Engineered stem cell implants can help resynchronize cardiac motion

Washington, Sept. 4 : Researchers have discovered a method to resynchronize cardiac motion following a heart attack with the help of stem cells.

Scientists implanted engineered stem cells, also known as induced pluripotent stem (iPS) cells, into damaged regions of mouse hearts following a heart attack. This regenerative approach successfully targeted the origin of abnormal cardiac motion, preventing heart failure.

Andre Terzic, M.D., Ph.D., senior author of the study, said that the discovery introduces - for the first time - stem cell-based 'biological resynchronization' as a novel means to treat cardiac dyssynchrony.

Muscle damage following a heart attack may disrupt normal heart conduction, resulting in a condition known as cardiac dyssynchrony.

Stem cell-based repair is going to offer a new solution to patients who would otherwise be resistant to device-based resynchronization.

Satsuki Yamada, M.D., Ph.D., first author of the study, said that a high-resolution ultrasound revealed harmonized pumping where iPS cells were introduced to the previously damaged heart tissue.

The study provides evidence that a stem cell-based intervention may be effective in synchronizing failing hearts. Additional studies will follow to validate the value of stem cell-based regenerative solutions in addressing abnormal cardiac motion in heart failure, ultimately leading to improved patient care.

The findings have been published in the Journal of Physiology.

--ANI (Posted on 04-09-2013)

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