umbilical cords

Umbilical cord blood stem cells used to successfully treat spinal injury.
This is a hopeful story- as umbilical cord stem cells are very much less controversial, ethically, than embryonic. Here's Yahoo News:

Hwang Mi-Soon, 37, had been bedridden since damaging her back in an accident two decades ago.

Last week her eyes glistened with tears as she walked again with the help of a walking frame at a press conference where South Korea researchers went public for the first time with the results of their stem-cell therapy.

They said it was the world's first published case in which a patient with spinal cord injuries had been successfully treated with stem cells from umbilical cord blood.

Though they cautioned that more research was needed and verification from international experts was required, the South Korean researchers said Hwang's case could signal a leap forward in the treatment of spinal cord injuries.
...
Medical research has shown stem cells can develop into replacement cells for damaged organs or body parts. Unlocking that potential could see cures for diseases that are at present incurable, or even see the body generate new organs to replace damaged or failing ones.

So-called "multipotent" stem cells -- those found in cord blood -- are capable of forming a limited number of specialised cell types, unlike the more versatile "undifferentiated" cells that are derived from embroyos.

However, these stem cells isolated from umbilical cord blood have emerged as an ethical and safe alternative to embryonic stem cells.

Clinical trials with embryonic stem cells are believed to be years away because of the risks and ethical problems involved in the production of embryos -- regarded as living humans by some people -- for scientific use.

In contrast, there is no ethical dimension when stem cells from umbilical cord blood are obtained, according to researchers.

Additionally, umbilical cord blood stem cells trigger little immune response in the recipient as embryonic stem cells have a tendency to form tumors when injected into animals or human beings.

For the therapy, multipotent stem cells were isolated from umbilical cord blood, which had been frozen immediately after the birth of a baby and cultured for a period of time.

Then these cells were directly injected to the damaged part of the spinal cord.

Still- no ethical dimension? I'm guessing ethics still comes in.