Green tea may help improve bone health

Washington, Sept 17 (ANI): Green tea may help improve bone health, researchers in Hong Kong have reported.

The boffins found that the tea contains a group of chemicals that can stimulate bone formation and help slow its breakdown.

The study has been published in ACS’ Journal of Agricultural and Food Chemistry, a bi-weekly publication.

In the study, Ping Chung Leung and colleagues noted that many scientific studies have linked tea to beneficial effects in preventing cancer, heart disease, and other conditions.

To reach the conclusion, scientists exposed a group of cultured bone-forming cells (osteoblasts) to three major green tea components – epigallocatechin (EGC), gallocatechin (GC), and gallocatechin gallate (GCG) – for several days. They found that one in particular, EGC, boosted the activity of a key enzyme that promotes bone growth by up to 79 percent. EGC also significantly boosted levels of bone mineralization in the cells, which strengthens bones.

The scientists also showed that high concentrations of ECG blocked the activity of a type of cell (osteoclast) that breaks down or weakens bones. The green tea components did not cause any toxic effects to the bone cells, they noted. (ANI)

Green tea extract may help treat leukemia

Washington, May 27 (ANI): An active ingredient of green tea has been found effective in treating leukaemia patients, say researchers.

The study led by Mayo Clinic researchers has shown that patients could fairly tolerate high doses of the chemical epigallocatechin gallate (EGCG), derived from the green tea.

“We found not only that patients tolerated the green tea extract at very high doses (in capsule form), but many of them saw regression to some degree of their chronic lymphocytic leukemia,” said Dr Tait Shanafelt, Mayo Clinic hematologist and lead author of the study.

“The majority of individuals who entered the study with enlarged lymph nodes saw a 50 percent or greater decline in their lymph node size,” Shanafelt added.

The researchers hope that EGCG can stabilize CLL for early stage patients or perhaps improve the effectiveness of treatment when combined with other therapies.

After the success of the first trial, researchers have moved to the second phase of clinical testing. involving roughly the same number of patients. All will receive the highest dose administered from the previous trial.

The findings appear online in the Journal of Clinical Oncology. (ANI)

White tea may combat obesity epidemic

Washington, May 1 (ANI): A daily cup of white tea may help beat the bulge, say researchers.

Possible anti-obesity effects of white tea have been demonstrated in a series of experiments on human fat cells (adipocytes).
esearchers writing in BioMed Central’s open access journal Nutrition and Metabolism have shown that an extract of the herbal brew effectively inhibits the generation of new adipocytes and stimulates fat mobilization from mature fat cells.

Marc Winnefeld led a team of researchers from Beiersdorf AG, Germany, who studied the biological effects of an extract of white tea – the least processed version of the tea plant Camellia sinensis.

He said, “In the industrialized countries, the rising incidence of obesity-associated disorders including cardiovascular diseases and diabetes constitutes a growing problem. We’ve shown that white tea may be an ideal natural source of slimming substances”.

After treating lab-cultured human pre-adipocytes with the tea extract, the authors found that fat incorporation during the genesis of new adipocytes was reduced.

According to Winnefeld, “The extract solution induced a decrease in the expression of genes associated with the growth of new fat cells, while also prompting existing adipocytes to break down the fat they contain”.

White tea is made from the buds and first leaves of the plant used to make green tea and the black tea most commonly drunk in Western countries. It is less processed than the other teas and contains more of the ingredients thought to be active on human cells, such as methylxanthines (like caffeine) and epigallocatechin-3-gallate (EGCG) – which the authors believe to be responsible for many of the anti-adipogenic effects demonstrated in their study. (ANI)

Drinking three or more cups of tea a day ‘reduces stroke risk’

New York, February 22 (ANI): Here’s some good news for tea-lovers: having three or more cups of the drink everyday can cut the risk of stroke, says a new study.

According to Lenore Arab, professor of medicine at the David Geffen School of Medicine, drinking the beverage can reduce the threat by as much as 21 per cent.

UCLA boffins observed that the result was obtained in tea made from the plant Camellia sinensis and not from herbs.

It was contemplated that anti-oxidant epigallocatechin gallate or the amino acid Theanine in teas may be what leads to the reduced risks.

“By drinking three cups of tea a day, the risk of a stroke was reduced 21 percent,” the New York Daily News quoted Arab as saying.

“That’s why these findings are so exciting. If we can find a way to prevent the stroke, or prevent the damage, that is simple and not toxic, that would be a great advance,” he added. (ANI)