Abstract
Background: There is a growing focus on nutritional therapy for Alzheimer’s disease (AD), and controversy exists regarding the association between AD and homocysteine (Hcy), vitamin B12, and folate levels. Objective: The present study evaluated the association between AD and the combined levels of Hcy, vitamin B12, and folate. Methods: This case-control study consisted of 115 patients with AD and 115 matched controls. Serum folate and vitamin B12 were measured using an automated immunoassay analyzer. Plasma Hcy was measured using high-performance liquid chromatography. The association between AD and Hcy, vitamin B12, and folate was analyzed using binary logistic regression, adjusted for age and sex. Results: With the combination of normal blood Hcy, vitamin B12, and folate levels as the reference category, low vitamin B12 in subjects with normal Hcy and folate was associated with AD (adjusted odds ratio [OR], 4.6; 95% confidence interval [CI]: 1.6–13.2). The combination of low vitamin B12 and folate in subjects with normal Hcy was associated with AD (adjusted OR, 4.3; 95% CI: 1.3–14.6). The combination of high Hcy and low folate levels in patients with normal vitamin B12 was associated with AD (adjusted OR, 17.0; 95% CI: 5.4– 53.4). The combination of high Hcy, low vitamin B12, and any folate level was associated with AD (adjusted OR, 30.5; 95% CI: 9.7–95.9). Conclusion: Vitamin B12 was directly associated with AD. The combination of high Hcy, low vitamin B12, and any folate level represented the poorest association with AD.
Keywords: Activities of daily living, Alzheimer’s disease, folate, homocysteine, mini-Mental state examination, vitamin B12.
Current Alzheimer Research
Title:Associations between Alzheimer’s Disease and Blood Homocysteine, Vitamin B12, and Folate: A Case-Control Study
Volume: 12 Issue: 1
Author(s): Hui Chen, Shuai Liu, Lu Ji, Tianfeng Wu, Fei Ma, Yong Ji, Yuying Zhou, Miaoyan Zheng, Meilin Zhang and Guowei Huang
Affiliation:
Keywords: Activities of daily living, Alzheimer’s disease, folate, homocysteine, mini-Mental state examination, vitamin B12.
Abstract: Background: There is a growing focus on nutritional therapy for Alzheimer’s disease (AD), and controversy exists regarding the association between AD and homocysteine (Hcy), vitamin B12, and folate levels. Objective: The present study evaluated the association between AD and the combined levels of Hcy, vitamin B12, and folate. Methods: This case-control study consisted of 115 patients with AD and 115 matched controls. Serum folate and vitamin B12 were measured using an automated immunoassay analyzer. Plasma Hcy was measured using high-performance liquid chromatography. The association between AD and Hcy, vitamin B12, and folate was analyzed using binary logistic regression, adjusted for age and sex. Results: With the combination of normal blood Hcy, vitamin B12, and folate levels as the reference category, low vitamin B12 in subjects with normal Hcy and folate was associated with AD (adjusted odds ratio [OR], 4.6; 95% confidence interval [CI]: 1.6–13.2). The combination of low vitamin B12 and folate in subjects with normal Hcy was associated with AD (adjusted OR, 4.3; 95% CI: 1.3–14.6). The combination of high Hcy and low folate levels in patients with normal vitamin B12 was associated with AD (adjusted OR, 17.0; 95% CI: 5.4– 53.4). The combination of high Hcy, low vitamin B12, and any folate level was associated with AD (adjusted OR, 30.5; 95% CI: 9.7–95.9). Conclusion: Vitamin B12 was directly associated with AD. The combination of high Hcy, low vitamin B12, and any folate level represented the poorest association with AD.
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Cite this article as:
Chen Hui, Liu Shuai, Ji Lu, Wu Tianfeng, Ma Fei, Ji Yong, Zhou Yuying, Zheng Miaoyan, Zhang Meilin and Huang Guowei, Associations between Alzheimer’s Disease and Blood Homocysteine, Vitamin B12, and Folate: A Case-Control Study, Current Alzheimer Research 2015; 12 (1) . https://dx.doi.org/10.2174/1567205012666141218144035
DOI https://dx.doi.org/10.2174/1567205012666141218144035 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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