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In a genetic engineering breakthrough that could help everyone from bed-ridden patients to elite athletes, a team of American researchers—including 2007 Nobel Prize winner Mario R. Capecchi—have created a “switch” that allows mutations or light signals to be turned on in muscle stem cells to monitor muscle regeneration in a living mammal. For humans, this work could lead to a genetic switch, or drug, that allows people to grow new muscle cells to replace those that are damaged, worn out, or not working for other reasons (e.g., muscular dystrophy). In addition, this same discovery also gives researchers
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A new research has suggested that cardiac stem cells – even in elderly and sick patients – could generate new heart muscle and vessel tissue and be used to treat heart failure.
Scientists surgically removed tissue from the muscular wall of the heart’s chambers in 21 patients.
They then isolated and multiplied the cardiac stem cells (CSCs) found there.
Most of the patients had ischemic cardiomyopathy (enlarged and weakened muscle due to coronary artery disease). Eleven also had diabetes. The average age of patients was about 65.
“Regardless of the gender or age of the patient, or of diabetes, we were
Scientists have claimed they would serve the world’s first test tube hamburger this October.
A team, led by Prof Mark Post of Maastricht University in the Netherlands, says it has already grown artificial meat in the laboratory, and now aims to create a hamburger, identical to a real stuff, by generating strips of meat from stem cells.
The finished product is expected to cost nearly 220,000 pounds, The Daily Telegraph reported.
Prof Post said his team has successfully replicated the process with cow cells and calf serum, bringing the first artificial burger a step closer.
“In October we are going to provide a
Scientists have taken the first steps toward producing the “heart patch,” a design for a medical implement used to repair damage from heart disease, a new study suggests.
Last week, researchers from Duke University presented the results of a study which, using mouse embryonic stem cells, examined the way these cells develop into heart muscle, HealthDay News reports (…)
A study on mice directed by Alessandra Sacco of Stanford University has shown that once inserted into a diseased muscle, just one adult muscular stem cell can reproduce to form an entire ‘family’ of cells and restore lost muscular function. In a leg muscle with no muscular stem cells that has been irreversibly damaged, a single adult stem cell can take root and multiply, restoring muscular function.
The study was presented today in the Annual Meeting of the American Society of Cell Biology
(ASCB) in San Francisco. The muscular stem cells in this case are called