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Geneticists Claim Aging Breakthrough

Quirk writes "The Science section of The Guardian is reporting on recent experiments by geneticists 'to unlock the secrets of the aging process has created organisms that live six times their usual lifespan, raising hopes that it might be possible to slow ageing in humans.' 'In the experiment, Dr Longo's team took yeast cells and knocked out two key genes, named Sir2 and SCH9. The latter governs the cells' ability to convert nutrients into energy. They found that instead of dying after a week, the cells lived for up to six weeks.''Research has now begun to test whether the effect works in mice.' So it looks like we might soon have near immortal, fearless mice."

62 of 408 comments (clear)

  1. Hilander by Morky · · Score: 4, Funny

    I am Mickey McMouse of the clan McMouse, and I am immortal.

    1. Re:Hilander by hunterx11 · · Score: 5, Funny

      What's the sequence of the gene the prolongs life for you and me? CTGACTGCATC!

      --
      English is easier said than done.
    2. Re:Hilander by dgatwood · · Score: 5, Insightful
      I am Mickey McMouse of the clan McMouse, and I am immortal.

      The only thing that will last longer than I will is the copyright on my face.

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    3. Re:Hilander by zerocool^ · · Score: 2, Insightful


      Algernon called; he wants his science back.

      --
      sig?
    4. Re:Hilander by Quevar · · Score: 2, Funny

      I have a patent on that gene. You owe me money.

    5. Re:Hilander by corngrower · · Score: 5, Funny

      All those jokes about anti-aging discoveries never grow old, do they?

    6. Re:Hilander by hunterx11 · · Score: 2, Funny
      I thought of mentioning Cue "incomplete codon" jokes here..., but I guess I didn't think anyone would be enough of a dork to point it out.

      Then again, I was being pretty dorky in the first place.

      --
      English is easier said than done.
    7. Re:Hilander by Bingo+Foo · · Score: 2, Funny

      Up, Up, Down, Down, Left, Right, Left, Right, B, A, Select, Start

      --
      taken! (by Davidleeroth) Thanks Bingo Foo!
  2. We have that already by Chowser · · Score: 5, Informative

    We have cells already that are not governed by the normal life/death cell cycle. It's called CANCER. Cancer cells have autononmous growth and multiply indefinitely.

    --
    sig here
    1. Re:We have that already by iamplupp · · Score: 4, Informative

      You are over simplifying. For a normal cell to become a tumor cell all of the following mutations are required:

      * telomerase activity
      * insensitivity to apoptosis by either disrupting the proapoptotic signal pathway (Bax, P53, effector-caspase etc) increase the expression of antiapoptotic signals such as Bcl-2
      * growth factor independence (ie constitutively active Ras)
      * insentivitity to growth inhibitors
      * proangiogenetic mutations

    2. Re:We have that already by Chowser · · Score: 5, Insightful

      Yes I know, it was a purposeful oversimplification. My point was also showing that jumping from yeast cells to mice is overly optimistic at best, and that transferring such a mutation from a single cell organism to a mammal may lead to unforseen consequences.

      --
      sig here
    3. Re:We have that already by Anonymous Coward · · Score: 5, Informative

      Actually, jumping from yeast to mice is a fairly common thing to do in genetic research. I'm oversimplifying here as well, but the way genetic research often works is to start with a eukaryote model (yeast), then move to an animal model (like drosophila, or fruit flies), then a mammal model (mouse), before moving on to more complex mammals (with the ultimate goal being humans). Along the way, you might also pass through other species (one of my colleagues downstairs is all about sea urchins). Since each of these experiments can take a long time (though simpler organisms tend to be faster, which is why they're used), I suppose it would make sense to go straight from yeast to mice if you already know that these same genes are present.

      It's astonishing how much genetic material is shared going all the way back to yeast, and how much genetic research is transferable. Yeast is a eukaryote (so, while single-celled, they have a nuclei, unlike bacteria), and though it usually reproduces asexually, it can be made to undergo meiosis and bind half its genetic material with that of a "mate".

