... 1997, 49: 246-252 Received September 4, 1996 Accepted October 22, 1996 ... Pharmacology Antihypertensive effects of la-c and 2a-c in spontaneously hypertensive rats (SHR ... artificial respiration by mean of a BioScience pump (Sheerness, Kent, UK 56 cycles min-'; volume 2 mL ...