Abstract:
:Fetuses of diabetic mothers who were exposed to excessive glucose show delayed maturation. Under these conditions, altered growth factor expression or signaling may have important regulatory influences. We examined the role of epidermal growth factor (EGF) in lung development and maternal diabetes in the rat. In order to evaluate the possible role of glucose for the expression of EGF and the growth of lung tissue, we performed in vitro studies with organotypic cultures of fetal alveolar cells obtained from control rats. Compared to pups of normal rats, the newborn rats of untreated diabetic rats had reduced body weight, but normal lung weight relative to body weight. The air:mesenchyme ratio and the average size of alveoli per mm(2) lung tissue were reduced. The immunoreactivity (IR) of EGF, which was quantified using a computerized image analysis system, appeared with increased intensity and was associated with a reduced intensity of surfactant protein A-IR. The only difference observed between pups of treated diabetic rats and controls was a decrease in the lung weight:body weight ratio. In organotypic cultures, the presence of 13 mmol/L glucose in the cell media increased immunoreactive staining against EGF, but decreased the incorporation of thymidine as compared to the results obtained with alveolar cells grown in a normophysiological concentration of glucose (3 mmol/L). Addition of EGF increased the thymidine incorporation only in cells grown in 3 mM glucose. These findings may indicate immaturity of the lungs of pups of untreated diabetic rats, and subtle alterations in the lungs of pups from treated diabetic rats. The results also suggest that glucose plays a role in the expression of EGF, and that cells exposed to high concentrations of glucose are less responsive to EGF.
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Thulesen J,Poulsen SS,Nexø E,Raaberg Ldoi
10.1002/(sici)1099-0496(200002)29:2<103::aid-ppul4subject
Has Abstractpub_date
2000-02-01 00:00:00pages
103-12issue
2eissn
8755-6863issn
1099-0496pii
10.1002/(SICI)1099-0496(200002)29:2<103::AID-PPUL4journal_volume
29pub_type
杂志文章abstract:BACKGROUND:The measurement of specific airway resistance during tidal breathing (sRaw(tb)) has gained popularity in children, but methodological concerns have been raised regarding the electronic compensation for the thermal artifact. The panting method (sRaw(p)) is efficient in minimizing the latter, but may be associ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22829
更新日期:2014-03-01 00:00:00
abstract::The term "atypical" pneumonia has been used to differentiate infections caused by Chlamydia pneumoniae, Mycoplasma pneumoniae, Legionella, and other related organisms from pneumonia caused by classic bacteria, the prototype being Streptococcus pneumoniae. However, recent studies demonstrated that the clinical presenta...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.10326
更新日期:2003-11-01 00:00:00
abstract:BACKGROUND:Different modalities of noninvasive respiratory support have been recommended for the management of acute bronchiolitis in the pediatric intensive care unit (PICU). High-flow nasal cannula (HFNC) is among the new modalities that have been widely used in the last decade. METHODS:This is a retrospective study...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24553
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:Disease burden in cystic fibrosis (CF) impacts quality of life, distress, and treatment adherence. The promoting resilience in stress management (PRISM), is a brief patient-focused intervention to promote resilience in adolescents and young adults (AYAs), which may mitigate the negative outcomes, and is prov...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.24574
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND:Multiple breath washout (MBW) in infants presents a number of technical challenges. Conventional MBW is based on simultaneous measurement of flow and gas concentrations. These two signals are aligned and combined to derive expired gas volumes from which lung volumes and measures of ventilation inhomogeneity ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23348
更新日期:2016-05-01 00:00:00
abstract:INTRODUCTION:Induced sputum sampling holds promise as a method for obtaining samples representative of the lower airways in young children. Collection of induced sputum samples in young children differs from older children and adults' as pharyngeal suctioning is often required. Our aim was to determine the sensitivity ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23636
更新日期:2017-02-01 00:00:00
abstract::The consequences of poor quality and/or inadequate sleep in children and adolescents have become a major public health concern, and one in which pediatric health care professionals have become increasingly involved. In particular, insufficient and/or fragmented sleep resulting from primary sleep disorders such as obst...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.20981
更新日期:2009-05-01 00:00:00
abstract::A survey of 47 cystic fibrosis referral centers was conducted to study the use of exercise in the management of patients with cystic fibrosis (CF). A questionnaire with 5 brief questions concerning the prescription and application of exercise therapy was sent to the first 47 centers (38.5%) listed in the 1988 CF Found...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950100313
更新日期:1991-01-01 00:00:00
abstract::Our aim was to evaluate long-term effects of exogenous surfactant therapy on pulmonary functional outcome in children born very preterm. We examined 40 children aged 7-12 years who were born before 30 weeks of gestation with an immature surfactant system, and were randomized to one of three treatment groups: human sur...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/(sici)1099-0496(199803)25:3<182::aid-ppul8
更新日期:1998-03-01 00:00:00
abstract::We examined the effects of within-breath changes in compliance (C) upon the accuracy of measurements of compliance and resistance (R) by linear regression analysis and by Mead and Wittenberger's method. These effects were illustrated by a computer model and by lung models with linear and nonlinear pressure/volume rela...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950120304
更新日期:1992-03-01 00:00:00
abstract:BACKGROUND:Asthma is the most common chronic inflammatory disease in childhood and some reports have demonstrated systemic inflammation. The relevance of high-sensitivity assays for C-reactive protein (hs-CRP), which are known to be a sensitive marker of low-grade systemic inflammation, has not been fully studied in ch...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21539
更新日期:2012-03-01 00:00:00
abstract::In adults, the term specific pulmonary renal syndrome describes disorders with pulmonary and glomerular manifestations and includes Wegener's granulomatosis, Goodpasture disease, and systemic lupus erythematosus. Nonspecific pulmonary renal syndrome refers to either pulmonary disease complicating glomerular disease, o...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/(sici)1099-0496(200005)29:5<382::aid-ppul7
