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Michelle RobertsDigital Health Editor, BBC NEWS
Is it possible to become immortal with the help of organs? It was an unexpected topic of discussion this week between China’s President Xi Jinping and Russian President Vladimir Putin when they met at the Beijing military parade.
The translator, speaking in Mandarin on behalf of Putin, told the XI how human organs can be repeatedly transplanted “to be younger and younger, despite the age, and even be able to avoid old age.
“It is projected that up to 150 may become possible in this century,” he added.
Their smiles and laughter suggest that it was a little banter, but can they something?
Bodies’ transplantation certainly saves life – more than 100,000 people have been rescued in the UK over the last 30 years, NHS blood and transplant have been rescued.
And the constant achievements in the field of medicine and technology medium transplanted organs lasts much longer in people.
Some patients had a kidney transplant that continued to work for over 50 years.
The life of the organ depends on how healthy the donor and the recipient are – plus how well they look after it.
For example, if you had a new kidney from a live donor, you can expect it to last from 20 to 25 years.
If you get it from the dead donor, it is reduced to 15 to 20 years.
The type of organs also matters.
The liver can last about 20 years, the heart of 15 years and the lungs nearly 10 years, According to research.
Putin and si can talk about the transplant of several organs and possibly repeatedly.
Having surgery is a great task with significant risks. Whenever you go under the knife, you roll the bones.
Currently, people who receive a new organ should also take strong anti -recycled drugs called immunosupressants for life. They may have side effects such as high blood pressure and increase the risk of infection.
Refusal – When your immune system begins to attack the transplanted organ because it recognizes it as comes from another person – sometimes it can happen even if you take the medicine.
Scientists are working to produce without deviation of organs, using genetically changing pigs as donors.
They use a gene editing tool that knows both Crispr to remove some pig genes and add certain human genes to make the organ more compatible.
Special pigs are ideal for this, experts say because their organs are approximately for humans.
Science is still extremely experimental but Heart and kidney The operation went forward.
Two men who agreed to do the procedures were the pioneers of this new field of transplant medicine.
Since then, both have died, but helped to promote xenotransplantation – a transplant of live cells, tissues or organs from one species to another.
Another avenue studied is a growing new organs using our own human cells.
The stem cells have the ability to grow into any type of cells or tissues that are in the body.
No research team has yet been able to do fully functional, transplanting human bodies, but scientists are approaching.
In December 2020, UCL researchers and the Francis Creek Institute restored the human thymus – the main organ in the immune system – using human and bioenginery stem cells.
When transplanting in mice, it worked as a test.
And scientists at the Hospital of the Great Ormond in London say they have grown intestinal transplants of the person, using stem cells from the tissue of patients who can once lead to personalized transplantation for children with intestinal failure.
But these successes are the treatment of poor health, not the preservation of people up to 150.
Meanwhile, Tech Brian Johnson Entrepreneur spends millions a year trying to reduce his biological age.
As far as we know, he has not yet tried to get new bodies – but imbued with the plasma of his 17 -year -old son.
Since then, he has stopped this without seeing any benefits and increased medical control by organizations such as food and medicines.
D -R Julian MuTZ from London King King said that outside the transplantation of the organs, approaches such as plasma replacement, but they remain experimental.
“Whether such strategies will have a significant impact on life expectancy, especially the maximum life of man, remains uncertain, although this area of ​​considerable scientific interest.”
Professor Neil Mabbot, an immunopathology expert at the Roslin Institute, the University of Edinburgh, believes that life up to 125 can become the upper border.
“A proven old alive man was a French woman Jeanne Caliment, who lived 122, between 1875 and 1997,” he said BBC News.
And while damaged and sick organs can be replaced by transplants, as we age, our bodies become much less elastic or capable of handing physical stress.
“We begin to respond less effectively to infections, and our bodies become more weak, prone to injuries and are less able to restore and repair.
“Stress, trauma and impact of transplant surgery, as well as the further use of the immunosuppressive drugs required to prevent the abandonment of transplanted organs will be too serious in patients of this elderly.”
He says that instead of focusing on expanding life, we must instead strive for healthy years.
Professor Mabbot said: “Life is much longer, but suffering from many diseases that can accompany aging, and in the hospital for other tissues transplantation do not sound attractive in retirement!”