Brain cells are non renewable, so what if they run out?

Don't worry about the landlord :)

American scientists reported in the latest issue of the British journal Nature that they succeeded in developing dry cells into cranial nerve cells by activating dry cells deep in the cerebral cortex of laboratory rats, replacing damaged cranial nerve cells. This is the first time that the scientific community has discovered that mammalian brain cells can repair themselves.

Jeff, a scientist at Harvard Medical School in the United States. This new work by McClis et al. is considered a new breakthrough in the study of nerve cell biology. If we understand the mechanism and control this process, it is possible to find new ways for various brain injury diseases.

Of course, this achievement is still far from clinical application.

Previously, the scientific community has believed that the mammalian brain is too complex, and its brain cells cannot be repaired after lesions, damage or death, so at present, ** encephalopathy mainly relies on in vitro cultivation of brain cells and then transplantation to the brain. Until recently, it was thought that dry cells, which were very active in the fetal stage, no longer existed in the adult brain. However, recent studies have found that such immature brain cells exist in the forebrain of marrows, and in specific areas of the cerebral cortex, dry cells can develop into mature cranial nerve cells.

McClis et al. suggest that in the adult mammalian brain, although the function of controlling the development of stem cells into nerve cells during the fetal period is inhibited, this skill should also be present in the DNA code. If this function is reactivated, brain cells can repair themselves. They managed to make part of the cells of the cerebral cortex of the rats die naturally and activate the dry cells.

It was found that the dry cells began to proliferate and gradually developed into cranial nerve cells, and their axons were connected to other cells, completely replacing the dead cranial nerve cells.

According to Xinhua News Agency).

is non-renewable. There are many brain cells in the human body, but only a few can be used.

Don't worry about running out.

Of course, they are renewable, and some nerve cells are extremely long-lived, so don't worry.

The BU part can be regenerated.

What the teacher said. He holds a double doctorate degree in Chinese and Western medicine.

Brain cells are constantly dying and producing.

Why can't human nerve cells regenerate? It is not that neurons themselves cannot be regenerated (e.g., axonal terminals can be reformed if they are broken), nor that there are no neural stem cells, and that neural stem cells are not only found in the hippocampus, but also in the whole brain [1], but the main problem is that the connections between neurons are difficult to regenerate in their original state. Under the premise that a large number of neuron-destroying factors such as neurodegenerative diseases cannot be stopped, or under the premise that a large number of important neurons are collectively damaged, the generation of new neurons from stem cells and the synaptic regeneration of neurons on neurons may instead be a contributing factor to the aggravation of motor paresthesia and memory loss [2][3].

In the case of neurodegenerative diseases, synaptic regeneration and neuronal regeneration are not only a drop in the bucket compared to a large number of synaptic losses and neuronal apoptosis, but also synaptic regeneration and neuronal regeneration themselves will be inhibited by the molecular mechanisms related to abnormal aggregation proteins, which cannot solve the abnormal aggregation proteins and cannot reverse this process.

The reason why human nerve cells cannot be regenerated is that if a human cell nerve cell is a human cell, it has certain limitations, and its cell is to a certain extent, it will not give birth to new cells, because nerve cells are different from other cells, nerve cells can only be little by little to a certain extent, he will decline little by little, he will not give birth to new ones, this is a human cell, why can't it give other animals and plants all aspects of the balance, in fact, it is here.

This is mainly because the connections between neurons are difficult to regenerate as they are.

Under the premise that a large number of neuron-destroying factors such as neurodegenerative diseases cannot be stopped, or under the premise that a large number of important neurons are collectively damaged, the generation of new neurons from stem cells and the synaptic regeneration of neurons may become a contributing factor to the aggravation of motor paresthesia and memory loss.

In the case of neurodegenerative diseases, synaptic regeneration and neuronal regeneration are not only a drop in the bucket compared to a large number of synaptic losses and neuronal apoptosis, but also synaptic regeneration and neuronal regeneration themselves will be inhibited by the molecular mechanisms related to abnormal aggregation proteins, which cannot solve the abnormal aggregation proteins and cannot reverse this process.

Human nerve cells cannot be regenerated because human nerves need to be constant. If the man's magic bag is destroyed, it will bring more damage to the nerves of the human body. As a result, human nerve cells cannot regenerate.

This is the reason why human nerve cells cannot be regenerated, that is, a person's nerve cells are limited, and it cannot develop rapidly like other reproductive animals, because a person's reproductive cells are limited, because we are higher animals, we are not like those pests and small lower animals, so our human brain cells and cells in all aspects are completely incomparable to other plants and animals.

Nerve cells cannot regenerate because they are highly differentiated and are basically difficult to rise.

This thing is actually determined by genes, of course, if you think more, it may be because the creator doesn't want humans to live forever, after all, if medicine develops any organ can be replaced, then the brain can't be replaced, then it will become another individual.

The reason why nerve cells in the brain cannot regenerate is because the nervous system has a large number of neurons, and the connections between neurons are that they are in contact with each other, and if the injury is severe, it will cause irreparable damage.

Because the reason why human nerve cells cannot be regenerated is that it determines how many nerve cells there are in our body at the beginning, and if you reduce or can break them at any time, you can't remedy them, and you regenerate them again. Or. One more time there are embryonic cells.

After the human body's mental cells are killed, they are unable to regenerate because they have been. The cells are dead and there is no way to regenerate.

May regenerate. It's just that the growth is relatively slow, and generally after the amputated limb is re-operated, the nerve cells begin to grow, about one or two millimeters a day, and the growth rate is extremely slow. If it can't grow, then it becomes impossible to reconnect the severed limb.

Nerve cells cannot regenerate was a misconception in medicine 20 years ago, but now it is found that stem cells are everywhere, and among them are neural stem cells, which can regenerate nerve cells.

Neuronal cells cannot be regenerated because neuronal cells are permanent cells, so once a neuronal cell dies, it cannot regenerate.

Of course, if you think more, it may be because the creator does not want human beings to live forever, after all, if medicine develops any organ can be replaced, it is impossible for differentiated cells to go back, that is, to return to undifferentiated cells. Stem cells are not present in human nerve tissue.

Human nerve cells, in fact, are a process of continuous regeneration, so in the nerve cells themselves can be constantly regenerated, but the cycle of his replacement will be relatively long.

Because human nerve cells can no longer continue to differentiate, they do not have the conditions for regeneration.

So what about the inability of human nerve cells to regenerate? That's just saying that human nerve cells are renewing too quickly, and the reason why human nerve cells can't regenerate, so why is there no need to regenerate? Because the cell is always in a state of renewal, it is metabolized, so it is not necessary to regenerate.

Human nerve cells can't regenerate because people are constantly using the brain to kill cells faster than they can regenerate.

Do brain cells really die? Do brain cells regenerate after death? Is it good to use your brain regularly?