Abstract:
:The effects of low-level ozone exposure (0.08 ppm) on pulmonary function in healthy young adults are well known; however, much less is known about the inflammatory and immunomodulatory effects of low-level ozone in the airways. Techniques such as induced sputum and flow cytometry make it possible to examine airways inflammatory responses and changes in immune cell surface phenotypes following low-level ozone exposure. The purpose of this study was to determine if exposure to 0.08 parts per million ozone for 6.6 h induces inflammation and modifies immune cell surface phenotypes in the airways of healthy adult subjects. Fifteen normal volunteers underwent an established 0.08 part per million ozone exposure protocol to characterize the effect of ozone on airways inflammation and immune cell surface phenotypes. Induced sputum and flow cytometry were used to assess these endpoints 24 h before and 18 h after exposure. The results showed that exposure to 0.08 ppm ozone for 6.6 h induced increased airway neutrophils, monocytes, and dendritic cells and modified the expression of CD14, HLA-DR, CD80, and CD86 on monocytes 18 h following exposure. Exposure to 0.08 parts per million ozone is associated with increased airways inflammation and promotion of antigen-presenting cell phenotypes 18 hours following exposure. These findings need to be replicated in a similar experiment that includes a control air exposure.
journal_name
Inhal Toxicoljournal_title
Inhalation toxicologyauthors
Alexis NE,Lay JC,Hazucha M,Harris B,Hernandez ML,Bromberg PA,Kehrl H,Diaz-Sanchez D,Kim C,Devlin RB,Peden DBdoi
10.3109/08958371003596587subject
Has Abstractpub_date
2010-06-01 00:00:00pages
593-600issue
7eissn
0895-8378issn
1091-7691journal_volume
22pub_type
杂志文章abstract:CONTEXT:Sulfur mustard exposure, as the most widely used chemical weapon, can lead to acute and long-term pulmonary complications via various pathways, such as triggering an imbalance between the oxidant and antioxidant system. Currently, there is no validated antidote, chemoprophylaxis and curative modality for pulmon...
journal_title:Inhalation toxicology
pub_type: 杂志文章,评审
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abstract::Tire and road wear particles (TRWP) are a component of ambient particulate matter (PM) produced from the interaction of tires with the roadway. Inhalation of PM has been associated with cardiopulmonary morbidities and mortalities thought to stem from pulmonary inflammation. To determine whether TRWP may contribute to ...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2012.730071
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abstract::NASA is planning to build a habitat on the Moon and use the Moon as a stepping stone to Mars. JSC-1, an Arizona volcanic ash that has mineral properties similar to those of lunar soil, is used to produce lunar environments for instrument and equipment testing. NASA is concerned about potential health risks to workers ...
journal_title:Inhalation toxicology
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doi:10.1080/08958370701821219
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abstract::Mexico City children are chronically exposed to significant concentrations of air pollutants and exhibit chronic respiratory-tract inflammation. Epidemiological, controlled human exposures, laboratory-based animal models, and in vitro/in vivo studies have shown that inflammatory, endothelial dysfunction, and endotheli...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.1080/08958370701864797
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abstract::A method for inhalative exposure of minipigs to aerosols and gases has been developed. Minipigs are exposed via mask inhalation to the test substance using a computer-controlled exposure system that permits simultaneous exposure of groups of four animals in parallel to different controlled dose levels. We studied inha...
journal_title:Inhalation toxicology
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doi:10.1080/08958370150502476
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abstract:OBJECTIVE:Worldwide popularity of waterpipe tobacco smoking has increased, including in pregnant women. This study investigates the effect of prenatal waterpipe tobacco smoke (WTS) exposure on airway inflammation in a murine model of asthma of adult offspring mice. MATERIALS AND METHODS:Pregnant BALB/c mice were expos...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.1080/08958378.2017.1385113
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abstract::Measurement strategies as well as results from measurements at workplaces are presented. Measurements were performed in research laboratories as well as by companies producing small amounts of nanostructured materials. The work was done in the frame of a BAuA (Bundesanstalt für Arbeitsschutz und Arbeitsmedizin) resear...
