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They developed a calculator that only needs to enter the age of the dog (an integer greater than or equal to 1), and it can be converted into the age of the dog corresponding to the person with one click
.
Researchers compared the age of Hollywood superstar Tom Hanks with Labrador
.
It can be seen from the figure that the epigenetic clock of dogs before the age of two is much faster than that of humans
This two-year-old Labrador looks like a puppy, but in fact its biological age has reached middle age, equivalent to 42 years of human life
.
Using this formula to calculate, it can be found that the life stages of dogs and humans are the same
.
For example, a 7-week-old puppy is equivalent to a 9-month-old human baby, and they are all just beginning to grow teeth
The formula also matches the average lifespan of Labrador dogs (12 years) with the average lifespan of humans (70 years)
.
Collectively, these findings indicate that the degree of DNA methylation in dogs and humans gradually increases with age
.
If this technique is applied to issues such as the different life spans of different dog breeds, it may reveal more interesting results
The research team hopes to study these epigenetic characteristics of all dog breeds, hoping to find out why some dogs get sick at a young age or die earlier than normal, while some dogs live longer and are disease-free
.
Research on human aging and longevity
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