Results We showed that ANP and NPR-A were both expressed in the rat cochlea from postembryonic stage to early postnatal period.

• 结果在大鼠耳蜗组织中可以检测到ANP及NPR-A基因的表达,并发现随着大鼠发育成熟其耳蜗组织中ANP表达出现明显降低甚至消失,而NPR-A的表达无明显变化。