      Note: I am not a genetic researcher, but I work in the same research facility as some, and am encouraged to understand more or less what they do.

    4. Re:We have that already by chinodelosmuertos · · Score: 2, Interesting

      This is true. Now ask yourself why cells which undergo more frequent mitotic divisions are the ones that develop cancer more commonly: your colorectals, your prostates, your lungs (in smokers, where there's constant damage).... the more replications a cell does, the more your errors you are likely to accumulate. This includes, but is not limited to, the examples you mentioned above. Take a cell and extend its lifespan, allow the DNA damage to increase and the DNA mismatch repair to fail, and voila, instant neoplasm.

    5. Re:We have that already by caerus · · Score: 3, Insightful

      Well the foreseen consequences of not doing anything about aging are well known... getting frail, sick and dying.

      The Sirtuin genes are well established as a regulator of genes expressed near the ends of telomeres and there are many researchers studying its effects in mammals in fact there are pharmaceutical companies (Sirtris for instance) betting the pharm that, resveratrol, a component of red wine and activator of mammalian sir2 pathway, can be tweaked into a more powerful drug and help everyone live healthier longer.

      Whichever way you look at it... aging is going to be "oh so yesterday..." within the next few years. Baby boomers will soon get the message that we know enough to start really looking at the dysfunction that increases as we get older as "treatable" by attacking it at the root cellular processes which give rise to it. Now if only those people in the "pro-aging trance" could wake-up we'd there would really be an all out War on Aging and many of our parents and loved ones would be around longer not to mention the 250 billion dollars that would be saved not having to buy diapers for them. Seems the best solution to the rising costs of Medicare from an increasingly frail population that everyone is whining about is to maker sure they don't get frail in the first place.

      In fact..

      There's a research prize of THREE MILLION DOLLARS being offered to the scientist that beat the world record for the lifespan of a mouse using any technologies available.

      Mprize

    6. Re:We have that already by tongue · · Score: 2, Interesting

      this is hardly the case. telomerase, as it turns out, is already active past the embryonic stage of development, in exactly two cell types: spermatocytes, which give rise to sperm, and for the win, care to guess the other kind?

      Cancer cells.

      just having telomerase activity isn't something that's going to let us live forever. the key to long life for a cell is very different from that of long life for humans in general. in some cells, you really DON'T want them to live forever, because they'd never divide. Think scarring and skin. or your intestinal surfaces: food always scraping the sides away and never growing back? recipe for disaster.

      Short version: we need to get used to the idea of getting older and dying. immortality ain't in the cards anytime soon.

    7. Re:We have that already by Anonymous Coward · · Score: 2, Funny
      "they have a nuclei"

      You are a fucktards.

  3. i know when we will see these benefits by circletimessquare · · Score: 5, Funny

    i know exactly when these amazing age-related breakthroughs will come to fruition for humanity

    exactly at the age at which i am too old to partake of any of it

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
  4. It's gonna get.. by earthloop · · Score: 3, Interesting

    ..real crowded in the world if we're all immortal.

    1. Re:It's gonna get.. by wiggles · · Score: 4, Funny

      No problem. Just make sterilization a prerequisite for immortality.

    2. Re:It's gonna get.. by 19thNervousBreakdown · · Score: 4, Funny

      Not if I have anything to say about it.

      There can be only one.

      --
      <xml><I><am><so><damn>Web 2.0</damn></so></am></I></xml>
    3. Re:It's gonna get.. by Abcd1234 · · Score: 2, Insightful

      Well, given that most people in the world don't live their entire lifespan, instead dying from accidents, disease, heart failure, and any number of other ailments, we may find that 'immortality' isn't all it would at first appear.

  5. Fearless cancels out Immortal by intmainvoid · · Score: 2, Insightful

    Unfortunately being fearless is going to cancel out immortality pretty quickly, when the mouse isn't scared of humans, or their traps...

    1. Re:Fearless cancels out Immortal by Donut2099 · · Score: 2, Funny

      Don't forget that they can regenerate body parts, so the only way to kill them is to cut their head off. There can be only one...

