Abstract
Background: Insufficiency in vitamin D, a neurosteroid hormone, is associated with cognitive decline in older adults. The impact on the subjective perception of cognitive decline has not yet been examined. The objective of this cross-sectional hospital-based study was to determine whether vitamin D insufficiency was associated with subjective cognitive complaint amongst geriatric patients. Methods: Ninety-nine consecutive Caucasian in- and outpatients recruited in the ’Cognition and LIPophilic vitamins’ (CLIP) study, who had no advanced cognitive disorders (ie, Mini-Mental State Examination score≥20) and who took no vitamin D supplements, were categorized into 2 groups based on vitamin D insufficiency (ie, serum 25-hydroxyvitamin D≥75nmol/L). Subjective cognitive complaint was examined using the Memory Complaint Questionnaire (MAC-Q; score 0-30, best). MAC-Q score<15 out of 30 defined severe cognitive complaint. Age, gender, body mass index, education level, comorbidity burden, functional autonomy, mood, and serum concentrations of parathyroid hormone, calcium, thyroid-stimulating hormone and vitamin B12, and estimated glomerular filtration rate were used as potential confounders. Results: Compared to participants with serum 25OHD>75nmol/L, those with vitamin D insufficiency (n=89) had a lower mean MAC-Q score (14.9±2.9 versus 17.1±1.6, P=0.02) and more often a MAC-Q score<15 (52.8% versus 10.0%, P=0.01). Vitamin D insufficiency was inversely associated with the MAC-Q score (adjusted β=-2.84, P=0.03), and positively associated with severe cognitive complaint (adjusted OR=10.07, P=0.03). Conclusion: Vitamin D insufficiency was associated with subjective cognitive complaint in the studied cohort of geriatric patients.
Keywords: Cognition, cognitive complaint, dementia, neuroendocrinology, older adults, vitamin D.
Current Alzheimer Research
Title:Biology of Subjective Cognitive Complaint Amongst Geriatric Patients: Vitamin D Involvement
Volume: 12 Issue: 2
Author(s): Elena De Neree Tot Babberich, Clemence Gourdeau, Simon Pointel, Bruno Lemarchant, Olivier Beauchet and Cedric Annweiler
Affiliation:
Keywords: Cognition, cognitive complaint, dementia, neuroendocrinology, older adults, vitamin D.
Abstract: Background: Insufficiency in vitamin D, a neurosteroid hormone, is associated with cognitive decline in older adults. The impact on the subjective perception of cognitive decline has not yet been examined. The objective of this cross-sectional hospital-based study was to determine whether vitamin D insufficiency was associated with subjective cognitive complaint amongst geriatric patients. Methods: Ninety-nine consecutive Caucasian in- and outpatients recruited in the ’Cognition and LIPophilic vitamins’ (CLIP) study, who had no advanced cognitive disorders (ie, Mini-Mental State Examination score≥20) and who took no vitamin D supplements, were categorized into 2 groups based on vitamin D insufficiency (ie, serum 25-hydroxyvitamin D≥75nmol/L). Subjective cognitive complaint was examined using the Memory Complaint Questionnaire (MAC-Q; score 0-30, best). MAC-Q score<15 out of 30 defined severe cognitive complaint. Age, gender, body mass index, education level, comorbidity burden, functional autonomy, mood, and serum concentrations of parathyroid hormone, calcium, thyroid-stimulating hormone and vitamin B12, and estimated glomerular filtration rate were used as potential confounders. Results: Compared to participants with serum 25OHD>75nmol/L, those with vitamin D insufficiency (n=89) had a lower mean MAC-Q score (14.9±2.9 versus 17.1±1.6, P=0.02) and more often a MAC-Q score<15 (52.8% versus 10.0%, P=0.01). Vitamin D insufficiency was inversely associated with the MAC-Q score (adjusted β=-2.84, P=0.03), and positively associated with severe cognitive complaint (adjusted OR=10.07, P=0.03). Conclusion: Vitamin D insufficiency was associated with subjective cognitive complaint in the studied cohort of geriatric patients.
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Tot Babberich De Neree Elena, Gourdeau Clemence, Pointel Simon, Lemarchant Bruno, Beauchet Olivier and Annweiler Cedric, Biology of Subjective Cognitive Complaint Amongst Geriatric Patients: Vitamin D Involvement, Current Alzheimer Research 2015; 12 (2) . https://dx.doi.org/10.2174/1567205012666150204123504
DOI https://dx.doi.org/10.2174/1567205012666150204123504 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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