Drinking tea may stave off bile stones and cancer

Roman Bystrianyk · medicine forum Guru Joined: 02 May 2005 Posts: 454

"Drinking tea may stave off bile stones and cancer", Yahoo, July 7,
2006,
Link:
http://news.yahoo.com/s/nm/20060708/hl_nm/tea_dc;_ylt=Av8boRiWe9hd5FXE3AvHcVgQ.3QA;_ylu=X3oDMTA5aHJvMDdwBHNlYwN5bmNhdA--

Results of a study conducted in China indicate that drinking tea
reduces the risk of bile stones and cancer, especially among women.

Bile stones, which are often seen in women and have been linked to
obesity, occur in the ducts that transfer bile from the liver to the
small intestine. If the stones block the opening of the gallbladder,
they can cause discomfort and pain, typically located just below the
rib cage on the right side of the abdomen. At this stage, gallbladder
removal, or "cholecystectomy," is often required. Serious complications
from bile stones are uncommon.

By contrast, "biliary tract cancers...are rare but highly fatal," Dr.
Ann W. Hsing, of the National Cancer Institute, Bethesda, Maryland, and
colleagues write in the International Journal of Cancer.

"Apart from gallstones, (causative) factors for biliary tract cancer
are not clearly defined," they note. Several studies "have suggested
that consumption of tea, especially green tea, is protective against a
variety of cancers."

In the new study, the researchers examined the effects of tea
consumption on the risk of biliary tract cancers and biliary stones.
Included in the study were 627 patients with biliary tract cancer,
1,037 with biliary stones, and 959 comparison subjects.

The team obtained data on demographics, medical and dietary factors,
and tea consumption. Tea drinkers were defined as those who drank at
least one cup of tea per day for at least 6 months. Of the 959 control
subjects, 394 (41 percent) were ever tea drinkers.

In women, drinking at least one cup of tea per day for at least 6
months seemed to cut the risks of bile stones by 27 percent,
gallbladder cancer by 44 percent, and bile duct cancer by 35 percent.
In men, tea drinking had a similar effect, but not of the magnitude
seen in women.

Certain chemicals in tea may prevent cells from growing abnormally and
may have antiinflammatory effects that reduce the risk of these bile
tract diseases, Hsing's team explains. Further studies are needed to
see if these findings can be duplicated.

SOURCE: International Journal of Cancer, June 2006.

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