Literature DB >> 8957060

Inhibitory effects of tea catechins, black tea extract and oolong tea extract on hepatocarcinogenesis in rat.

N Matsumoto1, T Kohri, K Okushio, Y Hara.   

Abstract

Inhibitory effects of individual tea catechins ((--)-epicatechin, (--)-epigallocatechin, (--)-epicatechin gallate, (--)-epigallocatechin gallate), black tea extract and oolong tea extract on hepatocarcinogenesis were investigated. Male F344 rats received a single dose of diethylnitrosamine (200 mg/kg, i.p.), and thereafter phenobarbital (0.05%) was administered in the drinking water for a period of 6 weeks. Tea catechins, black tea extract or oolong tea extract were given during the entire experimental period, during only the initiation period or during only the promotion period. All four tea catechins, black tea extract and oolong tea extract (0.05 or 0.1%) significantly decreased the number and area of preneoplastic glutathione S-transferase placental form-positive foci in the liver. These results suggest that tea catechins, black tea extract and oolong tea extract have a chemopreventive action against hepatocarcinogenesis.

Entities:  

Mesh：

Substances：

Year:  1996        PMID： 8957060      PMCID： PMC5920992          DOI： 10.1111/j.1349-7006.1996.tb03106.x

Source DB:  PubMed          Journal:  Jpn J Cancer Res        ISSN： 0910-5050


  24 in total

1.  Effects of dietary tea catechins on alpha-tocopherol levels, lipid peroxidation, and erythrocyte deformability in rats fed on high palm oil and perilla oil diets.

Authors:  F Nanjo; M Honda; K Okushio; N Matsumoto; F Ishigaki; T Ishigami; Y Hara
Journal:  Biol Pharm Bull       Date:  1993-11       Impact factor: 2.233

2.  The placental form of glutathione S-transferase as a new marker protein for preneoplasia in rat chemical hepatocarcinogenesis.

Authors:  K Sato; A Kitahara; K Satoh; T Ishikawa; M Tatematsu; N Ito
Journal:  Gan       Date:  1984-03

3.  Effects of green tea catechins in a rat multi-organ carcinogenesis model.

Authors:  M Hirose; T Hoshiya; K Akagi; S Takahashi; Y Hara; N Ito
Journal:  Carcinogenesis       Date:  1993-08       Impact factor: 4.944

4.  Inhibitory effects of black tea, green tea, decaffeinated black tea, and decaffeinated green tea on ultraviolet B light-induced skin carcinogenesis in 7,12-dimethylbenz[a]anthracene-initiated SKH-1 mice.

Authors:  Z Y Wang; M T Huang; Y R Lou; J G Xie; K R Reuhl; H L Newmark; C T Ho; C S Yang; A H Conney
Journal:  Cancer Res       Date:  1994-07-01       Impact factor: 12.701

5.  Inhibitory effects of 1-O-hexyl-2,3,5-trimethylhydroquinone (HTHQ), green tea catechins and other antioxidants on 2-amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1)-induced rat hepatocarcinogenesis and dose-dependent inhibition by HTHQ of lesion induction by Glu-P-1 or 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx).

Authors:  M Hirose; R Hasegawa; J Kimura; K Akagi; Y Yoshida; H Tanaka; T Miki; T Satoh; K Wakabayashi; N Ito
Journal:  Carcinogenesis       Date:  1995-12       Impact factor: 4.944

6.  Absorption of (-)-epigallocatechin gallate into rat portal vein.

Authors:  K Okushio; N Matsumoto; M Suzuki; F Nanjo; Y Hara
Journal:  Biol Pharm Bull       Date:  1995-01       Impact factor: 2.233

7.  Inhibition of N-methyl-N'-nitro-N-nitrosoguanidine-induced carcinogenesis by (-)-epigallocatechin gallate in the rat glandular stomach.

