英语语法分析

Objective: the main idea of this study was to explore the method of the normal ameloblast culture in vitro.

目的：探索成釉细胞离体培养方法，建立成釉细胞体外模型。

These results indicate that MAPK signaling functions, at least in part, as the inducer of ameloblast differentiation.

这些结果说明MAPK信号至少部分的诱导了成釉细胞的分化。

The expression of odontoblast significantly decreased in the late bell stage, while ameloblast showed positive expression.

钟状晚期表现于成牙本质细胞的表达明显下调，而成釉细胞呈阳性表达。