Stem Cells

11:33am

Tue April 1, 2014
Shots - Health News

Fraud Found In Study Claiming Fast, Easy Stem Cells

Originally published on Wed April 2, 2014 6:04 am

Ryoji Noyori, a Nobel Prize-winning chemist and president of Japan's prestigious RIKEN research institute, bows at a news conference in Tokyo Tuesday to apologize for the scientific misconduct of a RIKEN colleague.
Eugene Hoshiko AP

What is it with stem cell research? Despite solid science from many corners, the scandals never seem to stop. In this case, after a lofty international announcement in January, it only took about two months for the other shoe to drop.

A scientific committee in Japan said Tuesday that the lead author of a recent "breakthrough study" fabricated data and is guilty of scientific misconduct.

Read more
Tags: 

2:52pm

Wed July 3, 2013
Shots - Health News

Scientists Grow A Simple, Human Liver In A Petri Dish

Originally published on Thu July 4, 2013 7:48 am

"Liver buds" grow in petri dishes. The rudimentary organs are about 5 mm wide, or half the height of a classic Lego block.
Courtesy of Takanori Takebe/Yokohama City University Graduate School of Medicine

Japanese scientists have cracked open a freaky new chapter in the sci-fi-meets-stem-cells era. A group in Yokohama reported it has grown a primitive liver in a petri dish using a person's skin cells.

The organ isn't complete. It's missing a few parts. And it will be years --maybe decades — before the technique reaches clinics.

Read more
Tags: 

11:14am

Wed June 12, 2013
Shots - Health News

Chopped: How Amputated Fingertips Sometimes Grow Back

Originally published on Thu June 13, 2013 1:38 pm

A little bit of nail can help a fingertip regrow.
Heather Rousseau NPR

When a kid lops off a fingertip with a cleaver or car door, there's a chance the end of the digit will grow back. The fingerprint will be gone, and the tip may look a bit strange. But the flesh, bone and nail could return.

Now biologists at New York University have figured out just how this lizard-like regeneration happens in mice. There's some secret sauce at the nail cuticle that makes it possible, scientists report Wednesday in the journal Nature.

Read more
Tags: 

1:04am

Thu May 16, 2013
Shots - Health News

Cloning, Stem Cells Long Mired In Legislative Gridlock

Originally published on Thu May 16, 2013 9:53 am

After President Obama overturned Bush-era policy restricting federal funding of embryonic stem cell research in 2009, Nebraska Right to Life led a protest of the research outside the University of Nebraska regents' meeting.
Nati Harnik AP

The news that U.S. scientists have successfully cloned a human embryo seems almost certain to rekindle a political fight that has raged, on and off, since the announcement of the creation of Dolly the sheep in 1997.

Read more

1:16pm

Wed May 15, 2013
Shots - Health News

How Researchers Cloned Human Embryos

Originally published on Wed May 15, 2013 2:49 pm

Human embryos grow in a petri dish two days after scientists in Oregon cloned them from a donor's skin cell.
http://www.flickr.com/photos/ohsunews/8726915230/in/photostream/ Courtesy of OHSU Photos

Scientists in Oregon have achieved something that many thought might be impossible.

They said Wednesday that they have cloned human embryos and then harvested the embryo's stem cells.

The discovery, if it holds up, means scientists would be able to make personalized stem cells, with their genetic code almost perfectly matched to that of a patient.

Read more

Pages