The researchers also found the gut microbial makeup of the two rodent groups differed: The mice exposed to dogs had more of the bacteria Lactobacillus johnsonii, an organism found in the dust from dog-owner homes.
When the researchers added L. johnsonii to the diet of the unexposed mice, they found the mice showed a reduced immune response in their airways to both, though not as much as mice originally exposed to the dog dust.
The next step will be understanding exactly what these microbes are doing in the gut, and how they affect the immune response in the airway, Lynch said.
Ultimately, understanding this process could lead to the development of microbial-based therapies to treat or prevent asthma.
Original article on LiveScience
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