CNCAO NEWS On the evening of April 27,Beijing time,China's first cargo ship“Tianzhou-1”fly the mission successfully,completing missions of space laboratory.Zhejiang University Wang Jinfu team is observing and analyzing the space images of human bone mesenchymal stem cells(hMSCs),this experiment will explain the loss of human bone calcium mechanism in the zero gravity of space,and scientists will find the prevention and treatment of osteoporosis,on the basis of experiment.

 

　　宇航員在經歷了一段時間的太空飛行回到地球後，往往會感覺“腿軟”，難以站立，這是因為航太員的身體出現了骨鈣的大量流失。

 

　　When turn back to earth after flying for a period of time in space,astronauts often feel weak in the legs and difficult to stand,because the astronaut has loss of bone calcium.

 

　　在正常情況下，人體內的骨質總是保持著動態平衡，生成量和流失量基本一致。但在太空微重力環境下，這一平衡被打破，骨質疏鬆是宇航員普遍面臨的問題。

 

　　Under normal circumstances,bones in the human body is always maintained a dynamic balance,the amount of production and loss is basically the same.But in the space zero gravity environment,the balance is broken,osteoporosis is the general problem happened to astronauts.

 

　　“宇航員的骨質疏鬆是由於骨量丟失增加和生成量的減少共同造成的。”浙江大學生命科學學院教授王金福説。去年，王金福團隊就將一批人骨髓間充質幹細胞送上“實踐十號”微重力科學實驗衛星，研究人員分析發現，經歷過太空飛行的幹細胞不能夠分化成骨細胞，轉而分化成脂肪細胞。

 

　　“The osteoporosis of astronauts is caused by bone loss increasing and production reducing."Wang Jinfu,a professor of the College of Life Science in Zhejiang University said.Last year,Wang Jinfu team sent a group of MSCs to the“SJ-10"zero gravity Scientific Experiment Satellite.The researchers found that experienced space flight stem cells can not differentiate osteoblasts,and then into fat cell.

 

　　研究人員表示，由於骨質生成的速度較慢，即便是宇航員返回地面，骨質疏鬆的症狀還會持續較長一段時間。

 

　　Researchers said that because of the slow pace of bone formation,even astronauts return to the ground,osteoporosis symptoms will continue for a long time.

 

　　王金福説，雖然研究人員對宇航員“骨質疏鬆”的現象已經有了科學結論，但幹細胞定向分化為骨細胞的過程，還一直沒有在真正的太空環境中得到詳細觀察，本次天舟一號上的實驗就將對幹細胞進行7天時間的“天地”對照觀察。

 

　　Wang Jinfu said that although the researchers came to a scientific conclusion of astronauts“osteoporosis”phenomenon,but the process of stem cell differentiating into bone cells,has not observed in detail in the real space environment.The experiment in“Tianzhou-1”will have a control observation-"Space and Earth"on the stem cells for 7 days.

 

（中國網作者 鄧一鳴綜合報道 袁旭寧/譯）