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Bronchopulmonary Dysplasia

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https://www.readbyqxmd.com/read/29152899/lung-function-after-extremely-preterm-birth-a-population-based-cohort-study-express
#1
Per Thunqvist, Ellen Tufvesson, Leif Bjermer, Anna Winberg, Vineta Fellman, Magnus Domellöf, Erik Melén, Mikael Norman, Jenny Hallberg
BACKGROUND AND OBJECTIVES: Follow-up studies of children and young adults born very-to-moderately preterm show persistent and significant lung function deficits. The aim of the study was to determine lung function and airway mechanics in school-aged children born in 2004 to 2007 and extremely preterm (after 22-26 weeks of gestation). METHODS: In a population-based cohort of children born extremely preterm and controls born at term (n = 350), follow-up at 6½-years-of-age was performed using spirometry and impulse oscillometry...
November 20, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29146235/macrophages-their-role-activation-and-polarization-in-pulmonary-diseases
#2
REVIEW
Shweta Arora, Kapil Dev, Beamon Agarwal, Pragnya Das, Mansoor Ali Syed
Macrophages, circulating in the blood or concatenated into different organs and tissues constitute the first barrier against any disease. They are foremost controllers of both innate and acquired immunity, healthy tissue homeostasis, vasculogenesis and congenital metabolism. Two hallmarks of macrophages are diversity and plasticity due to which they acquire a wobbling array of phenotypes. These phenotypes are appropriately synchronized responses to a variety of different stimuli from either the tissue microenvironment or - microbes or their products...
November 12, 2017: Immunobiology
https://www.readbyqxmd.com/read/29144252/can-we-understand-the-pathobiology-of-bronchopulmonary-dysplasia
#3
Cristina M Alvira, Rory E Morty
No abstract text is available yet for this article.
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29138031/mortality-and-pulmonary-outcomes-of-extremely-preterm-infants-exposed-to-antenatal-corticosteroids
#4
Colm P Travers, Waldemar A Carlo, Scott A Mcdonald, Abhik Das, Edward F Bell, Namasivayam Ambalavanan, Alan H Jobe, Ronald N Goldberg, Carl T D'Angio, Barbara J Stoll, Seetha Shankaran, Abbot R Laptook, Barbara Schmidt, Michele C Walsh, Pablo J Sanchez, M Bethany Ball, Ellen C Hale, Nancy S Newman, Rosemary D Higgins
BACKGROUND: Antenatal corticosteroids are given primarily to induce fetal lung maturation but results from meta-analyses of randomized controlled trials have not shown mortality or pulmonary benefits for extremely preterm infants although these are the infants most at risk of mortality and pulmonary disease. OBJECTIVE: To determine if exposure to antenatal corticosteroids is associated with a lower rate of death and pulmonary morbidities by 36 weeks' postmenstrual age...
November 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29137270/human-mesenchymal-stem-cells-ameliorate-experimental-pulmonary-hypertension-induced-by-maternal-inflammation-and-neonatal-hyperoxia-in-rats
#5
Chung-Ming Chen, Willie Lin, Liang-Ti Huang, Hsiu-Chu Chou
Pulmonary hypertension is a critical problem in infants with bronchopulmonary dysplasia. This study determined the therapeutic effects of human mesenchymal stem cells (MSCs) on pulmonary hypertension in an animal model. Pregnant Sprague-Dawley rats were intraperitoneally injected with lipopolysaccharide (LPS, 0.5 mg/kg/day) on gestational days 20 and 21. The pups were randomly assigned to two treatment conditions: room air (RA) or an O2-enriched atmosphere. On postnatal day 5, they were intratracheally transplanted with human MSCs (3 × 10(5) and 1 × 10(6) cells) in 0...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136357/association-of-cytokine-gene-polymorphisms-with-bronchopulmonary-dysplasia-in-han-chinese-newborns
#6
Hui Chen, Wei Zheng
OBJECTIVE: To investigate the association of 14 cytokine gene polymorphisms with bronchopulmonary dysplasia (BPD) among Han Chinese newborns. The 14 polymorphisms investigated were IL18 rs1946519, rs1946518, rs187238, rs360718, and rs360717 polymorphisms, IL10 rs3024493 polymorphism, IL6 rs1800795, rs1800796, and rs1800797 polymorphisms, TNF rs361525 and rs1800629 polymorphisms, and TGFB1 rs1800469, rs1800468, and rs1800471 polymorphisms. WORKING HYPOTHESIS: The polymorphisms could be associated with the risk of BPD among Han Chinese newborns...
November 14, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29136344/the-hypoxic-test-in-preterm-neonates-reinvestigated
#7
Christelle Kouakam, Erwan Stephan-Blanchard, André Léké, Guy Kongolo, Elodie Haraux, Stéphane Delanaud, Frédéric Telliez, Karen Chardon
AIM: We currently lack a suitable gold-standard method for implementation on modern equipment to assess peripheral chemoreceptor sensitivity. The aim of the present study was to develop an accurate and reproducible method for assessing peripheral chemoreceptors sensitivity in sleeping preterm neonates. METHODS: A poïkilocapnic hypoxic test was performed twice during rapid eye movement sleep (REM sleep) and non-rapid eye movement sleep (nonREM sleep). The infant breathed hypoxic gas (15% O2 ) for 60 s...