Authors:  T Yamane; T Takahashi; K Kuwata; K Oya; M Inagake; Y Kitao; M Suganuma; H Fujiki
Journal:  Cancer Res       Date:  1995-05-15       Impact factor: 12.701

8.  Chemopreventive effects of beta-carotene, alpha-tocopherol and five naturally occurring antioxidants on initiation of hepatocarcinogenesis by 2-amino-3-methylimidazo[4,5-f]quinoline in the rat.

Authors:  H Tsuda; N Uehara; Y Iwahori; M Asamoto; M Iigo; M Nagao; K Matsumoto; M Ito; I Hirono
Journal:  Jpn J Cancer Res       Date:  1994-12

9.  Inhibition of 1,2-dimethylhydrazine-induced oxidative DNA damage by green tea extract in rat.

Authors:  M Inagake; T Yamane; Y Kitao; K Oya; H Matsumoto; N Kikuoka; H Nakatani; T Takahashi; H Nishimura; A Iwashima
Journal:  Jpn J Cancer Res       Date:  1995-11

10.  Tea consumption and lung cancer risk: a case-control study in Okinawa, Japan.

Authors:  Y Ohno; K Wakai; K Genka; K Ohmine; T Kawamura; A Tamakoshi; R Aoki; M Senda; Y Hayashi; K Nagao
Journal:  Jpn J Cancer Res       Date:  1995-11
View more
  7 in total

1.  Effect of antioxidant phytochemicals on the hepatic tumor promoting activity of 3,3',4,4'-tetrachlorobiphenyl (PCB-77).

Authors:  Job C Tharappel; Hans-Joachim Lehmler; Cidambi Srinivasan; Larry W Robertson; Brett T Spear; Howard P Glauert
Journal:  Food Chem Toxicol       Date:  2008-08-30       Impact factor: 6.023

2.  Chemoprevention against hepatocellular carcinoma.

Authors:  Jun-Ichi Okano; Yuki Fujise; Ryo Abe; Ryu Imamoto; Yoshikazu Murawaki
Journal:  Clin J Gastroenterol       Date:  2011-06-04

3.  In vitro antioxidant activity of phenolic-enriched extracts from Zhangping Narcissus tea cake and their inhibition on growth and metastatic capacity of 4T1 murine breast cancer cells.

Authors:  Le Ying; De-Dong Kong; Yuan-Yuan Gao; Feng Yan; Yue-Fei Wang; Ping Xu
Journal:  J Zhejiang Univ Sci B       Date:  2018 Mar.       Impact factor: 3.066

4.  Inhibitory effect of tea polyphenols on hepatic preneoplastic foci in Wistar rats.

Authors:  Smita Srivastava; Madhulika Singh; Preeti Roy; Sahdeo Prasad; Jasmine George; Yogeshwer Shukla
Journal:  Invest New Drugs       Date:  2008-12-05       Impact factor: 3.850

Review 5.  Tea polyphenols for health promotion.

Authors:  Naghma Khan; Hasan Mukhtar
Journal:  Life Sci       Date:  2007-06-28       Impact factor: 5.037

6.  Inhibition by green tea extract of diethylnitrosamine-initiated but not choline-deficient, L-amino acid-defined diet-associated development of putative preneoplastic, glutathione S-transferase placental form-positive lesions in rat liver.

Authors:  K Tamura; D Nakae; K Horiguchi; H Akai; Y Kobayashi; H Satoh; T Tsujiuchi; A Denda; Y Konishi
Journal:  Jpn J Cancer Res       Date:  1997-04

7.  Suppression by flavonoids of cyclooxygenase-2 promoter-dependent transcriptional activity in colon cancer cells: structure-activity relationship.

Authors:  M Mutoh; M Takahashi; K Fukuda; H Komatsu; T Enya; Y Matsushima-Hibiya; H Mutoh; T Sugimura; K Wakabayashi
Journal:  Jpn J Cancer Res       Date:  2000-07
  7 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.