期刊
PSYCHOGERIATRICS
卷 16, 期 1, 页码 3-11出版社
WILEY-BLACKWELL
DOI: 10.1111/psyg.12109
关键词
Alzheimer's disease; apolipoprotein E; grey matter atrophy; homocysteine; vitamin B-12
资金
- Biomedical Research Institute Grant, Pusan National University Hospital [2012-22]
Aims: The aim of the present study was to investigate whether the effects of vitamin B-12 and homocysteine on brain volume are influenced by apolipoprotein E (APOE) genotype. We examined the effects in each subgroup (APOE epsilon 4 carriers and non-carriers) of Alzheimer's disease (AD) patients and healthy normal controls. Methods: Forty participants with AD and 20 healthy normal controls were recruited from memory impairment clinics at Pusan National University Hospital in Korea. All participants were APOE genotyped and underwent magnetic resonance imaging, including 3-D volumetric images for grey matter (GM) volume. A multiple regression model integrated into statistical parametric mapping was used to see if there was any correlation between vitamin B-12 or homocysteine and GM volume in each subgroup (APOE epsilon 4 carriers and non-carriers) of AD patients and healthy normal controls. Results: There was a significant positive correlation between serum concentrations of vitamin B-12 and regional GM volume in APOE epsilon 4 carriers with AD but not in non-carriers. We also found that there was a significant negative correlation between serum concentrations of homocysteine and regional GM volume in APOE epsilon 4 non-carriers with AD but not in carriers (P < 0.001, uncorrected for multiple comparisons; extent threshold = 100 voxel). Conclusion: The present findings suggest that the effects of vitamin B-12 and homocysteine on GM volume might be influenced by APOE genotype.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据