to determine if the brain enzyme which has renin-like activity in vitro can form angiotensin in vivo , angiotensin ii concentration in cerebrospinal fluid ( csf ) was measured before and at various intervals after injection of partially purified renin substrate ( angiotensinogen ) into the third cerebral ventricle of anesthetized dogs .
C0003018
angiotensin
C0003017
angiotensinogen