Scientists in Shanghai have successfully engineered the world's first laboratory-grown sinoatrial node, the heart's natural pacemaker, using human pluripotent stem cells. This biological pacemaker organoid is capable of autonomous beating and represents a significant breakthrough for cardiac disease research and drug screening. The development offers a potential new method for controlling abnormal heart rhythms. AI
RANK_REASON The cluster describes a scientific research breakthrough involving the engineering of a biological pacemaker from stem cells. [lever_c_demoted from research: ic=1 ai=0.1]
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