Word: blood
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...Huckabee. It remains to be seen whether he can build the kind of organization that will bring out caucusgoers on a wintry Iowa night. It's now clear, though, that he can expect more roughing up from his opponents. "I always enjoy letting the other guy draw the first blood," Huckabee says. "Once blood is drawn, all is fair in love...
...from the ailing organ of the patient himself. Furthest along in development are regenerated human bladders, which are already being tested in early human trials and which Atala has thoughtfully designed in small, medium and large sizes. Not far behind on the organ assembly line are heart valves and blood vessels. Atala began with the bladder not only because of his training as a pediatric urologist, but also because bladder cells are among the many that can be grown outside of the body. In fact, he says, just about every human cell can now be cultured in a Petri dish...
...that's when the fun starts. In order to mold human organs from a clump of cells, Atala came up with creatively constructed scaffolds that would guide the newly grown cells into shape. In most cases - for the bladder, blood vessels and valves, for example - he uses a biodegradable material made of collagen, the structural component in skin. But in order to create more complex structures, such as the heart, he needed something far more sophisticated as a matrix. That's where the inkjet printer came in. One of Atala's colleagues had the bright idea that if a printer...
...Amniotic-fluid stem cells aren't as versatile as embryonic stem cells, which can turn into every tissue type in the body, but they can still develop into an impressive number of much-needed cell types, and Atala has already used them to grow up muscle, bone, fat and blood vessel cells, in addition to nerve and liver. He thinks that amniotic-fluid stem cells could eventually be banked, like blood cells, for universal access by any patient who might need regenerated organs. He predicts that if only about 100,000 specimens were collected from the 4 million live births...
...Arroyo's woes may stem in part from the typical sound and fury of Filipino politics - a blood sport traditionally contested among entrenched dynasties. Yet the accretion of scandal also appears to be eroding support for the President among some in the business community, one of her power bases. "We're really distressed about the way she lurches from one fiasco to another," says Alberto Lim, director of the Makati Business Club, an influential lobbying group that has previously called for Arroyo's resignation...