最近最新的日本中文MV_麻豆出品视频在线_超pen个人视频97_国产精品第一国产精品_国产香蕉片_免费看麻豆文化传媒_奶大灬舒服灬太大了一进一出_人妻激情偷乱一区二区三区

Product Description

Rat Renin Substrate Plasma, Female, Sodium EDTA

In the renin-angiotensin system (RAS), renin activates angiotensinogen to yield angiotensin I, which is further converted into angiotensin II by angiotensin-converting enzyme. Removal of the kidney generates renin/prorenin deficient plasma with high levels of angiotensinogen. This nephrectomized rat plasma can be used as a source of angiotensinogen or as a substrate for renin generation of Ang I. Plasma is collected from female rats at least 48 hours post nephrectomy. The substrate activity is determined by incubation with renin followed by Ang I radio-immune assay (RIA).