Abstract:
BACKGROUND:Treatment of bronchopulmonary dysplasia (BPD) remains as yet an unmet clinical need and recently stem cells have been proposed as a therapeutic tool in animal models. We investigated the role of amniotic fluid stem cells (AFS) in an adult rat model of hyperoxia lung injury. METHODS:Fifty Sprague-Dawley rats were, at birth, randomly exposed to moderate hyperoxia or room air for 14 days and a single dose of human amniotic fluid stem (hAFS) or human Fibroblasts (hF), cells was delivered intratracheally (P21). At P42 animals were euthanized and lung tissue examined using histology, immunohistochemistry, PCR, and ELISA. hAFS cells characterization and homing were studied by immunofluorescence. RESULTS:In rats treated with hAFS and hF cells 16S human rRNA fragment was detected. Despite a low level of pulmonary hAFS cell retention (1.43 ± 0.2% anti-human-mitochondria-positive cells), the lungs of the treated animals revealed higher secondary crest numbers and lower mean linear intercept and alveolar size, than those exposed to hyperoxia, those left untreated or treated with hF cells. Except for those treated with hAFS cells, moderate hyperoxia induced an increase in protein content of IL-6, IL-1β, as well as IF-γ and TGF-1β in lung tissues. High VEGF expression and arrangement of capillary architecture in hAFS cell group were also detected. CONCLUSIONS:Treatment with hAFS cells has a reparative potential through active involvement of cells in alveolarization and angiogenesis. A downstream paracrine action was also taken into account, in order to understand the immunodulatory response.
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Grisafi D,Pozzobon M,Dedja A,Vanzo V,Tomanin R,Porzionato A,Macchi V,Salmaso R,Scarpa M,Cozzi E,Fassina A,Navaglia F,Maran C,Onisto M,Caenazzo L,De Coppi P,De Caro R,Chiandetti L,Zaramella Pdoi
10.1002/ppul.22791subject
Has Abstractpub_date
2013-11-01 00:00:00pages
1070-80issue
11eissn
8755-6863issn
1099-0496journal_volume
48pub_type
杂志文章abstract:UNLABELLED:Very low birth weight (VLBW) infants, even those without bronchopulmonary dysplasia (BPD) are at risk for pulmonary morbidity during infancy. Although some studies have found an association between the level of neonatal oxygen exposure and later morbidity, others have not. A possible explanation for these in...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21199
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Social and family factors may influence the probability of achieving asthma control in children. Parents' quality of life has been insufficiently explored as a predictive factor linked to the probability of achieving disease control in asthmatic children. OBJECTIVE:Determine whether the parents' quality of ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23336
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:We hypothesized airway inflammation can be detected non-invasively by induced sputum (IS) or peripheral blood eosinophilia, and IS can detect bacterial and viral infection in preschool children with airway disease, with results comparable to broncho-alveolar lavage (BAL). METHODS:Preschool children with cys...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23366
更新日期:2016-08-01 00:00:00
abstract::Drug reaction with eosinophilia and systemic symptom (DRESS) syndrome is a rare and severe side-effect, mainly described after intake of anticonvulsants, allopurinol, or antibiotics. It usually begins within 2 months after drug introduction. Symptoms include cutaneous rash, hematologic abnormalities, and internal orga...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23567
更新日期:2017-04-01 00:00:00
abstract::Airway obstruction in children is a rare, but difficult clinical problem, with no clear agreement on optimal therapeutic approach. Stenting of the airway has been used successfully in adults, and is an attractive alternative in children. Fundamental differences of pediatric compared to adult use include the benign nat...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.20790
更新日期:2008-04-01 00:00:00
abstract::We describe a method for measuring carbon monoxide diffusing capacity (DL(CO)) and alveolar volume (V(A)) in sleeping infants, using a single 4-sec breath-hold technique. The breath-hold maneuver is obtained by inducing a respiratory pause of the respiratory system. Several inflations of the respiratory system with ro...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20403
更新日期:2006-06-01 00:00:00
abstract::We have studied the effect of triamcinolone acetonide (TAC) on airway morphogenesis of the Sprague-Dawley fetal rat in whole organ lung cultures from day 15 to day 21 of equivalent gestational age (6 days in culture). TAC produced an increased number of peripheral buds from day 18 onward and the airway and airspaces h...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950140107
更新日期:1992-09-01 00:00:00
abstract::Although Mycobacterium fortuitum (MF) is a non-tuberculous mycobacterium that rarely causes disease, there are reported cases of pneumonia, lung abscess, and empyema in subjects with predisposing lung disease. We report a neonate, without predisposing disease or risk factors, who manifested pneumonia and lung abscess....
