Toxicological investigations on the respirable fraction of silicon carbide grain products by the in vitro vector model.

abstract：:We used inert melamin particles that are very well defined in size (diameters: 0.5, 1.9, 6.8 microm) to study the effects of ambient particles of <10 microm (PM(10)) on phagocytosis. Dose-response functions were found between the amount of added melamin particle mass and the toxicity. Fine particles (0.5 microm) were ...

journal_title：Inhalation toxicology

authors： Monn C,Fendt R,Koller T

更新日期：2002-04-01 00:00:00

abstract：:This article addresses results of two 13-wk inhalation toxicity studies in Wistar rats with aerosolized 1,6-hexamethylene diisocyanate (HDI) homopolymers using either the isocyanurate (HDI-IC) type or biuret (HDI-BT) type. Groups of 10 rats/sex/level were exposed nose-only to breathing zone concentrations of 0.5, 3.3,...

journal_title：Inhalation toxicology

authors： Pauluhn J,Mohr U

更新日期：2001-06-01 00:00:00

abstract：:Laboratory studies involving intentional and highly controlled exposures to air pollutants among groups of human volunteers provide valuable information related to the potential health effects of pollutants regulated under the US Clean Air Act. These controlled human exposure studies often provide biological plausibil...

journal_title：Inhalation toxicology

authors： Johns DO,Linn WS

更新日期：2011-01-01 00:00:00

abstract：:Recurrent events, such as repeated hospital admissions for the same health outcome, occur frequently in environmental health studies. In this study, we conducted an analysis of data on repeated respiratory hospitalizations among the elderly in Vancouver, Canada, for the period of June 1, 1995, to March 31, 1999, using...

journal_title：Inhalation toxicology

authors： Fung KY,Khan S,Krewski D,Chen Y

更新日期：2006-12-01 00:00:00

abstract：:Epidemiological studies have reported increased morbidity in human populations following inhalation of elevated levels of urban particulate matter. These responses are especially prevalent in populations with chronic obstructive pulmonary diseases, including chronic bronchitis. Toxicological studies have reported alte...

journal_title：Inhalation toxicology

authors： Clarke RW,Catalano PJ,Koutrakis P,Murthy GG,Sioutas C,Paulauskis J,Coull B,Ferguson S,Godleski JJ

更新日期：1999-08-01 00:00:00

abstract：:Washed human erythrocytes were incubated with titanium dioxide (TiO2) particles at 37 degrees C for 1 hr and hemolysis was determined by the percentage of hemoglobin released (optical density at 540 nm; OD540) from the cells. Effects of TiO2 on OD540 were corrected and dose-response curves were analyzed by the Hill pl...

journal_title：Inhalation toxicology

authors： Aisaka Y,Kawaguchi R,Watanabe S,Ikeda M,Igisu H

更新日期：2008-07-01 00:00:00

abstract：:Epidemiology studies of populations living in areas with good air quality report correlations between levels of ambient particulate matter (PM) and mortality rates. These associations occur at low PM concentrations that are below current air quality standards. Can such concentrations cause mortality, given the toxicit...

journal_title：Inhalation toxicology

authors： Valberg PA

更新日期：2004-01-01 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

authors： Dreher KL

更新日期：2000-01-01 00:00:00

abstract：:This study investigated the effects of particulate matter (PM) with aerodynamic diameter 0.02-1 microm (noted as PM1) inhalation during exercise on conduit artery and microvascular function. Inhalation of internal combustion-derived PM is associated with cardiovascular mortality and morbidity. Direct action of PM on t...

journal_title：Inhalation toxicology

authors： Rundell KW,Hoffman JR,Caviston R,Bulbulian R,Hollenbach AM

更新日期：2007-02-01 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

authors： Fey RA,Templin MV,McDonald JD,Yu RZ,Hutt JA,Gigliotti AP,Henry SP,Reed MD

更新日期：2014-07-01 00:00:00

abstract：:Oxygen radical generation due to surface radicals, inflammation, and iron release has been suggested as the mechanism of adverse effects of quartz, such as emphysema, fibrosis, and carcinogenic effects. Therefore, we measured iron release, acellular generation of hydroxyl radicals, and oxidative DNA damage and cytotox...

journal_title：Inhalation toxicology

authors： van Maanen JM,Borm PJ,Knaapen A,van Herwijnen M,Schilderman PA,Smith KR,Aust AE,Tomatis M,Fubini B

