The systemic renin-angiotensin system (RAS) is known to be very importance for the regulation of blood pressure, but the intrinsical pathogenesis is not known.

• 以往研究已证实盐及肾素-血管紧张素-醛固酮(RAS)系统在高血压发病中占重要地位，但确切机制尚不清楚。