Abstract:
:The streptozotocin-induced diabetic (STZ-DB) rat model is associated with fetal hyperglycemia, but with low to normal plasma insulin concentration. Because surfactant protein (SP) mRNA content in fetal rat lung is decreased in STZ-DB pregnancy, we investigated the effect of increasing concentrations of glucose on SP gene expression in lung organ cultures. SP mRNA content (SP-A, SP-B, SP-C) was assessed by Northern blot analysis in fetal day 20 lung explants (term = 22 days) cultured for 44 hours in medium containing 10, 25, 50, or 100 mM glucose. Our findings were (1) No consistent alteration in SP-A mRNA content was observed at different glucose concentrations (P > .05); (2) SP-B and SP-C mRNA content were reduced in a dose-dependent manner when glucose concentration was increased from 10 mM to 100 mM. The mRNA content, compared to 10 mM glucose, decreased to 50-60% at 25 mM glucose, to 20-25% at 50 mM glucose, and to lower than 10% at 100 mM glucose (P < .01). These findings indicate that the decrease in SP-B and SP-C mRNA in fetuses of STZ-DB rats may be, in part, due to a direct effect of hyperglycemia, whereas the decrease in SP-A mRNA content in STZ-DB rats appears to be due to other effects of diabetes in pregnancy.
journal_name
Exp Lung Resjournal_title
Experimental lung researchauthors
Rayani HH,Gewolb IH,Floros Jdoi
10.1080/019021499270439subject
Has Abstractpub_date
1999-01-01 00:00:00pages
69-79issue
1eissn
0190-2148issn
1521-0499journal_volume
25pub_type
杂志文章abstract::Both hyperoxia-induced proapoptotic sensitization of alveolar type II cells (TII cells) and high-stretch mechanical ventilation induced pulmonary inflammation are tumor necrosis factor alpha (TNFalpha) mediated. Therefore, binding of free TNFalpha should protect from TNFalpha-mediated acute lung injury and ameliorate ...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902140902887430
更新日期:2009-11-01 00:00:00
abstract::Purpose/Aim of Study: Studies of pulmonary fibrosis (PF) have resulted in DNA damage, inflammatory response, and cellular senescence being widely hypothesized to play a role in the progression of the disease. Utilizing these aforementioned terms, genomics databases were interrogated along with the term, "pulmonary fib...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902148.2017.1318975
更新日期:2017-04-01 00:00:00
abstract::The effects of activated leukocytes on surfactant function and composition were examined to better define the mechanisms by which acute inflammation contributes to respiratory distress syndrome (ARDS). Peripheral blood leukocytes from healthy volunteers were incubated in vitro with surfactant for 4 hours: (1) in the a...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021499270042
更新日期:1999-10-01 00:00:00
abstract::Amiodarone, a cardiac antiarrhythmic agent, has been associated with the development of interstitial pulmonary fibrosis in patients receiving prolonged therapy with the drug. To further assess the toxic effects of amiodarone on lung tissue, Syrian hamsters were given a single intratracheal insufflation of the agent an...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148409087891
更新日期:1984-01-01 00:00:00
abstract::It has been suggested that increased recruitment of phagocytes and subsequent clearance of particles may follow instillation of a leukocyte chemoattractant to lungs containing silica. The present study quantitated serially the silica content in alveolar spaces, in lung tissue and in hilar lymph nodes of mice that rece...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149409064384
更新日期:1994-05-01 00:00:00
abstract::ABSTRACT During fetal development physiological stretching helps drive lung growth and maturation. At birth, the α-subunit of the alveolar epithelial sodium channel (α-ENaC) is a critical factor in helping to facilitate clearance of lung fluid during the perinatal period. The effects of stretch, however, on α-ENaC exp...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148.2014.934410
更新日期:2014-10-01 00:00:00
abstract::In three experiments, we have explored the uptake and transport of colloidal gold (Au) and iron oxide (Fe2O3) by normal and SO2-injured bronchial epithelium. In the first experiment, mice were exposed to a 2-hr aerosol of Au; in the second experiment, mice were exposed to SO2 (250 ppm) for 3 hr, then to Au; and in the...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148009057514
更新日期:1980-03-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148709064301
更新日期:1987-01-01 00:00:00
abstract::The cigarette smoke-induced rat model of chronic bronchitis was used to study the time course of the return of cigarette smoke-induced secretory cell hyperplasia to the normal and the capacity of two non-steroidal anti-inflammatory drugs to speed this recovery. Cigarette smoke alone significantly increased (P less tha...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148609061499
更新日期:1986-01-01 00:00:00
abstract::Acute exposure to NO2 is reported to disrupt tight junctions in lung epithelium. We have studied the effects of chronic NO2 exposure and recovery breathing clean air to tight junctions of distal airway and alveolar epithelium. Syrian Golden hamsters were exposed to NO2 (30 PPM) for 5 or 9 months and a group of those a...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148609064295
更新日期:1986-01-01 00:00:00
abstract::The integrity of the respiratory epithelium is crucial for airway homeostasis. Tobacco smoke exposure and recurrent infections of the airways play a crucial role in the progression and in the decline of the respiratory function in chronic obstructive pulmonary disease (COPD). The aim of this study was to detect differ...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902148.2017.1377784
更新日期:2017-01-01 00:00:00
abstract::Toluene diisocyanate (TDI) is known as one of causes of occupational asthma and hypersensitivity pneumonitis. To investigate the stimulatory effect on bronchial epithelial cells in response to TDI, the authors examined production of cytokines by the bronchial epithelial cell line BEAS-2B and intercellular signal trans...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140600817515
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:Hypoperfusion of the pulmonary vascular bed under the condition of congenital cardiac malformations may lead to progressive pulmonary vascular disease. To improve the mechanistic understanding of this disease, we examined the biochemical and morphological changes of the lung in a relevant animal model and pr...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148.2012.708385
