Green tea extract may slow leukaemia, researchers have suggested

An extract taken from green tea reduces cancer cells in the blood of patients with a form of leukaemia and may slow progression of the disease, a conference will hear.

'Researchers at the prestigious Mayo Clinic in America have found that patients in the early stages of the most common form of leukaemia may respond well to taken supplements of a green tea extract.

The chemical, epigallocatechin galeate (EGCG), was found more than two thirds of 42 patients in the trial showed a significant reduction in the number of leukaemia cells in their blood or other signs the cancer was not spreading.'

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How To Drink Green Tea for Beginners

by Chef Oscar Umahro Cadogan

'What Japanese and Chinese people have known for centuries - that green tea is not only a delicacy, when brewed correctly, but also an easy way to augment one's health and well-being - is now being verified and accepted by the medical profession in the Western world. Green tea contains extremely powerful antioxidants, a range of catechins in particular, which protect against health problems such as cancer and cardiovascular disease. It also contains varying amounts of caffeine bound to tannins; the caffeine content depends on where the tea is grown. For some types of tea, the caffeine content is comparable to that of coffee.


'However, even the green teas with the highest caffeine content are much gentler on the body and the adrenals than coffee, the reason being that the caffeine is bound to the tannins in the tea, which ensures a somewhat slower rush of caffeine into the blood.

'The result is a much gentler and more sustained energy boost, compared to coffee and black tea. Also, you won't experience the energy downs you get from coffee, when the rush of caffeine suddenly stops as abruptly as it started. So for those having trouble getting through the day without coffee, which stresses the body's biochemistry, green tea is not merely an alternative, but an improvement. It can do what you want from coffee, but it has none of the negative effects.'


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New Evidence That Green Tea Helps Fight Eye Diseases

'Scientists have confirmed that the healthful substances found in green tea -- renowned for their powerful antioxidant and disease-fighting properties — do penetrate into tissues of the eye. Their new report, the first documenting how the lens, retina, and other eye tissues absorb these substances, raises the possibility that green tea may protect against glaucoma and other common eye diseases. It appears in ACS's bi-weekly Journal of Agricultural and Food Chemistry.

Chi Pui Pang and colleagues point out that so-called green tea "catechins" have been among a number of antioxidants thought capable of protecting the eye. Those include vitamin C, vitamin E, lutein, and zeaxanthin. Until now, however, nobody knew if the catechins in green tea actually passed from the stomach and gastrointestinal tract into the tissues of the eye.

Pang and his colleagues resolved that uncertainty in experiments with laboratory rats that drank green tea. Analysis of eye tissues showed beyond a doubt that eye structures absorbed significant amounts of individual catechins. The retina, for example, absorbed the highest levels of gallocatechin, while the aqueous humor tended to absorb epigallocatechin. The effects of green tea catechins in reducing harmful oxidative stress in the eye lasted for up to 20 hours. "Our results indicate that green tea consumption could benefit the eye against oxidative stress," the report concludes.'

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