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Vitamin D Associated With Milder Parkinson’s Disease Symptoms

January 16, 2014: 12:00 AM EST
Higher levels of vitamin D in the blood of Parkinson’s disease patients are associated with less severe symptoms, especially among patients who are not suffering from dementia, a U.S. study finds. Investigators tested  286 patients with Parkinson’s, finding that all patients with higher plasma vitamin D levels had lower symptom severity, better cognition, and less depression, but the relationships were even stronger in those who were not demented. Of the 286 subjects, 61 were considered to be demented. The researchers found that higher levels of serum vitamin D3 in the non-demented patients were associated with greater fluency for naming vegetables and animals, and immediate and delayed recall on a verbal learning test.
Amie L. Peterson et al., "Memory, Mood, and Vitamin D in Persons with Parkinson’s Disease", Journal of Parkinson’s Disease, January 16, 2014, © IOS Press
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