    2. Re:Fearless cancels out Immortal by dmuth · · Score: 4, Funny

      At the rate of mice-related stories we've been getting on Slashdot lately, I'm getting worried that the next one is going to be how scientists found a way to make mice smarter.

      "What are we going to do tonight, Brain?"
      "Same thing we do every night, Pinky: try to take over the world!"

    3. Re:Fearless cancels out Immortal by intmainvoid · · Score: 2, Funny

      Perhaps it's been done and a new breed of super inteligent mice have taken over slashdot?

    4. Re:Fearless cancels out Immortal by meringuoid · · Score: 2, Funny
      Don't forget that they can regenerate body parts, so the only way to kill them is to cut their head off. There can be only one...

      Beheading doesn't work. They just regenerate the whole body.

      I've got two research projects going on concerning this issue, which will become a major problem in the not too distant future if geek pop culture has taught us anything at all. One involves the experimental use of fire and / or acid to prevent regeneration after the supermouse has been beaten down; the second option is more extreme, involving the simultaneous destruction of all the mouse's cells leaving nothing behind from which it can regenerate. This is the secret Project Kamehameha.

      --
      Real Daleks don't climb stairs - they level the building.
  6. Oh, great more old people by BobCat7 · · Score: 5, Funny

    At this rate I'm never gonna get to sit at the big table on Thanksgiving

  7. Yawn by ENOENT · · Score: 5, Funny

    Where we can get fearless, immortal, FLYING mice, then I'll be excited.

    Especially if they can also sing "Here I come to save the day."

    --
    That's "Mr. Soulless Automaton" to you, Bub.
  8. fantastic by Tumbleweed · · Score: 2, Funny

    This will give Brain time to take over the world!

  9. I don't see the point of extending life. by Spazntwich · · Score: 2, Insightful

    Unless breakthroughs like this can improve the quality of life, it's a neat but ultimately worthless advance. Humans already life way longer than the length of time they're useful to society, and if we suddenly have people living 6 times as long but still degrading by 70-90, we're just going to sink even more quickly.

    Now, humans living a few hundred years and staying able-bodied for most of it would be an incredible advance and would probably serve to benefit society, but... otherwise... I fear and do NOT welcome our new 400-year-old jello eating overlords.

    1. Re:I don't see the point of extending life. by RootsLINUX · · Score: 3, Funny

      So in other words, I should invest my money in retirement homes?

      --
      Hero of Allacrost, a FOSS RPG for *NIX/*BSD/OS X/Win
  10. I Know It's Overdone, But... by JohnPerkins · · Score: 2, Funny

    I for one welcome our fearless, near-immortal, rodent overlords.

    (that wouldn't be Frankie and Benjie mouse, by an chance, would it?)

  11. Hitch Hiker's Guide was right!?!?!? by RingDev · · Score: 3, Funny

    Fearless imortal mice?!? Maybe my "wanna see my spaceship" pick up line will start working again!

    -Rick

    --
    "Most people in the U.S. wouldn't know they live in a tyrannical state if it walked up and grabbed their junk." - MyFirs
  12. Moral Questions: by under_score · · Score: 2, Interesting

    If this works (eventually) with humans, who will get access to it? How will we justify the use of this when so many people die very young from preventable causes that are beyond their control (as opposed to simply not taking care of oneself)? How will we prevent the extreme accumulation of wealth that this would allow if it is not equally accessible to everyone?

  13. Mammals aren't exactly fungi by n0dalus · · Score: 2, Informative

    It's a huge jump to say that a single-celled fungi's life can be improved to saying it can also be done for a mammal with thousands of different kinds of cells and billions of cells in total. A lot of our physiology actually relies on cells having a short lifetime. I doubt those mice will even live one day.

  14. transhumanists miss the point by jimjamjoh · · Score: 2, Interesting

    without waxing too poetic, life isn't about accumulating more moments, it's about investing the ones we have with as much quality as possible. life is short, but beautiful on account...if we had lifespans that measured on the geologic scale (or any scale much beyond the one we have present), the individual choices we make become less and less meaningful. quality over quantity, as always...

