Word: celling
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Researchers at the Harvard Stem Cell Institute are one step closer to achieving the ultimate promise of stem cell research—creating tissues for every part of the body—without the use of harmful viruses or cancer-causing genes...
...Unlike retroviruses, which scientists have been using to create iPS cells, these viruses effectively disappear after a few cell divisions and do not integrate into the cells’ DNA. The effect of this is that adenoviruses are free from the chief adverse effect of genetic manipulation, which can turn on cancer genes and trigger malignant tumor growth...
...beauty of this is that if you want to use the cells therapeutically—if you want to put them in somebody—it basically gets rid of the dangerous transcription factors that were used in the initial integration,” said Gordon C. Weir, a Medical School professor who heads the diabetes program at HSCI. “The last thing you want is to transplant a potentially malignant cell into a patient...
...Those of us who bother to skim the “Community Advisories” usually skip the last three paragraphs—which always offer the same strategies for staying safe. We’re warned not to talk on cell phones or listen to iPods as we make our way home, and to remain in well-lit areas as often as possible. If we notice any suspicious individuals, we should call for help immediately. Most of all, HUPD instructs each of us to “trust your instincts...
...time a child is 6, it is 90% to 95% of its adult size. As a matter of fact, we are born equipped with most of the neurons our brain will ever have - and that's fewer than we have in utero. Humans achieve their maximum brain-cell density between the third and sixth month of gestation - the culmination of an explosive period of prenatal neural growth. During the final months before birth, our brains undergo a dramatic pruning in which unnecessary brain cells are eliminated. Many neuroscientists now believe that autism is the result of insufficient or abnormal prenatal...