The international group of researchers found that human intestinals were rapidly changed during evolution, considerably different from its closest relatives and chimpanzees. The work was published in the Science magazine.
Scientists from Switzerland, the United States and the United Kingdom have grown miniature models of people, chimpanzees and mice of intestines, organoids through stem cells. These structures have given the first time directly to compare the development of the intestines of different types.
Through the sequence of a uniform RNA, researchers have identified significant differences in the activities of the genes responsible for digestion, immunity and metabolism. Differences are especially noticeable in enterocytes, cells responsible for absorption of nutrients. In people, they show signs of rapid evolution.
A clear example is a change in the genes responsible for sugar, lactose destruction. Such differences can explain to many modern people, the ability to digest dairy products at an adult age, a feature that rarely encounters mammals.
The authors emphasize that they are rapidly developing DNA regions that are often associated with the risk of metabolic and gastrointestinal diseases. The new data will help to better understand how a person's salt developed and what features make it among unique mammals.
Translation of: Euromedia24.com