    1. Re:transhumanists miss the point by truckaxle · · Score: 2, Insightful

      err can you define "quality". When you say "life is short, but beautiful on account" on whose or what account. To take your conclusion to the extreme the most beautiful and quality filled life would be those that a week live.

  15. Re:Wow.... by mcfuddlerucker · · Score: 3, Funny

    >> Our tax rates will be 80% of our income.

    So... stopping this aging gene also turns us into Swedes?

  16. Re:Apologies in advance, but... by joey_knisch · · Score: 2, Interesting

    The fear gene makes sure they stay alive.
    The aging gene makes sure they die eventually.

    If you turn both off you just get a dumb mouse that dies to stupidity instead of old age.

  17. Do not go gently into that goodnight.... by truckaxle · · Score: 4, Interesting

    Longevity will provide the next inflection point of human capacity and progress. Imagine if the great people of science could continue to contribute and innovate for the equivalent of several lifetimes. Gauss was the last mathematician who was said to be able to be conversant with the entire spectrum of mathematics. Currently it takes a human a decade to two just to be abreast of a specific field of science to be able to make any significant contributions. The period of time available to advance our understanding is getting shorter and shorter due to increase in the body of knowledge and our limited life times.

    I know there will be the crowd that says - but we were designed to die. That is bunk! Self aware intelligence is bound and destined to perpetuated and proliferate.

    1. Re:Do not go gently into that goodnight.... by monkease · · Score: 2, Informative

      The full text of your title (Do not go gentle...; a villanelle by Dylan Thomas) (italics added):

      Do not go gentle into that good night,
      Old age should burn and rave at close of day;
      Rage, rage against the dying of the light.

      Though wise men at their end know dark is right,
      Because their words had forked no lightning they
      Do not go gentle into that good night.


      Good men, the last wave by, crying how bright
      Their frail deeds might have danced in a green bay,
      Rage, rage against the dying of the light.

      Wild men who caught and sang the sun in flight,
      And learn, too late, they grieved it on its way,
      Do not go gentle into that good night.

      Grave men, near death, who see with blinding sight
      Blind eyes could blaze like meteors and be gay,
      Rage, rage against the dying of the light.

      And you, my father, there on that sad height,
      Curse, bless, me now with your fierce tears, I pray.
      Do not go gentle into that good night.
      Rage, rage against the dying of the light.

      ****
      I only italicized from the second & third stanza, but really the entire poem is saying "Those who have 'effed up their lives can't deal with death". This is one of the more misused poems, along with Frost's "The Road Not Taken" (& also, for songs, "Born in the USA" which I've seen in a very patriotic Chevvy commercial).

      I guess my point: your reference paints your comment, "I know there will be the crowd that says - but we were designed to die. That is bunk!" in a rather ironic light.

    2. Re:Do not go gently into that goodnight.... by TrevorB · · Score: 4, Insightful

      There's one argument against longevity I've not been able to properly argue against, it's effects on social evolution.

      A lot of social change can take place because old people (and more specifically, old people ideas) die. I'm sure many of us feel that our ideas are enlightened and superior to those of our ancestors, but when we're all pushing 70, we really shouldn't be the ones deciding the direction which society goes. In the year 2050, we're all going to be bitter crotchety old people, set in our ideas talking about these young kids and their crazy ideas. I'm concerned what living in that kind of world will be like. It might have a stagnation effect on a culture, with other "non-longevity" cultures overtaking our own.

      I'm still 100% for longevity, but it's not going to be great grandmas and grandpas riding roller blades down the sidewalk as healthy as they were when they were 40. There's going to be definate social change the kind the human race has never seen.

      Be sure of one more thing. Someone's going to make a FORTUNE if effective anti-aging drugs can be mass produced. Like, hundreds of billions of dollars, hand over fist.

    3. Re:Do not go gently into that goodnight.... by cgenman · · Score: 2, Insightful

      It isn't just the Ayatollah or Stalin, it is everyone. Even goodhearted people are wrong in some of their views. If you look at gay rights initiatives, the public's position is changing on them in almost exact proportion to the older population dying and the younger population being born. The same was true of civil rights. Or the number of people who believed in Newton's laws, etc.

