Vitamin E intake and risk of amyotrophic lateral sclerosis

Vitamin E intake and risk of amyotrophic lateral sclerosis
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DOI:
10.1002/ana.20316
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发表时间:
2005-01-01
影响因子:
11.2
通讯作者:
Thun, MJ
Thun, MJ
中科院分区:
医学1区
文献类型:
--
作者:
Ascherio, A;Weisskopf, MG;Thun, MJ

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氧化应激可能导致肌萎缩侧索硬化症(ALS)的发病机制。因此,我们前瞻性地研究了经常使用抗氧化剂维生素 E 和 C 补充剂的人是否比不服用抗氧化剂的人患 ALS 的风险更低。研究人群包括 957,740 名 30 岁或以上参加美国癌症协会癌症预防研究 II 的个体。有关维生素使用的信息是在 1982 年招募时收集的;然后通过与国家死亡指数的联系,对参与者从 1989 年到 1998 年的 ALS 死亡情况进行追踪。在随访期间,我们记录了 525 例死于 ALS 的病例。定期服用维生素 E 补充剂可降低 ALS 死亡风险。与不服用维生素 E 的人相比,偶尔服用维生素 E 的经年龄和吸烟调整后的相对风险为 0.99(95% 置信区间 [CI],0.69-1.41),10 年以内经常服用者的相对风险为 0.59(95% CI,0.36-0.96),10 年及以上经常服用者的相对风险为 0.38(95% CI,0.16-0.92)。 (p 代表趋势 = 0.004)。相比之下,没有发现维生素 C 或多种维生素的使用存在显着关联。这些结果表明,补充维生素 E 可在预防 ALS 中发挥作用。
Oxidative stress may contribute to the pathogenesis of amyotrophic lateral sclerosis (ALS). We therefore examined prospectively whether individuals who regularly use supplements of the antioxidant vitamins E and C have a lower risk of ALS than nonusers. The study population comprised 957,740 individuals 30 years of age or older participating in the American Cancer Society's Cancer Prevention Study II. Information on vitamin use was collected at time of recruitment in 1982; participants then were followed up for ALS deaths from 1989 through 1998 via linkage with the National Death Index. During the follow-up, we documented 525 deaths from ALS. Regular use of vitamin E supplements was associated with a lower risk of dying of ALS. The age- and smoking-adjusted relative risk was 0.99 (95% confidence interval [CI], 0.69-1.41) among occasional users, 0.59 (95% CI, 0.36-0.96) in regular users for less than 10 years, and 0.38 (95% CI, 0.16-0.92) in regular users for 10 years or more as compared with nonusers of vitamin E (p for trend = 0.004). In contrast, no significant associations were found for use of vitamin C or multivitamins. These results suggest that vitamin E supplementation could have a role in ALS prevention.