High-dose vitamin B3 'cures' Alzheimer's in lab mice

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Nicotinamide, a form of vitamin B3, has been found to eradicate Alzheimer's disease-related memory problems in lab mice, according to new research.

The vitamin is available over the counter at a low price (one researcher said a year's supply could be bought for $30). When mice that were bred to exhibit symptoms of Alzheimer's received the human equivalent of two or three grams of B3, they acted as if they had never developed the disease, said one University of California researcher.

The vitamin acts in the brain to clear tau "tangles," a hallmark of Alzheimer's disease. While the vitamins are available over the counter and are relatively safe, researchers warn that high doses such as the ones used in the study could potentially be dangerous. Researchers are currently enlisting people for human trials. Their research appears in the November 5 online version of the Journal of Neuroscience. Click here to read more.