Calcium Channel-blocking Activity of Chinese Balloon Flower (Platycodon grandiflorum) for Producing Blood Pressure-lowering Functional Foods

  • Kang, Yoon-Seok (Department of Bioscience and Biotechnology, Konkuk University) ;
  • Hong, Kwon-Pyo (Department of Bioscience and Biotechnology, Konkuk University) ;
  • Jung, Dong-Chae (Department of Bioscience and Biotechnology, Konkuk University) ;
  • Hong, Sung-Won (Department of Bioscience and Biotechnology, Konkuk University) ;
  • Lee, Jun-Ho (Department of Physiology, College of Veterinary Medicine and Bio/Molecular Informatics Center, Konkuk University) ;
  • Nah, Seung-Yeal (Department of Physiology, College of Veterinary Medicine and Bio/Molecular Informatics Center, Konkuk University) ;
  • Lim, Yoong-Ho (Department of Bioscience and Biotechnology, Konkuk University) ;
  • Bae, Dong-Ho (Department of Bioscience and Biotechnology, Konkuk University)
  • 발행 : 2008.02.29

초록

This study was conducted to evaluate the hypotensive properties of the extract of Chinese balloon flower (Platycodon grandiflorum)'s root. In the studies for calcium channel-blocking using Xenopus oocytes, the ethanol-extract ($26.2{\pm}5.2%$) showed higher activity than water-extract. Twenty female rats were fed 25, 35, and 45 mg/kg BW/day of the ethanol-extract for 14 days to observe the changes in blood pressures and heart pulses. Ethanol-extract decreased the systolic, diastolic, and mean blood pressures of the rats. Especially, the rats fed with 45 mg/kg BW/day of the ethanol-extract showed significant decreases in the blood pressures. These results suggested that a decrease in blood pressures was due to the extension of a blood vessel with calcium channel-blocking by ethanol-extract of Chinese balloon flower. Forty %-ethanol showed the highest efficiency for ethanol-extraction of Chinese balloon flower.

키워드

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