Co-author of stem-cell study 'loses faith' in paper

After claiming to have developed a novel technique for coaxing the growth of stem cells in an acid bath, Japanese researchers have come under scrutiny for apparent irregularities. In the latest twist, one of the paper's coauthors has admitted that the study should be retracted. » 3/11/14 12:20pm 3/11/14 12:20pm

New research suggests women can make sperm, and men can make eggs

What started as an investigation into developmental mouse biology has become a lot more than that. Biologist Katsuhiko Hayashi discovered a way to turn mouse skin cells into sperm and egg cells — and actually used these modified cells to create a living baby mouse. The question is, can it work in humans? » 8/21/13 4:26pm 8/21/13 4:26pm

Toddler with bioengineered windpipe dies three months after surgery

Two year-old Hannah Warren passed away this past Saturday at the Children’s Hospital of Illinois. Born without a trachea, she was the youngest recipient of a bioengineered organ — one that was grown from her very own stem cells. She will be remembered as a pioneer in regenerative medicine. » 7/09/13 2:39pm 7/09/13 2:39pm

How to grow a human heart in three (relatively) easy steps

The day is fast approaching when scientists will finally be able to reconstruct a person's heart from a clump of cells and a simple scaffold. We're not there yet, but this video will show you how it's done. » 7/04/13 6:30am 7/04/13 6:30am

Could this be the secret to limb regrowth in humans?

Cut off part of an amphibian, and it'll regrow. But humans and other mammals can only regrew the very tips of our fingers and toes, if they're cut off. But the mechanism that makes that small feat happen could be the key to unlocking the secret of full limb regeneration in humans. » 6/13/13 4:30pm 6/13/13 4:30pm

A 3D Printer That Generates Human Embryonic Stem Cells

3-D printers can produce gun parts, aircraft wings, food and a lot more, but this new 3-D printed product may be the craziest thing yet: human embryonic stem cells. Using stem cells as the "ink" in a 3-D printer, researchers in Scotland hope to eventually build 3-D printed organs and tissues. A team at Heriot-Watt… » 2/05/13 2:56pm 2/05/13 2:56pm

Woman undergoes untested stem-cell wrinkle treatment, sprouts bones in …

Let it be said that stem cell therapies may well be the future of medicine, but untested stem cell therapies have the potential to give rise to the stuff of nightmares. Case in point: the unnamed cosmetic surgery patient in this piece by SciAm's Ferris Jabr, who, after dropping 20 grand on an untested, non-FDA-approved … » 12/19/12 10:40am 12/19/12 10:40am

Researchers remove extra chromosome from Down’s syndrome cells. Could…

Scientists from the University of Washington have successfully removed an extra copy of chromosome 21 in cell cultures belonging to a person with Down's syndrome. While the breakthrough is unlikely to result in an outright treatment for the condition, it could pave the way for gene therapies in which many of the… » 11/12/12 3:02pm 11/12/12 3:02pm

Could injecting yourself with blood of the young reverse the aging…

It would appear that the Slovak-Hungarian "Blood Countess" Elizabeth Báthory may have been on to something: Researchers have shown that it is possible to reverse cognitive decline in old mice by injecting them with blood from the young. Elderly mice who were given transfusions of young blood were shown to exhibit… » 10/22/12 1:20pm 10/22/12 1:20pm

High school report card of John Gurdon, winner of 2012 Nobel Prize for …

On Monday, Cambridge biologist Sir John Gurdon was awarded the Nobel Prize in physiology or medicine for his revolutionary work in the field of stem cell research. Featured here is an excerpt from his high school report card in the subject of biology, circa 1949. (The original report is pictured below.) Gurdon claims… » 10/11/12 1:58pm 10/11/12 1:58pm

Breakthrough: Researchers can now create an animal entirely from stem…

Biotechnology is getting into some pretty interesting territory these days. The latest breakthrough comes from Kyoto University where research scientists have, for the first time, created a mouse by using eggs produced by stem cells alone. The achievement once again shows the remarkable possibilities presented by… » 10/11/12 1:45pm 10/11/12 1:45pm

Scientists discover stem cells responsible for big brains and higher…

Neuroscientists from The Scripps Institute have identified a specialized population of stem cells that have an impressive vocational calling: higher brain functioning. It's an important finding that holds promise for the treatments of serious cognitive disorders — including those that impact on conscious function. And … » 8/10/12 11:43am 8/10/12 11:43am

Stem cell finding will lead to a "paradigm shift" in cancer treatments

There's been a heated controversy in cancer research over the past several years about the alleged presence of cancer stem cells that fuel tumour growth. But now, new research conducted by three independent teams has confirmed the existence of these "master builder" cells — a discovery that will likely lead to… » 8/02/12 6:40am 8/02/12 6:40am