Thursday, March 29, 2007

Prostate Cancer Risk Factors

A risk factor is anything that may increase a person's chance of developing a disease. It may be an activity, such as smoking, diet, family history, or many other things. Different diseases, including cancers, have different risk factors. In general, all men are at risk for prostate cancer. However, there are specific risk factors that increase the likelihood that certain men will develop the disease, including the following:

Age is a risk factor for prostate cancer, especially men age 50 and older. More than 80 percent of all prostate cancers are diagnosed in men over the age of 65. Race: Prostate cancer is nearly twice as common among African-American men than it is among Caucasian-American men. Japanese and Chinese men native to their country have the lowest rates of prostate cancer.

Diet: Data suggests that the diet consumed in Western industrialized countries may be one of the most important contributory factors for developing prostate cancer. The following information regarding diet and its effect on the risk for prostate cancer include men who eat a high-fat diet may have a greater chance of developing prostate cancer. Dietary fiber intake may decrease the progression of prostate cancer. Soy protein lowers fat intake, and the isoflavones in soy have been found to inhibit the growth of prostate cancer. Vitamin E and selenium Vitamin E, an antioxidant, combined with selenium, has been shown to inhibit tumor growth in laboratory animals. Carotenoids Carotenoids containing lycopenes have been shown to inhibit the growth of human prostate cancer cells in tissue cultures. The primary source of lycopenes is processed tomatoes in tomato juice and tomato paste. Obesity Obesity not only contributes to diabetes and high cholesterol, but has also been associated with some common cancers including prostate cancer.

Vasectomy, BPH (benign prostatic hyperplasia), or STD (sexually transmitted disease) Researchers have looked at whether men who have had a vasectomy, BPH, or those who have had exposure to STD's are at increased risk for prostate cancer. Some studies suggest a link, while others don't. Family history of prostate cancer. A father or brother with prostate cancer doubles a man's risk of developing prostate cancer. The risk is even higher for men with several affected relatives. Geneticists divide families into three groups, depending upon the number of men with prostate cancer and their ages of onset, including the following: Sporadic - a family with prostate cancer present in one man, at a typical age of onset. Familial - a family with prostate cancer present in more than one person, but with no definitive pattern of inheritance and usually an older age of onset. Hereditary - Five to 10 percent of prostate cancer cases are considered hereditary. Genetic Approximately 9 percent of all prostate cancers and 45 percent of cases in men younger than age 55 can be attributed to a cancer susceptibility gene that is inherited as a dominant trait (from parent to child).

Prostate Cancer Prevention

Knowledge is your best weapon for good prostate health and avoiding prostate cancer. Some lifestyles, eating habits, and dietary supplements are thought to lead to lower levels of prostate cancer, as well as other cancers. Nobody can guarantee prostate cancer prevention through behavior, diet, treatment, or medicine, but there things you can do to improve your odds.

There is some evidence that links exercise to better prostate health. Exercise improves overall physical and mental health, so most medical professionals recommend at least a half an hour of exercise per week. Some studies indicate that regular exercise increases oxygen flow to the soft tissues of the body and helps to control glucose levels in the bloodstream. High levels of glucose may help fuel prostate cancer cells.

A healthy prostate diet is worth considering. High-fat and low-fiber diets and obesity seem to contribute to a higher risk of prostate cancer, Researchers theorize that high levels of body fat can stimulate the production of male hormones which encourage prostate cell production. Some researchers believe that cancerous prostate cells can feed on fat, especially fats found in red meat and dairy products. Omega 3 fatty acid, found in fish, soy, and flaxseed is known as the "heart-healthy" fats. Omega-3 fatty acids help decease fats found in the body. Countries whose diets are based on fish proteins rather than red meat have much lower rates of prostate cancer. Soy products can decease how cancerous cells move to other parts of the body. Soy products include tofu, soymilk, soy creamers, soy yogurts, soy ice creams, and tofu burgers and sausages often stocked in grocery stores today. Silken tofu or soy powder can be added to baked goods or drinks to receive the benefits of soy. Red grapes, grape juice, green teas, and red wine contain anti-oxidants that can neutralize cancer-causing agents within the body. Lycopene found in tomatoes, and beta-carotene may be beneficial in helping to protect the body from the risk of prostate cancer. Eating a variety of fresh fruits and vegetables may help boost the body's cancer fighting abilities and over-all health.

Prostate Health Supplements such as vitamin E and selenium have been linked to a drastically decreased risk of prostate cancer. Studies of vitamin E and selenium seem to benefit those who were deficient in either, or who were ex-smokers. Studies have also linked a daily regimen of aspirin or ibuprofen to lower risks of prostate cancer. As always, talk to your doctor before starting any prolonged use of supplements or aspirin.