Results 1 to 10 of about 688,620 (409)

Dynamics of airflow in a short inhalation [PDF]

Journal of the Royal Society Interface, 2015
During a rapid inhalation, such as a sniff, the flow in the airways accelerates and decays quickly. The consequences for flow development and convective trans- port of an inhaled gas were investigated in a subject geometry extending from the nose to the bronchi.
Bates, Alister, Calmet, Hadrien, Cetto, Raul, Doorly, Denis, Gambaruto, Alberto, Houzeaux, Guillaume, Schroter, Robert, Tolley, Neil   +7 more
arxiv   +9 more sources

The Inhalation Characteristics of Patients When They Use Different Dry Powder Inhalers [PDF]

Journal of Aerosol Medicine, 2015
Background: The characteristics of each inhalation maneuver when patients use dry powder inhalers (DPIs) are important, because they control the quality of the emitted dose.
Alaboud A, Chrystyn H, Dinesh Saralaya, Harold S.R. Hosker, Henry Chrystyn, John Stephenson, Pedersen S, Philip Chetcuti, Wahida Azouz   +8 more
core   +2 more sources

Establishment of an artificial particulate matter-induced lung disease model through analyzing pathological changes and transcriptomic profiles in mice

Scientific Reports, 2023
Particulate matter (PM), an environmental risk factor, is linked with health risks such as respiratory diseases. This study aimed to establish an animal model of PM-induced lung injury with artificial PM (APM) and identify the potential of APM for ...
Dong Im Kim, Mi-Kyung Song, Ji Eun Yuk, Hyeon Jin Seo, Kyuhong Lee   +4 more
doaj   +1 more source

Formaldehyde exposure induces differentiation of regulatory T cells via the NFAT-mediated T cell receptor signalling pathway in Yucatan minipigs

Scientific Reports, 2022
The use of minipigs (Sus scrofa) as a platform for toxicological and pharmacological research is well established. In the present study, we investigated the effect of formaldehyde (FA) exposure on helper T cell-mediated splenic immune responses in ...
Jeongsik Park, Goo-Hwa Kang, Youngkyu Kim, Ju Young Lee, Jeong Ah Song, Jeong Ho Hwang   +5 more
doaj   +1 more source

A Study on the Behavior Patterns of Liquid Aerosols Using Disinfectant Chloromethylisothiazolinone/Methylisothiazolinone Solution

Molecules, 2021
This study evaluates the behavioral characteristics of components (methylisothiazolinone (MIT) and chloromethylisothiazolinone (CMIT)) contained in disinfectant solutions when they convert to liquid aerosols.
Yong-Hyun Kim, Mi-Kyung Song, Kyuhong Lee   +2 more
doaj   +1 more source

Inhalation of lung spheroid cell secretome and exosomes promotes lung repair in pulmonary fibrosis

Nature Communications, 2020
Idiopathic pulmonary fibrosis (IPF) is a fatal and incurable form of interstitial lung disease in which persistent injury results in scar tissue formation.
P. Dinh, Dipti Paudel, H. Brochu, Kristen D. Popowski, M. Gracieux, Jhon Cores, Jhon Cores, Ke Huang, M. T. Hensley, Erin Harrell, A. Vandergriff, Arianna George, R. Barrio, Shiqi Hu, Shiqi Hu, Tyler A. Allen, K. Blackburn, T. Caranasos, Xinxia Peng, L. Schnabel, K. Adler, L. Lobo, Michael B Goshe, Ke Cheng, Ke Cheng   +24 more
semanticscholar   +1 more source

Polypropylene nanoplastic exposure leads to lung inflammation through p38-mediated NF-κB pathway due to mitochondrial damage

Particle and Fibre Toxicology, 2023
Background Polypropylene (PP) is used in various products such as disposable containers, spoons, and automobile parts. The disposable masks used for COVID-19 prevention mainly comprise PP, and the disposal of such masks is concerning because of the ...
Jong-Hwan Woo, Hyeon Jin Seo, Jun-Young Lee, Iljung Lee, Kisoo Jeon, Bumseok Kim, Kyuhong Lee   +6 more
doaj   +1 more source

Coconut Oil Alleviates the Oxidative Stress-Mediated Inflammatory Response via Regulating the MAPK Pathway in Particulate Matter-Stimulated Alveolar Macrophages

Molecules, 2022
Exposure to particulate matter (PM) is related to various respiratory diseases, and this affects the respiratory immune system. Alveolar macrophages (AMs), which are defenders against pathogens, play a key role in respiratory inflammation through ...
Xinyu Chen, Dong Im Kim, Hi-Gyu Moon, Minchul Chu, Kyuhong Lee   +4 more
doaj   +1 more source

Humidifier disinfectant, sodium dichloroisocyanurate (NaDCC): assessment of respiratory effects to protect workers’ health

Scientific Reports, 2021
In South Korea, it has been found that biocides used to control and eliminate harmful organisms are used as humidifier disinfectants and cause lung disease in users.
DongSeok Seo, Yong-Hoon Lee, JiMin Jo
doaj   +1 more source

Inhalation and deposition of spherical and pollen particles after middle turbinate resection in a human nasal cavity [PDF]

Respiratory Physiology & Neurobiology Volume 294, December 2021, 103769, 2021
Middle turbinate resection significantly alters the anatomy and redistributes the inhaled air. The superior half of the main nasal cavity is opened up, increasing accessibility to the region. This is expected to increase inhalation dosimetry to the region during exposure to airborne particles.
arxiv   +1 more source