更新日期:2000-05-01 00:00:00
abstract::Pediatric Pulmonology continues to publish research and clinical topics related to the entire range of children's respiratory disorders. As we have done annually in recent years, we here summarize some of the past year's publications in our major topic areas, as well as selected literature in these areas from other co...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.23719
更新日期:2017-09-01 00:00:00
abstract:INTRODUCTION:We report an unusual finding of pneumatocele in an infant. CASE REPORT:A previously well four month old presented with worsening respiratory distress over 6 weeks. He had no antecedent signs or symptoms of respiratory infection. Chest radiograph demonstrated a lucent hemithorax concerning for tension pneu...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23257
更新日期:2015-12-01 00:00:00
abstract::Background The prevalence of respiratory-technology dependent children is increasing although for most children the goal is liberation from technology. Liberation from home mechanical ventilation (HMV) and decannulation strategies vary due to the lack of clinical practice standards. The primary objective of this study...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24164
更新日期:2018-11-01 00:00:00
abstract::Since persistent pulmonary hypertension of the newborn (PPHN) often occurs as a life-threatening illness, it would be advantageous to identify the highest-risk infants within the first 24 hours of life so that transfer to centers with extracorporeal membrane oxygenation (ECMO) or high-frequency ventilation can be faci...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950050103
更新日期:1988-01-01 00:00:00
abstract::The jet nebulizer is a common device used for administering aerosol medication in young children. However, compared to a metered dose inhaler-spacer (MDI-spacer), it takes more time and personnel. This study aimed to compare the efficacy of salbutamol aerosol therapy given via these two devices in young wheezing child...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/ppul.20204
更新日期:2005-05-01 00:00:00
abstract::We previously demonstrated that infants with a history of bronchopulmonary dysplasia (BPD) exhibit airflow obstruction and air trapping. The purpose of this study was to assess longitudinal changes in pulmonary function in infants with a history of BPD over the first 3 years of life, and the relationship to somatic gr...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21378
更新日期:2011-04-01 00:00:00
abstract::Pulmonary surfactant, a unique developmentally regulated, phospholipid-rich lipoprotein, is synthesized by the type II epithelial cells (AECII) of the pulmonary alveolus, where it is stored in organelles termed lamellar bodies. The synthesis of pulmonary surfactant is under multifactorial control and is regulated by a...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22975
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:Pressure rise time (PRT), also known as slope time to the peak inflating pressure can be set on some modern neonatal ventilators. On other ventilators, PRT is determined by the set circuit flow. Changing slope time can affect mean airway pressure (MAP), oxygenation, and carbon dioxide elimination. Our aim wa...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.24724
更新日期:2020-05-01 00:00:00
abstract::Standard chemotherapy for tuberculosis (TB) in children uses hepatotoxic drugs. Published data and guidelines on monitoring of liver function during TB treatment are often contradictory and not directly relevant to the pediatric population. We carefully monitored 43 children (age 6.6 years, 0.7-15.1 [median, range]; 4...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1099-0496(199901)27:1<37::aid-ppul8>
更新日期:1999-01-01 00:00:00
abstract::This study evaluates different ventilator strategies during gas (GV) and partial liquid ventilation (PLV) in spontaneously breathing animals. We hypothesized that during PLV, spontaneously breathing animals would self-regulate respiratory parameters by increasing respiratory rate (RR) and minute ventilation (V'E) when...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(sici)1099-0496(199811)26:5<319::aid-ppul3
更新日期:1998-11-01 00:00:00
abstract::Electronic compensation to overcome thermal artifacts during plethysmographic estimations of airway resistance is now used routinely in adults and school-age children, and was shown to be a valuable means of discriminating airway function between preschool children with and without lung disease. A similar system is no...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.20217
更新日期:2005-07-01 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::Nicotine, 1 mg/kg body weight/day, was injected subcutaneously in 3 female rabbits during gestational and lactating periods, and the lungs of the offspring were studied by scanning and transmission electron microscopy (SEM and TEM) on days 5, 10, and 25 postpartum. Three other female rabbits served as controls. The si...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950010606
更新日期:1985-11-01 00:00:00
abstract::A 16-year-old female with cystic fibrosis (CF) presented with an acute respiratory exacerbation during which black flecks were observed in the spontaneously expectorated sputum. The production of this pigmented sputum was subsequently attributed to Exophiala dermatitidis hyphae. Treatment with antibiotics, corticoster...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21187
更新日期:2010-05-01 00:00:00
abstract::Two patients with intractable chronic cough were found to have tonsillar tissue impinging on their epiglottis. In both case, tonsillectomy was curative. The observations in these patients are consistent with a previous report indicating chronic cough from the uvula in contact with the epiglottis with cough cessation f...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20919
更新日期:2008-11-01 00:00:00
abstract::The autoimmune manifestations of primary immunodeficiencies, such as autoimmune lymphoproliferative syndrome (ALPS) and common variable immunodeficiency (CVID), often constitute a great therapeutic challenge and have a significant impact on patients' morbidity and mortality. The most common autoimmune presentations ar...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23757
更新日期:2017-10-01 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:RATIONALE:Whether asthma constitutes a risk factor for coronavirus disease-2019 (COVID-19) is unclear. Here, we aimed to assess whether asthma, the most common chronic disease in children, is associated with higher COVID-19 risk or severity in pediatric populations. METHODS:We performed a systematic literature search ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,meta分析
doi:10.1002/ppul.24909
更新日期:2020-09-01 00:00:00