journal_title:Inhalation toxicology
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abstract::A number of Norwegian soldiers have reported health problems after live-fire training using the HK416 rifle. The objective of this study was to characterize gaseous and particulate emissions from three different types of ammunition, and record the health effects after exposure to emissions from live-firing. Fifty-five...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2014.970783
更新日期:2014-12-01 00:00:00
abstract::Hypersensitivity pneumonitis (HP) represents the immunologically mediated lung disease induced by repeated inhalations of a wide variety of certain finely dispersed organic antigens. In susceptible subjects, these inhalations provoke a hypersensitivity reaction characterized by intense inflammation of the terminal bro...
journal_title:Inhalation toxicology
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abstract::Elastolysis, collagenolysis and gelatinolysis are essential in the pathogenesis of tobacco smoke-induced emphysema; however, these activities have been scantily studied in emphysema secondary to woodsmoke. The aim of this study was to analyze elastolysis, collagenolysis and gelatinolysis, MMP-1, MMP-2, and MMP-9 expre...
journal_title:Inhalation toxicology
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abstract::The molecular bases for variability in air pollutant-induced pulmonary injury due to underlying cardiovascular (CVD) and/or metabolic diseases are unknown. We hypothesized that healthy and genetic CVD-prone rat models will exhibit exacerbated response to acute ozone exposure dependent on the type and severity of disea...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2014.954169
更新日期:2015-01-01 00:00:00
abstract::Acute exposure to ambient fine particulate matter (PM2.5) is tied to cardiovascular morbidity and mortality, especially among those with prior cardiac injury. The mechanisms and pathophysiological events precipitating these outcomes remain poorly understood but may involve inflammation, oxidative stress, arrhythmia an...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2014.995387
更新日期:2015-02-01 00:00:00
abstract::It is important to conduct a risk assessment that includes hazard assessment and exposure assessment for the safe production and handling of newly developed nanomaterials. We conducted an inhalation study of a multi-wall carbon nanotube (MWCNT) as a hazard assessment. Male Wistar rats were exposed to well-dispersed MW...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2011.608096
更新日期:2011-11-01 00:00:00
abstract::The authors have previously demonstrated that wildfire-derived coarse or fine particulate matter (PM) intratracheally instilled into lungs of mice induce a strong inflammatory response. In the current study, the authors demonstrate that wildfire PM simultaneously cause major increases in oxidative stress in the mouse ...
journal_title:Inhalation toxicology
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doi:10.3109/08958370903571849
更新日期:2010-06-01 00:00:00
abstract::This article addresses results from a single 4-h and repeated 1- and 4-wk inhalation exposure studies in Wistar rats with vapor and/or aerosol atmospheres of 4-ethoxyaniline (p-phenetidine). Groups of 10 rats/sex were exposed nose-only to mean analytical concentrations of 11.1, 86.2, and 882.6 mg p-phenetidine/m(3) us...
journal_title:Inhalation toxicology
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doi:10.1080/089583701753210371
更新日期:2001-11-01 00:00:00
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journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.1080/08958378.2017.1342719
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Nanoparticles are being rapidly assimilated into numerous research fields and consumer products. A concurrent increase in human exposure to such materials is expected. Magnetic nanoparticles (MNPs) possess unique and beneficial features, increasing their functionality and integrative potential. However, MNP ...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2011.592869
更新日期:2011-08-01 00:00:00
abstract::This 3-mo inhalation study investigated the biological effects of a special-purpose glass microfiber (E-glass microfiber), the stone wool fiber MMVF21, and a new high-temperature application fiber (calcium-magnesium-silicate fiber, CMS) in Wistar rats. Rats were exposed 6 h/day, 5 days/wk for 3 mo to fiber aerosol con...
journal_title:Inhalation toxicology
pub_type: 杂志文章
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更新日期:2003-10-01 00:00:00
abstract::Recent studies have shown that air pollution is a risk factor for hospitalization for pneumonia. However, there is limited evidence to suggest what subpopulations are at greater risk from air pollution. This study was undertaken to examine the modifying effect of specific secondary diagnosis (including hypertension, d...
