An Experimental Study of Delaying Effect of Undaria pinnatifida on the Blood Pressure of Spontaneously Hypertensive Rats

Abstract

The reducing effect of Undaria pinnatifida on blood pressure of spontaneously hypertensive rats (SHR) was studied. The following results were obtained by the oral administration of the powder of Undaria pinnatifida.
1) Increased plasma thyroxine concentration and reduced plasma catecholamine concentration.
2) Increased plasma potassium and calcium concentration.
3) In the growing rats, the body weight gain was suppressed and the curve of body weight gain differed from the control group.
4) The administration from the viviparity stage resulted in the delayed manifastation of hypertension in SHR, but did not suppress the development of hypertension per se.