EFFECTS OF GREEN AND BLACK TEA ON HEPATIC XENOBIOTIC-METABOLIZING SYSTEMS IN THE MALE F344 RAT

被引：120

作者：

SOHN, OS ^{[1
]}

SURACE, A ^{[1
]}

FIALA, ES ^{[1
]}

RICHIE, JP ^{[1
]}

COLOSIMO, S ^{[1
]}

ZANG, E ^{[1
]}

WEISBURGER, JH ^{[1
]}

机构：

[1] AMER HLTH FDN,VALHALLA,NY 10595

来源：

XENOBIOTICA | 1994年 / 24卷 / 02期

关键词：

D O I：

10.3109/00498259409043226

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

1. The induction of phase I and II enzymes in the liver of the male F344 rat drinking 2% (w/v) solutions of green or black tea for 6 weeks was investigated. Also studied were glutathione (GSH) and cyst(e)ine in blood, liver and kidney, as well as serum cholesterol, HDL cholesterol, triglycerides, and total and free testosterone. 2. The total carbon monoxide-discernible liver P450, b(5) and NADPH-cytochrome c (P450) reductase activities were similar in all groups. 3. There were significant increases in liver of rat drinking green or black tea of P4501A1, 1A2 and 2B1 activities, but no change in P4502E1 and 3A4 activities. Of the phase II enzymes, UDP-glucoronyltransferase was increased, but glutathione S-transferase was not. 4. Serum GSH was higher in the group administered black tea, but GSH and cyst(e)ine in other groups was at control levels. Serum cholesterol was lower in rat given black compared with green tea. Triglycerides had a declining trend after green and black tea exposure compared with water controls. Free and total testosterone were not affected. 5. Thus, beverages widely used by man altered host biochemistry as regards specific phase I and II enzymes in liver of rat and specific serum parameters.

引用

页码：119 / 127

页数：9

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