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 size and number of neuroepithelial bodies (NEB) as estimated by SEM were larger in the experimental group than in the control group, especially on days 5 and 25. Moreover, the NEB in the nicotine-exposed groups showed loss of normal boundaries and derangement of cells and granules by TEM. Neural components also became prominent. These findings suggest that chronic maternal exposure to nicotine may directly, or, through the neural route, indirectly induce hyperplasia and dysplasia of the NEB in the offspring of rabbits. Because NEB are suspected to regulate regional bronchial and vascular smooth muscle cells, such alterations may be similar to respiratory functional impairments found in infants of mothers who smoke.
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Chen MF,Diotallevi MJ,Kimizuka G,King M,Wang NSdoi
10.1002/ppul.1950010606subject
Has Abstractpub_date
1985-11-01 00:00:00pages
303-8issue
6eissn
8755-6863issn
1099-0496journal_volume
1pub_type
杂志文章abstract::A 13-year-old boy presented with a history of respiratory infection that had progressed for 3 months. A chest X-ray showed pathological findings that suggested endothoracic fascia compromise (Skarby sign). The thorax computerized axial tomography scan revealed multiple opacities in the fascia. A biopsy was performed, ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20379
更新日期:2006-05-01 00:00:00
abstract::In contrast to its effect on airway smooth muscle in the adult, in vitro studies have shown that caffeine significantly increases active tension in airway smooth muscle in the neonatal lamb. To determine if caffeine has a physiological effect on airway function during early development, we studied the effect of caffei...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950120106
更新日期:1992-01-01 00:00:00
abstract::Inhaled corticosteroids are commonly used in cystic fibrosis (CF), but there are few studies evaluating their safety in young children. We, therefore, prospectively administered beclomethasone diproprionate (BDP) to 12 clinically stable young children with CF to examine the safety of this therapy with respect to adren...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1122
更新日期:2001-10-01 00:00:00
abstract::Nitric oxide (NO) that is produced within the airways can be measured in the exhaled air. Concentrations of exhaled NO (FENO) are decreased in cystic fibrosis (CF) and, in cross sectional studies, have been shown to be even lower in patients with more advanced pulmonary disease. This may result from retention and meta...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/ppul.20088
更新日期:2004-11-01 00:00:00
abstract:INTRODUCTION:Chest impedance (CI) is the current standard for cardio-respiratory monitoring in preterm infants but fails to provide direct and quantitative information on diaphragmatic activity. Transcutaneous electromyography (dEMG) is able to measure diaphragmatic activity, but its feasibility and repeatability to mo...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23116
更新日期:2015-09-01 00:00:00
abstract::The aim of our study was to determine the effects of pulmonary vascular engorgement on airways and pulmonary tissues in juvenile animals before and after methacholine (Mch)-induced changes in lung function. Five anesthetized, paralyzed, and thoracotomized piglets were studied before and during pulmonary vascular engor...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(sici)1099-0496(199801)25:1<45::aid-ppul5>
更新日期:1998-01-01 00:00:00
abstract::Over the past year, a series of papers have reviewed the literature concerning assessment and interpretation of lung function in infants and young children with chronic lung disease of infancy. This manuscript, which represents the final paper in that series, summarizes the findings to date and highlights key areas fo...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.20520
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:Variation of lung function is considered to be a hallmark of asthma. Although guidelines recommend measuring it as a diagnostic tool for asthma, the usefulness of this approach has not been studied in children. AIM:To assess the usefulness of home spirometry in children with nonspecific lower respiratory tr...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21183
更新日期:2010-04-01 00:00:00
abstract::Impaired respiratory function has been found frequently in ex-premature children, but it is unclear which specific factors influence this impairment the most. The aim of this study was to determine the importance of the contributions of birth weight, gestational age, neonatal respiratory disease, and its treatment on ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/1099-0496(200007)30:1<32::aid-ppul6>3.0.co
更新日期:2000-07-01 00:00:00
abstract::Dysfunctional swallowing is an uncommon, but important cause of bronchiectasis. We describe a child with a brainstem tumor, who developed bronchiectasis caused by chronic aspiration secondary to a dysfunctional swallow. The case highlights the importance of thorough and repeated evaluation before a diagnosis of idiopa...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21152
更新日期:2010-02-01 00:00:00
abstract::The incidence of necrotizing pneumonia and empyema complicated by bronchopleural fistula is rising. We describe the case of a 2-year-old boy who presented with empyema thoracis and necrotizing pneumonia who developed a bronchopleural fistula. At initial thoracotomy for decortication, necrotic lung was found and resect...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22649
更新日期:2013-06-01 00:00:00
abstract::Our aim was to determine whether antenatal corticosteroids improve perinatal adaptation of the pulmonary circulation in lambs with lung hypoplasia (LH). LH was induced in 12 ovine fetuses between 105 and 140 days gestation (term approximately 147 days); in 6 of these the ewe was given a single dose of betamethasone (1...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20453
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:To validate the bronchiolitis score of Sant Joan de Déu (BROSJOD) and to examine the previously defined scoring cutoff. PATIENTS AND METHODS:Prospective, observational study. BROSJOD scoring was done by two independent physicians (at admission, 24 and 48 hr). Internal consistency of the score was assessed us...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23546
