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Dysplasia bronchopulmonary

Cho-Ming Chao, Faady Yahya, Alena Moiseenko, Caterina Tiozzo, Amit Shrestha, Negah Ahmadvand, Elie El Agha, Jennifer Quantius, Salma Dilai, Vahid Kheirollahi, Matthew Jones, Jochen Wilhem, Gianni Carraro, Harald Ehrhardt, Klaus-Peter Zimmer, Guillermo Barreto, Katrin Ahlbrecht, Rory E Morty, Susanne Herold, Rosanna G Abellar, Werner Seeger, Ralph Schermuly, Jin-San Zhang, Parviz Minoo, Saverio Bellusci
Inflammation-induced FGF10 protein deficiency is associated with bronchopulmonary dysplasia (BPD), a chronic lung disease of prematurely born infants characterized by arrested alveolar development. So far, experimental evidence for a direct role of FGF10 in lung disease is lacking. Using the hyperoxia-induced neonatal lung injury as a mouse model of BPD, the impact of Fgf10 deficiency in Fgf10(+/-) versus Fgf10(+/+) pups was investigated. In normoxia, no lethality of Fgf10(+/+) or Fgf10(+/-) pups was observed...
October 22, 2016: Journal of Pathology
Megan O'Reilly, Bernard Thébaud
Preterm birth occurs in approximately 11 % of all births worldwide. Advances in perinatal care have enabled the survival of preterm infants born as early as 23-24 weeks of gestation. However, many are affected by bronchopulmonary dysplasia (BPD)-a common respiratory complication of preterm birth, which has life-long consequences for lung health. Currently, there is no specific treatment for BPD. Recent advances in stem cell research have opened new therapeutic avenues for prevention/repair of lung damage...
October 22, 2016: Cell and Tissue Research
Kai König, Katelyn J Guy, Claudia A Nold-Petry, Charles P Barfield, Geraldine Walsh, Sandra M Drew, Alex Veldman, Marcel F Nold, Dan M Casalaz
Bronchopulmonary dysplasia (BPD) is often complicated by pulmonary hypertension (PH). We investigated three biomarkers potentially suitable as screening markers for extremely preterm infants at risk of BPD-associated PH. In this prospective observational cohort study conducted in a tertiary neonatal intensive care unit, 83 preterm infants with BPD born <28 weeks gestation and still inpatients at 36 weeks corrected age received an echocardiogram and blood tests of B-type natriuretic peptide (BNP), troponin I, and YKL-40...
October 19, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
Jason Gien, Nancy Tseng, Gregory J Seedorf, Katherine Kuhn, Steven H Abman
Bronchopulmonary dysplasia (BPD) is the chronic lung disease associated with premature birth, characterized by impaired vascular and alveolar growth. In neonatal rats bleomycin decreases lung growth and causes pulmonary hypertension (PH), which is poorly responsive to nitric oxide. In the developing lung, through rho-kinase (ROCK) activation, ET-1 impairs endothelial cell function, however, whether ET-1-ROCK interactions contribute to impaired vascular and alveolar growth in experimental BPD is unknown. Neonatal rats were treated daily with intra-peritoneal bleomycin with and without selective ETA (BQ123/BQ610) and ETB (BQ788) receptor blockers, non-selective ET receptor blocker (ETRB) (bosentan) or fasudil (ROCK inhibitor)...
October 19, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
E G Deryabina, G V Yakornova, L A Pestryaeva, N D Sandyreva
Preterm birth is defined as all births before 37 completed weeks of gestation. Preterm birth can be further sub-divided based on gestational age: extremely preterm (<28 weeks), very preterm (28 to <32 weeks) and moderate preterm (32 to <37 weeks). Retrospective observational case-control study review (1 year i.e., 2015) is to assess pregnancy outcome among women with gestational diabetes mellitus (GDM) delivering very preterm (28 + 0/7 to 31 + 6/7 weeks of gestation). The study group included all women diagnosed with GDM and were compared to a control group of women delivering at the same gestational age period but without GDM...
October 2016: Gynecological Endocrinology
Anne Synnes, Thuy Mai Luu, Diane Moddemann, Paige Church, David Lee, Michael Vincer, Marilyn Ballantyne, Annette Majnemer, Dianne Creighton, Junmin Yang, Reginald Sauve, Saroj Saigal, Prakesh Shah, Shoo K Lee
OBJECTIVES: Identify determinants of neurodevelopmental outcome in preterm children. METHODS: Prospective national cohort study of children born between 2009 and 2011 at <29 weeks gestational age, admitted to one of 28 Canadian neonatal intensive care units and assessed at a Canadian Neonatal Follow-up Network site at 21 months corrected age for cerebral palsy (CP), visual, hearing and developmental status using the Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III)...
