renin

Sympathetic innervation of the juxtaglomerular apparatus in the kidney releases renin;

肾脏肾小球旁体的交感神经支配释放肾素；

The intracytoplasmic renin containing granules in Juxtaglomerular Cell Tumor are PAS+e, diastase-resistant.

球旁细胞瘤细胞的胞浆内肾素颗粒PAS染色阳性。

Renin, a proteolytic enzyme formed in the granules of the juxtaglomerular apparatus cells, catalyzes conversion of the protein angiotensinogen to angiotensin I, a decapeptide.

肾素是肾小球旁体细胞颗粒内形成的一种蛋白水解酶，催化蛋白血素原转换为血素Ⅰ，即十肽。

Conclusion: The changes of circadian variation of blood pressure are associated with the role of sympathetic nerve and intracardial renin angiotensin system.

结论血压昼夜变化受交感神经与肾素血素系统等双重作有关。