Dust microbiome: Difference between revisions
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People spend a significant amount of time indoors, especially within their homes, where they are exposed to a large number of microbes which can have important implications for their health. With the advancement of sequencing technologies, it is now possible to study the indoor microbiome and how it affects the inhabitants. House dust is the main reservoir of microbial taxa in the domestic environment. The amount and diversity of the microbiome in dust affect health, especially because dust-born microbes and their products suspend into the air and produce a significant indoor exposure by breathing. | People spend a significant amount of time indoors, especially within their homes, where they are exposed to a large number of microbes which can have important implications for their health. With the advancement of sequencing technologies, it is now possible to study the indoor microbiome and how it affects the inhabitants. House dust is the main reservoir of microbial taxa in the domestic environment. The amount and diversity of the microbiome in dust affect health, especially because dust-born microbes and their products suspend into the air and produce a significant indoor exposure by breathing. | ||
Indoor dust includes different fungi and bacteria (mostly gram-positive bacteria). Molecular methods such as next generation sequencing are reliable tools for identifying and tracking the bacterial and fungal diversity in dust samples | Indoor dust includes different fungi and bacteria (mostly gram-positive bacteria). Molecular methods such as next generation sequencing are reliable tools for identifying and tracking the bacterial and fungal diversity in dust samples. For that purpose, 16S ribosomal RNA gene (16S rRNA gene) (V3-V4 region) and internal transcribed spacer (ITS) amplicon (ITS2 region) are commonly analyzed. | ||
Many studies on the microbiome of house dust have focused on microbial taxa associated with allergies and asthma. Interestingly, higher microbial diversity in the environment has been found to be inversely associated with asthma. For example, children who grow up in the environments with a wide range of microbial exposures, like farming environments or households with a lot of members, are more likely protected from childhood asthma and atopy than urban children and | Many studies on the microbiome of house dust have focused on microbial taxa associated with allergies and asthma. Interestingly, higher microbial diversity in the environment has been found to be inversely associated with asthma. For example, children who grow up in the environments with a wide range of microbial exposures, like farming environments or households with a lot of members, are more likely to be protected from childhood asthma and atopy than urban children and single children. | ||
Most prominent environmental factors affecting the house dust microbiome are: | Most prominent environmental factors affecting the house dust microbiome are: | ||
* living conditions – moisture is associated with more fungi and molds | |||
* level of urbanization - more urbanized areas have a lower microbial diversity and higher allergy rates | |||
* season – significant variation in fungal, but not bacterial composition | |||
* pets – contribute to higher microbial diversity, which reduces health risks | |||
[[Category:Indoor Air Pollutants]] | |||
Latest revision as of 11:35, 10 September 2026
People spend a significant amount of time indoors, especially within their homes, where they are exposed to a large number of microbes which can have important implications for their health. With the advancement of sequencing technologies, it is now possible to study the indoor microbiome and how it affects the inhabitants. House dust is the main reservoir of microbial taxa in the domestic environment. The amount and diversity of the microbiome in dust affect health, especially because dust-born microbes and their products suspend into the air and produce a significant indoor exposure by breathing.
Indoor dust includes different fungi and bacteria (mostly gram-positive bacteria). Molecular methods such as next generation sequencing are reliable tools for identifying and tracking the bacterial and fungal diversity in dust samples. For that purpose, 16S ribosomal RNA gene (16S rRNA gene) (V3-V4 region) and internal transcribed spacer (ITS) amplicon (ITS2 region) are commonly analyzed.
Many studies on the microbiome of house dust have focused on microbial taxa associated with allergies and asthma. Interestingly, higher microbial diversity in the environment has been found to be inversely associated with asthma. For example, children who grow up in the environments with a wide range of microbial exposures, like farming environments or households with a lot of members, are more likely to be protected from childhood asthma and atopy than urban children and single children.
Most prominent environmental factors affecting the house dust microbiome are:
- living conditions – moisture is associated with more fungi and molds
- level of urbanization - more urbanized areas have a lower microbial diversity and higher allergy rates
- season – significant variation in fungal, but not bacterial composition
- pets – contribute to higher microbial diversity, which reduces health risks