Ambient Pm2.5 Exposure
Ambient Pm2.5 Exposure - Related Videos
06:49
Visualization of Ambient Mass Spectrometry with the Use of Schlieren Photography
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Cited by 4 •
2016
This paper presents a protocol for the visualization of gaseous streams of an ambient ionization source using schlieren photography and mass spectrometry.
08:48
Analysis of the Ambient Particulate Matter-induced Chromosomal Aberrations Using an In Vitro System
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Cited by 3 •
2016
This protocol describes techniques for the quantification and characterization of chromosomal aberrations in vitro in RAW264.7 mouse macrophages after treatment with ambient air particulate matter.
15:00
Applications of the Single-probe: Mass Spectrometry Imaging and Single Cell Analysis under Ambient Conditions
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Cited by 44 •
2016
Here, we present protocols to perform both ambient mass spectrometry imaging (MSI) of tissues and in-situ live single cell MS (SCMS) analysis using the single-probe, which is a miniaturized multifunctional device for MS analysis.
09:08
Developing a Salivary Antibody Multiplex Immunoassay to Measure Human Exposure to Environmental Pathogens
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Cited by 11 •
2016
In the current climate of scarce resources, new technologies are emerging that allow researchers to conduct studies cheaper, faster and with more precision. Here we describe the development of a bead-based salivary antibody multiplex immunoassay to measure human exposure to multiple environmental pathogens simultaneously.
10:11
Whole-Body Nanoparticle Aerosol Inhalation Exposures
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Cited by 51 •
2013
A whole-body nanoparticle aerosol inhalation exposure facility was constructed for nano-sized titanium dioxide (TiO2) inhalation toxicology studies. This system provides nano-TiO2 aerosol test atmospheres that have: 1) a steady mass concentration; 2) a homogenous composition free of contaminants; and 3) a stable particle size distribution during aerosol generation.
FAQs
Deposited particles can generate reactive oxygen species through their surfaces and attached chemicals. This oxidative activity provides an early biological signal after inhalation and can influence nearby respiratory tissues. In research, measuring this pathway helps connect particle deposition with downstream epithelial responses, innate immune activation, and changes in pulmonary inflammation.
Respiratory epithelial cells form a barrier between inhaled material and underlying tissue. Particle-related signaling can alter epithelial function, which may change how the lung responds to environmental challenges. Examining barrier effects alongside cytokine production helps researchers determine whether exposure is associated with localized tissue disruption rather than only a general inflammatory response.
The response can include activation of epithelial and innate immune signaling pathways, followed by changes in cytokine production. Cytokines are signaling proteins that coordinate immune activity, so altered production may reshape the intensity or character of pulmonary inflammation. These mechanisms provide a basis for investigating how inhaled pollution affects respiratory immune conditions.
Exposure models provide a controlled way to examine how inhaled particles affect the respiratory tract and immune responses. Investigators can use them to assess deposition-related effects, reactive oxygen species, epithelial signaling, cytokine changes, and pulmonary inflammation. Their value lies in linking exposure with biological outcomes under defined research conditions.
Population studies can examine relationships between ambient particle exposure and infectious disease outcomes across groups or settings. In immunology and infection research, they help evaluate whether pollution patterns are associated with altered host defense, increased susceptibility to respiratory pathogens, or differences in observed respiratory disease outcomes.
The topic connects environmental exposure with mechanisms that may influence pulmonary inflammation, host defense, and susceptibility to respiratory pathogens. Evidence from exposure models and population studies can therefore inform risk assessment by identifying relevant biological and disease outcomes. Those findings also support pollution-control strategies aimed at reducing associated respiratory health risks.