A group of scientists from South Korea, representing Poganski University of science and technology, found that the taste and smell of different dishes activate mechanisms that accelerate the aging process and reduce life expectancy. Thus, according to scientists, this effect does not depend on whether the food is absorbed by those who feel its smell.
Taste and smell are closely linked senses. Like other feelings, they arise from living beings due to the fact that in the body are activated by sensory neurons. Previously, it was also discovered that sensory neurons play a role in aging in many animals, however, the direct relationship of taste and smell sensations with how fast a living being is aging, according to scientists, was not too studied. It was known only that the damage to sensory neurons triggers the activation of slowing the aging FOXO. The specialists decided to conduct a series of experiments on round worms, or nematodes, to better understand the nature of such relationship
As shown by the first experiment, the smell and taste of the food provoked the roundworms production of the hormone called “insulin-6”, increasing levels of which reduces the activity of FOXO and, consequently, accelerates aging. Further investigation revealed that a similar chain of events was started, and in the case that the work of sensory neurons involved in the formation of taste and olfactory sensations, artificially activated with a special radiation, even if nematodes are with nothing to eat.
The researchers admit that their findings may be applicable not only to roundworms, but also to people, although this assumption is, of course, still requires additional evidence. The work of scientists was published in the journal Genes & Development.
This is not the first recent study in which scientists investigate the mechanisms of human aging, by resorting to experiments on nematodes. Recently, a group of researchers from Indiana University, with study of roundworms could compile a list of substances on the basis of which it would be possible to create life-extending and anti-aging drug.Related posts: