據(jù)國外媒體8日報道，美國一項最新研究發(fā)現(xiàn),，魚油有助于保護(hù)女性免受乳腺癌之苦,。科學(xué)家稱,，那些每天補充魚油的人,，患乳腺癌的風(fēng)險可降低三分之一。
長期以來人們一直認(rèn)為魚油對健康有好處,，例如可提高智力,，但這是第一次把它與降低乳腺癌風(fēng)險聯(lián)系在一起。西雅圖佛瑞德·哈奇森癌癥研究中心對3.5萬名女性進(jìn)行研究,，結(jié)果發(fā)現(xiàn)那些經(jīng)常補充魚油的人,，發(fā)展成乳腺癌的風(fēng)險比其他人低32%。該中心的研究人員指出,，補充物里所含的歐米加-3脂肪酸,，可以降低患一些最常見疾病的風(fēng)險，例如浸潤性導(dǎo)管乳腺癌,。
這種腫瘤生長在與乳腺相連的導(dǎo)管內(nèi),，英國每年被診斷出的4.5萬名乳腺癌患者中，有多達(dá)80%的人患的是浸潤性導(dǎo)管乳腺癌,。這一研究成果發(fā)表在《癌癥流行病生物標(biāo)記與預(yù)防》雜志上,，該研究的領(lǐng)導(dǎo)者艾米麗·懷特博士說：“這可能是因為魚油補充物里所含的歐米加-3，比大部分人從日常飲食中獲得的這種物質(zhì)更多,。在研究沒得到證實前,，我們還不能就其因果關(guān)系下結(jié)論。”
哈佛大學(xué)公共衛(wèi)生學(xué)院的營養(yǎng)學(xué)及流行病學(xué)教授愛德華·古范奇尼索說：“僅憑一項研究就下結(jié)論,，建議人們該如何做,，這種情況非常少見。”哈佛大學(xué)的科學(xué)家目前正在設(shè)法確定魚油是否能降低癌癥,、心臟病和中風(fēng)風(fēng)險,。今年早些時候，加州大學(xué)舊金山分校的科學(xué)家發(fā)現(xiàn)魚油對延長細(xì)胞的壽命具有直接影響后,，這種物質(zhì)被人們奉為“長生不老藥”,。英國食品標(biāo)準(zhǔn)局建議消費者每周至少吃一份含油脂多的魚。(生物谷Bioon.net)
生物谷推薦原文出處：
Cancer Epidemiology, Biomarkers & Prevention July 2010 19; 1696
doi: 10.1158/1055-9965.EPI-10-0318
Specialty Supplements and Breast Cancer Risk in the VITamins And Lifestyle (VITAL) Cohort
Theodore M. Brasky1,2, Johanna W. Lampe1,2, John D. Potter1,2, Ruth E. Patterson3 and Emily White1,2
Background: Use of nonvitamin, nonmineral “specialty” supplements has increased substantially over recent decades. Several supplements may have anti-inflammatory or anticancer properties. Additionally, supplements taken for symptoms of menopause have been associated with reduced risk of breast cancer in two case-control studies. However, there have been no prospective studies of the association between the long-term use of these supplements and breast cancer risk.
Methods: Participants were female members of the VITamins And Lifestyle (VITAL) Cohort. Postmenopausal women, ages 50 to 76 years, who were residents of western Washington State, completed a 24-page baseline questionnaire in 2000 to 2002 (n = 35,016). Participants were queried on their recency (current versus past), frequency (days/week), and duration (years) of specialty supplement use. Incident invasive breast cancers (n = 880) from 2000 to 2007 were obtained from the Surveillance, Epidemiology, and End Results registry. Multivariable-adjusted hazards ratios (HR) and 95% confidence intervals (95% CI) were estimated by Cox proportional hazards models.
Results: Current use of fish oil was associated with reduced risk of breast cancer (HR, 0.68; 95% CI, 0.50-0.92). Ten-year average use was suggestive of reduced risk (P trend = 0.09). These results held for ductal but not lobular cancers. The remaining specialty supplements were not associated with breast cancer risk: Specifically, use of supplements sometimes taken for menopausal symptoms (black cohosh, dong quai, soy, or St. John's wort) was not associated with risk.
Conclusions: Fish oil may be inversely associated with breast cancer risk.
