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https://www.readbyqxmd.com/read/29224252/are-inhaled-steroids-safe-and-effective-for-prevention-or-treatment-of-bronchopulmonary-dysplasia
#1
Eric S Shinwell
Bronchopulmonary Dysplasia (BPD) represents a major threat to the short and long-term health and development of very preterm infants. Unfortunately, despite much study and progress in neonatology in recent years and some modest improvements in survival, both the incidence and severity of BPD remain frustratingly stable (1). This article is protected by copyright. All rights reserved.
December 9, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29223466/long-term-pulmonary-and-cardiovascular-morbidities-of-neonatal-hyperoxia-exposure-in-mice
#2
Renuka T Menon, Amrit Kumar Shrestha, Corey L Reynolds, Roberto Barrios, Binoy Shivanna
Pulmonary hypertension (PH) frequently occurs in infants with bronchopulmonary dysplasia (BPD), causing increased mortality and right ventricular (RV) dysfunction that persists into adulthood. A first step in developing better therapeutic options is identifying and characterizing an appropriate animal model. Previously, we characterized the short-term morbidities of a model in which C57BL/6J wild-type (WT) mice were exposed to 70% O2 (hyperoxia) during the neonatal period. Here, we aimed to determine the long-term morbidities using lung morphometry, echocardiography (Echo), and cardiac magnetic resonance imaging (cMRI)...
December 7, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29221188/overexpression-of-agt-promotes-bronchopulmonary-dysplasis-via-the-jak-stat-signal-pathway
#3
Lili Shen, Tiancheng Zhang, Hongyan Lu
Angiotensinogen (AGT) is involved in the production of angiotensin II which is the main mediator of action of the rennin-angiotensin system (RAS), whereas the RAS mediates the regulation of sodium homeostasis, blood pressure, and inflammation. The present study aimed to investigate the roles of the AGT in the progression of broncopulmonary dysplasia in premature newborns. By bioinformatics analysis, AGT was found to be the major node in molecular interaction networks of BPD mouse model. Quantitative PCR and western blot analyses were applied to examine AGT expression in A549 cells which were treated with the hyperoxic condition...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29209598/inflammatory-mediators-in-tracheal-aspirates-of-preterm-infants-participating-in-a-randomized-trial-of-permissive-hypercapnia
#4
Sarah Gentner, Mandy Laube, Ulrike Uhlig, Yang Yang, Hans W Fuchs, Jens Dreyhaupt, Helmut D Hummler, Stefan Uhlig, Ulrich H Thome
Background: Ventilator-induced lung injury is considered to be a main factor in the pathogenesis of bronchopulmonary dysplasia (BPD). Optimizing ventilator strategies may reduce respiratory morbidities in preterm infants. Permissive hypercapnia has been suggested to attenuate lung injury. We aimed to determine if a higher PCO2 target range results in less lung injury compared to the control target range and possibly reduces pro-inflammatory cytokines and acid sphingomyelinase (ASM) in tracheal aspirates (TA), which has not been addressed before...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29206808/extrinsic-calcitonin-gene-related-peptide-inhibits-hyperoxia-induced-alveolar-epithelial-type-ii-cells-apoptosis-oxidative-stress-and-reactive-oxygen-species-ros-production-by-enhancing-notch-1-and-homocysteine-induced-endoplasmic-reticulum-protein-herp-expression
#5
Yu-Xin Bai, Fang Fang, Jia-Ling Jiang, Feng Xu
BACKGROUND Lung alveolar epithelial type II cells (AEC II) are the most important stem cells in lung tissues, which are critical for wound repair of bronchopulmonary dysplasia (BPD). This study investigated the effects of calcitonin gene-related peptide (CGRP) on AEC II cells exposed to hyperoxia. MATERIAL AND METHODS Neonatal rat AEC II cells were isolated and identified by detecting surfactant protein C (SP-C). Three small interfering RNAs targeting Notch 1 were synthesized and transfected into AEC II. A hyperoxia-exposed AEC II cell injury model was established and was divided into 8 groups...
