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News tagged with stem cells

New type of pluripotent cell discovered in adult breast tissue: Human body carries personalized 'patch kit'

(Medical Xpress)—UC San Francisco researchers have found that certain rare cells extracted from adult breast tissue can be instructed to become different types of cells – a discovery that could have important ...

Medical research created Mar 05, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Scientists create personalized bone substitutes from skin cells

A team of New York Stem Cell Foundation (NYSCF) Research Institute scientists report today the generation of patient-specific bone substitutes from skin cells for repair of large bone defects. The study, led by Darja Marolt, ...

Medical research created May 06, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

After brain injury, new astrocytes play unexpected role in healing

The production of a certain kind of brain cell that had been considered an impediment to healing may actually be needed to staunch bleeding and promote repair after a stroke or head trauma, researchers at ...

Medical research created Apr 24, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Embryonic stem cell transplant restores memory, learning in mice

For the first time, human embryonic stem cells have been transformed into nerve cells that helped mice regain the ability to learn and remember. A study at the University of Wisconsin-Madison is the first ...

Medical research created Apr 21, 2013 | popularity 4.4 / 5 (8) | comments 6 | with audio podcast

Gene regenerates heart tissue, critical finding for heart failure prevention

Researchers at UT Southwestern Medical Center have identified a specific gene that regulates the heart's ability to regenerate after injuries.

Genetics created Apr 17, 2013 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Why some stress is good for you? Acute stress primes the brain to do better on memory tasks two weeks later

(Medical Xpress)—Overworked and stressed out? Look on the bright side. Some stress is good for you.

Neuroscience created Apr 16, 2013 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Spring cleaning in your brain: New stem cell research shows how important it is

Deep inside your brain, a legion of stem cells lies ready to turn into new brain and nerve cells whenever and wherever you need them most. While they wait, they keep themselves in a state of perpetual readiness ...

Neuroscience created Apr 10, 2013 | popularity 5 / 5 (7) | comments 0 | with audio podcast

Will cell therapy become a 'third pillar' of medicine?

Treating patients with cells may one day become as common as it is now to treat the sick with drugs made from engineered proteins, antibodies or smaller chemicals, according to UC San Francisco researchers. They outlined ...

Medical research created Apr 03, 2013 | popularity 5 / 5 (8) | comments 0 | with audio podcast

Stem cells entering heart can be tracked with nano-'hitchhikers'

The promise of repairing damaged hearts through regenerative medicine—infusing stem cells into the heart in the hope that these cells will replace worn out or damaged tissue—has yet to meet with clinical success. But ...

Medical research created Mar 20, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Transplanted brain cells in monkeys light up personalized therapy

For the first time, scientists have transplanted neural cells derived from a monkey's skin into its brain and watched the cells develop into several types of mature brain cells, according to the authors of ...

Medical research created Mar 14, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Origin of aggressive ovarian cancer discovered

Cornell University researchers have discovered a likely origin of epithelial ovarian cancer (ovarian carcinoma), the fifth leading cause of cancer death among women in the United States.

Cancer created Mar 06, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Researchers utilize genetically corrected stem cells to spark muscle regeneration

Researchers at the University of Minnesota's Lillehei Heart Institute have combined genetic repair with cellular reprogramming to generate stem cells capable of muscle regeneration in a mouse model for Duchenne Muscular Dystrophy ...

Medical research created Mar 05, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Chemical reaction keeps stroke-damaged brain from repairing itself

Nitric oxide, a gaseous molecule produced in the brain, can damage neurons. When the brain produces too much nitric oxide, it contributes to the severity and progression of stroke and neurodegenerative diseases ...

Medical research created Feb 04, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Epidermal growth factor aids stem cell regeneration after radiation damage

Epidermal growth factor has been found to speed the recovery of blood-making stem cells after exposure to radiation, according to Duke Medicine researchers. The finding could open new options for treating cancer patients ...

Medical research created Feb 03, 2013 | popularity 5 / 5 (2) | comments 1 | with audio podcast

Sirtuin protein discovery opens door to potential 'molecular fountain of youth'

A new study led by researchers at the University of California, Berkeley, represents a major advance in the understanding of the molecular mechanisms behind aging while providing new hope for the development of targeted treatments ...

Medical research created Jan 31, 2013 | popularity 4.9 / 5 (17) | comments 6 | with audio podcast

Stem cell

Stem cells are cells found in most, if not all, multi-cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiating into a diverse range of specialized cell types. Research in the stem cell field grew out of findings by Canadian scientists Ernest A. McCulloch and James E. Till in the 1960s. The two broad types of mammalian stem cells are: embryonic stem cells that are isolated from the inner cell mass of blastocysts, and adult stem cells that are found in adult tissues. In a developing embryo, stem cells can differentiate into all of the specialized embryonic tissues. In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing specialized cells, but also maintain the normal turnover of regenerative organs, such as blood, skin or intestinal tissues.

Stem cells can now be grown and transformed into specialized cells with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture. Highly plastic adult stem cells from a variety of sources, including umbilical cord blood and bone marrow, are routinely used in medical therapies. Embryonic cell lines and autologous embryonic stem cells generated through therapeutic cloning have also been proposed as promising candidates for future therapies.

For more information about Stem cell, read the full article at Wikipedia.
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