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Effects of Folic Ac...
Effects of Folic Acid and Vitamin B-12, Alone and in Combination on Cognitive Function and Inflammatory Factors in the Elderly with Mild Cognitive Impairment : A Single-blind Experimental Design
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Ma, Fei (författare)
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Zhou, Xuan (författare)
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Li, Qing (författare)
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Zhao, Jiangang (författare)
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Song, Aili (författare)
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An, Peilin (författare)
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Du, Yue (författare)
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- Xu, Weili (författare)
- Karolinska Institutet,Stockholms universitet,Centrum för forskning om äldre och åldrande (ARC), (tills m KI),Tianjin Medical University, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, China
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Huang, Guowei (författare)
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(creator_code:org_t)
- Bentham Science Publishers Ltd. 2019
- 2019
- Engelska.
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Ingår i: Current Alzheimer Research. - : Bentham Science Publishers Ltd.. - 1567-2050 .- 1875-5828. ; 16:7, s. 622-632
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.2...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Background: Folate and vitamin B-12 are well-known as essential nutrients that play key roles in the normal functions of the brain. Inflammatory processes play at least some role in the pathology of AD. Effective nutritional intervention approaches for improving cognitive deficits that reduce the peripheral inflammatory cytokine levels have garnered special attention. Objective: The present study aimed to determine whether supplementation with folic acid and vitamin B-12, alone and in combination improves cognitive performance via reducing levels of peripheral inflammatory cytokines. Methods: 240 participants with MCI were randomly assigned in equal proportion to four treatment groups: folic acid alone, vitamin B-12 alone, folic acid plus vitamin B-12 or control without treatment daily for 6 months. Cognition was measured with WAIS-RC. The levels of inflammatory cytolcines were measured using ELISA. Changes in cognitive function or blood biomarkers were analyzed by repeated-measure analysis of variance or mixed-effects models. This trial has been registered with trial number ChiCTR-ROC-16008305. Results: Compared with control group, the folic acid plus vitamin B-12 group had significantly greater improvements in serum folate, homocysteine, vitamin B(1)(2 )and IL-6, TNF-alpha, MCP-1. The folic acid plus vitamin B-12 supplementation significantly changed the Full Scale IQ (effect size d = 0.169; P = 0.024), verbal IQ (effect size d= 0.146; P= 0.033). Information (d= 0.172; P= 0.019) and Digit Span (d= 0.187; P = 0.009) scores. Post hoc Turkey tests found that folic acid and vitamin B-12 supplementation was significantly more effective than folic acid alone for all endpoints. Conclusions: The combination of oral folic acid plus vitamin B-12 in MCI elderly for six months can significantly improve cognitive performance and reduce the levels of inflammatory cytokines in human peripheral blood. The combination of folic acid and vitamin B-12 was significantly superior to either folic acid or vitamin B-12 alone.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Nyckelord
- Mild cognitive impairment
- folic acid
- vitamin B-12
- peripheral inflammatory cytokines
- single-blind experimental design
- Alzheimer's disease
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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