China's first human body to complete the frozen, "resurrection" how far away from us?
According to media reports, in early May, China carried out the first human body frozen operation.
49-year-old cancer patients after the death of her husband, her body was Shandong Yinfeng Biological Engineering Group and Shandong University Qilu hospital clinical staff program cooling, and ultimately frozen with liquid nitrogen.
Gui Junmin is the husband of the exhibition, and he expects his wife to wake up someday. He himself also wants to join the human life freeze experiment called "Life Continuity Plan".
Chinese Academy of Sciences Institute of Physics and Chemistry researcher, low temperature biomedical engineering Beijing Key Laboratory Director Liu Jing told surging news, the human body is the ultimate goal of cryopreservation, but the current human body is still frozen A business act or attempt: only responsible for "freezing", not responsible for "resurrection".
The staff in the finishing liquid nitrogen tank, the embryo stored in the liquid nitrogen tank frozen. Visual map of China
Chinese Academy of Sciences Zhu Zuoyan told surging news, as far as he knows, in addition to the successful freezing of cells or very early embryos, frozen fruit flies, fish and other experimental animals, have not heard of success precedent.
Liu Jing believes that the current phase of the body frozen more close to a body to save the service. It is optimistic that, with the advent of new technologies in the future, breaking the technical problems of human freezing, it is not impossible to achieve recovery, survival, but requires arduous and innovative scientific expeditions. If you overcome this technical problem, will be one of the most important breakthroughs in science and technology. Mankind will therefore break the age limit, to achieve interstellar travel; and "arbitrarily switch the life process", used in the youth and the fight against disease and so on.
It is extremely difficult to keep frozen tissue or organ
Liu Jing said that low temperature is a "double-edged sword", it can protect the living body, you can destroy the body.
According to Liu Jing, the use of modern cryopreservation technology, people have successfully frozen a lot of types of cells, such as fibroblasts, adipocytes, tumor cells, stem cells, and sperm and oocytes.
Liquid nitrogen is the most commonly used cryopreservation process in the process of cryopreservation. Under the protection of toxic organic solvents, cells can be preserved for a long time.
But the survival rate of resuscitation, depending on the cells.
Much concern about the frozen egg technology, frozen is the female germ cells - oocytes. After cryopreservation, the cell recovery success rate is even lower than 50%.
Liu Jing said that one of the reasons may be that the size of oocytes is much larger than other ordinary cells.
In addition to cells, people in the skin, cornea, liver, kidney and other complex tissues and organs of the short-term preservation has also made some progress, but long-term preservation technology to be further breakthrough.
Liu Jing explained that the volume of some of the larger organizations or organs, cryopreservation is still more difficult. The reason is that the larger volume, the coolant is difficult to quickly and evenly into the organization or inside the organ, in the cooling or warming, the organ internal and external temperature difference, so inconsistent contraction, stress, may cause tear trauma; the same time, Cells or cells are easy to form ice crystals, ice nuclei; in the recovery, the existence of ice nuclei and easily lead to recrystallization, puncture cells, resulting in irreversible damage; in the double damage, the organization or organ preservation is extremely difficult.
Public Hospital of Xuzhou Medical University, a hospital in the United States, a top transplant center for many years, and participate in organ preservation of the doctor also told surging news, the current long-term preservation of human organs, but not the human body! He believes that the current level of technology, the human body in the liquid nitrogen and then resurrection is almost impossible.
Small animal freezing and recovery experiments often ended in failure
Liu Jing believes that the real scientific and rigorous research method is to start from the isolated organs, small animals, large animal freezing and recovery research, the accumulation of experimental data, accumulation of cryopreservation and recovery experience, analysis of cryopreservation mechanism, found suitable The frozen liquid of the organism.
More than a decade ago, Liu Jing led the research group began in the ants and small animals who try to cry and recovery. He admitted that the experiment often ended in failure: nude mice died during the cryopreservation, the ants did not survive after the recovery.
Changes appear in the researchers to feed the polysaccharide low temperature protectant to the ants, and then the implementation of cryopreservation, a small amount of ants to survive the recovery.
He led the research team to try to use nano-materials to act as a "shield" to protect the body from low temperature damage. He also will be low-temperature refrigeration technology and high temperature technology combined to develop into a minimally invasive tumor treatment equipment, has been used in clinical.
Liu Jing said that Yinfeng Biological Engineering Group and other institutions of this operation is a brave attempt to have its positive significance. If it is carried out in-depth and detailed human tissue cryopreservation assessment, access to valuable test data, is undoubtedly very valuable. But the injury assessment may be opposed by the patient's family.
