Genetics

12:09pm

Thu May 23, 2013
Shots - Health News

Seeing Double: Errors In Stem-Cell Cloning Paper Raise Doubts

Biologist Shoukhrat Mitalipov stands outside the monkey enclosure at his lab in Oregon. He says the mistakes in his recent paper were caused by the rush to publish quickly.
Richard Clement Reuters /Landov

This feels a bit like deja vu.

Scientists report a major breakthrough in human stem-cell research. And then just a week later, the findings come under fire.

Biologists at Oregon Health & Science University said May 15 that they had cloned human embryos from a person's skin cell.

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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.

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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.

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10:23am

Wed May 15, 2013
Shots - Health News

Scientists Clone Human Embryos To Make Stem Cells

Originally published on Thu May 16, 2013 9:57 am

A scientist removes the nucleus from a human egg using a pipette. This is the first step to making personalized embryonic stem cells.
Courtesy of OHSU Photos

Scientists say they have, for the first time, cloned human embryos capable of producing embryonic stem cells.

The accomplishment is a long-sought step toward harnessing the potential power of embryonic stem cells to treat many human diseases. But the work also raises a host of ethical concerns.

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8:19am

Tue May 14, 2013
Shots - Health News

Angelina Jolie And The Rise Of Preventive Mastectomies

Originally published on Wed May 15, 2013 11:03 am

In sharing her decision to have a double mastectomy, Angelina Jolie has given voice to a dilemma more women are facing.
Carlo Allegri AP

Angelina Jolie just became part of a medical trend: More women are deciding to have their breasts removed to reduce the risk of cancer.

Over the past decade, doctors have noticed a big increase in the number of women choosing prophylactic, or preventive, mastectomies.

Some, like Jolie, have a genetic mutation that makes it much more likely that they will have breast cancer. Her mother died of the disease at age 56. Jolie is 37. She wrote about her decision in The New York Times.

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