      Additionally, people who have lived their entire lives with a technology internalize it in a way that the older generation just can't. They can take it and extend it out in radical new directions because to them it is basis for how they see the world, rather than an abberation. Companies in the UK are now offering textbooks by SMS, but my grandmother is still shocked whenever I pull out my cellphone. The older generation can contextualize it, but that isn't the same thing.

      Progress is made in a hearse.

  18. And soon our scientists will say... by teko_teko · · Score: 5, Funny

    And soon our scientists will say stuffs like... Wernstrom: "Face it, Farnsworth, you're over the hill. It's time to leave science to the hundred-twenty-year-olds." Farnsworth: "You young turks think you know everything! I was inventing things when you were barely turning senile." Wernstrom: "Haha! Go home before you embarrass yourself, old man! Now if you'll excuse me, I'm going to take a nap before the ceremonies."

  19. This is not something that was previously unknown. by Biotech9 · · Score: 4, Interesting

    Here's a simple way to increase your lifespan. Eat less. In fact, halve the amount of food you eat.

    There are papers that you can search for with sciencedirect.com or scholar.google.com that show rats that are given half the calories of the control group living almost 50% longer. It's just not exactly something that you can sell to people. You can live longer, if you live LESS. There's a reason animals that live very long lives have very slow metabolisms (such as Turtles) and animals that have very high metabolisms live less (such as humming birds and mice). To put it simply, you can 'burn the midnight oil' and live a short life, or eat less and do less and live longer.

    Putting it more complicatedly, the reason you age is generally regarded to be because of damage your body and cells accumulate over a lifetime of living. The damage often comes from 'Oxidative stress'. This is just a very broad umbrella term for anything that causes the generation of 'Reactive oxygen species' that are highly reactive molecules that zip about your cell damaging proteins and DNA. ROS are made by things such as too much Vitamin K, smoking, UV light or certain other radiation bands, too much iron in the diet, and so on.

    And the biggest contributor to ROS in your body over it's life? The Mitochondria. The 'power plant' of each cell. It makes ROS as a part of the process used to make ATP (the 'batteries' of your cells) and inevitably some escapes and causes damage. Over a life-time the damage builds up.

    The biggest contributor to ageing is just plain old living (kind of obvious really), and the best way to therefore cut down on that damage is to eat less, slowing down the metabolism and decreasing the amount of ROS the mitochondria produces.

    IMHO, not really worth it! you could get hit by a bus tomorrow! Dig into your fresh Chiabatta and Fetta cheese!

  20. I for one welcome our new Disney overlords! by ave19 · · Score: 3, Funny

    This is all a ploy by Disney to justify keeping Micky under copy-wraps for 600 years.

    --
    ...or maybe not.
  21. Re:This is not something that was previously unkno by badfish99 · · Score: 3, Funny

    Is that why all those starving people in Africa all live to be 180 years old?

  22. Re:great... by RevMike · · Score: 2, Funny

    Don't worry. Scientists are also developing this new substance called soylent green which will help feed all these people.

  23. That's not a joke. by Ungrounded+Lightning · · Score: 5, Insightful

    i know exactly when these amazing age-related breakthroughs will come to fruition for humanity

    exactly at the age at which i am too old to partake of any of it


    That's not really a joke.

    People in government see anti-aging research and treatments in terms of the financial load on the retirement and medical infrastructure relative to the tax base of still-working young, and view improved treatments as extending the life of the infirm aged rather than extending productive, vigorous youth. As a result they tend to be opposed to such research, or in favor of rationing its fruits if it ever has any.

    (I recall back in the early days of CNN, when the head of one of the government agencies was being live-interviewed on future solvency issues as the boomers retired, and he slipped and said "We have to get the death rate up to meet the birthrate." Guess what part got clipped from the replay a few hours later...)

