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London: Nicotine, the drug that has addicted millions to the smoking of cigarettes, could soon be rehabilitated, as a treatment for schizophrenia, Alzheimer's and Parkinson's diseases, or hyperactivity disorders. Research shows the chemical has a powerful impact on brain activity in patients suffering from psychiatric and degenerative disorders. Some experiments have shown that nicotine can slow down the onset of Parkinson's symptoms, others have had revealed its power in curtailing the hallucinations of schizophrenics. "A whole range of psychiatric conditions seem to be helped by nicotine," said Dr Dan McGehee, a neurobiologist at the University of Chicago. "However, such benefits do not justify smoking. The lethal effects of cigarettes far outweigh any help they provide. On the other hand, our research does suggest derivatives of nicotine, administered medically, could help to alleviate a range of psychiatric problems." Guardian Newspapers Limited 2004
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