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80% Reduction in Ageing in Mice (Epigenetic Reset)
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80% Reduction in Ageing in Mice (Epigenetic Reset)
80% Reduction in Ageing in Mice (Epigenetic Reset)
https://www.cell.com/cell/fulltext/S0092-8674(22)01570-7
The combined experiments, published for the first time Thursday in the journal Cell, challenge the scientific belief aging is the result of genetic mutations that undermine our DNA, creating a junkyard of damaged cellular tissue that can lead to deterioration, disease and death.
“It’s not junk, it’s not damage that causes us to get old,” said Sinclair, who described the work last year at Life Itself, a health and wellness event presented in partnership with CNN.
“We believe it’s a loss of information — a loss in the cell’s ability to read its original DNA so it forgets how to function — in much the same way an old computer may develop corrupted software. I call it the information theory of aging.”
Jae-Hyun Yang, a genetics research fellow in the Sinclair Lab who coauthored the paper, said he expects the findings “will transform the way we view the process of aging and the way we approach the treatment of diseases associated with aging.”
Epigenetic changes control aging
While DNA can be viewed as the body’s hardware, the epigenome is the software. Epigenes are proteins and chemicals that sit like freckles on each gene, waiting to tell the gene “what to do, where to do it, and when to do it,” according to the National Human Genome Research Institute.
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The epigenome literally turns genes on and off. That process can be triggered by pollution, environmental toxins and human behaviors such as smoking, eating an inflammatory diet or suffering a chronic lack of sleep. And just like a computer, the cellular process becomes corrupted as more DNA is broken or damaged, Sinclair said.
“The cell panics, and proteins that normally would control the genes get distracted by having to go and repair the DNA,” he explained. “Then they don’t all find their way back to where they started, so over time it’s like a Ping-Pong match, where the balls end up all over the floor.”
These mice are from the same litter. The one at right has been genetically altered to be old.
In other words, the cellular pieces lose their way home, much like a person with Alzheimer’s.
“The astonishing finding is that there’s a backup copy of the software in the body that you can reset,” Sinclair said. “We’re showing why that software gets corrupted and how we can reboot the system by tapping into a reset switch that restores the cell’s ability to read the genome correctly again, as if it was young.”
It doesn’t matter if the body is 50 or 75, healthy or wracked with disease, Sinclair said. Once that process has been triggered, “the body will then remember how to regenerate and will be young again, even if you’re already old and have an illness. Now, what that software is, we don’t know yet. At this point, we just know that we can flip the switch.”
https://www.cell.com/cell/fulltext/S0092-8674(22)01570-7
The combined experiments, published for the first time Thursday in the journal Cell, challenge the scientific belief aging is the result of genetic mutations that undermine our DNA, creating a junkyard of damaged cellular tissue that can lead to deterioration, disease and death.
“It’s not junk, it’s not damage that causes us to get old,” said Sinclair, who described the work last year at Life Itself, a health and wellness event presented in partnership with CNN.
“We believe it’s a loss of information — a loss in the cell’s ability to read its original DNA so it forgets how to function — in much the same way an old computer may develop corrupted software. I call it the information theory of aging.”
Jae-Hyun Yang, a genetics research fellow in the Sinclair Lab who coauthored the paper, said he expects the findings “will transform the way we view the process of aging and the way we approach the treatment of diseases associated with aging.”
Epigenetic changes control aging
While DNA can be viewed as the body’s hardware, the epigenome is the software. Epigenes are proteins and chemicals that sit like freckles on each gene, waiting to tell the gene “what to do, where to do it, and when to do it,” according to the National Human Genome Research Institute.
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The epigenome literally turns genes on and off. That process can be triggered by pollution, environmental toxins and human behaviors such as smoking, eating an inflammatory diet or suffering a chronic lack of sleep. And just like a computer, the cellular process becomes corrupted as more DNA is broken or damaged, Sinclair said.
“The cell panics, and proteins that normally would control the genes get distracted by having to go and repair the DNA,” he explained. “Then they don’t all find their way back to where they started, so over time it’s like a Ping-Pong match, where the balls end up all over the floor.”
These mice are from the same litter. The one at right has been genetically altered to be old.
In other words, the cellular pieces lose their way home, much like a person with Alzheimer’s.
“The astonishing finding is that there’s a backup copy of the software in the body that you can reset,” Sinclair said. “We’re showing why that software gets corrupted and how we can reboot the system by tapping into a reset switch that restores the cell’s ability to read the genome correctly again, as if it was young.”
It doesn’t matter if the body is 50 or 75, healthy or wracked with disease, Sinclair said. Once that process has been triggered, “the body will then remember how to regenerate and will be young again, even if you’re already old and have an illness. Now, what that software is, we don’t know yet. At this point, we just know that we can flip the switch.”
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Re: 80% Reduction in Ageing in Mice (Epigenetic Reset)
I wonder if you lived on the international space station with purified air and no toxins and ate healthy food grown on the station with no pesticides etc then maybe our genes would be in better working condition. This reminds me of an old movie called "silent running" with actor bruce dern. Big garden pods out in space with cool little droids hewie, dewie and lewie looking after the plants. It had a sad ending tho.
shaftless- Posts : 1343
Join date : 2012-08-12
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