Chinese scientists have found that small "chunks" of genetic material from food into the blood of people. Apparently, they can influence the activity of our genes.
A team of scientists, led by Chen-Yu Zhang of Nanyangskogo University, examined the blood of twenty-one volunteer and found it microRNA rice and other grains and vegetables.
MicroRNAs — is quite small sets of nucleotides (genetic "letters"). They do not encode any proteins, but the overwhelming (in varying degrees), the activity of various genes — their targets.
According to the study, published in Cell Research, blood test contained about thirty different types of miRNAs belonging to vegetable foods: rice, potatoes, wheat, cabbage, etc.
The authors assume (but not yet tested) that these "guests" can affect the lives of our cells. For example, it was shown that one of the changes the susceptibility of rice microRNAs receptors involved in the regulation of blood purification of low-density lipoprotein — the "bad" cholesterol.
MicroRNAs may be new and not yet studied the type of functional molecules derived from food, such as vitamins and minerals.
It is known that lactose tolerance — one of the components of milk — arose in adults has only recently (in evolutionary terms), after the domestication of cows. Chen-Yu Zhang admits that his group discovered microRNA — it traces adaptation of people to the top of growing and cultivation of plants. According to him, a new study shows once again how interconnected all life on our planet.