问题
单项选择题
考来烯胺降低血脂的机制主要是
A.减少食物中脂类吸收
B.激活脂蛋白脂酶
C.抑制HMG-CoA还原酶
D.抑制脂肪分解,抑制肝脏TG酯化
E.升高HDL,影响花生四烯酸代谢
答案
参考答案:A
解析:考来烯胺是碱性阴离子交换树脂,不溶于水,口服后在肠道内通过离子交换与胆汁酸结合形成不易被肠吸收的络合物,被结合的胆汁酸失去活性,减少了食物中脂类吸收从而发挥降低血脂作用。
考来烯胺降低血脂的机制主要是
A.减少食物中脂类吸收
B.激活脂蛋白脂酶
C.抑制HMG-CoA还原酶
D.抑制脂肪分解,抑制肝脏TG酯化
E.升高HDL,影响花生四烯酸代谢
参考答案:A
解析:考来烯胺是碱性阴离子交换树脂,不溶于水,口服后在肠道内通过离子交换与胆汁酸结合形成不易被肠吸收的络合物,被结合的胆汁酸失去活性,减少了食物中脂类吸收从而发挥降低血脂作用。
The telephone rang in the police station at Richmond, California , USA. “Police station? A train for Santa Fe hit a truck at the McDonald Street Crossing. Please ____21____ there at once. With an ambulance, too. A man is badly ____22_____.” said an anxious voice of a young woman. “ And you know I am the ….” “Please wait! Hi! Hi!” the policeman kept on ____23____ though the line was cut off. Within a minute , a police car and an ambulance car started off. Before long they got to the crossing, but they ___24____everything was fine. No accident, no wounded man. “What a dirty trick!” said the policeman ____25____. “ We must find out that bad___26_____ and …..”They were just talking about the _____27___when they heard the whistle of a train which was nearing them quickly. All of a sudden, a truck appeared. It came ___28_____towards them, too. When the truck was passing the crossing, it suddenly ____29___ to move on. Right then and there, before the eyes of all the policemen __30_______, the train hit the truck heavily and ___31____it dozens of meters away. When Randolph Bruce, the driver, was ___32_____ out of the damaged truck, he was seriously wounded just as the young woman had told on the phone. As he was taken to the ___33______ in time, his life was saved Later the police did whatever they could to _____34___the woman who had telephoned them. It turned out that the woman was a very excellent police officer working far in the neighboring state, who had got the first-hand ____35_____ of this crime as described above.
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