• Lancet neurology · Jun 2015

    Review

    Gastrointestinal dysfunction in Parkinson's disease.

    • Alfonso Fasano, Naomi P Visanji, Louis W C Liu, Antony E Lang, and Ronald F Pfeiffer.
    • Morton and Gloria Shulman Movement Disorders Clinic and the Edmond J Safra Program in Parkinson's Disease, Toronto Western Hospital, University Health Network, Division of Neurology, University of Toronto, Toronto, Ontario, Canada. Electronic address: alfonso.fasano@uhn.ca.
    • Lancet Neurol. 2015 Jun 1; 14 (6): 625-39.

    AbstractOur understanding of dysfunction of the gastrointestinal system in patients with Parkinson's disease has increased substantially in the past decade. The entire gastrointestinal tract is affected in these patients, causing complications that range from oral issues, including drooling and swallowing problems, to delays in gastric emptying and constipation. Additionally, small intestinal bacterial overgrowth and Helicobacter pylori infection affect motor fluctuations by interfering with the absorption of antiparkinsonian drugs. The multifaceted role of the gastrointestinal system in Parkinson's disease necessitates a specific and detailed assessment and treatment plan. The presence of pervasive α-synuclein deposition in the gastrointestinal tract strongly implicates this system in the pathogenesis of Parkinson's disease. Future studies elucidating the role of the gastrointestinal tract in the pathological progression of Parkinson's disease might hold potential for early disease detection and development of neuroprotective approaches. Copyright © 2015 Elsevier Ltd. All rights reserved.

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