Green tea has been shown to be a potent chemopreventive agent against lung tumorigenesis in animal models. Previously, we found that treatment of A/J mice with either green tea (0.6% in water) or a defined green tea catechin extract (polyphenon E; 2.0 g/kg in diet) inhibited lung tumor tumorigenesis. Here, we described expression profiling of lung tissues derived from these studies to determine...

BACKGROUND Recently, the anticarcinogenic effects of green tea have been studied in sites other than the urinary tract. The present study examined the inhibition by green tea of vesical tumors induced in rats by N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN). METHODS In the first series of experiments, 0.05% BBN was added to the drinking water of rats and remained present for 5 weeks. In one ex...

BACKGROUND AND AIM Green tea and lotus hold several synergistic antioxidant compounds. This investigation aimed to assess the efficacy of green tea and green tea plus lotus vs. placebo multiple emulsions in healthy adults for controlling casual sebum secretions. PARTICIPANTS AND METHODS After signing informed consents, twenty-two participants were registered in a single-blinded, placebo-contr...

Epidemiological and animal studies have demonstrated that ingestion of green tea enhances healthy life. However, caffeine in green tea can interfere with sleep. In this report, we examined the effect of green tea with lowered caffeine, low-caffeine green tea, on stress and sleep of the elderly. The participants (n = 10, mean age 89.3 ± 4.2 years) drank five cups/day of standard green tea for 1 ...

In a previous study (Z Y. Wang et ci., Cancer Res., 52: !!62—1!70, !992),wefoundthatadministrationof a waterextractof greentealeaves as the sole source of drinking fluid inhibited ultraviolet B light (UVB) Induced carcinogenesis in SKH-! mice previously Initiated with 7,12dimethylbenz[alanthncene (DMBA). In the present study, we compared the effects of black tea, green tea, decaffeinated blac...

Coronary artery disease (CAD) is recognized as an inflammatory disease. In the present study, we investigated the effect of green tea consumption on plasma inflammatory markers and the association between green tea consumption and CAD. In 22 healthy volunteers, green tea consumption (7 cups/day) significantly decreased serum malondialdehyde-modified low-density lipoprotein (MDA-LDL) concentrati...

We tested the hypothesis that green tea prevents diabetes-related tissue dysfunctions attributable to oxidation. Diabetic rats were treated daily with tap water, vitamins C and E, or fresh Japanese green tea extract. After 12 months, body weights were decreased, whereas glycated lysine in aorta, tendon, and plasma were increased by diabetes (P < 0.001) but unaffected by treatment. Erythrocyte g...

today diabetes is one of the most common diseases in the world that affects half of the world population. today, the use of medicinal herbs especially green tea and cinnamon has been taken into consideration for relieving the symptoms of diabetes, but there were some different ideas about their effectiveness. so, this study was conducted to evaluate the effect of cinnamon and green tea extract,...

statement of the problem periodontal disease is a periodontal tissue inflammation caused by gram-negative and other bacteria. the release of various cytokins and mediators, including nitric oxide, in the inflammation area usually has determental effects on the periodontium, potentiating the inflammatory process. in order to prevent this side effect, investigatiors have used anti-oxidants such a...