更新日期:2012-09-01 00:00:00
abstract:PURPOSE/AIM:Intravitreal bevacizumab (Avastin) is an irreversible vascular endothelial growth factor (VEGF) inhibitor used to treat severe retinopathy of prematurity (ROP) in extremely low gestational age neonates (ELGANs). ELGANs who are at the highest risk for developing severe ROP often experience brief intermittent...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902148.2020.1866712
更新日期:2020-12-30 00:00:00
abstract::The molecular events involved in both the initiation and development of silicosis are at present poorly defined, although mediators released from macrophages exposed to silica particles are believed to play a role. We have investigated the in vitro production of arachidonic acid (AA) metabolites in adherent bovine alv...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148909069615
更新日期:1989-07-01 00:00:00
abstract::Previously, the authors have shown that tracheal occlusion (TO) partially reverses the onset of congenital diaphragmatic hernia (CDH)-induced pulmonary hypertension (PH) and abnormal pulmonary vascular development whereas release of the occlusion (TR) abolishes these clinical benefits. As a consequence of their mitoge...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021490927079
更新日期:2005-05-01 00:00:00
abstract::The morphology and phagocytic capacities of pulmonary macrophages recovered by lavage from normal rats were studied in vitro after incubation under various culture conditions. Most adherent macrophages (73 +/- 6%) were flat and exhibited ruffled surfaces. Phagocytosis of carbonyl iron beads by pulmonary macrophages wa...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148409087896
更新日期:1984-01-01 00:00:00
abstract::Basement membranes (BM) are specialized extracellular matrices (ECM) which serve as complex interfaces between epithelia, peripheral nerves, or muscle cells and their surrounding tissue microenvironments. Their composition is known to include type IV collagen, laminin, entactin, heparan sulfate proteoglycan (HSPG, per...
journal_title:Experimental lung research
pub_type: 杂志文章,评审
doi:10.3109/01902149709074023
更新日期:1997-03-01 00:00:00
abstract::The structural features of the ovine pleura are described using light, scanning, and transmission electron microscopy. Extensive sampling of the visceral and parietal pleura revealed considerable variation in both surface morphology and pleural interstitial anatomy. Variations of mesothelial surface were encountered a...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148309055016
更新日期:1983-05-01 00:00:00
abstract::Paraquat accumulation into rat lung slices was unaffected by hypoxia (PO2 = 645 mm Hg) but was inhibited by hypoxia. The IC50 (IC50 = partial pressure of O2 resulting in a 50% inhibition of paraquat accumulation) for paraquat accumulation was P02 = 50 mm Hg; significant accumulation could be observed after 1 or 2 hr o...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148009065463
更新日期:1980-08-01 00:00:00
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更新日期:2009-03-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148209069657
更新日期:1982-11-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021401459734
更新日期:2001-01-01 00:00:00
abstract::Distinct barrier lesions and an apical-basal distribution of alveolar edema fluid in either moderate or high elevated pressure edema lungs have been found in previous studies. In the present study, quantitative measurements were obtained by using electron microscopy and morphometry of extravascular lung water and barr...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149509050838
更新日期:1995-09-01 00:00:00
abstract::Mesothelial cells proliferate soon after asbestos deposition in the lung. The present study investigates whether the known mesothelial cell mitogens keratinocyte growth factor (KGF) and hepatocyte growth factor (HGF) are present in the lung and specifically in the pleural cavity during the phase of mesothelial cell gr...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021401753181854
更新日期:2001-10-01 00:00:00
abstract::Volcanic ash was collected from the Moses Lake region of Washington State after the 18 May 1980 eruption of Mt. St. Helens. The ash was tested in a short-term bioassay system using hamsters exposed by intratracheal instillation. One day after exposure the lungs were lavaged and the fluid collected was characterized us...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148109052324
更新日期:1981-11-01 00:00:00
abstract::Acute lung injury (ALI) is often associated with sepsis and is the most common cause of acute respiratory failure. The authors evaluated the role of the heme oxygenase (HO)/carbon monoxide (CO) system on lung injury in a cecal ligation and puncture (CLP)-induced mouse model of ALI. The authors established CLP-induced ...
journal_title:Experimental lung research
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doi:10.3109/01902148.2012.660559
更新日期:2012-05-01 00:00:00
abstract::Lung cancer is the leading cause of death of both men and women across the world. Overexpression and activating mutations of the epidermal growth factor receptor-1 (EGFR1) are frequently observed and associated with poor prognosis. To inhibit the function of EGFR1, multiple antibodies and small-molecule tyrosine kinas...
journal_title:Experimental lung research
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doi:10.3109/01902148.2013.831960
更新日期:2013-11-01 00:00:00
abstract::CTP:cholinephosphate cytidylyltransferase (CT) is a key enzyme required for surfactant phosphatidylcholine synthesis, and its activity is regulated by lung lipids. This study evaluated the effect of epidermal growth factor (EGF) on the phospholipid content and the expression of CT in the lung following direct in vivo ...
journal_title:Experimental lung research
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doi:10.3109/01902149409064369
更新日期:1994-01-01 00:00:00
abstract::Long-term, low-dose macrolide therapy has been proven to improve survival in patients with diffuse panbronchiolitis and cystic fibrosis, although the mechanisms by which it does so remain unknown. To elucidate the molecular mechanisms of the anti-inflammatory effects of macrolides, the authors examined the effects of ...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140802093238
更新日期:2008-08-01 00:00:00