Abstract:
:We investigated the relationship between annual change in pulmonary function and changes in respiratory symptoms among male grain elevator workers who participated in a health surveillance program mandated by Labour Canada. The surveillance was conducted every 3 yr starting from the period 1978 to 1981. The 1,211 workers who participated in the second (1981 to 1984) and fifth (1990 to 1993) surveillance were included in the analysis and the mean duration of the follow-up was 8.6 yr. In the analysis we also included the pulmonary function measurements that were available for some subjects at the third and fourth surveillance. The subjects who reported persistent wheeze had the largest mean annual rate change in FEV1 (-44.4 ml/yr) and FVC (-55.3 ml/yr). When adjusted for age, height, weight change, smoking, baseline lung function, location of grain elevators, and duration of employment, the subjects with persistent wheeze had an annual rate change of -28.3 ml/yr (SE 10.5; p = 0.007) in FEV1 and -37.3 ml/yr (SE = 12.3; p = 0.003) in FVC in comparison to subjects without any respiratory symptoms. The subjects who reported new onset of wheeze had significantly greater annual rate changes only in FEV1 (-13.7 ml/yr; SE 6.0; p = 0.02) in comparison to asymptomatic subjects' symptoms. Persistent wheeze is an important predictor of decline in lung function among grain elevator workers and should not be ignored in surveillance programs or clinical evaluations.
journal_name
Am J Respir Crit Care Medauthors
Senthilselvan A,Pahwa P,Wang P,McDuffie HH,Dosman JAdoi
10.1164/ajrccm.153.2.8564120subject
Has Abstractpub_date
1996-02-01 00:00:00pages
701-5issue
2eissn
1073-449Xissn
1535-4970journal_volume
153pub_type
杂志文章abstract::Isoniazid taken daily for 12 mo and isoniazid and rifampin taken daily for 4 mo are both recommended options for patients with radiographic evidence of previous tuberculosis and positive tuberculin skin tests who have not had prior treatment. We compared the completion rates, number of adverse effects, and cost effect...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.162.5.2003028
更新日期:2000-11-01 00:00:00
abstract::Nanoparticle-based drug delivery systems have considerable potential for treatment of tuberculosis (TB). The important technological advantages of nanoparticles used as drug carriers are high stability, high carrier capacity, feasibility of incorporation of both hydrophilic and hydrophobic substances, and feasibility ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,评审
doi:10.1164/rccm.200504-613PP
更新日期:2005-12-15 00:00:00
abstract::Sarcoidosis is a systemic granulomatous disease of unknown etiology that primarily affects the lungs. The etiology remains unclear; however, environmental, genetic, ethnic, and familial factors probably modify expression of the disease. As an example, African Americans are at greater risk of mortality and morbidity th...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,评审
doi:10.1164/rccm.200308-1073WS
更新日期:2004-09-01 00:00:00
abstract:RATIONALE:Venous thromboembolism is difficult to diagnose in critically ill patients and may increase morbidity and mortality. OBJECTIVES:To evaluate the cost-effectiveness of strategies to reduce morbidity from venous thromboembolism in critically ill patients. METHODS:A Markov decision analytic model to compare wee...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201106-1059OC
更新日期:2011-12-01 00:00:00
abstract::To determine the status of activation of lymphocytes and the role of cytokines on the inflammatory response of the bronchial mucosa in toluene diisocyanate (TDI) asthma, we performed a quantitative analysis of bronchial biopsies obtained from 15 subjects with TDI-induced asthma and seven normal control subjects. Marke...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.151.3.7533600
更新日期:1995-03-01 00:00:00
abstract:UNLABELLED:Although local tissue activation of the endothelin (ET) system contributes to the development of pulmonary hypertension, the impact of isolated chronic plasma hyperendothelinemia on the pulmonary circulation is unknown. METHODS:Mini-osmotic pumps were implanted in rats to deliver ET-1 during 7 or 28 days. A...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200403-340OC
更新日期:2005-03-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
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doi:10.1164/rccm.201001-0005OC
更新日期:2010-07-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-06-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
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更新日期:2003-01-15 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1164/ajrccm.165.6.2104073
更新日期:2002-03-15 00:00:00
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pub_type: 杂志文章
doi:10.1164/ajrccm.149.6.8004310
更新日期:1994-06-01 00:00:00
abstract::To study whether the individual inflammatory response to ozone was reproducible, dose-dependent, and time-dependent, we performed two exposures to 250 ppb ozone, one to 125 ppb and one to filtered air, each for 3 h of intermittent exercise and separated by at least 1 wk. Twenty-one healthy and 15 asthmatic subjects pa...
