Prophylactic Trials for Stroke in Stroke-prone SHR

(3) Amino Acid Analyses of Various Diets and Their Prophylactic Effect

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This study confirmed again that high protein diet feeding decreased the incidence of stroke, and high fish protein diet did attenuate severe hypertension but high soybean protein diet did not affect the hypertension. Dietary amino acid analyses indicated that increases in total amino acids, essential amino acids and nonpolar amino acids but not acid or basic amino acids were significanty related to the reduction of stroke incidence. Among essential amino acids, lysine, threonine, isoleucine, and leucine contents were inversely related to stroke incidence, and methionine content was significantly related to the dietary antihypertensive effect of 626 SPONTANEOUSLY HYPERTENSIVE RAT Jap. Heart J. July, 1978high protein diets. The prophylactic effect of high protein diets may be ascribed to some amino acid constituent.