Conclusion Endogenous retinal stem cells can be activated in the photoreceptor layer of RCS rat retina during the onset and development of retinitis pigmentosa.

结论RCS大鼠变性过程中视网膜感光细胞层出现视网膜干细胞激活。

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Objective To investigate the viability and the characters of proliferation and differentiation of retinal stem cells (RSCs) after cryopreservation and anabiosis.

目的研究视网膜干细胞冻存复苏后的成活率及再培养后的增生分化特性。

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To mimic early stage retinal development, the researchers needed to build microscopic gradients for solutions in which to bathe the stem cells to initiate specific differentiation paths.

为了模拟视网膜发育的早期阶段，研究人员需要构建出浓度梯度差异极其细微的溶液来培养细胞以使它们向不同的途径分化。

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To get human retinal cells at the same stage of development, however, would involve taking stem cells from a foetus during the second trimester of pregnancy.

BBC: NEWS | Health | Cell transplants 'restore sight'

He said the aim now would be to look at adult stem cells to see if they could be genetically altered to behave like the mouse retinal cells.

BBC: NEWS | Health | Cell transplants 'restore sight'