【科学60秒】干细胞也需要锻炼_英语听力练习mp3下载-科学-沪江听力酷

后台管理反馈贡献

【科学60秒】干细胞也需要锻炼

听力简介：

Hi. I’m running. I’m also telling some of my stem cells what to do right now. Well, I probably am, based on a new study with mice.

We have what are called mesenchymal stem cells. This type of stem cell goes on to become either fat or bone. Researchers found out that endurance exercise ___1___ the stem cells to ___2___mature into bone. And having more bone cells means improved blood production, which means a higher oxygen carrying capacity, and better immune reaction and better wound clotting. The research appears in the Journal of the Federation of American Societies for Experimental Biology, commonly known as the FASEB Journal.

Researchers at McMaster University in Canada had mice ___3___ on a treadmill for about an hour three times a week. A ___4___ of mice watched Matlock reruns. Well, they may as well have. They did not work out. And the mice that exercised had way less fat in their bone marrow cavities, and a big increase in blood cells in the marrow and in the ___5___. I don’t like exercising. But I really don’t like fat in my marrow.

【视听版科学小组荣誉出品】