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pub_type: 杂志文章
doi:10.1164/ajrccm.159.3.9806098
更新日期:1999-03-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.156.2.9509017
更新日期:1997-08-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,评审
doi:10.1164/rccm.201604-0801CI
更新日期:2016-08-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.152.3.7663790
更新日期:1995-09-01 00:00:00
abstract::Endothelins (ET-1, ET-2, ET-3) are potent bronchoconstrictors and growth-promoting mediators. They are released from various cells such as endothelial and epithelial cells. In the airways, ETs are released under basal and stimulated conditions. In patients with status asthmaticus and other pulmonary disorders, the exp...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.155.6.9196090
更新日期:1997-06-01 00:00:00
abstract:BACKGROUND:Measurements of upper airway size and shape are important in investigating the pathophysiology of obstructive sleep apnea (OSA) and in devising, applying, and determining the effectiveness of treatment modalities. We describe an endoscopic optical technique (anatomic optical coherence tomography, aOCT) that ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200507-1148OC
更新日期:2006-01-15 00:00:00
abstract:RATIONALE:HIV-1-induced interstitial pneumonitis (IP) is a serious complication of HIV-1 infection, characterized by inflammation and cellular infiltration in lungs, often leading to respiratory failure and death. The barrier function of the pulmonary endothelium is caused in part by tight junction (TJ) proteins, such ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
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更新日期:2014-07-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,评审
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更新日期:1998-11-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.153.2.8564090
更新日期:1996-02-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201504-0760OC
更新日期:2016-01-15 00:00:00
abstract::The aim of the study was to determine risk factors for severe community-acquired pneumonia (CAP) as well as to compare microbial patterns of severe CAP to a previous study from our respiratory intensive care unit (ICU) originating from 1984 to 1987. Patients admitted to the ICU according to clinical judgment were defi...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
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更新日期:1999-09-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200901-0117OC
更新日期:2009-11-15 00:00:00
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pub_type: 杂志文章
doi:10.1164/rccm.200906-0896OC
更新日期:2010-02-15 00:00:00
abstract::We investigated the source of intravascular fat in systemic organs (brain, heart, and kidney) after massive pulmonary fat embolism during cemented arthroplasty. We used a bilateral cemented arthroplasty (BCA) in anesthetized mongrel dogs that simulates a cemented total-hip replacement procedure. We hypothesized that d...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.150.5.7952570
更新日期:1994-11-01 00:00:00
abstract::Rationale: Lumacaftor-ivacaftor is a CFTR (cystic fibrosis transmembrane conductance regulator) modulator combination recently approved for patients with cystic fibrosis (CF) homozygous for the Phe508del mutation.Objectives: To evaluate the safety and effectiveness of lumacaftor-ivacaftor in adolescents (≥12 yr) and a...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201906-1227OC
更新日期:2020-01-15 00:00:00
abstract:RATIONALE:Previous studies have demonstrated a high prevalence of sleep apnea (SA) in patients with chronic heart failure (HF), which is associated with higher rates of morbidity, mortality, and health care use. OBJECTIVES:To investigate the reported incidence, treatment, outcomes, and economic cost of SA in new-onset...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201003-0406OC
更新日期:2011-02-15 00:00:00
abstract:RATIONALE:Epithelial-mesenchymal transition (EMT) plays a key role in the development of chronic obstructive pulmonary disease (COPD) and lung cancer. OBJECTIVES:There are five major EMT regulatory genes (Snai1, Slug, Zeb1, Zeb2, and Twist1) involved in EMT. We hypothesized that germline variants in these genes may in...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1164/rccm.201307-1355OC
更新日期:2014-01-15 00:00:00
abstract::To determine whether the cytokine interleukin (IL)-1 beta directly affects airway smooth muscle functions and, if so, what the mechanism of action is, we studied canine isolated bronchial segments under isometric conditions in vitro. Incubation of tissues with human recombinant IL-1 beta (10 ng/ml) for 150 min decreas...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.149.1.8111570
更新日期:1994-01-01 00:00:00