December 5, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29204094/the-significance-of-il-1%C3%AE-3953c-t-il-6-174g-c-and-596g-a-tnf-%C3%AE-308g-a-gene-polymorphisms-and-86-bp-variable-number-tandem-repeat-polymorphism-of-il-1rn-in-bronchopulmonary-dysplasia-in-infants-born-before-32-weeks-of-gestation
#6
Dawid Szpecht, Janusz Gadzinowski, Irmina Nowak, Dorothy Cygan, Agnieszka Seremak-Mrozikiewicz, Grażyna Kurzawińska, Dariusz Madajczak, Krzysztof Drews, Marta Szymankiewicz
Introduction: Bronchopulmonary dysplasia (BPD) is a chronic lung disease that affects primarily preterm infants. Genetic factors are also taken into consideration in the pathogenesis of BPD. Genetic predispositions to higher production of inflammation mediators seem to be crucial. Material and methods: The aim of this study was to evaluate the possible relationship between polymorphisms: interleukin-1β +3953 C>T, interleukin-6 -174 G>C and -596 G>A, tumour necrosis factor -308 G>A and interleukin-1RN VNTR 86bp and the occurrence of BPD in a population of 100 preterm infants born from singleton pregnancy, before 32+0 weeks of gestation, exposed to antenatal steroids therapy, and without congenital abnormalities...
2017: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/29198702/hydrogen-protects-against-hyperoxia-induced-apoptosis-in-type-ii-alveolar-epithelial-cells-via-activation-of-pi3k-akt-foxo3a-signaling-pathway
#7
Dan Wu, Mulin Liang, Hongxing Dang, Fang Fang Feng Xu, Chengjun Liu
Oxidative stress is regarded as a key regulator in the pathogenesis of prolonged hyperoxia-induced lung injury, which causes injury to alveolar epithelial cells and eventually leads to development of bronchopulmonary dysplasia (BPD). Many studies have shown that hydrogen has a protective effect in a variety of cells. However, the mechanisms by which hydrogen rescues cells from damage due to oxidative stress in BPD remains to be fully elucidated. This study sought to evaluate the effects of hydrogen on hyperoxia-induced lung injury and to investigate the underlying mechanism...
November 30, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29198532/impact-of-prolonged-mechanical-ventilation-in-very-low-birth-weight-infants-results-from-a-national-cohort-study
#8
Young-Bin Choi, Juyoung Lee, Jisun Park, Yong Hoon Jun
OBJECTIVE: To evaluate the in-hospital consequences of prolonged respiratory support with invasive mechanical ventilation in very low birth weight infants. STUDY DESIGN: A cohort study was performed using prospectively collected data from 69 neonatal intensive care units participating in the Korean national registry. In total, 3508 very low birth weight infants born between January 1, 2013 and December 31, 2014 were reviewed. RESULTS: The adjusted hazard ratio for death increased significantly for infants who received mechanical ventilation for more than 2 weeks compared with those were mechanically ventilated for 7 days or less...
November 30, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29193495/premature-birth-affects-the-degree-of-airway-dysanapsis-and-mechanical-ventilatory-constraints
#9
Joseph W Duke, Igor M Gladstone, A William Sheel, Andrew T Lovering
Adult survivors of very preterm birth (≤32 weeks gestational age) without (PRE) and with bronchopulmonary dysplasia (BPD) have obstructive lung disease as evidenced by reduced expiratory airflow at rest and have significant mechanical ventilatory constraints during exercise. Airflow obstruction, under any condition, could be due to several factors including small airways. PRE and/or BPD could have smaller airways than their counterparts born at full-term (CON) due to a greater degree of dysanaptic airway development during the pre- and/or post-natal period...
November 29, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29193276/review-shows-that-using-surfactant-a-number-of-times-or-as-a-vehicle-for-budesonide-may-reduce-the-risk-of-bronchopulmonary-dysplasia
#10
REVIEW
J M Hascoët, J C Picaud, I Ligi, T Blanc, P Daoud, V Zupan, F Moreau, I Guilhoto, M Rouabah, C Alexandre, E Saliba, L Storme, J Patkai, M Pomedio, I Hamon
AIM: Bronchopulmonary dysplasia (BPD) remains the most common respiratory morbidity in immature infants. This review describes the diagnosis of BPD has evolved and summarises the therapeutic approaches that have made it possible to limit the incidence of BPD. METHOD: We reviewed the literature from the first definition of BPD by Northway in 1967 to the surfactant treatment policies that are currently in use, drawing on more than 50 papers up to 2017. RESULTS: Our review showed that improvements in neonatal survival have been associated with an increased risk of severe BPD, significant levels of long-term morbidity and the increased use of healthcare resources...
