Johns Hopkins researchers say there is growing evidence that stem cells gone awry in their efforts to repair tissue damage could help explain why long-term irritation, such as from alcohol or heartburn, can create a breeding ground for certain cancers.
Biological science is now caught under a political microscope -- one that will continue no matter who sits in the White House in future years.
Cells from skeletal muscle could be an important source of stem cells for repairing damaged muscle or nerve tissue, suggest authors of a research article.
For the first time researchers have shown that transplanted stem cells can preserve and improve vision in eyes damaged by retinal disease.
Results from an animal study conducted at Johns Hopkins show that stem cell therapy can be used effectively to treat heart attacks, or myocardial infarcts, in pigs. Stem cells taken from another pig's bone marrow, when injected into the animal's damaged heart, were able to restore the heart's function to its original condition.
In human and animal studies, scientists at Johns Hopkins have developed a fast and safe method for collecting heart stem cells from remarkably small amounts of biopsied heart tissue (15 mg or less), and growing the cells in the lab to get more.
A top National Institutes of Health researcher predicted that the metallic prosthetic devices currently being used to replace joints in the body destroyed by osteoarthritis and other degenerative diseases will one day be replaced by healthy bone and cartilage tissue.
A "pdf" version of "Cell Biology 2004," the press book for the ASCB Annual Meeting, Dec. 4-8, is now accessible to registered science journalists. Registration is free, carries no obligation to attend, and is thus one heck of a deal.
The first test in humans of a bioartificial kidney offers hope of the device's potential to save the lives of people with acute renal failure, researchers at the University of Michigan Health System report.
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