Effects of dietary <i>Angelica keiskei</i> on lipid metabolism in stroke‐prone spontaneously hypertensive rats

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<jats:title>Summary</jats:title><jats:p>1. The effect of dietary <jats:italic>Angelica keiskei</jats:italic> on lipid metabolism was examined in stroke‐prone spontaneously hypertensive rats (SHRSP).</jats:p><jats:p>2. Six‐week‐old male SHRSP were fed diets containing 0.2% <jats:italic>A. keiskei</jats:italic> extract (ethyl acetate extract from the yellow liquid of stems) for 6 weeks with free access to the diet and water.</jats:p><jats:p>3. Elevation of systolic blood pressure tended to be suppressed on and after 2 weeks; however, this effect was not statistically significant.</jats:p><jats:p>4. Serum levels of cholesterol and phospholipid in SHRSP were significantly elevated after treatment with <jats:italic>A. keiskei</jats:italic> extract and this effect was accompanied by significant increases in serum apolipoprotein (Apo) A‐I and ApoE concentrations. These changes in the serum were due to increases in high‐density lipoprotein (HDL) containing ApoA‐I and ApoE.</jats:p><jats:p>5. In the liver, significant decreases in relative weight and triglyceride content were observed in SHRSP after treatment with <jats:italic>A. keiskei</jats:italic> extract. An investigation of mRNA expression of enzymes involved in hepatic triglyceride metabolism indicated a decreased level of hepatic Acyl‐coenzyme A synthetase mRNA expression.</jats:p><jats:p>6. In conclusion, dietary <jats:italic>A. keiskei</jats:italic> produces elevation of serum HDL levels and a reduction of liver triglyceride levels in SHRSP.</jats:p>

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