November 14, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29132744/-morphometry-of-pulmonary-tissue-from-manual-to-high-throughput-automation
#8
C Sallon, D Soulet, Y Tremblay
Weibel's research has shown that any alteration of the pulmonary structure has effects on function. This demonstration required a quantitative analysis of lung structures called morphometry. This is possible thanks to stereology, a set of methods based on principles of geometry and statistics. His work has helped to better understand the morphological harmony of the lung, which is essential for its proper functioning. An imbalance leads to pathophysiology such as chronic obstructive pulmonary disease in adults and bronchopulmonary dysplasia in neonates...
November 10, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/29131394/shaken-or-stirred-evaluating-the-combination-of-budesonide-surfactant-for-survival-free-of-bronchopulmonary-dysplasia
#9
Kent Willis, Mark Weems
No abstract text is available yet for this article.
November 13, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29131022/an-echocardiographic-screening-program-helps-to-identify-pulmonary-hypertension-in-extremely-low-birthweight-infants-with-and-without-bronchopulmonary-dysplasia-a-single-center-experience
#10
Katrin Mehler, Floris E Udink Ten Cate, Titus Keller, Ursula Bangen, Angela Kribs, André Oberthuer
BACKGROUND: Pulmonary hypertension (PH) affects 1 in 6 infants with a birthweight <1,000 g (extremely low birthweight; ELBW) and is frequently associated with bronchopulmonary dysplasia (BPD). If untreated, the mortality rates of the disease are high. OBJECTIVES: The aim of this study was to characterize risk factors for PH in ELBW infants and to describe the timing of onset of the disease by setting up a screening program. METHODS: ELBW infants treated at the Department of Neonatology (level III neonatal intensive care unit at the University of Cologne Medical Centre, Germany) between January 2010 and March 2015 were included...
November 8, 2017: Neonatology
https://www.readbyqxmd.com/read/29129516/is-there-a-potential-link-between-vitamin-d-and-pulmonary-morbidities-in-preterm-infants
#11
Yang Yang, Yun Feng, Xu Chen, Xiao-Nan Mao, Jing-Han Zhang, Li Zhao, You-Yan Zhao, Rui Cheng
BACKGROUND: There hasn't been conclusive proof about the association between vitamin D and pulmonary morbidities of prematurity. METHODS: 106 preterm infants were retrospectively included into this study. Clinical data and blood samples of all the patients were collected within 24 h of admission. RESULTS: (1) Respiratory distress syndrome (RDS) patients were mainly concentrated in "≤30 weeks" stage when compared with other two gestational age groups...
November 9, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29127622/the-joint-effects-of-antenatal-steroids-and-gestational-age-on-improved-outcomes-in-neonates
#12
Neal D Goldstein, Kaitlin M Kenaley, Robert Locke, David A Paul
OBJECTIVES: Antenatal corticosteroids are standard of care for women at risk of a preterm birth and demonstrated to be protective against poor outcomes in neonates including respiratory disorders, mortality and intraventricular hemorrhage (IVH). Its benefits may vary by gestational age, and accurate estimation is needed in a single-center population to account for practice variation. METHODS: A retrospective cohort of infants admitted to the hospital's neonatal intensive care unit, 1997-2015...
November 10, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/29126435/human-amnion-cells-reverse-acute-and-chronic-pulmonary-damage-in-experimental-neonatal-lung-injury
#13
Dandan Zhu, Jean Tan, Amina S Maleken, Ruth Muljadi, Siow T Chan, Sin N Lau, Kirstin Elgass, Bryan Leaw, Joanne Mockler, Daniel Chambers, Kristen T Leeman, Carla F Kim, Euan M Wallace, Rebecca Lim
BACKGROUND: Despite advances in neonatal care, bronchopulmonary dysplasia (BPD) remains a significant contributor to infant mortality and morbidity. While human amnion epithelial cells (hAECs) have shown promise in small and large animal models of BPD, there is scarce information on long-term benefit and clinically relevant questions surrounding administration strategy remain unanswered. In assessing the therapeutic potential of hAECs, we investigated the impact of cell dosage, administration routes and timing of treatment in a pre-clinical model of BPD...
November 10, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29125893/mesenchymal-stem-cells-for-the-prevention-and-treatment-of-bronchopulmonary-dysplasia-in-preterm-infants
#14
REVIEW
Maria Pierro, Bernard Thébaud, Roger Soll
BACKGROUND: Bronchopulmonary dysplasia (BPD) remains a major complication of prematurity and currently lacks efficient treatments. Mesenchymal stem/stromal cells (MSCs) have been extensively explored as a potential therapy in several preclinical and clinical settings. Human and animal MSCs have been shown to prevent and treat lung injury in various preclinical models of lung diseases, including experimental BPD. OBJECTIVES: To determine if MSCs, administered intravenously or endotracheally, are safe and effective in preventing or treating BPD, or both, in preterm infants...
