Word: dna
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...shown effective for the first time at NIAID, may be able to thwart this evasive action. Known as "prime-boost," it gives the immune system a whiff of the virus' scent before hitting it with the actual vaccine. In Nabel's lab, that whiff consists of a snippet of DNA from HIV's outer coating--not enough to trigger a full immune response but, as his work was the first to show in animals, enough to put the system on alert. In the past this strategy hasn't worked in humans because our immune system, unlike those of other mammals...
...this strategy will work against HIV, but it is already working against another deadly virus. Ebola, though it has claimed far fewer victims than HIV, has enormous potential for devastation. There is no cure or vaccine for it--but in a recent trial, Nabel's group has shown that DNA priming can protect monkeys from Ebola...
...cell biologist at Stanford: "I don't think anybody believes the debate is over." It only got hotter when an independent company, Advanced Cell Technology, said recently that it had cloned human embryos to produce stem cells. This so-called therapeutic cloning produces cells with the patient's own DNA, reducing problems with future organ transplants. Congress will debate the issue anew next year, when opposing bills on cloning and stem-cell related research will be presented...
...love story, part homage to the brilliant physicist George ('Geo,' pronounced Joe) Gamow, this is another tell-all tale in the tradition of the 'The Double Helix.' Yes, Watson is at it again, recalling the turbulent decade that followed the world-shaking publication of the Watson-Crick model of DNA...Watson seems more tempered this time around, especially in the treatment of Rosalind Franklin. But the urge to reveal all will surely upset a few who may not see it that...
...thousands of POWs in Northern Alliance hands. Interrogating prisoners can be deadly dangerous; it was in just such circumstances that CIA agent Johnny Micheal Spann died two Sundays ago. "They are people who don't walk up and volunteer their names and identification numbers with a sample of DNA," noted Defense Secretary Donald Rumsfeld. "They blend into the other prisoners. It's a messy business...