed an innovative method to test the impact of the clinical HFO Ventilator (Sensormedic 3100A) on human epithelial cell function...
November 10, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27832232/growth-lung-function-and-physical-activity-in-schoolchildren-who-were-very-low-birth-weight-preterm-infants
#18
Aline Dill Winck, João Paulo Heinzmann-Filho, Deise Schumann, Helen Zatti, Rita Mattiello, Marcus Herbert Jones, Renato Tetelbom Stein
Objective: To compare somatic growth, lung function, and level of physical activity in schoolchildren who had been very-low-birth-weight preterm infants (VLBWPIs) or normal-birth-weight full-term infants. Methods: We recruited two groups of schoolchildren between 8 and 11 years of age residing in the study catchment area: those who had been VLBWPIs (birth weight < 1,500 g); and those who had been normal-birth-weight full-term infants (controls, birth weight ≥ 2,500 g)...
July 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27796747/neonatal-dexamethasone-treatment-exacerbates-hypoxia-ischemia-induced-white-matter-injury
#19
Chia -Yu Yeh, Che-Ming Yeh, Ting-Hsuan Yu, Kan-Hsun Chang, Chiung-Chun Huang, Kuei-Sen Hsu
Dexamethasone, a synthetic glucocorticoid, has been widely used to prevent or ameliorate morbidity of chronic lung disease in preterm infants with respiratory distress syndrome. Despite its beneficial effect on neonatal lung function, growing concern has arisen about adverse effects of this clinical practice on fetal brain development. We demonstrated previously that neonatal dexamethasone (DEX) treatment may render the newborn brain to be more vulnerable to hypoxia/ischemia (HI)-induced gray matter injury...
October 28, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27784479/-pulmonary-surfactant-protein-adenosine-triphosphate-binding-cassette-a3-gene-composite-mutations-in-infant-congenital-interstitial-lung-disease-report-of-a-case-and-review-of-literature
#20
N Xie, D H Chen, Y N Lin, S Z Wu, Y Y Gu, Q S Zeng, Y Y Zhai, L Y Yang, J X Xu
: Objective: To report a case of the pulmonary surfactant protein(SP) adenosine triphosphate-binding-cassette-A3 (ABCA3) gene mutations in infant congenital interstitial lung disease(ILD), and review the related literature, to investigate the relationships of ABCA3 gene mutation associated with ILD in infants. Method: A 6-months-old boy was hospitalized in the department of Pediatrics of the First Affiliated Hospital of Guangzhou Medical University. The clinical, radiological, histological information from transbronchial lung biopsy (TBLB) and genetic testing in this case was analyzed; 12 reports retrieved on literature search at Pubmed, OVID databases from 2004 to 2015 by using the ABCA3 as keyword were reviewed and analyzed...
October 2, 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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