November 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29119673/efficacy-of-antenatal-corticosteroids-in-preterm-twins-the-epipage2-cohort-study
#15
Déborah Palas, Virginie Ehlinger, Corinne I Alberge, Patrick Truffert, Gilles Kayem, François Goffinet, Pierre-Yves Ancel, Catherine Arnaud, Christophe Vayssiere
OBJECTIVES: To investigate the efficacy of ACS therapy on short-term neonatal outcomes in preterm twins and further document the influence of the ACS-to-delivery interval. DESIGN: EPIPAGE2 is a nationwide observational multicentre prospective cohort study of neonates born between 22 and 34 completed weeks of gestation. SETTING: All French maternity units, except in a single administrative regions, between March and December 2011. POPULATION: 750 twin neonates born between 24 and 31 weeks of gestation...
November 8, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29118720/altered-right-ventricular-mechanical-properties-are-afterload-dependent-in-a-rodent-model-of-bronchopulmonary-dysplasia
#16
Jitandrakumar R Patel, Gregory P Barton, Rudolf K Braun, Kara N Goss, Kristin Haraldsdottir, Alexandria Hopp, Gary Diffee, Timothy A Hacker, Richard L Moss, Marlowe W Eldridge
Infants born premature are at increased risk for development of bronchopulmonary dysplasia (BPD), pulmonary hypertension (PH), and ultimately right ventricular (RV) dysfunction, which together carry a high risk of neonatal mortality. However, the role alveolar simplification and abnormal pulmonary microvascular development in BPD affects RV contractile properties is unknown. We used a rat model of BPD to examine the effect of hyperoxia-induced PH on RV contractile properties. We measured in vivo RV pressure as well as passive force, maximum Ca(2+) activated force, calcium sensitivity of force (pCa50) and rate of force redevelopment (ktr) in RV skinned trabeculae isolated from hearts of 21-and 35-day old rats pre-exposed to 21% oxygen (normoxia) or 85% oxygen (hyperoxia) for 14 days after birth...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29116547/the-bpd-trio-interaction-of-dysregulated-pdgf-vegf-and-tgf-signaling-in-neonatal-chronic-lung-disease
#17
REVIEW
Prajakta Oak, Anne Hilgendorff
The development of neonatal chronic lung disease (nCLD), i.e., bronchopulmonary dysplasia (BPD) in preterm infants, significantly determines long-term outcome in this patient population. Risk factors include mechanical ventilation and oxygen toxicity impacting on the immature lung resulting in impaired alveolarization and vascularization. Disease development is characterized by inflammation, extracellular matrix remodeling, and apoptosis, closely intertwined with the dysregulation of growth factor signaling...
November 7, 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/29115559/attenuated-sumoylation-of-sirtuin-1-in-premature-neonates-with-bronchopulmonary-dysplasia
#18
Fengmei Tan, Wenbin Dong, Xiaoping Lei, Xingling Liu, Qingping Li, Lan Kang, Shuai Zhao, Chan Zhang
A prospective study was performed to investigate the effects of hyperoxia on the expression of small ubiquitin‑related modifier (SUMO) and sirtuin 1 (SIRT1) proteins, and to examine interactions between these proteins in premature neonates with bronchopulmonary dysplasia (BPD). Peripheral blood mononuclear cells (PBMCs) were isolated from residual venous blood samples of 20 premature infants with BPD and 20 gender‑matched premature infants without BPD (non‑BPD group). Expression levels of SUMO and SIRT1 proteins in PBMCs were assessed by western blot analysis, and their interactions in PBMCs were detected using the immunoprecipitation assay...
November 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113524/how-does-preeclampsia-affect-neonates-highlights-in-the-disease-s-immunity
#19
Lina R Marins, Leonardo B Anizelli, Ana L Sarquis, Mariana D Romanowski
INTRODUCTION: Preeclampsia (PE) is the primary obstetrical cause in one to four perinatal deaths. Although the etiology and pathogenesis of preeclampsia is not fully known, a proinflammatory immune state prevails and can disrupt fetal hematopoiesis. Some of the effects on the newborn include neonatal thrombocytopenia, neutropenia, a reduction in T regulatory cells and an increased cytotoxic natural killer cell profile. METHOD: Electronic databases were searched, and defined criteria were applied to select articles for review...
November 7, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29110343/a-possible-way-to-assess-tidal-exhaled-nitric-oxide-in-neonates-and-infants-treated-with-nasal-continuous-positive-airway-pressure
#20
Birgitte Johanne Schmidt, Pauline Schibler Reim, Ole Find Pedersen, Per Albertsen, Gorm Greisen, Inger Merete Jørgensen
The endogenous compound nitric oxide (NO) is released into the airways via inducible NO synthase (1),which has the capacity to produce NO when up-regulated by pro-inflammatory cytokines or exogenous factors, like hypoxia, bacterial toxins and viruses (2). Prematurely born infants are susceptible to various acute and chronic respiratory diseases, such as respiratory distress syndrome and bronchopulmonary dysplasia (BPD). BPD involves a range of lung function abnormalities and increases the risk of re-hospitalisation (3)...
November 6, 2017: Acta Paediatrica
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