Treating Alzheimer's Disease: Are scientists close to finding a cure?

The number of Americans suffering from Alzheimer's, a degenerative brain disease, is projected to more than double by 2050, from 5.3 million today to 13.8 million. At the same time, as Baby Boomers age and medical expenses rise, the cost of treating and caring for people with the disease is expected to rise fivefold to $1.1 trillion. No treatment can yet prevent or cure Alzheimer's. However, advances in brain science and diagnostic technologies are creating breakthroughs unimagined even a few years ago. Rapidly expanding knowledge in genetics, neuroscience, biology and computing is leading to clinical trials on potential new drug therapies, research on how to prevent the disease and new tests to help diagnose it -- perhaps even before symptoms appear. Scientists are debating whether the main hypothesis of what causes the disease -- a buildup of amyloid protein into plaques that kill nerve cells in the brain -- is correct. Patient advocates say federal Alzheimer's research is underfunded, but Congress is clearing the way for more research funds. [ABSTRACT FROM AUTHOR]

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