Science

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

Recently, a scientific research team in the United States announced that they had successfully restored the blood circulation and cellular physiological functions in a pig that had been dead for an hour through a series of manipulation methods, through which the vital organs of the dead pig's whole body started to function again. This experiment, in a sense, can be said to be a dead pig "back from the dead", perhaps a new challenge to our traditional perception of death.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

As we all know, any living organism has a life cycle, and the "death" of the organism is essentially attributed to the decay of cells. When cells divide slowly or even stop dividing for various reasons, then tissues and organs will be in a state of slow renewal or no longer renewed, thus the body as a whole will develop toward gradual aging until death, and this process is basically irreversible.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

So, if cell death is not "natural aging", but due to sudden death, is there a way to stop cell death and save the life of the whole organism?

It is with this starting point that a team of researchers in the United States recently conducted a targeted experiment. The technology used in this experiment is a new in vitro perfusion system called OrganEx. Prior to the experiment, the researchers selected a healthy pig, put it under deep anesthesia and then induced a heart attack, thereby inhibiting the circulation of blood in the pig's body. The cells in the pig suffered from severe hypoxia due to the prolonged absence of blood supply, and eventually the cells died in large numbers, various organs stopped functioning, and the pig showed no signs of life.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

One hour after the experimental pigs died, the researchers injected a special liquid substance containing the pigs' own blood, along with a synthetic hemoglobin, thrombosis-preventing and cell-protective drugs, into the pigs' bodies, and then continuously observed the changes in the various organs of the dead pigs.

Unexpectedly, after 6 hours of applying such measures, the blood circulation in the dead pig restarted and many cells were revitalized, especially in the brain, heart, kidneys, liver and other vital organs of the pig. Scientists involved in this experiment said that the original in a normal state, impossible to occur in the cell restart this phenomenon, through this experiment achieved, in a sense, humans may be able to stop the cell death.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

In fact, this is not the first time that this research team in the United States has done this, as the version 1.0 of the experiment was conducted back in 2019, when the technology adopted was the BrainEx extracorporeal perfusion system, and the method used now, with the main difference being in the drug, manner and time of perfusion. At that time, it was done by intracarotid perfusion of the dead pig containing artificial hemoglobin, various protective molecular fluids, etc. As a result, the brain of the dead pig was successfully revived within 4 hours after the death of the pig, and it was maintained for 6 hours as well.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

Through this experiment, scientists believe that if this technology is applied to revive human organs, then it is very likely to re-label the concept of "death", that is, death may no longer be a "black or white" concept, within a few hours of the body's death, through certain intervention techniques, it is entirely possible to change the previously considered irreversible process into a reversible process.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

Then, for the death of a person through modern medical standards, the body will be parked in the morgue within a few hours, it is entirely possible that the person is not really to the degree of "death", it is possible to achieve "back to life" through this technology.

Is not to see this experiment and conclusion, we feel incredible and thoughtful. Of course, for many other scientists, this technology is also questioned, saying that it may lead to human "ethical" controversy about death. There are several main reasons for this.

First, can this technology really "bring back" an organism from the dead? On the surface, it appears that the experiments were carried out on the basis that the organs and tissues were no longer working a few hours after the death of the experimental pigs, and the results of the experiments do appear to be that the cells and organs were reactivated. However, the living organism contains not only the physiological functions of the body, but also the consciousness that sustains its social activities. Consciousness arises from the brain and has its roots in the various cells that make up the brain.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

However, these cells have certain physiological functions based on how to generate consciousness, so far there is no clear conclusion, which is the same as the objects that make up the cells are organic and inorganic substances, why these substances combined together to have biological activity the same reason, these two questions have been plagued by countless scientists.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

When the pig or the human organism that may later participate in the experiment dies, the cells in the brain have also died, which means that the consciousness also disappears. If they are revived, will the original consciousness come back even if the cells and organs are working again? If the consciousness comes back, is it still the same? These are questions that I think are difficult to answer clearly.

Secondly, is there any pain in the process of "resurrection" of the living being? During the experiments conducted by American scientists, almost all pigs made strong reactive movements of the head and neck, but at the same time no electrical activity in the pig's brain was monitored, which leads to two conclusions: one is that the pig did not regain consciousness during the resurrection process, and the second is that even if the electrical activity in the pig's brain could not be monitored, the pig's consciousness experience could continue, but it would not be be monitored by us.

U.S. scientists resurrect vital organs of dead pigs, and the pigs "come back from the dead"! Is it still the same pig?

After ruling out the possibility that the researchers caused physical changes in the pigs during manipulation, the researchers raised the alternative speculation that the technique, which may have actually caused pain in the subject pigs, drove a violent response in the pigs' bodies with brain wave activity that was not monitored by current technology. So, if this technology were applied to the resurrection of a human, would it save him or deepen his suffering?

Dear readers, what do you think about the experiment of "resurrecting" dead pigs conducted by American scientists?