October 6, 2016: Archives of Disease in Childhood. Fetal and Neonatal Edition
C Gonçalves, G Wandalsen, F Lanza, A L Goulart, D Solé, A Dos Santos
BACKGROUND: Prevalence of allergic diseases and impaired pulmonary function may be high in children born prematurely. This study aimed to assess pulmonary function and prevalence of asthma, atopic diseases and allergic sensitisation in these patients. METHODS: A cross-sectional study was conducted with children aged 6-14 years who were born prematurely with birth weight <2000g from January 2008 to May 2011. Exclusion criteria were: major malformations, or acute respiratory disorders...
October 15, 2016: Allergologia et Immunopathologia
Dirk Bassler
Theoretically, administration of inhaled corticosteroids may allow for beneficial effects on the pulmonary system of infants with evolving or established bronchopulmonary dysplasia (BPD) with a lower risk of undesirable side effects compared to systemic corticosteroids. However, before deciding whether to use inhaled corticosteroids for BPD in routine clinical practice, the available randomized study data need to be considered. Currently published systematic reviews from the Cochrane Collaboration conclude that there is no role for inhaled corticosteroids in neither prevention nor treatment of BPD outside clinical trials...
October 19, 2016: Journal of Maternal-fetal & Neonatal Medicine
Eugenio Baraldi, Giuseppe Giordano, Matteo Stocchero, Laura Moschino, Patrizia Zaramella, Maria Rosa Tran, Silvia Carraro, Roberto Romero, Maria Teresa Gervasi
OBJECTIVE: Bronchopulmonary dysplasia (BPD) is a serious complication associated with preterm birth. A growing body of evidence suggests a role for prenatal factors in its pathogenesis. Metabolomics allows simultaneous characterization of low molecular weight compounds and may provide a picture of such a complex condition. The aim of this study was to evaluate whether an unbiased metabolomic analysis of amniotic fluid (AF) can be used to investigate the risk of spontaneous preterm delivery (PTD) and BPD development in the offspring...
2016: PloS One
Wannasiri Lapcharoensap, Peiyi Kan, Richard J Powers, Gary M Shaw, David K Stevenson, Jeffrey B Gould, David D Wirtschafter, Henry C Lee
OBJECTIVE: To examine whether recent reductions in rates of nosocomial infection have contributed to changes in rates of bronchopulmonary dysplasia (BPD) in a population-based cohort. STUDY DESIGN: This was a retrospective, population-based cohort study that used the California Perinatal Quality Care Collaborative database from 2006 to 2013. Eligible infants included those less than 30 weeks' gestational age and less than 1500 g who survived to 3 days of life. Primary variables of interest were rates of nosocomial infections and BPD...
October 11, 2016: Journal of Pediatrics
Kathleen A Kennedy, C Michael Cotten, Kristi L Watterberg, Waldemar A Carlo
Despite remarkable improvements in survival of extremely premature infants, the burden of BPD among survivors remains a frustrating problem for parents and caregivers. Advances, such as antenatal steroids and surfactant replacement, which have dramatically improved survival, have not reduced BPD among survivors. Other advances that have significantly improved the combined outcome of death or BPD, such as vitamin A and avoidance of mechanical ventilation, have had smaller magnitude effects on the outcome of BPD alone...
October 2016: Seminars in Perinatology
Jens Henrichs, Viki Verfaille, Laura Viester, Myrte Westerneng, Bert Molewijk, Arie Franx, Henriette van der Horst, Judith E Bosmans, Ank de Jonge, Petra Jellema
BACKGROUND: Intrauterine growth retardation (IUGR) is a major risk factor for perinatal mortality and morbidity. Thus, there is a compelling need to introduce sensitive measures to detect IUGR fetuses. Routine third trimester ultrasonography is increasingly used to detect IUGR. However, we lack evidence for its clinical effectiveness and cost-effectiveness and information on ethical considerations of additional third trimester ultrasonography. This nationwide stepped wedge cluster-randomized trial examines the (cost-)effectiveness of routine third trimester ultrasonography in reducing severe adverse perinatal outcome through subsequent protocolized management...
October 13, 2016: BMC Pregnancy and Childbirth
Hanna Knihtilä, Anne Kotaniemi-Syrjänen, Anna S Pelkonen, Satu Kalliola, Mika J Mäkelä, L Pekka Malmberg
INTRODUCTION: Early origins of chronic obstructive pulmonary disease have been recognized. Impulse oscillometry (IOS) is suitable for assessment of lung function also in preschool children, and some novel indices have been connected to assessment of small airway function. However, limited data exist on the sensitivity of these new indices to detect lung function deficits in young symptomatic children. METHODS: IOS measurements of 103 healthy preschool children were evaluated to establish reference equations for the difference between respiratory resistance at 5 and 20 Hz (R5-20), the relative difference of R5-20 (R5-20%), and area under the reactance curve (AX)...
