Slashdot Mirror


Scientists Identify a Potentially Universal Mechanism of Aging

cybergenesis2008 points us to a summary of research out of Harvard Medical School in which a set of genes known to affect aging in yeast was found to affect aging in mice as well. The genes, called sirtuins, perform two particular tasks; regulating which genes are "on" and "off," and also helping to repair damaged DNA. As an organism ages, the frequency of damage to DNA increases, leaving less time for the sirtuins' regulatory tasks. The increasingly unregulated genes then become a significant factor in aging. Realizing this, the researchers "administered extra copies of the sirtuin gene [to the mice], or fed them the sirtuin activator resveratrol, which in turn extended their mean lifespan by 24 to 46 percent." We discussed the plans for this research a few years ago.

2 of 359 comments (clear)

  1. Re:Immortality is scary by Free+the+Cowards · · Score: 4, Interesting

    Medicare is going bankrupt because aggregate costs are increasing. But that says nothing about individual procedures. If we wanted to provide 1950-level care today, it would cost less than it cost in 1950. But we expect better, and so we pay more, even though the cost of the individual pieces has gone down.

    --
    If you mod me Overrated, you are admitting that you have no penis.
  2. Re:Immortality is scary by gregorio · · Score: 4, Interesting

    The investment class doesn't "provide jobs and growth" so much as it skims wealth off of the top. The U.S. GDP is about $14 trillion, the workforce of about 150,000,000: the average American worker creates about $93,000 worth of value per year. But the average annual wage is only about $39,000.

    Except that economics doesn't work that way. The GDP is not about "creating value", but mostly about moving money around. You're also wrong when you talk about "the average American worker" when mentioning TOTAL/COUNT.

    General Electric has a Net Income of 22 billion dollars, and 370 000 workers. That's nearly 60 thousand dollars worth of profit for every single employee. So an extremely profitable company will yield something like 2/3 of your estimate. Even worse when you consider that GE is a good employer.

    If you compare GE's 60k USD and your mentioned average 40k USD, it's a pretty fair game: their profits are not based just on their workforce but also based on more than half a trillion dollars in debt and more than 130 billion worth of assets. Taking only 60k of profit per employee while having to finance such a massive infrastructure is pretty fair.

    You also fail to account the fact that most companies are owned by the average american. While powerful banks such as Goldman Sachs and JP Morgan are the first-tier owners of billions of dollars worth of stocks, they're actually buying them in the name of pension funds and also using money borrowed from your bank account.