Shindo Makoto, Kasai Toshikazu, Abe Asaki, Kondo Yasuhiro
Department of Animal Science, Faculty of Agriculture, Okayama University, Okayama 700-8530, Japan.
J Nutr Sci Vitaminol (Tokyo). 2007 Feb;53(1):90-3. doi: 10.3177/jnsv.53.90.
Anthocyanins have beneficial effects such as free radical scavenging activity. We investigated the effects of continuous administration of colors from purple corn (PCC), purple sweet potato (PSC) and red radish (RRC) to spontaneously hypertensive rats (SHR). These are rich in anthocyanins. Animals were fed with diets containing PCC, PSC or RRC (1 mass% of diets) for 15 wk. While the body weight and the daily food intake of administered rats were not different from those of the non-administered control rats through the experimental period, the blood pressure and the heart rate of SHR administered each color decreased as compared to the control group from the early stage of administration. These results suggest that plant-derived colors containing anthocyanins have anti-hypertensive effects on hypertensive animals.
花青素具有诸如自由基清除活性等有益作用。我们研究了向自发性高血压大鼠（SHR）连续给予紫玉米（PCC）、紫甘薯（PSC）和红萝卜（RRC）色素的效果。这些富含花青素。动物连续15周喂食含有PCC、PSC或RRC（占饮食的1质量%）的饲料。在整个实验期间，给药大鼠的体重和每日食物摄入量与未给药的对照大鼠没有差异，但与对照组相比，从给药早期开始，给予每种色素的SHR的血压和心率均下降。这些结果表明，含有花青素的植物源性色素对高血压动物具有抗高血压作用。
