Release date: 2015-04-17
The US "Washington Post" website published an article entitled "Human Hibernation Is No Long Fantasy" on April 13th. Scientists are inspired by hibernating animals and are using their experience in human medical care. One day may even Used for space travel. Some physicians are using "low body temperature therapy" (which reduces the patient's temperature by several degrees and maintains it for several days) to treat diseases such as traumatic brain injury or epilepsy.
Scientists are also experimenting to see if human body temperature can be lowered, keeping people in a state of sleep for days or even weeks, and then awakening them without causing side effects.
Leopold Summerer, head of the European Space Agency's senior concept group, said: "We have seen that science has made considerable progress to copy some of the science fiction episodes into the realm of scientific reality. It is not that we will soon Can train astronauts who can hibernate, but say that we are learning from nature about some of the conditions that animals experience during hibernation, such as how to avoid bone loss and muscle atrophy. Only this knowledge will greatly help us to carry out long distances. Space flight."
According to Summerl, a team of European biomedical experts, biologists and neurologists will quickly advise on future human hibernation research and funding issues. An Italian scientist said he would launch an experiment this month to lower the body temperature of an experimental animal for six hours to prepare for subsequent human experiments.
NASA has funded a first round of preliminary research to see if it is possible to keep astronauts hibernating for weeks. From the research report published last year, the possible benefits include reducing the dietary reserves on the spacecraft, reducing human waste, reducing living space and space for storage, fitness and recreation. And keeping astronauts asleep can reduce mental problems as much as possible.
Biologists are actively dissecting the neural pathways and biochemical pathways of some hibernating animals. For example, Arctic ground squirrels can set the body temperature above and below the freezing point in winter; several bears can sleep for 6 months without waking up at all.
"We believe that if we can understand how these animals are done, we can copy their principles to humans," said Clay Drew, a biochemist at the University of Alaska.
Drew and his colleagues believe that they have found the molecule responsible for this process, the adenosine A1 receptor. Although she already knows that if the receptor is stimulated, the body temperature of the animal will be lowered, but the principle of triggering this process has not been found.
She said: "We don't know what the natural signal of hibernation is, nor what part of the brain is emitted."
The next step is to study how to safely use drugs to stimulate adenosine A1 receptors, so that animals without hibernation habits enter the crouching state and remain for two or three weeks.
Source: Reference Message Network
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