Results 31 to 40 of about 306,111 (217)

Carbonyl Compounds Containing Formaldehyde Produced from the Heated Mouthpiece of Tobacco Sticks for Heated Tobacco Products

open access: yesMolecules, 2020
Diverse harmful compounds can be emitted during the heating of tobacco sticks for heated tobacco products (HTPs). In this study, the generation of harmful compounds from the filter, instead of tobacco in tobacco sticks, was confirmed.
Yong-Hyun Kim, Young-Ji An, Jae-Won Shin
doaj   +1 more source

Developmental toxicity of combined ethylbenzene and methylethylketone administered by inhalation to rats [PDF]

open access: yes, 2006
Pregnant Sprague–Dawley rats were exposed to ethylbenzene (EB; 0, 250, or 1000 ppm) and methylethylketone (MEK; 0, 1000, or 3000 ppm), alone and in combination, by inhalation, for 6 h/day, during days 6–20 of gestation.
Cadot, R.   +6 more
core   +1 more source

Pulmonary toxicity of printer toner following inhalation and intratracheal instillation

open access: yes, 2022
S.679-690The pulmonary effects of a finished toner were evaluated in intratracheal instillation and inhalation studies, using toners with external additives (titanium dioxide nanoparticles and amorphous silica nanoparticles).
Morimoto, Yasuo   +11 more
core   +1 more source

Modulated Uniaxial Compression Analysis of Respirable Pharmaceutical Powders

open access: yesKONA Powder and Particle Journal, 2020
We describe a new instrument and method for measuring compressed bulk density of respirable pharmaceutical powders under low compression pressure: the modulated compression tester.
David Barona   +6 more
doaj   +1 more source

Comparison of volatile organic compounds between cigarette smoke condensate (CSC) and extract (CSE) samples [PDF]

open access: yesEnvironmental Health and Toxicology, 2018
Cigarette smoke is a major risk factor for several diseases, including chronic obstructive pulmonary and cardiovascular diseases. The toxicity of the cigarette smoke can be determined in vitro.
Yong-Hyun Kim   +6 more
doaj   +1 more source

Improved Metered Dose Inhaler Technique When a Coordination Cap Is Used [PDF]

open access: yes, 2014
Background: Patients often experience problems using metered dose inhalers (MDIs), particularly poor coordination between inhalation start and dose actuation (TsIn: time difference between the start of an inhalation and the actuation of a dose), and fast
Stephenson, John   +9 more
core   +1 more source

Oxidant-induced epithelial alarmin pathway mediates lung inflammation and functional decline following ultrafine carbon and ozone inhalation co-exposure

open access: yesRedox Biology, 2021
Environmental inhalation exposures are inherently mixed (gases and particles), yet regulations are still based on single toxicant exposures. While the impacts of individual components of environmental pollution have received substantial attention, the ...
Nairrita Majumder   +12 more
doaj   +1 more source

A new sighting study for the fixed concentration procedure to allow for gender differences [PDF]

open access: yes, 2011
The fixed concentration procedure (FCP) has been proposed as an alternative to the median lethal concentration (LC50) test (organisation for economic co-operation and development (OECD) test guideline [TG] 403) for the assessment of acute inhalation ...
Creton, Stuart   +6 more
core   +1 more source

The biological effects of subacute inhalation of diesel exhaust following addition of cerium oxide nanoparticles in atherosclerosis-prone mice [PDF]

open access: yes, 2012
Background: Ceriumoxide(CeO2) nano particles improve the burning efficiency of fuel,however,little is known about health impacts of altered emissions from the vehicles.Methods: Atherosclerosis-prone apolipoprotein Eknockout (ApoE/) mice were exposed by ...
Boere, A. John F.   +7 more
core   +1 more source

Pulmonary response to toner, TiO2 and crystalline silica upon chronic inhalation exposure in syrian golden hamsters

open access: yes, 2022
S.699-729A chronic inhalation study of a test toner, TiO2, and crystalline silica was conducted by exposure of groups of Syrian golden hamsters (strain: Han:AURA) for 6 h/day, 5 days/wk for 18 mo.
Bellmann, B.   +6 more
core  

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