更新日期：1999-12-01 00:00:00

abstract：:Minimally invasive approaches to detect/predict target organ toxicity have significant practical applications in occupational toxicology. The potential application of peripheral blood transcriptomics as a practical approach to study the mechanisms of silica-induced pulmonary toxicity was investigated. Rats were expose...

journal_title：Inhalation toxicology

authors： Sellamuthu R,Umbright C,Roberts JR,Chapman R,Young SH,Richardson D,Cumpston J,McKinney W,Chen BT,Frazer D,Li S,Kashon M,Joseph P

更新日期：2012-08-01 00:00:00

abstract：:This study aimed to determine the association between home and vehicle exposure to environmental tobacco smoke (ETS), and chronic bronchitis based on data from 64,961 non-smokers aged 12 years and older who participated in the 2005 Canadian Community Health Survey (CCHS). The proportion of respondents who reported ETS...

journal_title：Inhalation toxicology

authors： Evans J,Chen Y

更新日期：2009-02-01 00:00:00

abstract：:Cellulose fibers, along with many other organic fibers, are durable. Therefore, if inhaled, they have the potential to persist within the lung, and may then cause disease. Here we report the effects of injecting high-purity cellulose fibers into the abdominal cavity of rats. A respirable fraction of cellulose fiber wa...

journal_title：Inhalation toxicology

authors： Cullen RT,Miller BG,Clark S,Davis JM

更新日期：2002-07-01 00:00:00

abstract：:Risk assessment of occupational exposure to nanomaterials is needed. Human data are limited, but quantitative data are available from rodent studies. To use these data in risk assessment, a scientifically reasonable approach for extrapolating the rodent data to humans is required. One approach is allometric adjustment...

journal_title：Inhalation toxicology

authors： Kuempel ED,Tran CL,Castranova V,Bailer AJ

更新日期：2006-09-01 00:00:00

abstract：:The aim of this study was to investigate the dose-related effects of dichlorvos inhalation on electrophysiological alterations of diaphragm and phrenic nerve and the changes in the histologic structure of respiratory system. This study was performed on 33 rats divided into 5 groups, inhaling 1, 2, 5, 10, and 15 microg...

journal_title：Inhalation toxicology

authors： Atiş S,Cömelekoğlu U,Coşkun B,Ozge A,Ersöz G,Talas D

更新日期：2002-02-01 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

authors： Carll AP,Haykal-Coates N,Winsett DW,Hazari MS,Ledbetter AD,Richards JH,Cascio WE,Costa DL,Farraj AK

更新日期：2015-02-01 00:00:00

abstract：OBJECTIVE:Mucociliary clearance sustains a baseline functionality and an "on demand" capability to upregulate clearance upon irritant exposure involving mucus hypersecretion and accelerated ciliary beat frequency (CBF) modulated by nitric oxide (NO). This study characterized these elements as well as cellular and exoge...

journal_title：Inhalation toxicology

authors： Carson JL,Zhou L,Brighton L,Mills KH,Zhou H,Jaspers I,Hazucha M

更新日期：2017-02-01 00:00:00

abstract：:Irritant-induced inflammation of the airways may aggravate respiratory allergy induced by chemical respiratory allergens. Therefore, it was studied whether airway irritation by sulfur dioxide (SO(2)) would enhance respiratory allergic reactions to trimellitic anhydride (TMA), using a rat model. Brown Norway (BN) rats ...

journal_title：Inhalation toxicology

authors： Arts JH,Jacobs EJ,Kuper CF

更新日期：2010-02-01 00:00:00

abstract：:It is well documented that inhalation of sulfur mustard causes injury of the respiratory system. While all of the reports and surveys thoroughly document long-term pulmonary effects after significant exposure to mustard, there is no direct evidence that addresses the issue of long-term respiratory effects in individua...

journal_title：Inhalation toxicology

authors： Ghanei M,Fathi H,Mohammad MM,Aslani J,Nematizadeh F

更新日期：2004-07-01 00:00:00

abstract：:Endotoxin causes an inflammation at the bronchial and alveolar level. The inflammation-induced increase in permeability of the bronchoalveolar epithelial barrier is supposed to cause a leakage of pneumoproteins. Therefore, their concentrations are expected to increase in the bloodstream. This study aimed at examining ...

journal_title：Inhalation toxicology

authors： Widmeier S,Bernard A,Tschopp A,Jeggli S,Dumont X,Hilfiker S,Oppliger A,Hotz P