November 28, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29192005/successful-reversal-of-furosemide-induced-secondary-hyperparathyroidism-with-cinacalcet
#11
Tarak Srivastava, Shahryar Jafri, William E Truog, Judith Sebestyen VanSickle, Winston M Manimtim, Uri S Alon
Secondary hyperparathyroidism (SHPT) is a rare complication of furosemide therapy that can occur in patients treated with the loop diuretic for a long period of time. We report a 6-month-old 28-weeks premature infant treated chronically with furosemide for his bronchopulmonary dysplasia, who developed hypocalcemia and severe SHPT, adversely affecting his bones. Discontinuation of the loop diuretic and the addition of supplemental calcium and calcitriol only partially reversed the SHPT, bringing serum parathyroid hormone level down from 553 to 238 pg/mL...
December 2017: Pediatrics
https://www.readbyqxmd.com/read/29181530/neurodevelopmental-and-behavioral-outcomes-in-extremely-premature-neonates-with-ventriculomegaly-in-the-absence-of-periventricular-intraventricular-hemorrhage
#12
Athina Pappas, Ira Adams-Chapman, Seetha Shankaran, Scott A McDonald, Barbara J Stoll, Abbot R Laptook, Waldemar A Carlo, Krisa P Van Meurs, Susan R Hintz, Martha D Carlson, Jane E Brumbaugh, Michele C Walsh, Myra H Wyckoff, Abhik Das, Rosemary D Higgins
Importance: Studies of cranial ultrasonography and early childhood outcomes among cohorts of extremely preterm neonates have linked periventricular-intraventricular hemorrhage and cystic periventricular leukomalacia with adverse neurodevelopmental outcomes. However, the association between nonhemorrhagic ventriculomegaly and neurodevelopmental and behavioral outcomes is not fully understood. Objective: To characterize the outcomes of extremely preterm neonates younger than 27 weeks' gestational age who experienced nonhemorrhagic ventriculomegaly that was detected prior to 36 weeks' postmenstrual age...
November 27, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/29181317/a-predictive-score-for-retinopathy-of-prematurity-by-using-clinical-risk-factors-and-serum-insulin-like-growth-factor-1-levels
#13
Yeşim Coşkun, Ceyhun Dalkan, Özge Yabaş, Özlem Ünay Demirel, Elif Samiye Bayar, Sibel Sakarya, Tuba Müftüoğlu, Dilaver Erşanlı, Nerin Bahçeciler, İpek Akman
AIM: To detect the impact of insulin-like growth factor-1 (IGF-1) and other risk factors for the early prediction of retinopathy of prematurity (ROP) and to establish a scoring system for ROP prediction by using clinical criteria and serum IGF-1 levels. METHODS: The study was conducted with 127 preterm infants. IGF-1 levels in the 1st day of life, 1st, 2nd, 3rd and 4th week of life was analyzed. The score was established after logistic regression analysis, considering the impact of each variable on the occurrences of any stage ROP...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29180065/%C3%AE-naphthoflavone-treatment-attenuates-neonatal-hyperoxic-lung-injury-in-wild-type-and-cyp1a2-knockout-mice
#14
Krithika Lingappan, Paramahamsa Maturu, Yanhong Wei Liang, Weiwu Jiang, Lihua Wang, Bhagavatula Moorthy, Xanthi I Couroucli
Exposure to supraphysiological concentrations of oxygen (hyperoxia) leads to bronchopulmonary dysplasia (BPD), one of the most common pulmonary morbidities in preterm neonates, which is more prevalent in males than females. Beta-naphthoflavone (BNF) is protective against hyperoxic lung injury in adult and neonatal wild type (WT) mice and in and mice lacking Cyp1a1gene. In this investigation, we tested the hypothesis that BNF treatment will attenuate neonatal hyperoxic lung injury in WT and Cyp1a2-/- mice, and elucidated the effect of sex-specific differences...
