Conclusion: Shh and its receptor are expressed during the late bell stage of mouse tooth germ.
结论：Shh及其受体Ptc在小鼠牙胚钟状晚期有表达。
RESULTS: P75NGFR was expressed at all stages of mouse tooth germ development with different degrees.
结果：P 75ngfr在小鼠牙胚发育各期均有不同程度的表达。
Result: BSP and OPN have different temporal and spatial distribution mode during mouse tooth germ development.
结果：BSP、OPN在牙胚发育中的时空分布模式存在差异。
Methods: Immunohistochemistry and image analysis technique were used to observe the expressions of ADAM28 at mouse tooth germ development stages.
方法：采用免疫组织化学方法和图像分析技术观察adam28在小鼠牙胚发育各期的表达分布及差异。
Methods: Immunohistochemistry and image analysis technique were used to observe the expressions of ADAM28 at mouse tooth germ development stages.
方法：采用免疫组织化学方法和图像分析技术观察adam28在小鼠牙胚发育各期的表达分布及差异。
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