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Background: Endotoxin/LPS is ubiquitous in our environment. The question whether lipopolysaccharide (LPS) is beneficial or disease-promoting in relation to asthma and allergy has been raised in several recent studies. Some have reported a positive correlation between the level of LPS in house dust and the symptoms of asthmatic children. Others have found that exposure to LPS appears to protect against...
Indoor suspended particulate matter (SPM) consists of many different types of particles, the vast majority of which are less than 2.5 μm in diameter. An important question is how these particles, being inhalable, contribute to asthma and respiratory symptoms. One possibility is that these particles have an adjuvant effect on the immune response and increase the IgE production, or cause a non-specific...
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