[Sciencedaily] Research suggests that bed dust microorganisms can boost children’s health


In the largest study of its kind, researchers from the University of Copenhagen, in collaboration with the Danish Pediatric Asthma Center at Herlev and Gentofte Hospitals, have found a link between bacteria in children and microorganisms in their bed dust. The correlation suggests that the microbiome may reduce a child’s risk of developing asthma, allergies, and autoimmune diseases later in life. Our beds are filled with microbial life that seems invisible to the human eye. It is life itself, especially during childhood, that can affect how the microbiome in our bodies develops, and from there, how well we are able to cope with various diseases.

To better understand this relationship, researchers at the Department of Biology of the University of Copenhagen and the Danish Pediatric Asthma Center analyzed dust samples from the beds of 577 infants before comparing them to other samples. respiratory samples of 542 children. This is the largest study of its kind, and the aim is to determine what environmental factors influence the microbial composition of bed dust and whether there is a correlation between bed dust microorganisms and bacteria. in the respiratory tract of children or not.

“We found a correlation between the bacteria we found in bed dust and the bacteria we found in children. Although they are not the same, it is an interesting finding that shows that these bacteria influence each other. It could prove to be impactful about reducing the risk of asthma and allergies in later years,” explains Professor Søren J. Sørensen of UCPH’s Department of Biology.

Constantly changing bed sheets may not be necessary

It is scientifically proven – a high diversity of microorganisms in the home contributes to the development of a child’s resistance against certain diseases and allergies. Beds can be a breeding ground for bacteria, fungi and other microorganisms.

“We found that the microorganisms that live in us are important for our health, such as asthma and allergies, as well as human diseases such as diabetes II and obesity. But to treat these diseases better, we need to understand processes by which microorganisms emerge in the first stage of our life. And, it seems the bed plays a role,” added Søren J. Sørensen:

“The microorganisms in the bed are influenced by the surroundings of the home, where there is a high bacterial diversity which is quite beneficial. Simply put, frequent bed sheet changes may not be necessary, but we need to investigate this a bit more before we can say for sure.”

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The benefits of country life, pets and siblings

A total of 930 different types of bacteria and fungi were found in dust collected from the beds of children as young as six months old.

Bacterial abundance depends largely on the type of habitat that is sampled.

“Our previous studies have shown that people living in cities have less diverse gut bacteria than people living in rural areas. This is often attributed to them spending more time outdoors and being more exposed to nature. Our studies demonstrate that changes in the microbiome dust in the bed could also be an important reason for this difference,” says Søren J. Sørensen.

From previous studies, researchers also know that pets, siblings, and living in the countryside also contribute to a lower risk of developing autoimmune diseases.

The researchers’ next step is to investigate whether differences in the microbiome in bed dust could be directly linked to the development of diseases such as allergies and asthma.

according to the Faculty of Science University of Copenhagen

Source: Bed dust microorganisms may boost children’s health, study suggests



Faculty of Science – University of Copenhagen.

Journal Reference:

  1. Shashank Gupta, Mathis H. Hjelmsø, Jenni Lehtimäki, Xuanji Li, Martin S. Mortensen, Jakob Russel, Urvish Trivedi, Morten A. Rasmussen, Jakob Stokholm, Hans Bisgaard, Søren J. Sørensen. Environmental shaping of the bacterial and fungal community in infant bed dust and correlations with the airway microbiota. Microbiome, 2020; 8 (1) DOI: 10.1186/s40168-020-00895-w

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Translated by: thangngan2509

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