Can the brain be transplanted? Can humans have a brain transplant?

The human nervous system is composed of nerve centers at all levels of the cerebral cortex, primary centers at all levels of the spinal cord, and nerve fibers that connect nerve cells, nerve cells, effectors, and receptors. Like the circuit network on any machine, the human nervous system also spreads throughout the body with extremely complex network circuits, and in countless intricate networks, the brain (cortex) plays the role of the highest center: on the one hand, the brain analyzes and synthesizes information from all levels of the center to form a specific feeling; On the other hand, the brain (cortex) constantly sends out various instructions for the body to perform various actions.

It has been confirmed that due to the existence of the blood-brain barrier, lymphocytes, which are the key to rejection, cannot penetrate the central nervous system, that is, the transplantation of brain tissue does not cause rejection. Therefore, as long as the blood of the brain is satisfied, the transplanted brain can survive, which has been fully achieved by modern medicine.

However, in order to restore the transplanted brain to its primary function of dominating another body at will, the current human technical power is far from reaching this: modern medicine is simply unable to re-establish countless intricate neural network connections between the transplanted brain and another body, and correspondingly, the transplanted brain cannot recover its main function at all, and from this point of view, human whole-brain transplantation is currently impossible!

Can the brain and memory be transplanted?

It seems that the brain cannot be transplanted because there are many cortices and nerves in the brain, and if a brain transplant can be performed, it is likely that the surgery will fail.

Brain transplantation requires a very delicate operation and uses many, many advanced technologies. There is no way to achieve eternal life now.

It relies on miniature diagnostic technology, and Ren can't really live forever. This transplant is only a transplant of the backbone of your brain that stores information, and it is not a true immortality or resurrection.

I don't know. I don't think so. This violates the basic laws of biological development and has no scientific basis.

Can the brain and memory be transplanted?

In the spring of 1994, there was a serious car accident in Switzerland, and a couple who were in love were taken to the hospital with their lives. Doctors found that the man's limbs and torso were blurred and fragmented, while his head was intact; Women, on the other hand, had their heads shattered and cracked, and their bodies intact. One of the doctors present suddenly spoke

The two of them are put together and just regrouped into one person. Why don't we do a brain transplant? "It's a brilliant idea.

After the hospital quickly obtained the consent of the family, the operation was carried out immediately, and it was quite successful. When the "patient" gradually woke up, the doctors were so excited that they burst into tears and hugged tightly. They are sure that this will leave a glorious page in the history of human medicine.

They even gave this "newcomer" a beautiful name "Vicia". This is the latest successful head replacement surgery.

Nowadays, many hospitals in the United States have begun to commercialize this technology, that is, to market "frozen brain regeneration" - there is still no great certainty of success in head replacement surgery, so the best way is to cryopreserve the deceased's head and wait until the time is ripe for surgery. It is said that this business is not doing well, and even some celebrities are "enthusiastically buying". Elizabeth Taylor, a world-famous "Hollywood actress," recently signed a contract with the same medical center and paid $350,000 in advance for the "contract fee."

She asked the center to cut off her head as soon as she was diagnosed dead, and to freeze it immediately. At that time, her brain cells will be extracted and injected into the head of a lively, lovely, beautiful and cute baby girl. This dazzling superstar in the world film industry to this day is eager to create a new Elizabeth Taylor with this.

Brain transplantation has two meanings: one is the transplantation of brain tissue, and the other is the transplantation of the whole brain.

These experiments are theoretically possible, but they have never been tested on humans. Because there is a great deal of moral controversy about brain transplants, in the case of heart transplants, some patients have changed interests after the transplant or claim to have memories of another person.

In Western countries, the use of stillborn or stillborn brain tissue for Parkinson's disease or Alzheimer's disease has been used, but there are many people who oppose this surgery. ）

In terms of brain transplantation experiments, medical scientists have conducted experiments with healthy adult Taihang Mountain monkeys, and the results found that the recipients behaved normally, and the results of body temperature tests were not significantly different from those before surgery. A comparative study was conducted on the cortical implantation method of fetal brain tissue and the delayed implantation method of fetal brain tissue cerebral cortex in rat with Willis, and the results showed that there was no significant difference in the survival of grafts between the two groups. It has been reported that no surviving grafts were found on histological examination after 6 months of observation after substantia nigra transplantation into a Parkinson's disease model in monkey fetuses.

Studies have also shown that there may be a problem with the timing of implantation of brain tissue. It may also be due to good histocompatibility between the donor and the recipient and low recipient immunity. In short, this is an uncertain proposition in the medical community.

As for how long you can live after a brain transplant, of course, it is an uncertain answer at the moment, which is similar to many questions in life, and perhaps the answer is in the near future. Life is a process of exploration.