title: Absorption of tea catechins into rat portal vein.
abstract: 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.
authors.affiliation: Food Research Laboratories, Mitsui Norin Co., Ltd., Fujieda-shi, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okushio
authors.forename: N
authors.initials: N
authors.lastname: Matsumoto
authors.forename: T
authors.initials: T
authors.lastname: Kohri
authors.forename: M
authors.initials: M
authors.lastname: Suzuki
authors.forename: F
authors.initials: F
authors.lastname: Nanjo
authors.forename: Y
authors.initials: Y
authors.lastname: Hara
mesh_terms: D000042:Absorption; D000818:Animals; D002392:Catechin / Q000493:pharmacokinetics*; D008297:Male; D011169:Portal Vein / Q000378:metabolism*; D051381:Rats; D017208:Rats, Wistar; D013662:Tea
chemical_list: D013662:Tea; D002392:Catechin