TY - JOUR
T1 - Individuals with exceptional longevity manifest a delayed association between vitamin d insufficiency and cognitive impairment
AU - Milman, Sofiya
AU - Schulder-Katz, Micol
AU - Deluty, Jennifer
AU - Zimmerman, Molly E.
AU - Crandall, Jill P.
AU - Barzilai, Nir
AU - Melamed, Michal L.
AU - Atzmon, Gil
PY - 2014/1
Y1 - 2014/1
N2 - Objectives To define vitamin D levels and their association with cognition in subjects with exceptional longevity. Design Cross-sectional. Setting Community and long-term care facilities. Participants Ashkenazi Jewish subjects (n = 253) with exceptional longevity, with comparison made to the Third National Health and Nutrition Examination Survey (NHANES III) participants aged 70 and older. Measurements Serum 25-hydroxyvitamin D levels were measured using liquid chromatography/tandem mass spectrometry analysis. Cognitive function was assessed using the Mini-Mental State Examination (MMSE) and clock drawing test (CDT: command and copy). Results The median age of the Ashkenazi subjects was 97 (interquartile range (IQR) 95-104). Age-associated rise in the prevalence of vitamin D insufficiency, defined as a serum vitamin D level of less than 30 ng/mL, was noted in NHANES III (P =.001). In the Ashkenazi group with longevity, the rate of vitamin D insufficiency was comparable with that of the NHANES III participants, who were up to 25 years younger. In the cohort with exceptional longevity, 49% demonstrated cognitive impairment as assessed according to MMSE score (impaired cognition, median 9.5 IQR 0-24); normal cognition, median 29 (IQR 18-30) P <.001). Vitamin D insufficiency was more prevalent in those with impaired cognition, defined according to the MMSE (71.8% vs 57.7%, P =.02) and the CDT copy (84.6% vs. 50.6%, P =.02), than in those with normal cognition. This association remained significant after multivariable adjustment in logistic regression models for cognitive assessments made using the MMSE (odds ratio (OR) = 3.2, 95% confidence interval (CI) = 1.1-9.29, P =.03) and the CDT copy (OR = 8.96, 95% CI = 1.08-74.69, P =.04). Conclusion Higher vitamin D levels may be a marker of delayed aging, because they are associated with better cognitive function in people achieving exceptional longevity.
AB - Objectives To define vitamin D levels and their association with cognition in subjects with exceptional longevity. Design Cross-sectional. Setting Community and long-term care facilities. Participants Ashkenazi Jewish subjects (n = 253) with exceptional longevity, with comparison made to the Third National Health and Nutrition Examination Survey (NHANES III) participants aged 70 and older. Measurements Serum 25-hydroxyvitamin D levels were measured using liquid chromatography/tandem mass spectrometry analysis. Cognitive function was assessed using the Mini-Mental State Examination (MMSE) and clock drawing test (CDT: command and copy). Results The median age of the Ashkenazi subjects was 97 (interquartile range (IQR) 95-104). Age-associated rise in the prevalence of vitamin D insufficiency, defined as a serum vitamin D level of less than 30 ng/mL, was noted in NHANES III (P =.001). In the Ashkenazi group with longevity, the rate of vitamin D insufficiency was comparable with that of the NHANES III participants, who were up to 25 years younger. In the cohort with exceptional longevity, 49% demonstrated cognitive impairment as assessed according to MMSE score (impaired cognition, median 9.5 IQR 0-24); normal cognition, median 29 (IQR 18-30) P <.001). Vitamin D insufficiency was more prevalent in those with impaired cognition, defined according to the MMSE (71.8% vs 57.7%, P =.02) and the CDT copy (84.6% vs. 50.6%, P =.02), than in those with normal cognition. This association remained significant after multivariable adjustment in logistic regression models for cognitive assessments made using the MMSE (odds ratio (OR) = 3.2, 95% confidence interval (CI) = 1.1-9.29, P =.03) and the CDT copy (OR = 8.96, 95% CI = 1.08-74.69, P =.04). Conclusion Higher vitamin D levels may be a marker of delayed aging, because they are associated with better cognitive function in people achieving exceptional longevity.
KW - cognitive function
KW - exceptional longevity
KW - vitamin D
UR - http://www.scopus.com/inward/record.url?scp=84892782173&partnerID=8YFLogxK
U2 - 10.1111/jgs.12601
DO - 10.1111/jgs.12601
M3 - Article
C2 - 24383816
AN - SCOPUS:84892782173
SN - 0002-8614
VL - 62
SP - 153
EP - 158
JO - Journal of the American Geriatrics Society
JF - Journal of the American Geriatrics Society
IS - 1
ER -