November 24, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29175965/own-mother-s-milk-significantly-decreases-the-risk-of-bronchopulmonary-dysplasia
#15
Amy Hair
No abstract text is available yet for this article.
November 25, 2017: Evidence-based Nursing
https://www.readbyqxmd.com/read/29173790/inhaled-drugs-and-systemic-corticosteroids-for-bronchopulmonary-dysplasia
#16
REVIEW
Dirk Bassler, John van den Anker
All definitions of bronchopulmonary dysplasia (BPD) have limitations and a new definition for the purpose of clinical research, benchmarking, and prognostic prediction is needed. Different inhaled and systemic drugs are currently used to prevent or treat BPD. Despite some positive effects on BPD, more information about the effects of inhaled corticosteroids is required to assess overall efficacy and associated risks. One needs to balance the risks of neurodevelopmental impairment owing to systemic corticosteroids against those of BPD itself...
December 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/29173320/pulmonary-artery-pressures-in-school-age-children-born-prematurely
#17
Sanja Zivanovic, Kuberan Pushparajah, Sandy Calvert, Neil Marlow, Reza Razavi, Janet L Peacock, Anne Greenough
OBJECTIVES: To test the hypothesis that pulmonary artery pressures were higher in school aged children born extremely premature than those born at term. We also wanted to assess whether pulmonary artery pressures differed between children born prematurely with or without bronchopulmonary dysplasia (BPD) or between those randomized in the neonatal period to different ventilation modes. STUDY DESIGN: Transthoracic echocardiography was performed on 193 children born extremely premature (106 had BPD) and 110 children born at term when they were 11-14 years of age...
December 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29173319/impact-of-the-neonatal-resuscitation-program-recommended-low-oxygen-strategy-on-outcomes-of-infants-born-preterm
#18
Vishal S Kapadia, Charitharth V Lal, Venkat Kakkilaya, Roy Heyne, Rashmin C Savani, Myra H Wyckoff
OBJECTIVE: To evaluate the impact of the Neonatal Resuscitation Program (NRP)-recommended low oxygen strategy (LOX) on neonatal morbidities, mortality, and neurodevelopmental outcomes in neonates born preterm. STUDY DESIGN: In March 2011, Parkland Hospital changed from a high oxygen strategy (HOX) of resuscitation with initial 100% oxygen and targeting 85%-94% oxygen saturation for delivery room resuscitation to a LOX with initial 21% oxygen and titrating oxygen to meet NRP-recommended transitional target saturations...
December 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29172232/review-demonstrates-that-less-invasive-surfactant-administration-in-preterm-neonates-leads-to-fewer-complications
#19
REVIEW
Ludwig Gortner, Simone S Schüller, Egbert Herting
Surfactant treatment of neonatal respiratory distress syndrome (RDS) was introduced into Europe during the 1990s. Meta-analyses have indicated that using less invasive surfactant administration (LISA) techniques on preterm neonates receiving continuous positive airway pressure (CPAP) results in improved survival rates without bronchopulmonary dysplasia. Surfactant should be administered early and ventilator settings adapted to changing oxygen requirements and lung mechanics. Side effects including initial bradycardia, oxygen desaturation, tube obstruction and isolated cases of pulmonary haemorrhage have been reported CONCLUSION: Less invasive surfactant therapy improves pulmonary outcomes in preterm neonates with RDS and should ideally be administered in combination with CPAP...
November 24, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29169167/structural-pulmonary-abnormalities-still-evident-in-schoolchildren-with-new-bronchopulmonary-dysplasia
#20
Eveliina Ronkainen, Marja Perhomaa, Lauri Mattila, Mikko Hallman, Teija Dunder
BACKGROUND: A new pattern of bronchopulmonary dysplasia (BPD) has emerged with the improved survival of preterm children. OBJECTIVES: Our aim was to characterize structural abnormalities associated with new BPD and to evaluate whether the severity of high-resolution computed tomography (HRCT) changes is associated with lung function. METHODS: HRCT scans were performed on 21 schoolchildren with a history of new BPD (mild, n = 9; moderate, n = 4; and severe, n = 8) with a mean age of 12...
November 24, 2017: Neonatology
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