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It sounds scary, but the changes are only temporary: Researchers report that heart cells grown in space showed altered gene expression.

But just 10 days after being returned to Earth, the heart cells returned to normal.

Once stem cells grew into heart cells aboard the International Space Station, their exposure to microgravity changed the expression of thousands of genes.

There are significant racial disparities in treatment of U.S. patients with multiple myeloma, a new study shows.

Researchers reviewed nationwide data on 3,504 white, 858 black and 468 Hispanic patients treated from 2007 to 2013.

The average time between multiple myeloma diagnosis and start of treatment was 2.7 months for whites; 4.6 months for Hispanics; and 5.2 months for b...

Pregnant women should keep in mind that donating their umbilical cord blood could save lives, a clinical cell therapy expert says.

Cord blood is the blood collected from the umbilical cord and placenta after the birth of a healthy baby, said Fabio Triolo. He is director of the Cellular Therapy Core laboratories at University of Texas Health Science Center at Houston.

Cord bl...

Folks who get treatment from a stem cell clinic could be spending their money on what amounts to snake oil, a new study warns.

Doctors administering stem cells might have no expertise in the condition they're trying to treat, and the cells themselves might be derived from questionable or discredited sources -- if the treatment contains any stem cells at all.

"The stem cell treat...

Could wigs, weaves or transplants someday become a thing of the past? Scientists report they were able to grow hair with stem cells in animal studies.

So far the technique has only been tried on mice, and results may not be the same in humans. But researchers say they have been able to grow natural-looking hair through the skin using stem cells.

This could bring new hope t...

There's a good chance the doctor treating you at a stem cell clinic doesn't have any professional training related to your illness, researchers report.

Anesthesiologists, dermatologists, plastic surgeons, radiologists and family doctors are among a wide range of physicians overseeing treatments at U.S. stem cell clinics for complex neurological and orthopedic diseases, the study found...

Scientists have developed a way to grow live bone using a rib and a 3-D mold in animal studies, and they say their technique could offer a new way to treat severe head and facial injuries.

The technique was tested in sheep. First, the researchers made a rectangular defect in the animal's jaw. Then they printed out an implantable mold and spacer made of bone cement.

They atta...

Doctors say they have sent a second HIV patient into what might be permanent remission using a stem cell transplant.

The news comes a decade after the first case of a cure was reported.

Back in 2009, doctors published a report in the New England Journal of Medicine detailing the case of the "Berlin patient" -- an HIV-positive man who'd received a stem cell transplant ...

Scientists who used stem cells to grow functional kidneys in rats say their research could point the way to growing new kidneys for humans.

A shortage of donor kidneys means many people with kidney failure never get a transplant. In the United States alone, 95,000 people are waiting for a new kidney.

To address shortages of donor organs, scientists are trying to find ways to...

A stem cell transplant may help some people with multiple sclerosis (MS) when standard drugs fail, a new clinical trial finds.

The study focused on 110 patients with aggressive cases of MS: Their symptoms had flared up at least twice in the past year despite taking standard medication, and they'd already tried an average of three of those drugs.

Researchers randomly assigned...

After infections tied to unapproved stem cell treatments sent 12 people to hospital this past year, the U.S. Food and Drug Administration on Thursday issued a stern warning about the products.

"The letters we're issuing today to manufacturers, health care providers and clinics around the country are a reminder that there's a clear line between appropriate development of these products...

A new gene therapy shows early promise against sickle cell anemia, researchers say.

The therapy targets the genetic flaw that causes sickle cell. In a small group of patients, researchers said the therapy appears safe and effective enough to keep moving forward into larger trials.

"We've been talking about using gene therapy for sickle cell anemia for years. Now it's finally...

People with disabling back pain may one day receive replacement spinal discs grown from their own stem cells, researchers say.

Preliminary results in goats are encouraging, according to the University of Pennsylvania researchers who've been working toward this goal for about 15 years.

In their latest effort, the team implanted bioengineered spinal discs into goat spines a...

Crowdfunding pleas for dubious or potentially unsafe medical treatments are increasingly common, and raised nearly $7 million on social media in two years, researchers report.

An ill patient pleading for naturopathic cancer treatments or hyperbaric oxygen therapy can be hard to resist. Ditto a parent seeking antibiotics for their child for chronic Lyme disease.

None of these...

Scientists say they have restored some degree of vision in blind lab mice, by activating stem cells in their eyes.

The procedure is the first of its kind and the researchers hope it will lead to treatments for incurable eye diseases.

Stem cells are primitive cells that can develop into mature body tissue. Researchers have been studying stem cells as a potential treatment for...

If dogs with arthritis can gain benefit from stem cell injections, maybe people can, too.

That's the opinion of an Italian veterinarian who oversaw the stem cell procedures in 130 arthritic dogs.

"For at least six months, the results are very satisfactory and promising. The lack of any complications in the dog should be taken into account when considering this treatment in ...

These days, medical advances seem to be happening in the blink of an eye. Now, British scientists report they have created human corneas using 3D-printing technology.

The researchers said they hope this breakthrough will one day ensure an unlimited supply of corneas. Human corneas are now in short supply. Yet, there are 10 million people around the world who need them to prevent blind...

A new stem cell transplant might help preserve or even restore vision being lost to the dry form of age-related macular degeneration, a new pilot clinical trial has shown.

In the experimental therapy, a specially engineered sheet of stem cells is transplanted into the back wall of the eye to replace a layer of cells destroyed by age-related macular degeneration (AMD).

Vision...

Stem cell clinics are charging big money for knee arthritis "cures" and making extravagant claims about their therapies, a new study contends.

A same-day injection for one knee costs thousands of dollars at these centers, according to a consumer survey taken of clinics across the United States.

People are paying that kind of cash because two-thirds of stem cell clinics promi...

In a potential advance for medical research, scientists say they've created the first functioning human muscle from skin cells.

The breakthrough could lead to better genetic or cell-based therapies, as well as furthering investigations into the causes and treatment of muscular disorders, the Duke University team said.

"The prospect of studying rare diseases is especially exc...

Stem cell transplants could offer new hope for people with a severe form of scleroderma -- a debilitating and deadly condition that affects the immune system, a new study suggests.

"Scleroderma hardens the skin and connective tissues and, in its severe form, leads to fatal organ failure, most often the lungs," said the study's lead author, Dr. Keith Sullivan. He is a professor of medi...

Gene therapy may have the potential to eradicate HIV in people infected with the virus, new animal research suggests.

The science centers around the use of "chimeric antigen receptor" (CAR) genes. In laboratory work with monkeys, these engineered cells have destroyed HIV-infected cells for more than two years, scientists reported.

"Theoretically, the goal is to provide a li...

For a child with spastic cerebral palsy, simply grasping a toy may be impossible. But infusions of their own umbilical cord blood might make basic movements like this easier, researchers say.

Children with spastic cerebral palsy have stiff muscles that can make it hard to move. The condition is usually caused by brain damage before or at birth.

"We are encouraged by the res...