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Dates: during 1990-1999
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...over time? Will new side effects show up with long-term use? Will tumors that appear while a woman is on tamoxifen be harder to treat (preliminary studies suggest they may be)? Can other drugs confer comparable protection without side effects? And most important, did taking tamoxifen lengthen or shorten these women's life...
Scientists have long theorized that a cell's biological clock lies in its telomeres, little bits of DNA that coat the tips of the chromosomes and, much like the plastic cuffs on shoelaces, prevent the strands from unraveling. Every time a cell splits in two, the telomeres shorten, until finally, after about 40 to 90 divisions, they are reduced to stubs. Because any further divisions would fray the chromosomes, the cells settle into a twilight stage and eventually die. Only an enzyme called telomerase, first discovered in 1984, can repair the damaged telomeres. However, most human cells, with the exception...
...FIGHTER You may no longer have to spend the usual week in bed if you catch the flu. When taken within 30 hours of getting sick, a drug called zanamivir can shorten the duration of Type A and Type B flu from seven to four days. Zanamivir still needs FDA approval...
Still, these moves do little to mitigate the inconvenience of purchasing a sourcebook. Wasting an hour queuing up or being forced to do without assigned readings until lines shorten puts students...
HPPS clearly has had mixed success thus far. We trust Gill will indeed take steps to shorten sourcebook lines before spring semester rolls around, in the dead of winter...