    Life-extension advocates, of course, point out that real breakthroughs will extend healthy, vigorous life rather than simply stretching senility - and might eventually eliminate the latter entirely. Thus an effective attack on aging would reduce, rather than increase, the load on the systems (once they were adjusted for the increased lifespan).

    You'll notice that a significant fraction of The Fine Article is dedicated to heading off such short-sightedness on the part of the portion of the ruling class that will be dispensing grant money and regulating availability of any treatments.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
    1. Re:That's not a joke. by bigpat · · Score: 2, Insightful

      Life-extension advocates, of course, point out that real breakthroughs will extend healthy, vigorous life rather than simply stretching senility - and might eventually eliminate the latter entirely. Thus an effective attack on aging would reduce, rather than increase, the load on the systems (once they were adjusted for the increased lifespan).

      Yes, but the politicians worry that they can only use the same old tricks on people for so long before they wise up, so they don't want people living too much longer. And the elderly vote in some of the highest numbers... of course maybe if they were healthy and fit they could be distracted more easily.

    2. Re:That's not a joke. by Anonymous Coward · · Score: 2, Interesting

      That's called a pyramid scheme. Put simply, there is no way to sustain a pyramid scheme, because it requires exponential growth. You don't need enough people to match the number of people retiring. You need more people, so that the quality of life of the person retiring and the people paying for them isn't dropped to something so abysmal that they say, "fuck this," and turn to looting. Then for every N people you used to pay for 1 person, you need N people to pay for them. Then for each of them you need N people. And so on and so forth.

      Social security was originally designed to provide a revenue stream for the Federal government that wouldn't be collected on because it was aimed at the average age of death, that would apply to everyone (and the employers of everyone) and thus be a more stable revenue stream than the income tax. It's a regressive pyramid scheme.

      Which isn't to suggest that I oppose social programs. This one just happens to be funded in a nonsustainable way, and fixing it without changing the way it's funded will just fuck over the middle and lower class disproportionately. FICA taxes cap at a fixed level of income, and everyone pays.

    3. Re:That's not a joke. by HuguesT · · Score: 2, Insightful

      Social security is actually not really screwed right now, but might be within the next 25 years if nothing is done.

      Long term, the birthrate in the US is actually fine, and SS is *not* a pyramid scheme. It currently works on the assumption that people work at their career for about 40 years, save during that time (actually pay for those on retirement) and then retire for 20 years or so living essentially off their savings. If the birthrate and deathrates are steady and retirement savings are adequate, the scheme is actually workable.

      In practice the various rates (savings, pensions, etc) need to be adjusted to account for demographics, but for political reasons they are hard to adjust. This is what makes SS screwed. It needs to be reactive and far-sighted, because people by and large aren't.

  24. Re:Am I the only one... by HellYeahAutomaton · · Score: 2, Insightful

    OK, you can die when the time comes, just going get in the way of the rest of us living on.

  25. Re:great... by Quaoar · · Score: 2, Insightful

    Except that you can't lump all increases of life into the same category. Who's to say that this increase doesn't also affect the length of childhood? Adolescence? People can and do change their minds all the time. I totally disagree that slowing the aging process down and extending life is the wrong thing to do.

    --
    I'll form my OWN solar system! With blackjack! And hookers!
  26. Re:great... by aminorex · · Score: 2, Interesting

    Half of Africa is malnourished because we don't let people move to where the jobs are, and we don't send food to where the people are. This has nothing to do with aging.

    China's one child policy is a big mistake. China needs more urbanites, not less, in order to build the infrastructure to convert to industrial agriculture. But growth is high enough anyhow, so that
    the damage of the policy is not visible.

    You can reliably predict that as longevity increases, birth rates will decline. Simply applying the existing correlation between life-expectancy and birth rate observed internationally today would allow you to see this, let alone considering the underlying factors behind that correlation.

    --
    -I like my women like I like my tea: green-
  27. This is worrisome. by chachacha · · Score: 2, Insightful

    Why are we even pursuing anti-aging research? The cycle of birth and death and rebirth is literally what drives evolution and in turn life on earth. I sincerely hope this, or any other "breakthroughs", never lead to unnatural life extension beyond what can be obtained through sanitation improvements, exercise, diet, and improvements in mental health. Once we go down that route we're playing with natural forces that should not be meddled with.

