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Scientists Turn Back The Clock On Aging

kamrananvaar

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It’s mind bending. Scientists believe it is now possible to wind back the biological clock. Aging would not only stop. It would reverse.

Last month, researchers at the Salk Institute in La Jolla, California published a ground breaking study in the medical journal, Cell. Using genetic modification, Juan Carlos Izpisua Belmonte, Alejandro Ocampo and other Salk scientists were able to rejuvenate the organs of laboratory mice and increase their lifespan significantly. The process is still not easily transferable to people. Yet, the possibility is breathtaking. Humans are on the precipice of decoupling cell and organ degeneration from aging. Discovering the fountain of youth.



The research community is excited. Dr. Leonard Guarente, Novartis Professor of Biology and an aging specialist at M.I.T., told The New York Times: “This is huge. It’s a pretty remarkable finding, and if it holds up it could be quite important in the history of aging research.”


For more than 10 years that research has been influenced by Nobel Prize winning biologist Shinya Yamanaka. He identified genes that could reset cells all the way back to their embryotic state.

The Times reports the Salk researchers took a partial approach. They reasoned “a small dose of the Yamanaka factors might rejuvenate cells without the total reprogramming that converts cells to the embryonic state.”

Instead, they chose partial reprogramming. The goal was to rejuvenate the cells while maintaining identity.

In the first tests, mice with premature aging saw longevity increase by about 30% over untreated mice. Secondary tests of skin cells showed rejuvenation but still remained recognizable as skin cells. Finally, tests on healthy mice showed organ rejuvenation and improved muscle generation versus the test group.

“Obviously, mice are not humans and we know it will be much more complex to rejuvenate a person,” said Professor Izpisua Belmonte in the Salk Institute news release. But this study shows that aging is a very dynamic and plastic process, and therefore will be more amenable to therapeutic interventions than what we previously thought.”

The investment angle is abstruse. Many of the companies working on genetic clock are either private or very small. Moreover, the science is still far away from even human trials. But it's important for investors to consider that there might be fewer people dying in the future, which has important public policy and consumer implications.

One big-cap play is Alphabet (GOOGL), which has a unit devoted to extending human life, Calico. However, the company approaches aging from the other end of the spectrum. Most of the focus is on cancer and age-related diseases.
 

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