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  • 标题:The Effect of a High-Dose Vitamin B Multivitamin Supplement on the Relationship between Brain Metabolism and Blood Biomarkers of Oxidative Stress: A Randomized Control Trial
  • 本地全文:下载
  • 作者:Talitha C. Ford ; Luke A. Downey ; Tamara Simpson
  • 期刊名称:Nutrients
  • 电子版ISSN:2072-6643
  • 出版年度:2018
  • 卷号:10
  • 期号:12
  • 页码:1860-1872
  • DOI:10.3390/nu10121860
  • 出版社:MDPI Publishing
  • 摘要:A diet rich in B-group vitamins is essential for optimal body and brain function, and insufficient amounts of such vitamins have been associated with higher levels of neural inflammation and oxidative stress, as marked by increased blood plasma homocysteine. Neural biomarkers of oxidative stress quantified through proton magnetic spectroscopy (1H-MRS) are not well understood, and the relationship between such neural and blood biomarkers is seldom studied. The current study addresses this gap by investigating the direct effect of 6-month high-dose B-group vitamin supplementation on neural and blood biomarkers of metabolism. Using a randomized, double-blind, placebo-controlled design, 32 healthy adults (20 female, 12 male) aged 30–65 years underwent blood tests (vitamin B6, vitamin B12, folate, and homocysteine levels) and 1H-MRS of the posterior cingulate cortex (PCC) and dorsolateral prefrontal cortex (DLPFC) before and after supplementation. Results confirmed the supplement was effective in increasing vitamin B6 and vitamin B12 levels and reducing homocysteine, whereas there was no change in folate levels. There were significant relationships between vitamin B6 and N-acetylaspartate (NAA), choline, and creatine, as well as between vitamin B12 and creatine (ps 0.05). Together these data provide preliminary evidence for the efficacy of high-dose B-group supplementation in reducing oxidative stress and inflammation through increasing oxidative metabolism. It may also promote myelination, cellular metabolism, and energy storage.
  • 关键词:B vitamins; multivitamin; 1H-MRS; homocysteine; oxidative stress; posterior cingulate cortex; NAA; creatine B vitamins ; multivitamin ; 1H-MRS ; homocysteine ; oxidative stress ; posterior cingulate cortex ; NAA ; creatine
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