Intestinal microflora, influencing all aspects of the life of the organism, studied by science for a long time.
Biologists from the Sanger Institute in Hinxton (UK) has discovered the presence in the human intestine for more than two thousand species of bacteria that were previously unknown to scientists.
But scientists still don’t know what its exact composition. Many microbes, for example, simply die when you try to extract them for research.
To make the study of the bacterial composition of the human gut more efficient, science proposed to study the microorganisms from communities and to analyze the DNA of each bacteria, and metagenome – the combination of DNA from different organisms. Moreover, the modern mathematical approaches and computer technologies allow to do it.
The scientists analyzed 12 thousand metagenome samples obtained in the course of a number of studies of the last few years. Comparing them with known samples of DNA of the bacteria of the intestinal microflora, experts have discovered previously unknown bacteria. As stated by researchers, “three-quarters of them belonged to the groups of bacteria that had never met geneticists”.
The finding suggests that gut bacteria is not universal and may vary among people of different regions. This feature is important to consider in therapy of different diseases and problems related to the intestinal tract.
“Made the discovery will allow a better understanding of how the disease of intestines and stomach, and how these bodies affect the health of the whole person,” said the authors of the project.