Selenium May Help Prevent Prostate Cancer | 硒可能有助于预防前列腺癌

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Selenium May Help Prevent Prostate Cancer

Thursday 20 October 2016 – A study by Naomi E. Allen at the University of Oxford, Oxford, UK and colleagues has found that high long-term selenium intake may help prevent prostate cancer, particularly aggressive prostate cancer.

Observational studies have linked higher blood selenium levels to a lower risk of prostate cancer. The current study found an inverse association between selenium in nails and the risk of prostate cancer.

The study data came from 15 prospective studies in which participants recorded serum or toenail selenium concentrations and prostate cancer status.

Overall, blood selenium was not associated with total prostate cancer risk. However, high levels of blood selenium were associated with a lower risk of aggressive disease, and patients were more likely to die from prostate cancer. The risk can be reduced by 57%.

Nail selenium, which is associated with long-term selenium intake, was found to be associated with a significantly lower risk of total prostate cancer. The risk reduction may be as high as 71%. The risk reduction was more pronounced for invasive disease than for noninvasive disease.

Research suggests that long-term high selenium intake may help prevent aggressive prostate cancer, which is a major concern in this disease.

Note that patients with aggressive prostate cancer may be more likely to take selenium supplements than those with nonaggressive disease. In any case, the association between selenium levels and prostate cancer risk may or may not be causal, meaning that selenium intake may or may not be beneficial.

Selenium is available as a dietary supplement and is often used as an antioxidant. Foods high in selenium include Brazil nuts, tuna, shrimp, sardines, salmon, cod, mushrooms, asparagus and mustard. (David Liu) (This report was published originally on foodconsumer.org)

硒可能有助于预防前列腺癌

星期四2016年10月20日 – Naomi E. Allen在牛津大学,牛津,英国和同事进行了一项研究,发现长期高摄入硒可能有助于预防前列腺癌,特别是侵略性前列腺癌。

观察性研究将血液中较高的硒水平与较低的前列腺癌风险联系起来。当前的研究发现钉子中的硒和前列腺癌的风险之间的反向关联。

研究数据来自15项前瞻性研究,为参与者记录血清或脚趾甲硒浓度和前列腺癌状态。

总体而言,血硒与总前列腺癌的风险不相关。然而,高水平的血硒与较低的侵袭性疾病风险相关,患者更可能死于前列腺癌。风险可以降低57%。

指甲硒,其与长期摄入硒有关,被发现与总前列腺癌的风险显着降低相关联。风险的降低可能高达71%。风险降低对侵袭性疾病比非侵袭性疾病更显着。

研究表明,长期高硒摄入可能有助于预防侵略性前列腺癌,这是该疾病的主要关注。

注意,具有侵略性前列腺癌的患者可能比具有非侵袭性疾病的患者更有可能服用硒补充剂。在任何情况下,硒水平和前列腺癌的风险之间的关联可以是或可以不是因果关系,意味着摄入硒可能或可能不是有益的。

硒可作为膳食补充剂,常用作抗氧化剂。高硒食品包括巴西坚果,金枪鱼,虾,沙丁鱼,鲑鱼,鳕鱼,蘑菇,芦笋和芥末。 (David Liu)(This report was published originally on foodconsumer.org)

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