Scientists Revived Brain of Dead Animal
Let's talk about US scientists revived brain of dead animal for the first time. US researchers partially revived the brain of 32 pigs by artificial blood, four hours after the animals died.
American scientists have developed a system called BrainEx by means of which some functions of a brain separated from the body can be restored. The report on the results of the research has been published in the scientific journal Nature .View image on Twitter
A team of researchers from Yale Medical School, Connecticut, USA, has connected the brains extracted from 32 pigs (acquired in food processing facilities) to a special system that pumps a nutrient-rich drug that mimics blood, via the main arteries. The experiment was carried out four hours after the animals died.
The results of the study revealed that the brain of the pigs was surprisingly resistant to lack of oxygen. By connecting to their 'artificial bodies', the brains went back to functioning at a basic level .
His blood vessels began to pump the medication and, shortly after, the function of the capillaries was also restored. Throughout the six hours of the experiment (decomposition period of an isolated brain), the number of dying cells was drastically reduced.
What does it give us?
"These findings demonstrate that, under adequate conditions, the isolated and intact brain of large mammals has an underestimated ability to restore microcirculation and cellular and molecular activity after a prolonged post mortem interval," explains the study.
However, during the experiment the brain electroencephalograms were completely flat. In other words, the brains examined could not think or feel anything, nor showed any sign of other forms of higher nervous activity. In this sense, according to medical standards, can not be considered really alive, say the specialists.
The researchers note that the experiment has allowed to know that the damage that occurs in the brain when blood flow is interrupted is not as irreversible as it was believed and could be treated.
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"Now we know that it is a gradual process and that part of it can be postponed, preserved or even reversed," said one of the members of the scientific group, Nenad Sestan, at a press conference.
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