May 10, 2010

Slaves and Immortals

Don't say you weren't warned.

Times Online (Oct 2004): Scientists find way to make us slaves

By Lois Rogers, Medical Editor

ALDOUS HUXLEY may have got it right. In Brave New World, his classic futuristic novel, the author envisaged a society divided into castes from Alpha at the top to Epsilon at the bottom.

The Epsilons were content to plod on with tedious tasks, their brains numbed by drugs. Until now this has been the stuff of science fiction.

However, experiments conducted on rhesus monkeys have shown for the first time that animal behaviour can be permanently altered, turning the subjects from aggressive to “compliant” creatures.

The scientists did so by blocking the effects of a gene in the brain called D2, which cut off the link between the monkeys’ motivation and perceived reward. Humans have an identical gene.

The project was led by Barry Richmond, a government neurobiologist at America’s National Institute of Mental Health, who has detailed the findings in the journal Nature Neuroscience this month.

The work shows how the monkeys could be made to work enthusiastically for long periods without the need for a “treat”.

Continued. . .

The Independent (Jan 2008): Who wants to live for ever? A scientific breakthrough could mean humans live for hundreds of years
By Steve Connor

A genetically engineered organism that lives 10 times longer than normal has been created by scientists in California. It is the greatest extension of longevity yet achieved by researchers investigating the scientific nature of ageing.

If this work could ever be translated into humans, it would mean that we might one day see people living for 800 years. But is this ever going to be a realistic possibility?

Valter Longo is one of the small but influential group of specialists in this area who believes that an 800-year life isn't just possible, it is inevitable. It was his work at the University of Southern California that led to the creation of a strain of yeast fungus that can live for 10 weeks or more, instead of dying at its usual maximum age of just one week.

By deleting two genes within the yeast's genome and putting it on a calorie-restricted diet, Longo was able to extend tenfold the lifespan of the same common yeast cells used by bakers and brewers. The study is published later this week in the journal Public Library of Science Genetics.

Continued. . .