    --
    I do like programming things that work super quickly, especially when they work super quickly, super quickly.
  28. Immortality would last about 800 years. by orichter · · Score: 4, Interesting

    I asked a friend of mine in the insurance industry once how long people would live if we eliminated all natural causes. He said given current accident rates, people would live on average about 800 years. I do wonder if a lifespan was 800 years on average, we might be more careful, but I doubt it. If you think about it, this number means that roughly 1 in 10 people die in accidents over the course of a lifetime. That sounds about right to me. As for people dying of diseases, I believe that most of the diseases associated with end of life are heavily related to aging itself, so many of the diseases you mention may be lessened or eliminated through extending lifespan.

  29. Bruce Sterling's prophecy coming true? by TheNarrator · · Score: 2, Interesting
    As anyone who has read Bruce Sterling's excellent Schismatrix series knows, Sterling predicts a movement both scientific and political called the "Shapers" who pursue genetic modifications to themselves to extend their lifespans and their physical and mental capabilities. They are opposed by the "Mechanists" who seek to integrate themselves with machines to attain the same feats. The main character Abelard Lindsay, who lives for several hundred years and is followed throughout the book at one point is offered an antique of immense value, the first 500 year old immortal mouse.

    The present version of the "Shaper" movement is known as "Transhumanism". The modern day version of the "Mechanists" would be those who believe in the Ray Kurzweils, Verner Vinge (Singularity Sky) version of the future wherein artificial intelligence becomes integrated with and even exceeds Human Intelligence.

    A bit about Transhumanism:: Transhumanism (sometimes abbreviated >H or H+) is an emergent philosophy analyzing or favouring the use of science and technology, especially neurotechnology, biotechnology, and nanotechnology, to overcome human limitations and improve the human condition.
    ...
    Dr. Anders Sandberg describes modern transhumanism as "the philosophy that we can and should develop to higher levels, physically, mentally and socially using rational methods," while Dr. Robin Hanson describes it as "the idea that new technologies are likely to change the world so much in the next century or two that our descendants will in many ways no longer be 'human'."

  30. Immortality by PGC · · Score: 2, Interesting

    Just what we need :

    6 billion people crammed on a planet, reproducing like rabits....

    ....and a death rate of next to nothing.


    War will become just a method of controlling the population.

    --
    The Dutch will inherit the earth. If not, we'll settle for a bit of ocean. Beta delenda est!
  31. Re:This is not something that was previously unkno by fdicostanzo · · Score: 2, Interesting

    Actually, I spoke with someone researching caloric restrictions and she had a great point (example theory) as to why it might not work with people: the rats that they restricted the diets of lived in relatively clean environments where they were not exposed to disease. Seriously reducing calories can have the effect of reducing your ability to fight disease. These rats did not have to deal with as much disease so a weakened immune system would not have hurt them so much and the benefits the low calorie diet had on oxidative stress could take place.

    So a "normal" diet may be a trade off between reduced oxidative stress and strong immune response.

    --
    Synergies are basically awesome, and they're even better when you leverage them. -PA
  32. Let's take it a step further by kypper · · Score: 2, Informative

    CTG|ACT|GCA|TC
    We could be out of synch with the frame...
    CT GAC TGC ATC
    C TGA CTG CAT C

    But I'm noticing a concern with the GC being present there. It would not be this sequence that is all so important... GC has a tendency to have 5-methyl-cytosines which are deaminated to thymidine. There's no way that strand would last through the generations of mutation in offspring.

    Maybe that's why the highlanders are dying out...? :-)

    1. Re:Let's take it a step further by kypper · · Score: 2, Informative

      Just as an explanation, when the 5-Methyl-C is deaminated to T, it is harder for the repair machinery to recognize the error and so the sequence may then remain as CTGACTGTATC.

      Regular C deaminates to Uridine, which gets fixed right away. CG sequences tend to get methylated more frequently unless they are in CpG islands in the upstream promotor regions...