Accéder directement au contenu Accéder directement à la navigation

Serum Vitamin D and Cingulate Cortex Thickness in Older Adults: Quantitative MRI of the Brain

Abstract : BACKGROUND: Vitamin D insufficiency is associated with brain changes, and cognitive and mobility declines in older adults. OBJECTIVE: Our objective was to investigate in older adults whether vitamin D insufficiency<50nmol/L was associated with thinner cingulate cortex, a brain area related to cognitive functions influenced by vitamin D. METHODS: Two hundred and fifteen Caucasian older community-dwellers (mean±SD, 72.1±5.5years; 40% female) received a blood test and brain MRI. The thickness of perigenual anterior cingulate cortex, midcingulate cortex and posterior cingulate cortex was measured using FreeSurfer from T1-weighted MR images. Age, gender, education, BMI, mean arterial pressure, comorbidities, use of vitamin D supplements or anti-vascular drugs, MMSE, GDS, IADL, serum calcium and vitamin B9 concentrations, creatinine clearance were used as covariables. RESULTS: Participants with vitamin D insufficiency (n=80) had thinner total cingulate thickness than the others (24.6±1.9mm versus 25.3±1.4mm, P=0.001); a significant difference found for all 3 regions. Vitamin D insufficiency was cross-sectionally associated with a decreased total cingulate thickness (β=- 0.49, P=0.028). Serum 25OHD concentration correlated positively with the thickness of perigenual anterior (P=0.011), midcingulate (P=0.013) and posterior cingulate cortex (P=0.021). CONCLUSION: Vitamin D insufficiency was associated with thinner cingulate cortex in the studied sample of older adults. These findings provide insight into the pathophysiology of cognitive and mobility declines in older adults with vitamin D insufficiency. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal.univ-angers.fr/hal-02510171
Contributeur : Marie-Françoise Gerard <>
Soumis le : mardi 17 mars 2020 - 15:04:00
Dernière modification le : mercredi 18 mars 2020 - 01:22:17

Identifiants

Citation

Gonzague Foucault, Guillaume Duval, Romain Simon, Olivier Beauchet, Mickaël Dinomais, et al.. Serum Vitamin D and Cingulate Cortex Thickness in Older Adults: Quantitative MRI of the Brain. Current Alzheimer Research, Bentham Science Publishers, 2019, 16 (11), pp.1063-1071. ⟨10.2174/1567205016666191113124356⟩. ⟨hal-02510171⟩

Partager

Métriques

Consultations de la notice

30