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Friday, September 26, 2008, 07:00 PM: Truthiness and Agnotology
Does the massive increase in communications technology -- the internet, cell phones, satellite and cable television, internet video like youtube, and so on -- make us more informed? Or does it do the opposite -- spead doubt, confusion, lies, mythology, crackpot conspiracy theories, and the like? Bandwidth will keep increasing and increasing, so what should we expect for the future?
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Alzheimer's
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A protein that causes coral to glow is helping researchers to light up brain cells that are critical for the proper functioning of the central nervous system. This fluorescent marker protein may shed light on brain cell defects believed to play a role in various neurological diseases. The researchers describe how this marker works in mice. The marker gives scientists the first-ever opportunity to distinguish between energy-producing structures, called mitochondria, in neurons, from mitochondria in other brain cells, called glia. Defects in mitochondria may be part of the process that leads to Alzheimer's and Parkinson's disease.
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A new imaging molecule that can detect and map plaques and tangles in the brains of people with Alzheimer's disease could eventually lead to earlier diagnosis of the devastating disease, researchers at the University of California, Los Angeles report in the Dec. 21, 2006, issue of the New England Journal of Medicine. The compound developed by UCLA and called FDDNP, also holds promise as a research tool to evaluate new treatments for Alzheimer's. The study was funded in part by the National Institute on Aging (NIA), one of the National Institutes of Health (NIH).
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