Aging Partially Reversed in Mice

November 29, 2010

Scientists have partially reversed age-related degeneration in mice, an achievement that suggests a new approach for tackling similar disorders in people.

By tweaking a gene, the researchers reversed brain disease and restored the sense of smell and fertility in prematurely aged mice. Previous experiments with calorie restriction and other methods have shown that aspects of aging can be slowed. This appears to be the first time that some age-related problems in animals have actually been reversed.

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The Fight to End Aging Gains Legitimacy, Funding

June 28, 2008

Gandhi once said, describing his critics, “First they ignore you, then they laugh at you, then they fight you, then you win.”

After declaring, essentially out of nowhere, that he had a program to end the disease of aging, renegade biogerontologist Aubrey de Grey knows how the first three steps of Gandhi’s progression feel. Now he’s focused on the fourth.

“I’ve been at Gandhi stage three for maybe a couple of years,” de Grey said. “If you’re trying to make waves, certainly in science, there’s a lot of people who are going to have insufficient vision to bother to understand what you’re trying to say.”

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“BLUE BRAIN”: How scientists are simulating a brain, cell for cell

March 28, 2007

This unprecedented piece of hardware consists of about 10,000 computer chips that act like real nerve cells. To simulate a natural brain, part of the cerebral cortex of young rats was painstakingly replicated in the computer, cell by cell, together with the branched tree-like structure of the synapses.

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Molecular DNA Switch Found to be the Same for All Life

July 21, 2006

The molecular machinery that starts the process by which a biological cell divides into two identical daughter cells apparently worked so well early on that evolution has conserved it across the eons in all forms of life on Earth. Researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and the University of California at Berkeley have shown that the core machinery for initiating DNA replication is the same for all three domains of life – Archaea, Bacteria and Eukarya.

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Brain can be made to self-repair

June 29, 2006

Stimulating a protein on the surface of the brain’s stem cells helps rats recover after a stroke, US researchers have found. The discovery suggests that in humans it could be possible to provoke the body’s own stem cells into repairing an injury, rather than laboriously growing and transplanting new cells.

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Biology Net News

June 21, 2006

Biology Net News is a biology-specific news aggregator linking to the most recent copyrighted news and articles on popular websites.

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Last male of purebred rabbit species dies

May 19, 2006

The last male purebred Columbia Basin pygmy rabbit has died, leaving just two females in a captive breeding program created to try to save the endangered species from extinction. The tiny rabbits are only found in Douglas County in north-central Washington. None are believed to exist in the wild, which means the two females — Lolo and Bryn — are the only known purebred pygmy rabbits left in existence.

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