WINES AND CANCER PREVENTION

Red wine is a rich source of biologically active phytochemicals, chemicals found in plants. Particular compounds called polyphenols found in red wine, such as catechins and resveratrol, are thought to have anti oxidant or anti cancer properties.
What are polyphenols and how do they prevent cancer?
Polyphenols are antioxidant compounds found in the skin and seeds of grapes. When wine is made from these grapes, the alcohol produced by the fermentation process dissolves the polyphenols contained in the skin and seeds. Red wine contains more polyphenols than white wine because the making of white wine requires the removal of the skins after the grapes are crushed. The phenols in red wine include catechin, gallic acid, and epicatechin.
Polyphenols have been found to have antioxidant properties. Antioxidants are substances that protect cells from oxidative damage caused by molecules called free radicals. These chemicals can damage important parts of cells, including proteins, membranes, and DNA. Cellular damage caused by free radicals has been implicated in the development of cancer. Research on the antioxidants found in red wine has shown that they may help inhibit the development of certain cancers. What is resveratrol and how does it prevent cancer?
Resveratrol is a type of polyphenol called a phytoalexin, a class of compounds produced as part of a plant's defense system against disease. It is produced in the plant in response to an invading fungus, stress, injury, infection, or ultraviolet irradiation. Red wine contains high levels of resveratrol, as do grapes, raspberries, peanuts, and other plants.
Resveratrol has been shown to reduce tumor incidence in animals by affecting one or more stages of cancer development. It has been shown to inhibit growth of many types of cancer cells in culture. Evidence also exists that it can reduce inflammation. It also reduces activation of NF kappa B, a protein produced by the body's immune system when it is under attack. This protein affects cancer cell growth and metastasis. Resveratrol is also an antioxidant.click here

8 BENEIFTS OF DRINKING RED WINES

Wine is one of the oldest alcoholic beverages on the planet. Its history spans thousands of years and while heavy drinking of any alcoholic beverage rather brings lots of health-related troubles instead of benefits, current research suggests that a glass of red wine each day may be providing you with more than just a little relaxation.

• Reduced risk of death from nearly all causes: European researchers suggest that moderate daily intake of red wine (22-32 g of alcohol) has a protective effect on all-cause mortality. According to studies from France, UK, Finland and Denmark, moderate consumption of wine is more beneficial than that of beer or spirits.


• Smoking: Acute smoking significantly impairs vessels' natural ability to relax, or vasodilate. Red wine, with or without alcohol, decreases the harmful effect of smoking on the endothelium - layer of cells that provide a friction-reducing lining in lymph vessels, blood vessels, and the heart.


• Heart disease: One of the well-known and most studied benefits of red wine is its heart protective effect. Moderate consumption of red wine on a regular basis may be a preventative against coronary heart disease. Scientists believe the red wine reduces the risk of coronary heart disease by reducing production of low density lipoprotein (LDL) cholesterol and boosting high density lipoprotein (HDL) cholesterol.


• Blood clots: Red wine produces anticlotting, or antithrombotic, action. Light to moderate consumers of wine have lower levels of protein fibrinogen which promotes blood clot formation.


• Atherosclerosis: Red wine may prevent the initiation and progression of atherosclerosis (hardening or "furring" of the arteries). Atherosclerosis starts when blood vessels begin to lose their ability to relax. Both the alcohol and polyphenols in the red wine appear to favorably maintain healthy blood vessels by promoting the formation of nitric oxide (NO), the key chemical relaxing factor that plays an important role in the regulation of vascular tone.


• Hypertension: Excessive alcohol consumption is generally considered a risk factor for hypertension. However, there is some evidence of favorable effects of red wine on blood pressure. Two glasses of red wine (250 ml), taken together with the meal, lower post-meal blood pressure in hypertensive persons.


• Kidney stones: Red wine intake reduces the risk of kidney stone formation.


• Alzheimer's disease: Moderate wine drinking correlates with a lower risk for Alzheimer's disease. Researchers found that resveratrol, a red wine polyphenol, produces neuroprotective effects.