Final Rules Broaden Pool for Stem Cell Research

Stem cell research received a boost in January when the U.S. Food and Drug Administration approved the first-ever human trial using embryonic stem cells as a medical treatment. Geron Corp., a California-based biotech company, was given permission to implant embryonic stem cells in eight to 10 paraplegic patients who can use their arms but cannot walk.

The new guidelines take effect Tuesday. The NIH will create and make available a registry of approved stem cell lines.

"There will be an opportunity to work with a lot more cells under these guidelines," Sanberg said. "But as scientists, we clearly need to continue to think about the ethical issues."

National polls continue to find that the majority of Americans favor embryonic stem cell research, although some surveys have found that support has declined somewhat in recent years.

Many people object to the use of embryonic stem cells, contending that the research requires the destruction of potential life because the cells must be extracted from human embryos.

More information

The U.S. National Institutes of Health has more on the new stem cell guidelines.