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22558
更新日期:2012-10-01 00:00:00
abstract::The pediatric pneumogram is a frequently used tool in the diagnosis and management of apnea during infancy. We analyzed 287 pneumographic recordings from 123 full-term infants (63 males) obtained during the first 12 months of life to establish normative values for apnea, periodic breathing, and bradycardia. The result...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950010409
更新日期:1985-07-01 00:00:00
abstract::In this article, we highlight cystic fibrosis (CF) research published in Pediatric Pulmonology during 2014, as well as related articles published in other journals. ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.23309
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVES:To report the respiratory function of school-aged children with infantile Pompe disease (IPD) who started enzyme replacement therapy (ERT) in infancy and early childhood. STUDY DESIGN:This is a retrospective chart review of pulmonary function tests of: (a) patients with IPD 5 to 18 years of age, (b) who wer...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24621
更新日期:2020-03-01 00:00:00
abstract:UNLABELLED:Vascular rings (VR) may produce extrinsic compression of trachea and/or esophagus. Diagnosis relies on nonspecific clinical data from resulting compression and image studies, mainly angiography, computed tomography, and cardiovascular MRI. Because of their low incidence, diagnosis is often missed. The role o...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21216
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:In young children with cystic fibrosis (CF) the forced expiratory volume in 1 second (FEV1 ) is often normal and a more sensitive measure to detect early obstructive lung disease is needed. AIM:To evaluate the progression of selected spirometry parameters with age in a cohort of CF patients and healthy chil...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22777
更新日期:2013-11-01 00:00:00
abstract::There is a need to judge general exercise tolerance in children with cystic fibrosis (CF) under normal daily activity conditions and -when more extensive testing is required-in an exercise laboratory in a specialized center. We investigated the reproducibility, validity, and criterion for a 6-minute walking test, whic...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(SICI)1099-0496(199608)22:2<85::AID-PPUL1>
更新日期:1996-08-01 00:00:00
abstract:OBJECTIVES:To investigate the effect of position on the strength of the Hering-Breuer reflex in prematurely born infants and determine whether any differences seen were related to differences in lung or tidal volume between positions. WORKING HYPOTHESIS:Position related differences in the strength of the Hering-Breuer...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20855
更新日期:2008-08-01 00:00:00
abstract::With dual energy X-ray absorptiometry (DEXA), it is possible to quantitate important aspects of growth in children with cystic fibrosis (CF), supplementing the usual measures of height and weight. Of particular concern during growth is the accumulation of bone mineral, since osteoporosis and fractures are well-recogni...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(sici)1099-0496(199902)27:2<80::aid-ppul3>
更新日期:1999-02-01 00:00:00
abstract::Some studies have suggested that lung clearance index (LCI) is age-independent among healthy subjects early in life, which implies that ventilation distribution does not vary with growth. However, other studies of older children and adolescents suggest that ventilation becomes more homogenous with somatic growth. We d...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21553
更新日期:2012-04-01 00:00:00
abstract::Bronchopulmonary dysplasia (BPD) is a chronic obstructive pulmonary disease of prematurely born infants following prolonged mechanical ventilation and oxygen therapy. Developmental changes in pulmonary function of children with BPD during their early years have been difficult to study. We longitudinally studied maxima...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950110103
更新日期:1991-01-01 00:00:00
abstract::The goal of the present investigation was to describe the prevalence of and clinical factors associated with sleep-disordered breathing in children and adolescents. Children and adolescents (3,680 in all, 1-18 years old) attending schools in central Greece were surveyed by questionnaires distributed to parents. We fou...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.20002
更新日期:2004-06-01 00:00:00