49-year-old cancer patients after the death of her husband, her body was Shandong Yinfeng Biological Engineering Group and Shandong University Qilu hospital clinical staff program cooling, and ultimately frozen with liquid nitrogen.
Gui Junmin is the husband of the exhibition, and he expects his wife to wake up someday. He himself also wants to join the human life freeze experiment called "Life Continuity Plan".
Chinese Academy of Sciences Institute of Physics and Chemistry researcher, low temperature biomedical engineering Beijing Key Laboratory Director Liu Jing told surging news, the human body is the ultimate goal of cryopreservation, but the current human body is still frozen A business act or attempt: only responsible for "freezing", not responsible for "resurrection".
The staff in the finishing liquid nitrogen tank, the embryo stored in the liquid nitrogen tank frozen. Visual map of China
Chinese Academy of Sciences Zhu Zuoyan told surging news, as far as he knows, in addition to the successful freezing of cells or very early embryos, frozen fruit flies, fish and other experimental animals, have not heard of success precedent.
Liu Jing believes that the current phase of the body frozen more close to a body to save the service. It is optimistic that, with the advent of new technologies in the future, breaking the technical problems of human freezing, it is not impossible to achieve recovery, survival, but requires arduous and innovative scientific expeditions. If you overcome this technical problem, will be one of the most important breakthroughs in science and technology. Mankind will therefore break the age limit, to achieve interstellar travel; and "arbitrarily switch the life process", used in the youth and the fight against disease and so on.
It is extremely difficult to keep frozen tissue or organ
Liu Jing said that low temperature is a "double-edged sword", it can protect the living body, you can destroy the body.
According to Liu Jing, the use of modern cryopreservation technology, people have successfully frozen a lot of types of cells, such as fibroblasts, adipocytes, tumor cells, stem cells, and sperm and oocytes.
Liquid nitrogen is the most commonly used cryopreservation process in the process of cryopreservation. Under the protection of toxic organic solvents, cells can be preserved for a long time.
But the survival rate of resuscitation, depending on the cells.
Much concern about the frozen egg technology, frozen is the female germ cells - oocytes. After cryopreservation, the cell recovery success rate is even lower than 50%.
Liu Jing said that one of the reasons may be that the size of oocytes is much larger than other ordinary cells.
In addition to cells, people in the skin, cornea, liver, kidney and other complex tissues and organs of the short-term preservation has also made some progress, but long-term preservation technology to be further breakthrough.
Liu Jing explained that the volume of some of the larger organizations or organs, cryopreservation is still more difficult. The reason is that the larger volume, the coolant is difficult to quickly and evenly into the organization or inside the organ, in the cooling or warming, the organ internal and external temperature difference, so inconsistent contraction, stress, may cause tear trauma; the same time, Cells or cells are easy to form ice crystals, ice nuclei; in the recovery, the existence of ice nuclei and easily lead to recrystallization, puncture cells, resulting in irreversible damage; in the double damage, the organization or organ preservation is extremely difficult.
Public Hospital of Xuzhou Medical University, a hospital in the United States, a top transplant center for many years, and participate in organ preservation of the doctor also told surging news, the current long-term preservation of human organs, but not the human body! He believes that the current level of technology, the human body in the liquid nitrogen and then resurrection is almost impossible.
Small animal freezing and recovery experiments often ended in failure
Liu Jing believes that the real scientific and rigorous research method is to start from the isolated organs, small animals, large animal freezing and recovery research, the accumulation of experimental data, accumulation of cryopreservation and recovery experience, analysis of cryopreservation mechanism, found suitable The frozen liquid of the organism.
More than a decade ago, Liu Jing led the research group began in the ants and small animals who try to cry and recovery. He admitted that the experiment often ended in failure: nude mice died during the cryopreservation, the ants did not survive after the recovery.
Changes appear in the researchers to feed the polysaccharide low temperature protectant to the ants, and then the implementation of cryopreservation, a small amount of ants to survive the recovery.
He led the research team to try to use nano-materials to act as a "shield" to protect the body from low temperature damage. He also will be low-temperature refrigeration technology and high temperature technology combined to develop into a minimally invasive tumor treatment equipment, has been used in clinical.
Liu Jing said that Yinfeng Biological Engineering Group and other institutions of this operation is a brave attempt to have its positive significance. If it is carried out in-depth and detailed human tissue cryopreservation assessment, access to valuable test data, is undoubtedly very valuable. But the injury assessment may be opposed by the patient's family.
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