Green Tea May Improve Function in Alzheimer's Disease and Combats the Illness in a Number of Ways
The current mechanism of action of approved drugs for Alzheimer's disease is the inhibition of the enzyme acetylcholinesterase in
the brain. This increases the level of acetylcholine in the brain.
Acetylcholine is needed for learning, thinking, and memory. This
strategy is useful for aiding the patient on a day by day basis
improving thinking and memory but may not prevent worsening of the
disease. Drugs currently in development block the deposition of
beta-amyloid, the sticky plaque that reaches out and destroys
everything in its path in the Alzheimer's diseased brain. Therefore
the newer strategy is to attack the disease from different angles
to help thinking while decreasing disease progression. As it turns
out giving green tea inhibits acetylcholinesterase
activity and blocks the enzyme beta-secretase that frees beta-amyloid
allowing it to create the brain plaque. Green tea has the activity
of both classes of medication. The study appears in the October
8th, 2004 issue of Phytotherapy Research.
Green Tea Improves Cancer Survival - Ovarian Cancer
254 women with epithelial ovarian cancer were recruited into a
study in the years 1999 to 2000, and they were followed for 3
years. At the end of the study 77.9% of the women who drank
green tea survived versus 47.9% of the non-tea drinkers. The
greater the intake of green tea the greater was the chance of
survival. The study is published in the November 10th, 2004
issue of the International Journal of Cancer.
Green Tea Improves Cancer Survival - Breast Cancer
472 patients with stage I, II, or III breast cancer were enrolled
into a two part study. In part one of the study it was found that
the more green tea a woman consumed the less number of metastasis
she had to the axial lymph nodes in stage I or II breast cancer
among premenopausal women, and the more treatable the breast
cancer was in post menopausal women.
In the second phase of the study increasing levels of consumption
of green tea was correlated with a decreased risk of breast cancer
recurrence in stage I or II breast cancer after seven years (a 44%
decreased risk of recurrence). The study is published in the March
1998 issue of the Japanese Journal of Cancer Research.
Green Tea Protects the Digestive Tract
Green tea is an antioxidant, anti-inflammatory, anti-carcinogenic,
anti-atherosclerotic, and antibacterial. In the gastrointestinal
tract Green tea prevents the formation of carcinogens out of
pro-carcinogens. Green tea activates cellular antioxidants that
protect the digestive tract and it cancer cell proliferation in
the digestive tract. Green tea decreases the risk of stomach and
colon cancer. Green tea may prevent digestive tract disorders.
The study is published in the October 1st, 2004 issue of the
European Journal of Pharmacology.