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...diabetes patients with their own stem cells. The group first reported its initial achievement in 2007, with 15 type 1 diabetes patients who received their own stem cells and no longer needed insulin to control their blood sugar levels. In the new study, a follow-up of their previous work, Voltarelli and his colleagues detailed the same success with an additional eight patients, and also confirmed that in the majority of them, the stem cell transplant led to an appreciable repopulation of functioning insulin-producing beta cells in the pancreas...
...there may not be enough beta cells remaining to seed a new population of insulin-growing cells, even with an infusion of stem cells to give them a more hospitable environment. "This study shows that it can work, but how long it will work is a question," he says. Previous studies have shown that after an immune cell transplant, beta cells vigorously produce insulin for about six months, and then start to die off, victims of the same immune attack that destroyed their predecessors...
...projects in an effort to shame politicians into curbing their earmark requests. It hasn't worked. This year's Pig Book outlines $19.6 billion in pork barrel projects that will fund more than 10,000 projects in the 2009 fiscal year. (The dollar amount is 14% higher than the previous year, although the raw number of projects dropped 12.5%.) The thing about earmarks is that they make a politician popular at home, but unpopular on the national stage. While some politicians prefer to keep their overspending quiet, others are proud of their ability to "bring home the bacon." Still...
...break. We weren’t able to get some of those. That was really disappointing.” The game marked Harvard’s second one-goal defeat in a row against a top five Ivy League opponent after a heartbreaking 13-12 loss to Cornell the previous weekend. With an Ancient Eight championship nearly out of reach at this point, the Crimson must look to win out to return to the national tournament for the first time since 2006. “Looking at some of the scores from before the new coaches came in, they were...
...Screening for breast cancer susceptibility is advancement in the same direction. The previous legal boundaries for appropriate screening (a 90-100 percent chance of the disease affecting the child) were violated in this case. As advances allow us to screen for smaller and smaller susceptibilities, firm boundaries must be drawn to keep science in check. Policymakers must consider the range of genes that cause the same level of susceptibility as BRCA1 and evaluate the implications of permitting such extensive use of pre-natal screening. Ultimately, a level of susceptibility for which it is permissible to screen must be determined...