journal_title:Inhalation toxicology
pub_type: 杂志文章
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更新日期:2009-11-01 00:00:00
abstract::The purpose of this exploratory study within the integrated subchronic inhalation exposure study (Lippmann et al., 2005) was to identify genes in heart and lung tissue that changed in expression level as a result of subchronic exposure to concentrated ambient particles (CAPs). Identification of CAPs exposure-related c...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.1080/08958370590912851
更新日期:2005-04-01 00:00:00
abstract::Chronic exposure to chlorine gas has been shown to cause occupational asthma. Acute inhalation of chlorine is known to cause airway inflammation and induce airway nitric oxide formation. Exhaled nitric oxide may therefore be a marker of airway damage after chlorine gas exposure. After accidental chlorine gas exposure ...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.1080/08958370701432157
更新日期:2007-08-01 00:00:00
abstract::Multi-walled carbon nanotubes (MWCNT) have been reported to cause lung pathologies in multiple studies. However, the mechanism responsible for the bioactivity has not been determined. This study used nine different well-characterized MWCNT and examined the outcomes in vitro and in vivo. MWCNT, from a variety of source...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2012.745633
更新日期:2012-12-01 00:00:00
abstract::The aim of this study was to investigate the potential cytotoxicity of solid lipid nanoparticles (SLN) loaded with sildenafil. The SLNs were tested as a new drug delivery system (DDS) for the inhalable treatment of pulmonary hypertension in human lungs. Solubility of sildenafil in SLN lipid matrix (30:70 phospholipid:...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2013.810315
更新日期:2013-08-01 00:00:00
abstract::Rats were exposed to a new graphite whisker for 4 wk by inhalation. Mass and fiber concentrations were 8.3 +/- 2.2 mg/m3 and 151.7 +/- 78.8 fibers (F)/ml, respectively, and mass median aerodynamic diameter was 3.0 micro m. Geometric mean sizes of the original whiskers were 0.86 micro m diameter and 6.8 micro m length....
journal_title:Inhalation toxicology
pub_type: 杂志文章
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更新日期:2003-01-01 00:00:00
abstract::Inhalation exposure systems are necessary tools for determining the dose-response relationship of inhaled toxicants under a variety of exposure conditions. The objective of this project was to develop an automated computer controlled system to expose small laboratory animals to precise concentrations of airborne multi...
journal_title:Inhalation toxicology
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更新日期:2009-10-01 00:00:00
abstract::We briefly review the evidence that the carcinogenic risk posed by inhaled fibers depends principally on the lung burden of long fibers. We use a deposition clearance model to generate time-dependent lung burdens in rats of a dozen long fibers for various exposure concentrations. Together with a previously estimated p...
journal_title:Inhalation toxicology
pub_type: 杂志文章
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更新日期:2001-09-01 00:00:00
abstract::In 1999 Berry published a model for mesothelioma incidence following fiber exposure. He concluded, that the influence of the solubility of fibers on the mesothelioma rate is 17 times higher in humans than in rats. This conclusion may be helpful for evaluating the carcinogenic risk from man-made vitreous fibers, but it...
journal_title:Inhalation toxicology
pub_type: 杂志文章,评审
doi:10.1080/08958370490505016
更新日期:2004-10-01 00:00:00
abstract::Antisense oligonucleotides (ASOs) bind and facilitate degradation of RNA and inhibit protein expression in pathways not easily targeted with small molecules or antibodies. Interleukin (IL)-4 and IL-13 potentiate signaling through the shared IL-4 receptor-α (IL-4Rα) subunit of their receptors. ASO targeting of IL-4Rα m...
journal_title:Inhalation toxicology
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doi:10.3109/08958378.2014.907587
更新日期:2014-07-01 00:00:00
abstract::Results from epidemiology studies have shown statistical associations between ambient air particulate matter (PM) concentrations and mortality/morbidity, particularly among susceptible subpopulations. Although the epidemiology of ambient air PM is compelling, there remains considerable uncertainty in PM risk assessmen...
journal_title:Inhalation toxicology
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doi:10.1080/08958378.2000.11463230
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:This research describes a novel "minitower" dry powder delivery system for nose-only delivery of dry powder aerosols to spontaneously breathing rats. METHODS:The minitower system forces pressurized air through pre-filled capsules to deliver aerosolized drug to four nose ports; three of which house spontaneousl...
journal_title:Inhalation toxicology
pub_type: 杂志文章
doi:10.3109/08958378.2015.1089959
更新日期:2015-01-01 00:00:00