Getting antibiotics as a baby may have lasting effects on brain, behavior

arstechnica.com

Banishing bacteria from the body with antibiotics around birth may cause haywire signals in the brain and lasting behavioral changes, a series of studies suggests.


In the latest study, involving only mice, researchers found that low doses of penicillin given to pups before and after birth spurred changes in their blood-brain barrier and brain chemistry. The mice grew up to be more aggressive and have impaired social behavior, researchers reported Monday in Nature Communications.

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