October 13, 2016: Pediatric Pulmonology
A Kugelman, M Peniakov, S Zangen, Y Shiff, A Riskin, A Iofe, I Shoris, D Bader, S Arnon
OBJECTIVE: The efficacy of inhaled steroids in spontaneously breathing infants with established bronchopulmonary dysplasia (BPD) is debatable. The inhaled steroid hydrofluoalkane-beclomethasone dipropionate (QVAR) is unique in its small particle size that results in higher lung deposition. Our objective was to determine if inhaled QVAR could decrease respiratory rehospitalizations of infants with established BPD. STUDY DESIGN: Double-blind, randomized placebo-controlled, multicenter pilot study...
October 13, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
Jordi Ruiz-Camp, José Alberto Rodríguez-Castillo, Susanne Herold, Konstantin Mayer, István Vadász, Michelle D Tallquist, Werner Seeger, Katrin Ahlbrecht, Rory E Morty
Bronchopulmonary dysplasia (BPD) is the most common complication of preterm birth characterized by blunted post-natal lung development. BPD can be modelled in mice by exposure of newborn mouse pups to elevated oxygen levels. Little is known about the mechanisms of perturbed lung development associated with BPD. The advent of transgenic mice, where genetic rearrangements can be induced in particular cell-types at particular time-points during organogenesis, have great potential to explore the pathogenic mechanisms at play during arrested lung development...
October 11, 2016: Transgenic Research
Sanjay Chawla, Girija Natarajan, Seetha Shankaran, Athina Pappas, Barbara J Stoll, Waldemar A Carlo, Shampa Saha, Abhik Das, Abbot R Laptook, Rosemary D Higgins
Importance: Many premature infants are born without exposure to antenatal steroids (ANS) or with incomplete courses. This study evaluates the dose-dependent effect of ANS on rates of neonatal morbidities and early childhood neurodevelopmental outcomes of extremely premature infants. Objective: To compare rates of neonatal morbidities and 18- to 22-month neurodevelopmental outcomes of extremely premature infants exposed to no ANS or partial or complete courses of ANS...
October 10, 2016: JAMA Pediatrics
Ann Hellström, David Ley, Ingrid Hansen-Pupp, Boubou Hallberg, Luca A Ramenghi, Chatarina Löfqvist, Lois E H Smith, Anna-Lena Hård
Retinopathy of prematurity is a potentially blinding disease, which is associated with low neonatal IGF-I serum concentrations and poor growth. In severe cases impaired retinal vessel growth is followed by pathologic neovascularization, which may lead to retinal detachment. IGF-I may promote growth even in catabolic states. Treating preterm infants with recombinant human (rh) IGF-I to concentrations normally found during gestation has been suggested to have a preventative effect on ROP. A recent phase 2 study treating infants (gestational age between 23weeks+0days and 27weeks +6days) with rhIGF-I/IGF binding protein-3 until 30 postmenstrual weeks showed no effect on ROP but a 53% reduction in severe bronchopulmonary dysplasia and 44% reduction in severe intraventricular hemorrhage...
September 28, 2016: Growth Hormone & IGF Research
Chiharu Ota, Hoeke A Baarsma, Darcy E Wagner, Anne Hilgendorff, Melanie Königshoff
Bronchopulmonary dysplasia (BPD) is one of the most common chronic lung diseases in infants caused by pre- and/or postnatal lung injury. BPD is characterized by arrested alveolarization and vascularization due to extracellular matrix remodeling, inflammation, and impaired growth factor signaling. WNT signaling is a critical pathway for normal lung development, and its altered signaling has been shown to be involved in the onset and progression of incurable chronic lung diseases in adulthood, such as chronic obstructive pulmonary disease (COPD) or idiopathic pulmonary fibrosis (IPF)...
December 2016: Molecular and Cellular Pediatrics
Ibrahim Sammour, Santhosh Somashekar, Jian Huang, Sunil Batlahally, Matthew Breton, Krystalenia Valasaki, Aisha Khan, Shu Wu, Karen C Young
BACKGROUND: Mesenchymal stem cells (MSC) improve alveolar and vascular structures in experimental models of bronchopulmonary dysplasia (BPD). Female MSC secrete more anti-inflammatory and pro-angiogenic factors as compared to male MSC. Whether the therapeutic efficacy of MSC in attenuating lung injury in an experimental model of BPD is influenced by the sex of the donor MSC or recipient is unknown. Here we tested the hypothesis that female MSC would have greater lung regenerative properties than male MSC in experimental BPD and this benefit would be more evident in males...
2016: PloS One
R Sahni, X Ameer, K Ohira-Kist, J-T Wung
OBJECTIVES: Inhaled nitric oxide (iNO) is effective in conjunction with tracheal intubation (TI) and mechanical ventilation (MV) for treating arterial pulmonary hypertension and hypoxemic respiratory failure (HRF) in near-term and term newborns. Non-invasive respiratory support with nasal continuous positive airway pressure (CPAP) is increasingly used to avoid morbidity associated with TI and MV, yet the effectiveness of iNO delivery via nasal CPAP remains unknown. To evaluate the effectiveness of iNO delivered via the bubble nasal CPAP system in term and preterm newborns with HRF...
October 6, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
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