所有上述时刻，让感觉强烈起来的是一种叫“生长激素释放肽”的物质。

At all these moments, what's fueling the feeling is a substance called ghrelin.

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目的以体外培养表皮干细胞（ESC）为实验平台，观察感觉神经肽P物质（SP）在ESC分化中的作用。

Objective To investigate the effect of sensory neuropeptide substance P(SP) on the differentiation of cultured epidermal stem cells (ESC) in vitro, with in vitro cultured ESC as the platform.

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口腔颌面部感觉神经丰富，在伤口愈合中感觉神经释放的神经肽对伤口愈合的质量和速度有重要影响。

In oral cavity and maxillofacial region there are rich sensory nerves. The neuropeptide (sp) secreted from sensory nervous terminals affects the quality and the speed of wound healing.

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