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A biodegradable tissue to repair hearts after a heart attacks or to cure congenital malformations. A tissue that acts like a porous, accordion-like medium onto which cardiac stem cells are ‘implanted’ has been created by scientists from the prestigious Massachusetts Institute of Technology in Boston (MIT). This “bioscaffolding” integrates perfectly with cardiac tissue and creates a biological “band-aid” that is slowly reabsorbed and repairs cardiac muscle.
Compared to similar previous attempts, explained George Engelmayr in “Nature Materials” magazine, the advantage of the “bioscaffolding” is that it faithfully mirrors cardiac tissue structurally and mechanically, and
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A University of Bristol team extracted stem cells from the veins, then used them to stimulate new blood vessel growth in mice, Circulation reports.
The researchers say their findings could bring treatments to repair damaged heart muscle one step closer.
However, a stem cell expert warned that they remained some years away.
Stem cells are attractive to medical researchers because they have the ability to produce many different types of human cell, opening up the possibility of repair or renewal for tissues ravaged by disease or injury (…)
Stem Cell Research Trial Results for Heart Disease Patients
Dr. Amit Patel of the University of Utah is reporting that 3 out of 3 heart disease patients have improved in the initial stages of his stem cell research trial in which the cardiomyopathy patients had their own Adult Stem Cells injected back into their heart in […]
A group of British doctors are preparing for human clinical trials that will take a person’s bone marrow stem cells, transform them into heart stem cells and inject them into the heart, where they can go to work repairing damage.
“Placing heart stem cells into the heart to repair has a very good chance of working; because the stem cells are the patient’s own there are no problems with rejection,” said Professor Sian Harding, of Imperial College London.
The British researchers plan to use a technique that was pioneered at the Mayo Clinic. They will remove 40 milliliters of bone marrow
Stem cell therapy can regenerate heart muscle in primates, according to a University of Washington study.
The scientists on this and related projects are seeking way to repair hearts weakened by myocardial infarctions.
This all-too-common type of heart attack blocks a major artery and deprives heart muscle of oxygen.
People who survive a severe episode often continue their lives in poor health because their hearts no longer work properly. The researchers hope eventually to restore such failing hearts to normal function.
Their approach uses heart cells created from human embryonic stem cells
The researchers tested the possibility of producing enough of these cardiac muscle