Today, a few scientists are conducting research on organisms with a much higher life expectancy than other species in nature. By exploring genes and biochemical pathways to slow down the aging process, they hope to find a way to extend human life. Maybe some of us have heard about concept An aging recitation, because it happens right on our own body and others. The signs of aging can be mentioned as sagging skin, silver hair, hard joints and emitting a cry, .
.. All these signs show that the body's composition components include protein and Many other biological molecules have no longer work as initially. Therefore, we are susceptible to chronic diseases such as cancer, Alzheimer, diabetes,
. and when the age is higher, the risk of death through each year by our year. Fur, elephants, seagulls, some dog breeds and many other animals own genes and special biochemical streets to live long. Photo: Smithsonianmag. "When you live, you create lesions inside your body at the molecular level. These lesions accumulate gradually over time. In essence, this is the aging, "said Vadim Gladyshev, an aging specialist at the Harvard Medical University, said. The aging process occurs faster for some animals. Usually, larger animals tend to live longer than smaller animals. But even when taking into account the body size factor, life expectancy between large animals is similar to still significant differences
For example, a house mouse only lives two or three years, while mice in the feather - a similar size rodent - live up to more than 35 years. People live twice as long as chimpanzees, our nearest relatives.Myotis Brandtii is a longest-known bat species known so far. Although the size of Myotis Brandtii bats is only 1/3 of a mouse, its maximum life expectancy is up to 41 years. This is a huge difference between body mass and longevity. "It is equivalent to longer life of 240 years to 280 years of people [if calculated according to the body size], with little or no signs of aging. These bats are extraordinary, and the question is why do they live so long? ", Emma Teeling, biologist at College Dublin University (Ireland), said. Teeling can be broken down into two smaller content. First: The reason for evolution causes some species to live long, while other species do not. Second: What are genetic and metabolic procedures that allow them to do that? With recent discoveries of scientists, the answer to the first question is becoming quite clear. The energy level that a species used to prevent or correct in-cellular injuries depends on the possibility of an individual that exists long enough to benefit from all these repairs. "Animals want to invest energy so that the body is not destroyed too quickly, but they don't want to excessively invest," said Tom Kirkwood, Biologist at Newcastle University (UK), said. It means that a tiny rodent like mice will not gain many benefits by investing most energy into repairing cell damage, because anyway they can become a lunch of predators within a few months. Lower energy investment means they will get older faster. In contrast, large animals like whales and elephants are less vulnerable to predators or other random effects. They have the ability to survive long enough to reap benefits from much energy investment to repair the body. "It's no surprise that animal groups like birds and bats can escape enemies by flying Tend to live longer than their size, "Kirkwood said. "This also applies to mice in the fears. They live in underground caves, which are almost safe to the predators ". But the researchers want the researchers most to answer:" How long species can delay aging ? ". The secret is gradually revealed when they compare different species of longevity. They found that long-distance species accumulated the lesions at the molecular level slower than the species with a shorter lifespan. For example, the mouse is a ribosome - the structure in the cell is responsible Protein assembly - works with incredible high accuracy. It only has 1/10 of errors against normal ribosome, according to the study by Vera Gorbunova biologists and colleagues at Rochester University (USA). This happens not only in mice. In another study compared to 17 rodents with different life expectations, Gorbunova's group realized that longer living species tend to own the ribosome more accurately. "The protein of mouse is also stable More than the protein of other mammals ", Rochelle Buffenstein, researcher at the department . Dịch vụ: Thiết kế website
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