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科学家研发出了一种人造子宫,可以帮助早产儿在子宫外存活。目前,这种“生物袋”系统已经成功运用在小羊羔身上,并将在5年内进行人体试验。
在这种装置里,婴儿被一种类似于羊水的液体包围,并且可以像在母亲肚子里一样通过脐带呼吸。在传统的恒温箱中,婴儿要靠自己尚未发育完全的肺进行呼吸。这通常会引起肺部感染,导致早产儿死亡。而液态环境要比恒温箱更容易保持无菌状态。美国费城儿童医院胎儿研究中心主任Alan Flake博士表示,这一系统可以帮助早产儿预防严重的疾病。
在羊羔试验中,羊宝宝可以正常地呼吸,吞咽,睁眼,长毛,神经和器官也得到了很好的发育。
不过,Flake博士还表示,在胎儿发育的早期阶段,没有任何技术可以代替母体子宫。羊宝宝和人类婴儿之间存在着显著差异。羊的发育更快,且体型要比人类婴儿大。因此,将这项技术应用于人类仍然是不小的挑战。(中国青年网编译报道)
责任编辑:孙鑫鑫 CN066
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