First gut bacteria may fight chronic diseases better

First gut bacteria may have a lasting effect on the ability to fight chronic diseases, according to a new study.

The new research shows that the first bacteria introduced into the gut has a lasting impact allowing science to adjust microbiomes to help ward off serious chronic diseases.

Findings by U of A microbial ecologist Jens Walter and his colleagues suggest differences in our microbial makeup likely depend on when we acquire our first microorganisms after birth and the order they arrive in our gut has a lasting impact on how the microbiome looks when we grow up.

“The discovery sheds new light on how these microbiomes, which are as personal as fingerprints, establish themselves and what drives their unique nature. That’s key to figuring out how to change our microbiomes for the better,” said Walter.|chronic diseases

In the study, researchers introduced distinct microbial communities, collected one at a time, from adult mice into the gastrointestinal tracts of young, genetically identical mice. The results showed that the microbiome in the adults was more similar to the microbiome introduced first.

Even using a cocktail of four different bacteria, the researchers repeatedly found that the first microbes showed the highest level(BS) of persistence and the strongest influence on how the gut microbiome developed.

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How common household cleaners could make kids overweight

Early life exposure to certain disinfectants used at home could be making children overweight by altering the composition of their gut bacteria, suggests new research.

Babies living in households that used eco-friendly cleaners had different microbiota and were less likely to be overweight as toddlers, showed the findings published in CMAJ (Canadian Medical Association Journal).

For the study, the researchers analysed the gut flora of 757 infants from the general population at age 3-4 months and weight at ages 1 and 3 years, looking at exposure to disinfectants, detergents and eco-friendly products used in the home.

The researchers looked at data from the Canadian Healthy Infant Longitudinal Development (CHILD) birth cohort on microbes in infant fecal matter. They used World Health Organization growth charts for body mass index (BMI) scores.|Household cleaners

Associations with altered gut flora in babies 3-4 months old were strongest for frequent use of household disinfectants such as multi-surface cleaners, which showed lower levels of Haemophilus and Clostridium bacteria but higher levels of Lachnospiraceae.

The researchers also observed an increase in Lachnospiraceae bacteria with more frequent cleaning with disinfectants.

They, however, did not find the same association with detergents or eco-friendly cleaners.

“We found that infants living in households with disinfectants being used at least weekly were twice as likely to have higher levels of the gut microbes Lachnospiraceae at age 3-4 months,” said Anita Kozyrskyj, Professor at the University of Alberta in Canada.

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