What is the secret of longevity?

15.06.2009

Author Andersen

The secret of immortality people hope to uncover centuries. As known to anyone and it failed. But scientists do not sit back and push a variety of theories to explain the longevity. They all boil down to two possible reasons — a healthy lifestyle and genetic predisposition.


WTo get to the truth, the Spanish biologists decided to analyze the DNA of her 114-year-old compatriot.
The study was held and family longevity — 85-year-old nephew, sibling, which will celebrate the 102-year anniversary, and two daughters. One — 81 years old, the other — 77 years. They all live on the island of Menorca in the Mediterranean. Such a sample, scientists want to increase your chances to find an inherited gene for long life.

The main direction of research was, first of all, the bone tissues of the skeleton. First, scientists have scanned and determined their overall condition. It was found that the core of an old Spaniard is very strong, and he can envy of most young people. However, no genetic mutation, which could cause abnormal bone strength was not detected — no gene KLOTHO, which is responsible for the assimilation of minerals and preservation nor LRP5, recognized gene longevity.

There was no association found between the DNA of the Spaniard and his age — any changes in the genes that could explain such an advanced age. However, scientists have noted a wealth of health factors.

These include external features: warm Mediterranean climate and a balanced diet. In addition, the examinee has an active lifestyle. For example, up to 102 years it every day to make long bike rides. And he is constantly talking to the youngest members of the family takes care of their education.

DNA testing 114-year-old Spaniard has also become part of a global experiment in decoding the genome of the animal world. Scientists have long been interested in the question — why every species of beasts its lifetime. Even for those who have the same dimensions, is similar lifestyle and adhere to the same diet, the lifespan can vary tenfold.

For example, mice live for only two years, and their immediate family members flying squirrels — two to three decades. Another example can serve as chimpanzees and humans, the genome of which coincides more than 95%. However, we live twice as long as other primates. To answer this question, scientists at the University of Barcelona is not the first collect DNA samples from all over the world and their subsequent interpretation.

For example, mice live for only two years, and their immediate family members flying squirrels — two to three decades. Another example can serve as chimpanzees and humans, the genome of which coincides more than 95%. However, we live twice as long as other primates. To answer this question, scientists at the University of Barcelona is not the first collect DNA samples from all over the world and their subsequent interpretation.

According to the newspaper "Pravda"

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