abstract::Cystic fibrosis (CF) is an illness associated with high healthcare utilization and healthcare costs, even when compared to other chronic illnesses. In a variety of medical populations, depression has been found to be associated with lower adherence and poorer medical outcomes. The current study is a retrospective char...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22990
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Simulated exhaled nitric oxide (eNO) depends on ventilatory settings used in different experimental conditions. OBJECTIVES:To normalize the simulated minute exhaled nitric oxide according to different ventilatory settings. WORKING HYPOTHESIS:Different ventilatory settings influence the concentrations of ex...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20893
更新日期:2008-12-01 00:00:00
abstract::The prevalence of respiratory syncytial virus (RSV) infection was studied during three consecutive annual outbreaks (1983-1986) in SR Croatia, Yugoslavia. A total of 1,238 subjects were examined, using RSV isolation and immunofluorescent (DTFA) methods, with 1,042 showing the signs of respiratory infection and 207 of ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950030505
更新日期:1987-09-01 00:00:00
abstract:RATIONALE OF THE STUDY:Increased neonatal fraction of exhaled nitric oxide (FeNO) is associated with lung symptoms early in life, while predictors of neonatal FeNO levels are unknown. The objective of this study was to investigate perinatal and genetic predictors of FeNO in healthy at-risk neonates. METHODS:FeNO was m...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22958
更新日期:2015-02-01 00:00:00
abstract::Pulmonary function testing and monitoring plays an important role in the respiratory management of neonates. A noninvasive and complete bedside evaluation of the respiratory status is especially useful in critically ill neonates to assess disease severity and resolution and the response to pharmacological intervention...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.23245
更新日期:2015-10-01 00:00:00
abstract::To systematically review the clinical outcomes of surfactant administration via a thin endotracheal catheter during spontaneous breathing compared with conventional administration involving tracheal intubation, mechanical ventilation (MV), and tracheal extubation, in preterm infants. PubMed, EMBASE, and the Cochrane L...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.23651
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:Cystic fibrosis (CF) patients may develop hypoxemia during sleep. Limited information is available on nocturnal oxygen saturation in CF children with less severe lung disease. The aim of this study was to investigate the degree of nocturnal oxygen desaturation and factors that correlate with nocturnal oxygena...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20643
更新日期:2007-08-01 00:00:00
abstract::Allergic bronchopulmonary aspergillosis (ABPA) is a complication commonly encountered in patients with CF that produces significant respiratory morbidity. Chronic airway colonization with Aspergillus induces strong inflammatory responses with high IgE levels. Current guidelines for therapy include prolonged courses of...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20804
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVE:Extremely low gestational age neonates (ELGANs) are at risk for pulmonary hypertension (PH). We hypothesized that PH, defined by echocardiogram at 36 weeks gestational age (GA), would associate with respiratory morbidity, increased oxidant stress, and reduced nitric oxide production. STUDY DESIGN:ELGANs in t...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23913
更新日期:2018-03-01 00:00:00
abstract::The assessment of apnea and asynchronous breathing requires the application of a facemask connected to a pneumotachograph and inductive transducer bands placed around the chest wall. These contact devices may alter the breathing pattern and are difficult to implement, especially in infants and children. This study val...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21570
更新日期:2012-05-01 00:00:00
abstract::Tracheal mucosal damage has been reported in autopsy specimens of cases with proximal esophageal atresia and distal tracheoesophageal fistula (EA-TEF) (Gross classification type C). Such changes have not been reported for isolated EA (Gross classification type A). Our hypothesis is that passage of amniotic fluid (AF) ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20490
更新日期:2006-11-01 00:00:00