更新日期：2007-04-01 00:00:00

abstract：:Fine particulate matter (PM(2.5)) is associated with respiratory effects, and asthmatic children are especially sensitive. Preliminary evidence suggests that combustion-derived particles play an important role. Our objective was to evaluate effect estimates from different PM(2.5) exposure metrics in relation to airway...

journal_title：Inhalation toxicology

authors： Allen RW,Mar T,Koenig J,Liu LJ,Gould T,Simpson C,Larson T

更新日期：2008-02-01 00:00:00

abstract：:Respiratory disturbances play a central role in chemical warfare nerve agent (CWNA) induced toxicity; they are the starting point of mass casualty and the major cause of death. We developed a microinstillation technique of inhalation exposure to nerve agent VX and assessed lung injury by biochemical analysis of the br...

journal_title：Inhalation toxicology

authors： Graham JR,Wright BS,Rezk PE,Gordon RK,Sciuto AM,Nambiar MP

更新日期：2006-06-01 00:00:00

abstract：:Adult Sprague-Dawley (SD) male rats were exposed for a single 3 h period to air, ozone (O₃) or O₃) followed by tobacco smoke (O₃/TS). For pulmonary effects, bronchoalveolar lavage (BAL) cells and fluid were analyzed. Data revealed a significant increase in polymorphonuclear leukocytes (PMN), total protein and albumin ...

journal_title：Inhalation toxicology

authors： Bhoopalan V,Han SG,Shah MM,Thomas DM,Bhalla DK

更新日期：2013-01-01 00:00:00

abstract：:The understanding of historical ambient asbestos concentrations is critical to exposure mapping and retrospective health impact studies involving asbestos related diseases. Two presentations at the University of Montana Center for Environmental Health Sciences Asbestos Conference (July 28, 2005) introduced novel metho...

journal_title：Inhalation toxicology

authors： Webber JS,Getman M,Ward TJ

更新日期：2006-11-01 00:00:00

abstract：CONTEXT:Particulate air pollution, for example, from ultrafine (UF) particles, has negative health effects. However, there is still limited knowledge regarding the fate of inhaled particles in the human body. OBJECTIVES:To describe the normal lung deposition and 1 week particle retention of indium-111 labeled UF carbo...

journal_title：Inhalation toxicology

authors： Klepczyńska-Nyström A,Sanchez-Crespo A,Andersson M,Falk R,Lundin A,Larsson BM,Svartengren M

更新日期：2012-08-01 00:00:00

abstract：:This study is focused on the characterization of particles emitted in the metal active gas welding of carbon steel using mixture of Ar + CO2, and intends to analyze which are the main process parameters that influence the emission itself. It was found that the amount of emitted particles (measured by particle number a...

journal_title：Inhalation toxicology

authors： Guerreiro C,Gomes JF,Carvalho P,Santos TJ,Miranda RM,Albuquerque P

更新日期：2014-05-01 00:00:00

abstract：:The Toxicological Evaluation of Realistic Emissions Source Aerosols (TERESA) study was carried out at three US coal-fired power plants to investigate the potential toxicological effects of primary and photochemically aged (secondary) particles using in situ stack emissions. The exposure system designed successfully si...

journal_title：Inhalation toxicology

authors： Kang CM,Gupta T,Ruiz PA,Wolfson JM,Ferguson ST,Lawrence JE,Rohr AC,Godleski J,Koutrakis P

更新日期：2011-08-01 00:00:00

abstract：:This study aims to investigate the negative effects of chronic exposure to isoflurane on spermatogenesis and explore the underlying mechanisms. Sixty male rats were randomly allocated to two groups: control group, receiving no treatment, and anesthesia group, administrated exposure to isoflurane (2 ppm) for 25 consecu...

journal_title：Inhalation toxicology

authors： Ding Y,Yu J,Qu P,Ma P,Yu Z

更新日期：2015-01-01 00:00:00

abstract：:Wollastonite is a naturally occurring calcium silicate (CaSiO(3)) that is produced in both powder and fibrous forms. It is a valuable industrial mineral used in plastics, ceramics, metallurgical applications, paint, and friction products. For some applications wollastonite serves as an asbestos replacement. To varying...

journal_title：Inhalation toxicology

authors： Maxim LD,McConnell EE

更新日期：2005-08-01 00:00:00