Word: miceli
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Dates: during 2000-2009
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...RODENTS 2 billion Number of field mice that have swarmed central China after the worst floods in 50 years drove them out of lowland fields 80? Amount that Guangzhou entrepreneurs were reported by local media to be paying for a kilogram of live mice, to be served at banquets...
Recently, there has been excitement about reprogramming adult cells into embryonic stem cells, a feat newly accomplished with mice. But this, too, has its problems. First, it may be years before the same can be done with human cells. Second, and possibly more troublingly, the resulting cells were highly susceptible to tumors—clearly not ideal for developing medical treatments...
...promise of embryonic stem cell research is not an abstract hope that there may be cures in distant future, but an expectation of concrete results in the near future. In mice, embryonic stem cells turned in dopamine have already been shown to ameliorate Parkinson’s disease. Embryonic stem cell research promises to save lives. Yet, it also poses pressing questions about where, exactly, the ethical boundaries are. Our country needs a new policy that engages the ethical questions, sets standards, and allows scientists to move forward...
...Building on the initial technique, Yamanaka's group, as well as those led by Rudolph Jaenisch at Whitehead and Konrad Hochedlinger at HSCI, showed that the process does indeed work-and can generate stable stem cells that go on to develop into eggs and sperm that can produce healthy mice. "It's very exciting and we look forward to all there is to do from here," says Dr. Renée Reijo Pera, director of Stanford University's Institute for Stem Cell Biology and Regenerative Medicine...
...other concern is perhaps more daunting-two of the four factors that can turn back the clock on adult cells so efficiently are known to cause cancer. One, in fact, was the first gene discovered to cause cancer in mice. "Figuring out how to reprogram cells without directly exposing the cell to the cancer-causing effects of these genes is a major area of scientific activity, and would have to occur before we could consider using similar factor in humans," says Eggan...