Lab Report: Health, Science and Medicine

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Melanoma comes in many forms, and predicting who is at risk of developing the most aggressive and fastest-spreading skin cancers would help more patients take advantage of treatments earlier. Scientists have homed in on a gene linked to a cell's ability to control proliferation, and in samples of the most aggressive melanoma tumors, the gene was missing.

HAZARDOUS HOGS

Cruising on a motorcycle may make riders feel alive, but a new study finds that black bikers are nearly 60% more likely to die in a crash than white riders, even if they are wearing helmets. The reason may have to do with the faster and heavier machines black riders prefer, which suggests that safety efforts should focus on more than simple protection against head injuries.