Scientists have discovered the incredible properties of the body bears during hibernation


20/03/2012

U.S. researchers have recently discovered the amazing ability of the body baribalov or black bears - without a trace of wound healing in the body of animals during hibernation. Medical experts in collaboration with the zoologists have found that delayed wound and heal, almost without leaving scars and opportunities for the development of infection.

Scientists hope to find out in the future, how is it possible to heal the wounds on the body bears at reduced body temperature, heart rate and metabolism.

This could help researchers who are studying the wound healing properties of the human body.

The information published in the journal Integrative Zoology, are particularly important for medical researchers who are constantly in search of improved methods for slow-healing wounds are prone to the development of infections in the elderly, malnourished patients, and people with diabetes.

The new analysis was part of the project, which lasted for 25 years and was founded by researchers from the Universities of Minnesota, Wyoming and Minnesota Department of natural resources, in order to survey 1,000 black bears, checking their health and behavior.

Watching the Bears with an electronic collar with a radio transmitter, the researchers also noticed the amazing wound-healing properties of the body of animals. They noted in their work: "Every year we have identified some individuals with wounds from hunting arrows and bullets, as well as wounds from the bites of bears or other predators. These skin lesions were applied at the beginning of winter, before the start of the season slumber, and in the most cases have been infected or inflamed. When we re-visited bears in their dens a few months later, many of the wounds on the body of animals, regardless of their degree of severity (even those that have not been processed by researchers) is fully healed. "

In order to experimentally verify the healing properties of the body bear, a team of scientists led careful monitoring of healing of small cuts on the skin of 14 animals with collars with radio transmitter found in the northern part of Minnesota. In the period from November (when the bears are just beginning to hibernate) and March (when the animals begin to wake up) wounds healed almost without leaving any traces. In addition, there have been no signs of infection, damaged layers of skin have been restored, and many bears on the site of the newly formed wounds even the hair follicles and the hair has grown.

One of the researchers, Professor David Garshelis (David Garshelis) from the University of Minnesota said in a statement the agency BBC Nature: "The fact is striking that the damage to the skin of animals of varying severity may almost disappear without a trace is during sleep or slow metabolism. This is a remarkable adaptation of the organism to hibernate. "

"They spend a den of stationary six months and not losing an ounce, no muscle, no bone, so I guess it is a kind of adaptation" - said Professor Garshelis.

During hibernation the body temperature of a black bear is reduced by about 7C, also greatly reduced and heart rate. People have low body temperature, or other conditions that prevent the circulation of the blood, can seriously complicate the process of wound healing.

For this reason, the research team in the near future is going to start looking for a mechanism that provides an incredible result of healing of wounds on the body bears.

Original: BBC


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