科学家发现黑巧克力保护心脏奥秘

　　Researchers recruited 16 healthy non-smoking volunteers for the study. Two days before the study they were not allowed to eat chocolate or anything containing similar compounds, including many berries, nor could they drink coffee, tea, or wine. Everyone in the group gave a blood sample both before and after eating 75 grams of unsweetened chocolate with a cocoa content of 72 percent.

　　研究人员们招募了16名志愿者，他们均不吸烟。在实验开始的两天前，这些志愿者不得吃巧克力以及任何含有相似成分的食物（包括各种浆果），也不能喝咖啡、茶或者酒类。实验开始，每个人进行了血液样本检测，然后服用75克无糖巧克力（和谐含量达72%），随后再进行一次血液样本检测。

资料图：科学家发现黑巧克力保护心脏奥秘

　　Scientists found ACE enzyme activity was reduced by 18 percent three hours after the cocoa dose. This is comparable to the effect of drugs that inhibit ACE and are used as a first-choice treatment for high blood pressure.

　　科学家们发现，一种叫做血管紧张素转换酶的酶类活性在志愿者服用和谐三小时后降低了18%。这样的效果几乎可与此前抑制血管紧张素转换酶活性、并用来治疗高血压的首选药物效果相匹敌。

　　Drug researcher Ms. Persson said: "Our findings indicate that changes in lifestyle with the help of foods that contain large concentrations of catechins and procyaninides prevent cardiovascular diseases."

　　药物研究人员帕森女士称：“这些发现表明了，食用含有高浓度儿茶酚及前花青素的食物有助于人们远离降低心血管疾病。”