See also Smithsonian's doc "Decoding Immortality"
http://tinyurl.com/
"The Fountain of Youth may have just been discovered, not in a Florida spring, but in a murky Australian pond. Far from myth, the findings of Nobel Prize-winning scientist Elizabeth Blackburn, an enzyme that can keep cells young, may just prove to be the key to immortality. Join us as we track Blackburn and molecular biologist Carol Greider's decades-long journey to fully understand this enzyme, which is both amazing and paradoxical, for while it may prove to be an elixir of endless life, it also has the power to kill."
According to the "Lobsters Never Age" article, lobsters -- which live to be 140 years old and more and don't seem to age physically -- MAY HOLD KEY TO PHYSICAL IMMORTALITY... due to their continual production of TELOMERASE, an enzyme which protects the telomeres found at the end of all chromosomes from deteriorating.
"Lobsters never age, they just grow. Their bodies don’t become frailer in time, they don’t need more and more medicine to keep their hearts going and they don’t even lose their sexual potency. In fact, the older a lobster, the more fertile it becomes.
"The secret to these oceanic Dorian Grays is an enzyme by the name of telomerase. Telomerase affects telomeres, which are found on the end of all chromosomes and protect these chromosomes from deterioration. However, each time a cell divides, its telomeres are shortened. Eventually, the telomeres become too short to protect the chromosomes and cells begin to lose their ability to divide (known as the Hayflick Limit).
"Telomerase acts as a sort of add-on, restoring length to telomeres and thus enabling them to continue protecting the cell. In most animals (including humans), telomerase production rapidly declines with age — hence, the whole dying part.
"Lobsters, however, don’t stop producing telomerase; in fact, while most animals show higher levels of telomerase in certain areas of their bodies, lobsters have the enzyme in abundance throughout their body. Couple that with the fact that lobsters shed and recreate their exoskeletons, and there’s nothing to stop a lobster from growing indefinitely.
See entire article here: http://tinyurl.com/
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