Journal: Archives of Biochemistry and Biophysics
. 2007 Apr 15;460(2):202-5.
Authors and affiliation: Przybelski RJ, Binkley NC. School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA. [E-mail: firstname.lastname@example.org ]
This study investigates the association of vitamin D status with cognitive function and discusses potential mechanisms for such an effect. The relationship of vitamin B12 with cognition was also assessed.
A retrospective review of older adults presenting to a university-affiliated clinic providing consultative assessments for memory problems was performed. Charts of all patients (n=80) presenting for initial visits were reviewed to identify those who had serum 25-hydroxyvitamin D (25(OH)D), vitamin B12, and mini-mental state examination score (MMSE) all obtained on their first visit (n=32).
Correlation analyses between MMSE and 25(OH)D and vitamin B12 levels were performed. Serum 25(OH)D concentration and MMSE showed a (p=0.006) positive correlation; no (p=0.875) correlation was observed between serum B12 concentration and MMSE.
In conclusion, the positive, significant correlation between serum 25(OH)D concentration and MMSE in these patients suggests a potential role for vitamin D in cognitive function of older adults.