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Oxidative Stress in Autism and Its Implications for Dopamine-Stimulated Phospholipid Methylation

  • Richard Deth
  • Christina Muratore
  • Mostafa Waly

Abstract

Neurons operate under unique redox conditions, increasing their vulnerability to oxidative stress, and recent studies provide evidence of oxidative stress and neuroinflammation in autism. Impaired methylation is a consequence of oxidative stress, mediated in major part by inhibition of the folate- and colbalamin-dependent enzyme methionine synthase. Since methionine synthase activity is essential for dopamine-stimulated phospholipid methylation, some symptoms of autism may reflect impairment of this process. For example, dopamine D4 receptor activation plays an important role in gamma frequency synchronization of neural networks during attention, and autistic children display deficits in synchronization. This chapter reviews the metabolic events contributing to impaired methylation and examines the mechanisms by which they may contribute to neurodevelopmental disorders such as autism.

Keywords

Angelman Syndrome Autistic Subject Methionine Cycle Cysteine Uptake Impaired Methylation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Richard Deth
    • 1
  • Christina Muratore
    • 1
  • Mostafa Waly
    • 1
    • 2
  1. 1.Department of Pharmaceutical SciencesNortheastern UniversityBostonUSA
  2. 2.Department of Food Science and NutritionSultan Qaboos UniversitySultanate of Oman

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