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Geriatr Nurs ; 51: 143-149, 2023.
Article in English | MEDLINE | ID: mdl-36940509

ABSTRACT

OBJECTIVES: We aimed to investigate the efficacy of B-vitamin and folic acid supplementation in slowing down cognitive function decline among older adults. METHODS: We searched databases for trials comparing B-vitamin and folate supplementation versus placebo in older adults identified with or without impaired cognition. RESULTS: 23 articles were eligible and included in this meta-analysis. The mean difference (MD) in homocysteine levels was significant between the compared groups (MD:-4.52; 95%CI:-5.41 to 3.63, P < 0.001). However, the difference in the Mini-Mental State Examination (MMSE) was non-significant between the compared groups with or without cognitive impairment (MD:0.19; 95%CI: -0.148 to 0.531, P = 0.27), and (MD:0.04; 95%CI:-0.1 to 0.18, P = 0.59), respectively. The difference in Clinical Dementia Rating-sum of box (CDR-SOB) scores was non-significant (MD:-0.16; 95%CI:-0.49 to 0.18; P = 0.36). CONCLUSIONS: B-vitamin and folate supplementations significantly reduced homocysteine levels. However, it failed to provide significant benefits over placebo in preventing or slowing the decline in cognitive function.


Subject(s)
Cognition Disorders , Dementia , Vitamin B Complex , Humans , Aged , Folic Acid/therapeutic use , Vitamin B 12/therapeutic use , Cognition Disorders/drug therapy , Vitamin B Complex/therapeutic use , Dietary Supplements , Cognition , Homocysteine/therapeutic use
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