更新日期:2017-04-01 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::Spontaneous hemopneumothorax (SHP) is a rare potentially life-threatening condition that occurs in predominantly young adolescents. The resultant massive hemorrhage leading to hypovolemic shock can be a surgical emergency. It constitutes 1-12% of all spontaneous pneumothoraces and presents with two cardinal features, ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22712
更新日期:2014-01-01 00:00:00
abstract::We reviewed the literature on the effects of high flow nasal cannula (HFNC) and heated, humidified, high-flow, nasal cannula (HHHFNC) treatment in preterm infants. We found nine studies, but only two were randomized controlled trials. These studies show that: HFNC application is associated to the delivery of continuou...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.21051
更新日期:2009-07-01 00:00:00
abstract::Asthma has been found related to a higher risk of psychological problems. Inconsistent results have been reported with respect to the quality of life of children with asthma. So there may be a complex relationship between asthma severity, quality of life, and psychological factors. The aim of this study was to examine...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20509
更新日期:2007-01-01 00:00:00
abstract::A thorough understanding of the early natural history of cystic fibrosis (CF) lung disease is critical for the development of effective interventions in the youngest patients. We assessed the evolution of pulmonary infection, inflammation, and clinical course among 40 infants over a 2-year period through annual bronch...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1144
更新日期:2001-11-01 00:00:00
abstract::A 14-year-old Korean boy was admitted with cough, hemoptysis, and fever. A chest X-ray showed a solitary pulmonary mass and pneumonitis. Bronchial biopsy by fiberoptic bronchoscopy revealed a poorly differentiated small cell carcinoma. All of the staging information indicated that the patient had limited disease. Duri...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(sici)1099-0496(200004)29:4<317::aid-ppul1
更新日期:2000-04-01 00:00:00
abstract::The raised lung volume technique is increasingly used to measure forced expiratory maneuvers in infants. However, there is no consensus regarding the optimal airway inflation pressure (P(inf)) required for such maneuvers, or the influence of small changes in P(inf) within and between infants. The aim of this study was...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/ppul.10060
更新日期:2002-02-01 00:00:00
abstract:INTRODUCTION:Interpregnancy interval (IPI) is defined as the period between a live birth and the conception of a subsequent fetus. Both short (IPI < 6 months) and long IPI (IPI > 60 months) have been shown to increase the risk for adverse perinatal outcomes, some of which, are known risk factors for obstructive sleep a...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.25240
更新日期:2020-12-31 00:00:00
abstract::Phrenic nerve paralysis is a condition typically occurring after invasive procedures in the chest and neck. Here we describe a case of transient unilateral diaphragmatic paralysis in a child with status asthmaticus complicated by complete right lung atelectasis. Common causes of this disorder and possible implications...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20040
更新日期:2004-09-01 00:00:00
abstract::It has been suggested that cystic fibrosis (CF) patients harboring multiresistant (MR) Pseudomonas aeruginosa (PA) should be seen in separate clinics. The aim of this study was to test the feasibility of this by longitudinally studying the consistency of isolates of MRPA in individuals. We analyzed all respiratory tra...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.10262
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVE:To develop and validate a questionnaire to assess asthma control in children (CAN). DESIGN:Two versions of the CAN (for carers and children) were developed. Both versions were validated in an observational, prospective, multicenter study performed in 38 hospital outpatient clinics throughout Spain. Four hund...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20929
更新日期:2009-01-01 00:00:00
abstract::To determine whether doses of ipratropium bromide (IB) greater than those usually administered by aerosol (75-250 micrograms) give a greater degree of protection from exercise-induced asthma (EIA) in children, 12 patients with chronic asthma, ages 7-13 yr, were challenged with methacholine and exercise after inhalatio...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950060205
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Socioeconomic status (SES) is a strong predictor of outcomes in cystic fibrosis (CF); however, there are no published studies evaluating this relationship in Canadians with CF. The objective of this study was to assess the effect of SES on annual hospitalization rates in a large cohort of pediatric and adult...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21368
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVE:The prevalence of obstructive sleep apnea (OSA) is higher in children with poorly controlled asthma. We aimed to determine the validity of the Pediatric Sleep Questionnaire (PSQ) to screen for OSA in children with asthma. METHODS:This retrospective review encompassed sleep studies and medical records of asth...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23568
更新日期:2017-03-01 00:00:00
abstract:OBJECTIVES:Respiratory syncytial virus (RSV) is a leading cause of lower respiratory tract infections worldwide, causing disproportionate morbidity and mortality in infants and children. Infants with stronger Th1 responses have less severe disease, yet little is known about the infant T-cell response within the air spa...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23911
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVES:Swallowing disorders which lead to aspiration are common in premature infants with a postmenstrual age (PMA) of >36 weeks. Aspiration is often silent and the unique symptom is desaturation during feeding. The aim of this study was 1) to determine the number of prematures with desaturations during feeding due...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23946
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVE:To assess whether children with sleep-disordered breathing (SDB) symptom severity above a certain level, measured by a validated questionnaire, improve after adenotonsillectomy (AT) compared to no intervention. METHODS:Children with snoring and tonsillar hypertrophy (4 to 10-years old), who were candidates f...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ppul.24427
更新日期:2019-10-01 00:00:00