The first is due to the significantly lower incidence
第一個原因是亞洲國家
of cancer in Asian countries and their high consumption
癌癥發病率很低 而他們食用
of soy products.
很多豆制品
Researchers believe there may be a link between
研究者們認為這兩者之間
these two facts.
可能有某種聯系
When Asians migrate to the US their risk of cancer
亞洲人移民到美國后 他們患癌癥的幾率
increases over several generations to approach
在幾代人之后有所上升
that of US white citizens.
接近美國白人的癌癥患病幾率
This demonstrates that genetics is not the main factor
這證明基因不是亞洲國家
in the lower occurrences of cancer in Asian countries.
癌癥低患病率的主要原因
The second reason is that soy contains components
第二個原因是大豆含有
called isoflavones which have been observed to
叫異黃酮的成分 經觀察 異黃酮在
either mimic or counter the effects of estrogen
特定條件下要么和雌激素的作用相仿
under certain conditions.
要么和雌激素的作用相反
This has actually caused much concern about the safety
這實際上引起了人們對
of soy products for women with a high risk for
乳腺癌患病高危女性或乳腺癌患者
breast cancer or women who have breast cancer.
食用豆制品安全性的擔憂
However most of these concerns have stemmed from data
但大多的擔憂都來自于嚙齒動物
collected during rodent and cell culture experiments.
和細胞培養的實驗中所收集的數據
Other studies in humans have shown that isoflavones
其他對人體的研究顯示異黃酮
may have a protective effect on cancer of the breast.
可能對乳腺癌有預防作用
When deciding what information is creditable and true
在考慮什么信息比較真實可靠時
it is important to understand which websites
搞清楚什么網站值得信任
you can trust.
很重要
Many websites contain information stating the benefits
很多網站都有大豆對于癌癥的益處的信息
of soy in reference to cancer and many others you may
而你可能發現很多其他網站
find will say the opposite. It is common to start with
的說法恰恰相反 最常見的做法是
the google search when researching a topic of interest.
在研究自己感興趣的課題時先用谷歌搜索
Often Wikipedia is one of the top sites and both google
維基百科經常是最常用的幾個網站之一
and Wikipedia are fine to use when looking up
而且在查詢基本信息時
general information such as what soy is.
比如大豆是什么 谷歌和維基百科都可以用
Many times it can even be helpful in determining
很多時候這甚至對于你挑選
what subtopics you may need to research further.
可能要深入研究的子課題有幫助
But you should be cautious with many sites found
但你應該謹慎對待很多在谷歌和維基百科上
on google and Wikipedia because anyone can post
找到的網站 因為任何一個人都可以在
information to the internet and claim it as true.
互聯網上上傳信息 并聲稱它是真實的
How do you know if it is true?
你怎么知道它是否是真實的呢?
Look for .org, .edu and .gov website sources
找網址中含".org"".edu"和".gov"的網站資源
because those tend to be more credible,
因為那些網站往往更可信
especially when looking for more specific information
尤其是在查詢像營養價值和副作用
such as nutritional benefits and side effects.
這樣的更具體的信息時
Finally virtually all reliable websites have a link to
最后 實際上所有可信的網站
the original source of their information usually
都有原始資料來源的鏈接
in the form of a journal article.
通常是期刊文章的形式
Click the link, read the abstract and see for yourself
點擊這個鏈接 讀讀摘要 看看你
if you believe and understand the site's claims.
是否相信和理解網站上所說的
It is important to get to the original source of any
獲得你在互聯網上找到的任何
information you find on the internet and if you cannot
信息的原始來源很重要 如果你無法
locate or identify the author it is best to consider
找到或者確定作者
that site unreliable.
最好別相信那個網站
Following the previous slide's guide many studies
接著之前的演示說 許多有關
concerning soy and cancer were identified
大豆和癌癥的研究
with a specific focus on breast cancer.
都特別關注乳腺癌