Although many people with dietary allergies experience mild symptoms when exposed to triggering foods, some face potentially fatal consequences. A bacterial compound called butyrate that's made by healthy microbiomes has shown promise against allergic reactions in lab tests, but it's nasty to take orally. Today, scientists describe a more palatable way to deliver this compound and report that their 'polymeric micelles' are effective against peanut allergies in mice. The treatment could someday counteract many types of food allergies and inflammatory diseases.
Although many people with dietary allergies experience mild symptoms when exposed to triggering foods, some face potentially fatal consequences. A bacterial compound called butyrate that's made by healthy microbiomes has shown promise against allergic reactions in lab tests, but it's nasty to take orally. Today, scientists describe a more palatable way to deliver this compound and report that their"polymeric micelles" are effective against peanut allergies in mice.
"But butyrate has a very bad smell, like dog poop and rancid butter, and it also tastes bad, so people wouldn't want to swallow it," says Shijie Cao, Ph.D., who is presenting the results at the meeting for the team, which is at the University of Chicago. And even if people could choke it down, butyrate would be digested before reaching its destination in the lower gut.
The researchers administered these micelles to the digestive systems of mice lacking either healthy gut bacteria or a properly functioning gut lining. Afterreleased the butyrate in the lower gut, the inert polymers were eliminated in the feces. The treatment restored the gut's protective barrier and microbiome, in part by increasing production of peptides that kill off harmful bacteria, which made room for butyrate-producing bacteria.
Belgique Dernières Nouvelles, Belgique Actualités
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