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Illegal Beings: Human Clones

New engineering-based model of aging

SC ( 11/18/2004, 16:32:41 )

There's a recent article comparing the way humans and machines age:http://www.spectrum.ieee.org/WEBONLY/publicfeature/sep04/0904age.htmlThe possible applications of cloning and stem cell research are discussed at the end. Cloning works by reprogramming a cell so that it starts its life over again; it does reverse aging at the cellular level. TriStem's techniques supposedly make cells young again too; I've posted several links about them farther down the page.We don't yet know how aging works and what causes it; replacing old parts of a system may not fix the whole system. There are probably several genes that play a part in aging. There is one called the Nanog gene that is supposed to be turned off as we get older, which governs the capacity of cells to renew themselves. I've posted a link on it before, but it's probably buried a few pages deep by now. I've also posted links on the work being done to extend the lifespans of worms (one researcher has them living up to six times their original lifespan), and microbes beneath the sea that may be millions of years old. At the cellular level, making something immortal or nearly so isn't that difficult; it's tougher with complex animals.New Scientist just had an article saying that the previous record for the longest-lived animal (175 years for a turtle) has probably been surpassed by a whale. Harpoon hooks were found in one whale that dated back to the 1800s.

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