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In one study published in 2009 Asian American women
一個2009年公布的研究采訪了
who had previously been diagnosed with breast cancer
曾被診斷為乳腺癌的
were interviewed and questioned on race,
美國亞裔女性 問及的問題有種族
residential history, menstrual and reproductive history
住宅史 月經和生育史
medical and family history, anthropometrics and
病歷及家庭歷史 身體指標
cultural and religious practices.
文化及宗教信仰
Researchers also collected information about
研究者還收集每個受訪者
each participant's dietary intake of soy during
在兒童時期 青春期 和成年時期
childhood, adolescence and adulthood.
飲食中對豆類的攝入
To gather the most accurate information about
為了收集到每個受訪者
the participant's childhood intake of soy mothers
兒童時期豆類攝入的最準確信息
of participants were also questioned.
他們還采訪了這些受訪者的母親們
In many cases mothers could not be reached,
很多情況下受訪者的母親們沒法聯系上
refused participation or had already passed away.
拒絕參加 或者已經去世
In these cases only the participant's data was used.
這些情況下只能使用受訪者自己提供的資料
This chart shows the levels of intake, low, medium
這張表格顯示了人們在不同的
and high for each stage of life;
生命階段(童年 青春期和成年后)
childhood, adolescence and adulthood.
對豆類不同水平的攝入情況
The second column describes the ratio of participants
第二欄顯示了參與調查的人群中
who had breast cancer cases to the controls or women
乳腺癌患者人數與未患
who did not have breast cancer.
乳腺癌人數(即對照組)的比例
The relative risk or RR for the lowest intake at each
生命中每個階段最低攝入量的
stage of life is set at 1.0 and
相對風險值(RR)設在1.0
used as the reference value.
并被當做參考值
Intakes of medium or high amounts of soy are then
中等量或大量豆類的攝入會和
compared to 1.0. A decrease from 1.0 represents
1.0相比較 低于1.0表示患病幾率降低
a decreased risk so the smaller the decimal in
所以第三欄里的小數越小
the third column the lower the risk.
患癌幾率越低
As the chart shows increasing amounts of soy
如表格顯示的 在所有生命階段里
at all stages of life resulted in a decreased risk.
增加豆類攝入量會使患病幾率降低
But the most significant decrease is seen in medium to
但患病幾率降低最顯著的是童年時期
high intakes during childhood.
中等量至大量的豆類攝入
This suggests that the most important time to increase
這表明為了降低乳腺癌患病幾率
intake of soy in order to reduce risk of breast cancer
而增加豆類攝入量的最重要時期
is during childhood years.
是童年階段
In an article published by Dr. Helferich, an associate
赫爾弗里希博士是伊利諾伊大學
professor of nutrition at the University of Illinois and
營養學副教授 研究大豆和癌癥
who researches soy and cancer expressed his concern
他在發表的一篇文章里 表達了他對
about some negative impacts
大豆異黃酮在患癌幾率上
of soy isoflavones on cancer risk
負面作用的擔憂
His research suggests that
他的研究表明
women who have estrogen sensitive breast
患有雌激素敏感性乳腺癌的女性
cancer or breast cancer in which estrogen encourages
在雌激素的作用下 她們
growth may experience increased growth of their tumors.
乳腺內的腫瘤可能繼續增長
This is thought to be due to the fact that the
這是因為異黃酮染料木素
isoflavones genistein mimics the effects of estrogen
和雌激素的作用相似
and high levels of estrogen are associated with
而且高水平的雌激素
increased cancer proliferation.
與癌擴散的增加有關
Dr. Helferich states "over 90% of soy consumption is
赫爾弗里希博士說 "90%以上的大豆攝入
likely to be a health benefit to Americans.
很可能對美國人的健康有益
But I am concerned about the woman with
但我擔心的是雌激素依賴性
an estrogen-dependent cancer.
乳腺癌患者
She needs to be very careful about the amount
她需要對她攝入的大豆異黃酮
of soy isoflavones she consumes."
的量非常小心"
An important note is that this study was only performed
重要的一點是這項研究僅僅
in animals and not in humans so it can only raise
在動物身上做過 而沒在人身上做過
awareness of the issue not provide proof of
所以這只能提高對這一問題的意識 不能
negative effects of soy on cancer risk.
證明大豆是否對癌癥患病幾率有負面影響
