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天舟一号上天的特殊任务:研究如何对付骨质疏松

2017-04-30 10:21:05   

那么,为什么一定要去太空研究抗骨质疏松药物?专家表示,这是因为在地面上已经通过模拟失重状态的方法进行了一些实验,但是航天员在航天飞行时所处的环境及所受的影响比较复杂,地面模拟实验是无法完全模拟的。利用天舟一号所提供的空间真实微重力环境,可以研究骨质流失干预药物3HB在真实太空微重力环境下的成骨作用;同时,通过对比地面模拟失重和太空真正失重两套系统得到的数据,可以做出更为准确的判断,对微重力模拟实验领域的研究方法提供一些新的看法和建议。

我国骨质疏松症患者

现有约9000万

宇航员因为失重环境而无法正常产生骨钙;地球上的人,随着年龄增长,同样会出现“腿软”的问题。因为,目前全世界的补钙产品,都还不能真正有效地帮助骨钙产生。而在骨钙既不能正常生成又在不断流失的情况下,仅仅通过锻炼是不够的。

一个事实可以证明这一说法。从2015年3月27日开始的340天,美国航天局宇航员斯考特·凯利在国际空间站工作了近一年。这一年,他成了网红——几乎每天在社交平台上和地球上的人们互动。除了拍摄地球上各个角落的图片,展示空间实验,他展示最多的是他“练块儿”的照片。但就算练出马甲线、人鱼线,斯考特大叔也只能暂缓外太空中骨细胞急剧减少的状况。回到地面后还是有好几天他是站不起来的。

就算你此生不想去太空,你在地球上也有可能面临同样的窘境。据统计,我国现约有9000万骨质疏松症患者,60岁以上老年人的骨质疏松发生率达56%,绝经后妇女更是高达60%至70%。有专家认为,随着人口的日益老龄化,骨质疏松症的发病率还会同步增长,预计到2050年将可能激增至2亿多人。

骨质疏松症是一种全身性代谢骨病,表现主要为疼痛、身材变矮、易发生骨折,这是目前世界上绝经后妇女、中老年人中发病率、死亡率及保健费用消耗较大的疾病之一。它也被称为“无声杀手”,是因为人们无法感觉到骨质的慢慢流失,多数人没有明显症状,而随着年龄增加,骨钙在不断流失,其巨额防治费用以及患者在日常生活中对家庭成员的依赖,将给社会造成沉重的负担。

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