Objective To explore the ethical problems of human embryonic stem cells research.

探讨玻璃化冷冻方法保存人类胚胎干细胞的效率。

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Two research teams in the US and Japan have made embryonic stem cells – or something very like them – directly from human skin cells, without having to destroy an embryo in the process.

美国和日本的两个研究小组已直接从人体皮肤细胞中提取出胚胎干细胞（或非常类似的细胞），同时在这一过程中没有破坏胚胎。

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And the availability of IPS cells neither obviates the need for embryonic stem cell research nor replaces human subjects.

IPS细胞的实用性既没有消除胚胎干细胞研究的需求，也没有替代人体受试者。

youdao

In March, President Obama ended restrictions on the use of federal money for research using human embryonic stem cells.

VOA: special.2009.04.07

Research involving human embryonic stem cells and human non-embryonic stem cells has the potential to lead to better understanding and treatment of many disabling diseases and conditions.

WHITEHOUSE: THE WHITE HOUSE

During the six years he ran the NIH under George W. Bush, Zerhouni, a pioneering radiologist raised and educated in Algeria, set the first rules for funding research on human embryonic stem cells and banned NIH scientists from taking big industry consulting fees.

FORBES: Magazine Article

The research team, led by Robert Lanza, took human embryonic stem cells and coaxed them into becoming RPE cells.

FORBES: Embryonic stem cells: can we make the blind see?