A healthy human heart normally has a small group of special cells called pacemaker cells.

健康的人类心脏一般都有一小组称作起搏细胞的特殊细胞。

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CONCLUSION: GST exerted a negative chronotropic action and induced a delayed repolarization of pacemaker cells in SA nodes of rabbits.

结论：GST对家兔窦房结具有负性变时作用，并可延长复极化时程。

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Conclusion the pacemaker cells of the contractile activity of gastric smooth muscle cells are ICC, Motilin regulates the gastric smooth muscle contraction initiated by ICC.

结论ICC是胃平滑肌运动的起搏细胞。胃动素通过ICC对胃肌收缩进行调节。

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By treating the cells as heart cells would be treated and using a pacemaker to help them learn how to pump, they grew into a heart that could pump -- essentially rebuilding the organ's interior.

CNN: New hope may lie in lab-created heart