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Meet the Epigenome The answer lies beyond both nature and nurture. Bygren's data - along with those of many other scientists working separately over the past 20 years - have given birth to a new science called epigenetics. At its most basic, epigenetics is the study of changes in gene activity that do not involve alterations to the genetic code but still get passed down to at least one successive generation. These patterns of gene expression are governed by the cellular material - the epigenome - that sits on top of the genome, just outside it (hence the prefix epi-, which means above...
...alone? I had a patient just the week before Christmas who had a tumor found in his abdomen. It was on multiple spinal X-rays he'd had, but they were just looking at the spine and they forgot to check the other images. It's a kind of basic mistake radiologists can make. But if you have a checklist, you make sure you've looked...
...have also identified genetic markers for the disease, which should allow doctors to distinguish facial tumor disease easily from other cancers that afflict the Tasmanian devil, and could eventually help determine a genetic pathway to attack the tumor itself. "This is the first application of genetics to estimate the basic biology of the tumor," says Tony Papenfuss, a bioinformatics researcher at the Walter and Eliza Hall Institute of Medical Research in Melbourne and a co-author of the Science paper. "And we've produced a set of tools that can push that information further...
...small way, the system did work, because screening effectively forced the alleged bomber, Umar Farouk Abdulmutallab, to use a liquid chemical rather than a more basic or reliable detonator to trigger the powdered explosive that was sewn into his underwear and smuggled on board. And it turns out that pulling off such an explosion on a plane is no simple feat. "It's a bit more complicated than just putting a flame to the powder," says Jimmie Carol Oxley, the director of the Center of Excellence in Explosives Detection, Mitigation, Response and Characterization at the University of Rhode Island...
...able to adopt children. "This is a huge triumph that has followed so many years of struggle," said campaigner Kin Castañeda, who stood next to her partner in the assembly gallery, the two women wearing identical white Mexican folk dresses. "It is a recognition of our basic rights. And that is a cause for celebration today...