Stem cells Stem cells

Isabella Beukes, of Santa Rosa, Calif., has been legally blind for more than 40 years. An experimental treatment derived from embryonic stem cells seems to have enabled her now to see not just color but also some shapes. Tim Hussin for NPR hide caption

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Tim Hussin for NPR

Embryonic Stem Cells Restore Vision In Preliminary Human Test

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The heart beats in a mouse embryo grown with stem cells made from blood. Now the research that claimed a simple acid solution could be used to create those cells has been retracted. Courtesy of Haruko Obokata hide caption

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Courtesy of Haruko Obokata

Easy Method For Making Stem Cells Was Too Good To Be True

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New research could be promising for infertile men. Scientists were able to make immature sperm cells from skin cells. Their next challenge is to make that sperm viable. iStockphoto hide caption

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iStockphoto

'Provocative' Research Turns Skin Cells Into Sperm

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A cross-section of skeletal muscle in this light micrograph shows the individual, parallel muscle fibers (red). These fibers work in concert to power movement. Thomas Deerinck, NCMIR/ScienceSource hide caption

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Thomas Deerinck, NCMIR/ScienceSource

Experimental Technique Coaxes Muscles Destroyed By War To Regrow

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This mouse egg (top) is being injected with genetic material from an adult cell to ultimately create an embryo — and, eventually, embryonic stem cells. The process has been difficult to do with human cells. James King-Holmes/Science Source hide caption

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James King-Holmes/Science Source

First Embryonic Stem Cells Cloned From A Man's Skin

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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 hide caption

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Eugene Hoshiko/AP

A mouse embryo grows from stem cells made by stressing blood cells with acid. The blood cells are tagged with a protein that creates green light. Courtesy of Haruko Obokata hide caption

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Courtesy of Haruko Obokata

A Little Acid Turns Mouse Blood Into Brain, Heart And Stem Cells

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Maybe someday Jerry won't be laughing at George's follicularly challenged scalp. But despite scientific advances there's still no cure for baldness. NBC/NBC via Getty Images hide caption

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NBC/NBC via Getty Images

"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 hide caption

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Courtesy of Takanori Takebe/Yokohama City University Graduate School of Medicine

Scientists Grow A Simple, Human Liver In A Petri Dish

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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 hide caption

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Nati Harnik/AP

Cloning, Stem Cells Long Mired In Legislative Gridlock

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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 hide caption

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http://www.flickr.com/photos/ohsunews/8726915230/in/photostream//Courtesy of OHSU Photos

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 hide caption

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Courtesy of OHSU Photos

Scientists Clone Human Embryos To Make Stem Cells

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