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Sunday, March 25, 2018

In the intestine this bacterium, able to deal with autism

The relationship between symptoms of autism and intestinal flora was found by a group of scientists under the leadership of Mauro Costa-Mattioli of Beloruskogo College in Houston. As shown by the series of experiments conducted by researchers, bacteria, Lactobasillus reuteri allows a very large extent to bring the behavior of mice with autism to normal, typical for healthy individuals.

photo: pixabay.com

The researchers took into account the fact that children with autism more often born to mothers who during pregnancy experienced problems with metabolism, as well as those women who are obese.

The experts used for their experiment, mice that were divided into two groups: one was fed a balanced and “healthy” food, while the second was awarded the “fast food”, and they could consume it in unlimited quantities. Then the mouse brought the offspring and, as expected, and scientists, among young mice of the second group was more than those who showed characteristic symptoms of autism — introversion and the tendency to repetition of the same action.

By comparing the intestinal flora of mice with autism and their normal relatives of the same age, the scientists found a number of differences, the most conspicuous of which was that they did not have the kind of Lactobasillus bacteria reuteri. Earlier, experts had been aware of the many important functions performed by these organisms — in particular the development of viral diarrhea, colic and a number of pathogenic bacteria. As it turned out they played a role in the “protection” of autism: when the number of mice these bacteria were transplanted artificially, their behavior has become much more like typical for mice without autism. According to scientists, is most likely due to the fact that Lactobasillus reuteri can control the level of the hormone oxytocin that causes to get pleasure from social contacts.

However, experts note that some of the signs of autism — for example, increased anxiety — mice survived.

The results of their study, scientists reported in the journal Cell.

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