防乳癌 多攝取葉酸
【記者楊清雄/報導】
研究顯示,婦女每日攝取600微克以上的葉酸,可明顯降低罹患乳癌機率;另外,如
果婦女初經後的6年內即生第一胎,罹患乳癌的風險,也可望減少一半。
三軍總醫院蒐集226名健康女性,依每日葉酸攝取量,分為600微克以上、600~300微
克、300微克以下三組;結果發現,300微克以下組一年來罹患乳癌比率約為600微克
組的1.25倍。
依據衛生署建議,每人每日應攝取400微克(ug,千分之一毫克)葉酸。國防醫學院
公共衛生學系教授孫建安表示,這些罹患乳癌的婦女,罹病原因還待進一步調查,
但上述結果可能意味著,葉酸有助婦女預防乳癌。
孫建安表示,醫學界普遍認為,婦女在代謝女性荷爾蒙時,多半會產生些對身體不好
的副產物,研究人員初步認為,葉酸有助於減少這些產物的量,但詳細的原因還須研
究。
據了解,深色葉類蔬菜,如橄欖菜、羅曼生菜、花椰菜、蘆筍、橘類水果、全穀類產
品、麥根,以及乾豆類的花豆、蠶豆等,都含有豐富的葉酸。一般來說,5根小蘆
筍,大概就有110微克的葉酸。
此外,孫建安參與的另一項研究發現,婦女在初經後6年內生頭一胎,比起初經後10
年以上才生小孩者,罹患乳癌的機率少一半。這項調查自民國83年展開,抽樣對象主
要是台澎等地共7個鄉鎮的1萬2000名婦女。孫建安表示,國人普遍晚婚,要縮短婦女
的初經與生頭胎時間並不容易。
【2005/05/21 民生報】
http://udn.com/NEWS/LIFE/X3/2687494.shtml
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