American researchers have managed to revive some of the stomach cells four hours after death. Scientists and technologists have expressed hope that achievement could be a milestone in treating brain disease. But some are worried that they may not be perfect in science and technology, but the possibility of reviving the dead brain may lead to a side effect of reducing organ donation.
A team of researchers at the Yale University Medical School in New York said he was able to recover some of the brain cells that had lasted four hours after using BrainEx technology to inject artificial blood into the brain.
The results of the research were published in the international journal Nature.
The researchers received 32 animal bodies four hours after they were dead at the meat processing company and then extracted the brain and linked them to the brain's X-rays that they developed.
Brain X consists of a reservoir containing artificial blood and long tubes. The tube was associated with the main artery in the brain of the pig, and the artificial blood was placed in the brain in the same way as the blood circulation when the pulse was radiated by an X-ray device in the brain. In our brain we put blood containing oxygen into the brain as we were alive. Artificial blood contains oxygen and a stabilizer that acts as a substitute for blood.
After six hours of injecting artificial blood into the brain of dead pigs using brain X, the researchers looked at every corner of the brain. And he confirmed a big change in the brain of the pig. According to the study, the anatomical shape of the brain cells remained unchanged and the vascular structure was restored. Circulation function and vascular neuroinflammation have been elicited, and the electrical signals that arose when the brain cells were alive were also captured.
Oh Hyun-jong, a researcher at the Korean Institute for Neurology Research, said: "When an animal dies, blood flow to the brain is interrupted, and oxygen and energy are not transmitted to the brain cells." This causes brain cells to become necrotic or distorted.
Scientists and technicians expect the study to be applied to the treatment of brain disease such as stroke, Parkinson's disease and Alzheimer's disease.
"Brain diseases such as dementia and Parkinson's disease are caused by brain cell damage and brain structures," Dr. Oh said. "We do not know what substance the brain contains, Used to treat related diseases."
This is still a result of animal testing, but as technology is more advanced, blood flow to the brain such as a heart attack is not properly delivered to emergency patients can be used to reduce the degree of brain damage analysis.
But this study does not just drop the pink future to treat the disease. This is because it can cause controversy over the guidelines for defining life and death in terms of returning dead cells. "If technology develops to a new level and applies to real human beings, a new benchmark for decision making on the brain," said Ryu-hoon, Research Director of Neuroscience at the Korean Institute of Science and Technology (KIST). "
"The influence of science on our society is getting bigger and bigger," Ryu added. "It is time for many people to think and think about the effect of rippling." Recognizing this ethical controversy, Nature has commented on various experts in this paper.
Professor Hyun In-su, a professor at Case Western Reserve University in the United States, said in an interview: "Some rescue or brain reminders of some people become more convincing," he said. "The entire brain function has not been revived, but has not returned to the cognitive and sensory functions of pigs," researchers said in data that was distributed through nature as a conscious ethical problem.[원호섭 기자][ⓒ 매일경제 & mk.co.kr, 무단전재 및 재배포 금지]