ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "stem cells"

Guest Blog

Physician-Scientists: The Newest Endangered Species

Painting by Vincent van Gogh

Can excellent scientists be excellent physicians at the same time? “I would like to ask you about a trip to Thailand.” This is not the kind of question I expected from a patient in my cardiology clinic at the Veterans Administration hospital in Indianapolis. Especially since this patient lived in rural Indiana and did not [...]

Keep reading »
Observations

Cultured Beef: Do We Really Need a $380,000 Burger Grown in Petri Dishes?

cultured-beef-patty

For the first time, the public has been treated to the spectacle of lab-grown meat cooked and eaten via live Webcast. Backed by Google billionaire Sergey Brin, Dutch tissue engineer Mark Post unveiled his “cultured beef” at a press event on August 5, answering the question posed by a 2011 Scientific American feature: “When Will [...]

Keep reading »
Observations

Has Mariusz Ratajczak Found the Holy Grail of Stem Cells?

stem cells

So many controversies about stem cells have flared and died away over the past decade that it can be hard to keep track of them all. The most recent contretemps, as evidenced by reports in the scientific press here, here and here, is about an exceedingly rare (and perhaps non-existent) group of diminutive cells called [...]

Keep reading »
Observations

Scientists Use 3-D Printer to Speed Human Embryonic Stem Cell Research

stem cell

Every week, it seems, there’s a new breakthrough in 3-D printing that promises us the ability to (eventually) fabricate some new thing in one of those glass-walled wonder boxes. Such things have included everything from spare parts for the International Space Station above to the beef on our dinner plates to the organs inside our [...]

Keep reading »
Observations

Baby Mice Born from Eggs Made from Stem Cells

mouse egg stem cell babies

Stem cells have been coaxed into creating everything from liver cells to beating heart tissue. Recently, these versatile cells were even used to make fertile mouse sperm, suggesting that stem cell technology might eventually be able to play a role in the treatment of human infertility. Now two types of stem cells have been turned [...]

Keep reading »
Observations

Dogma Overturned: Women Can Produce New Eggs [Video]

A study led by Jonathan Tilly of the Massachusetts General Hospital overturns the decades-long idea that women are born with all the eggs they will ever have. It reports that women of reproductive age carry ovarian stem cells, meaning that they can produce new eggs. Tilly’s team, which made a similar finding in mice in [...]

Keep reading »
Observations

Second human embryonic stem cell trial cleared by FDA

An embryonic stem cell treatment for a rare inherited form of blindness was approved Monday for clinical trials. This is only the second human embryonic stem cell-based trial to be approved by the U.S. Food and Drug Administration (FDA)—the first started last month with a Geron Corp. trial that is assessing the use of such [...]

Keep reading »
Observations

Stem cell research faces uncertain future after the elections

elections stem cell research funding

NEW YORK—With a Republican majority getting set to move into the House of Representatives in January—and fewer Democrats returning to the Senate—the upcoming lame-duck congressional session might be a key window for securing the future of stem cell research in the U.S. After a surprise August injunction—and the subsequent, still-in-effect stay—on federally funded stem cell [...]

Keep reading »
Observations

Expectations for stem cells undergo some reprogramming at annual research meeting

reprogramming adult stem cells better

NEW YORK—Despite a cloud of regulatory uncertainty hanging over the U.S. stem cell research field, many young scientists spoke excitedly about their research Wednesday afternoon at the New York Stem Cell Foundation’s annual Translational Stem Cell Research Conference here at The Rockefeller University. Some of the most recent big-news breakthroughs have come in the realm [...]

Keep reading »
Observations

Adult stem cells retain cellular memory of original tissue

embryonic stem cells which have genetic differences from ips cells

Curious differences in gene expression between reprogrammed adult stem cells, called induced pluripotent stem cells (iPS cells), and the embryonic stem cells that the former are designed to mimic might now be explained by a new discovery about just how much information a "reprogrammed" adult stem cell retains. Two new studies describe the extent to [...]

Keep reading »
Observations

NIH approves first new stem cell lines for funding since 2001

new line embryonic stem cell approved

The National Institutes of Health (NIH) gave approval Wednesday for 13 new lines of human embryonic stem cells to be made available to federally funded researchers. The decision ends a logjam that resulted from a Bush administration policy banning government-backed research on lines created after August 9, 2001. President Barack Obama lifted those restrictions in [...]

Keep reading »
Talking back

Mini Brains and Human–Mouse Hybrids Could Reveal the Brain’s Wiring Diagram

The Obama administration’s neuroscience initiative highlights new technologies to better understand the workings of brain circuits on both a small and large scale. Various creatures, from roundworms to mice, will be centerpieces of that program because the human brain is too complex—and the ethical issues too intricate—to start analyzing  the actual human organ in any [...]

Keep reading »

More from Scientific American

Scientific American Holiday Sale

Give a Gift &
Get a Gift - Free!

Give a 1 year subscription as low as $14.99

Subscribe Now! >

X

Email this Article

X