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Comment & Response |

25-Hydroxyvitamin D in Patients With Cognitive Decline

Sevilay Muratli, MD1; Ozlem Soyluk, MD2; Fatih Tufan2
[+] Author Affiliations
1Division of Geriatrics, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
2Department of Gerontology, Faculty of Medical Sciences, Istanbul University, Istanbul, Turkey
JAMA Neurol. 2016;73(3):357. doi:10.1001/jamaneurol.2015.4188.
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To the Editor We read with interest the well-designed study by Miller et al.1Vitamin D deficiency (VDD) is an important health problem in elderly individuals, and the association of VDD and cognitive functions is an area that has drawn significant interest. There is also a great need to find factors related with the risk for dementia to have preventive measures for dementia, for which no curative treatment could be found to date. The findings of this prospective study with a long-term follow-up are valuable and indicate an association between VDD and dementia. However, we have some comments that could facilitate interpretation of the results.


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March 1, 2016
Marijn M. Speeckaert, MD, PhD; Joris R. Delanghe, MD, PhD
1Department of Nephrology, Ghent University Hospital, Ghent, Belgium
2Department of Clinical Chemistry, Ghent University Hospital, Ghent, Belgium
JAMA Neurol. 2016;73(3):356-357. doi:10.1001/jamaneurol.2015.4182.
March 1, 2016
Joshua W. Miller, PhD; Ralph Green, MD, PhD; Charles DeCarli, MD
1Department of Nutritional Sciences, Rutgers University, New Brunswick, New Jersey2Department of Medical Pathology and Laboratory Medicine, University of California, Davis
2Department of Medical Pathology and Laboratory Medicine, University of California, Davis
3Department of Neurology, University of California, Davis
JAMA Neurol. 2016;73(3):358. doi:10.1001/jamaneurol.2015.4185.
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