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Archive | May, 2008

Green Tea And Thermogenesis

The thermogenic effect of tea is generally attributed to its caffeine content. An article in Alternative Medicine Review reports that green tea extract stimulates brown adipose tissue thermogenesis to an extent which is much greater than can be attributed to its caffeine content alone. Since polyphenols and caffeine inhibit different cellular reactions involving norepinephrine, the […]

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Green Tea Anti-Inflammatory

Green tea polyphenols such as EGCG have potent anti-inflammatory properties. Prior research had shown that EGCG inhibits tumor necrosis factor through a mechanism that was thought to have implications for inflammation generally. Epidemiological studies link regular consumption of tea with decreased cancer risk and a reduction in mortality during the 12 month period following a […]

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Potent Suppressive Effect Of Green Tea Polyphenols On Tobacco Induced Mutagenicity

Research from India reported in Phytomedicine explored the anti-mutagenic activity of green tea. Using standard mutagenicity assays, a team of research demonstrated that green tea polyphenols could inhibit the mutagenicity of tobacco in a concentration-dependent manner. The polyphenols were also found to inhibit urinary mutagenicity in rats induced by tobacco extract. Thus “green tea has […]

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Green and Black Tea Against Prostate Cancer

Green and black tea have shown promise in the chemoprevention of prostate cancer. In this study, the relative prostate bioavailability of theaflavin was 70% higher than that of EGCG. “This is the first human study to show that tea polyphenols and theaflavins are bioavailable in the prostate where they may be active in the prevention […]

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Green Tea Protects Against Skin Cancer

A study reported in the Journal of Nutrition demonstrated the promise of green tea polyphenols as anticarcinogenic agents to prevent the development of solar ultraviolet radiation induced skin cancer. Oral administration of green tea polyphenols reduced UVB induced tumor incidence by 35%, tumor multiplicity by 63%, and tumor growth by 55%. “GTP’s prevent UVB induced […]

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Green Tea Catechin Protect Against Hypoxia

Intermittent hypoxia is a feature of sleep disordered breathing, and impairs spatial learning and oxidative stress. In research conducted at the University of Louisville, Kentucky, oral green tea polyphenols reduced the spatial learning deficits and oxidative stress caused by intermittent hypoxia. “The potential therapeutic role of green tea polyphenols in sleep disordered breathing deserves further […]

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Black And Green Tea Polyphenols For Blood Pressure

Research in stroke-prone spontaneously hypertensive rats demonstrated benefits from both black and green tea polyphenols. Oxidative stress is reportedly involved not only in cardiovascular disease but also in hypertension. Using continuous monitoring of blood pressure, both green tea polyphenols and black tea polyphenols significantly reduced both systolic and diastolic blood pressure compared with controls. “These […]

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Green Tea Polyphenol Administration Partly Ameliorates Chemotherapy-Induced Side Effects in the Small Intestine of Mice

The chemotherapy agent irinotecan is highly effective against several types of cancer, but its use is limited due to severe intestinal toxicity. Green tea polyphenols (1 g per liter) used for seven days before and three days after treatment reduced the toxicity. “Green tea polyphenols supplied orally protected against oxidation in our experimental model and […]

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Green Tea Catechin Polyphenols Attenuate Behavioral and Oxidative Responses to Intermittent Hypoxia

From: American Journal of Respiratory and Critical Care Medicine Date: May 15, 2008 Author: Cheng, Yu; Dayyat, Ehab; Goldbart, Aviv D; Gozal, David; Li, Richard C; Row, Barry W; Burckhardt, Isabel C More results for: green tea polyphenols Rationale: The intermittent hypoxia (IH) that characterizes sleep disordered breathing impairs spatial learning and increases NADPH oxidase […]

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Green Tea Polyphenol Administration Partly Ameliorates Chemotherapy-Induced Side Effects in the Small Intestine of Mice

From: The Journal of Nutrition Date: March 1, 2007 Author: Et al; Koitz, Nina; Schmuckenschlager, Claudia; Strasser, Eva-Maria; Wessner, Barbara Abstract The chemotherapeutic agent irinotecan (IT) is highly effective against several types of cancer, although its use is limited due to severe intestinal toxicity. The aim of this study was to evaluate inflammatory and oxidative […]

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