Absorption of tea catechins into rat portal vein.

  title={Absorption of tea catechins into rat portal vein.},
  author={Kazuo Okushio and Naoki Matsumoto and Toshiyuki Kohri and Masayuki Suzuki and Fumio Nanjo and Yukihiko Hara},
  journal={Biological & pharmaceutical bulletin},
  volume={19 2},
Following the oral administration of tea catechins, (-)-epicatechin, (-)-epigallocatechin, (-)-epicatechin gallate and (-)-epigallocatechin gallate, respectively, to rats, the presence of these catechins in the portal blood was examined. It was confirmed by HPLC and mass spectrometry analysis that each of the administered catechins was present in the blood. These results clearly indicate that four predominant catechins in fresh tea leaves are absorbed, at least in part, into the rat portal vein… CONTINUE READING