复明新希望：干细胞角膜

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A Japanese committee has provisionally approved the use of reprogrammed stem cells to treat diseased or damaged corneas.

日本一个委员会临时批准了使用重新编程的干细胞来治疗病变或受损的眼角膜。

Researchers are now waiting for final approval from the health ministry to test the treatment in people with corneal blindness, which affects millions of people around the world.

研究人员目前正在等待卫生部的最终批准，以测试这种疗法在角膜失明患者身上的效果，这将会影响全球数百万患者。

The cornea, a transparent layer that covers and protects the eye, contains stem cells that repair it when damaged.

角膜是覆盖和保护眼睛的透明层，它含有干细胞，可以在受损时用来修复眼睛。

But these can be destroyed by disease or by trauma from chemicals or burns, which can result in patients losing their vision.

但是这些细胞可以被疾病，化学物质或烧伤造成的创伤所破坏，从而可能导致病人失明。

Currently, cornea transplants from donors who have died are used to treat damaged or diseased corneas, but good-quality tissue is scarce.

目前，死亡捐赠者的角膜移植被用来治疗受损或病变的角膜，但高质量的组织是稀缺的。

A team led by ophthalmologist Kohji Nishida at Osaka University plans to treat damaged corneas using sheets of tissue made from induced pluripotent stem cells.

大阪大学眼科医生西田浩二领导的一个研究小组计划用诱导多能干细胞制成的组织薄片来治疗受损的眼角膜。

These are created by reprogramming cells from a donor into an embryonic-like state that can then transform into other tissue, such as corneal cells.

它们是通过将供体细胞重新编程成胚胎样状态而产生的，然后胚胎样状态可以转化为其他组织，比如角膜细胞。

Nishida’s team plans to lay 0.05-millimetre-thick sheets of corneal cells across patients’ eyes.

西田的研究小组计划在病人的眼睛上放置0.05毫米厚的角膜细胞片。

Animal studies have shown that this can save or restore vision.

动物研究表明，这可以挽救或恢复视力。

The health ministry is expected to decide soon.

预计卫生部将很快做出决定。

If Nishida and his team receive approval, they will treat four people, whom they will then monitor for a year to check the safety and efficacy of the treatment.

如果西田浩二和他的团队获得批准，他们将治疗四名患者，然后对他们进行为期一年的监测，以检查治疗的安全性和有效性。

The first treatment is planned to take place before the end of July.

第一次治疗计划在7月底之前进行。

Other Japanese researchers have carried out clinical studies using induced pluripotent stem cells to treat spinal cord injury, Parkinson's disease and another eye disease.

其他的日本研究人员已经利用诱导多能干细胞进行的临床研究，主要用于治疗脊髓损伤、帕金森病和另一种眼病。

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问题

文中没有提到这种干细胞制成的角膜片的什么信息呢？

A.厚度

B.动物实验

C.用途

D.价格

留言回复正确选项，前十名朋友可获得红包哦！赶快来试试吧！

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