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Parkinson's Disease News covers all significant new research, reports, books, and resources concerning Parkinson's Disease. Articles are chosen on the basis of their medical significance or potential interest. Our overwhelming priority is the facts, regardless of whether they contradict prevailing views or vested interests. Analysis and further information are provided either to explain the background or implications, or to balance misleading claims. If you notice errors or inadequacies, or dispute what is written, or want to propose articles, please e-mail [email protected].

                                           

 

28th October 2016 - New research

AIR POLLUTION INCREASES THE RISK OF PARKINSON'S DISEASE

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Nitrogen dioxide is a chemical compound with the formula NO2. Nitrogen dioxide is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year. At higher temperatures it is a reddish-brown gas that has a characteristic sharp, biting odour and is a prominent air pollutant. Air pollution, especially as nitrogen dioxide, has been found to increase the risk of developing Parkinson's Disease.

High exposure to nitrogen dioxide, largely because of pollution, trebled the risk of Parkinson's Disease. Another study suggests that ambient air pollution exposure, especially from traffic-related pollutants such as nitrogen dioxide and carbon monoxide also increases the risk of Parkinson's Disease. Previous studies have shown that lower exposures to nitrogen dioxide in air pollution did not significantly increase the risk of Parkinson's Disease.

Nitrogen dioxide toxicity causes the nitration of the tyrosine residues of tyrosine hydroxylase. Tyrosine hydroxylase is the enzyme that produces L-dopa and eventually dopamine. It is by this means that nitrogen dioxide has its adverse effects.

References : Environmental Research [2016] 151 : 713-720 (P.C.Lee, O. Raaschou-Nielsen, C.M.Lill, L.Bertram, J.S.Sinsheimer, J.Hansen, B. Ritz), Complete abstract   Environmental International [2016] 96 : 75-81 (P.C.Lee, L.L.Liu, Y.Sun, Y.A.Chen, C.C.Liu, C.Y.Li, H.L.Yu, B.Ritz)  Complete abstract    For more news go to Parkinson's Disease News

 

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2016-10-28 12:33:07
 
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