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Posts Tagged ‘ cancer ’
Radiation therapy is certainly hard on the body. For those who are in the process of going through it, there have been questions regarding whether one can continue taking antioxidants and supplements. The concern is whether it will reduce the effectiveness of the therapy.
While radiation therapy kills cancer cells, it also damages neighboring, non-cancerous cells. For most people who experience radiation injury to the intestine, the condition usually clears up within a few weeks of treatment. But in 10% to 20% of the patients, it persists. The people in this study had all experienced these symptoms for six months or more.
Doctors say that while radiation proctitis can be a very disabling condition for many people, that taking antioxidant treatments makes a lot of sense. Evidence now suggests it may possibly work as a first-line treatment for patients who experience diarrhea, urgency, or fecal incontinence.
What do antioxidants do? They protect cells from DNA damage that can be caused by unstable forms of oxygen called free radicals. High radiation doses aimed at a prostate, cervical or endometrial cancer cause high levels of free radicals that create enough DNA damage to destroy the malignant cells. But, stray radiation can also damage the nearby rectum.
Vitamin E is a potent antioxidant, and vitamin C increases the effects of vitamin E.
Research by Cancer Treatment Centers of America have found that antioxidants provide nutritional benefits to cancer patients undergoing radiation treatment without interfering with the treatment itself.
The study, entitled “Effect of Concomitant Naturopathic Therapies on Clinical Tumor Response to External Beam Radiation Therapy for Prostate Cancer,” was presented at the non-profit Society of Integrative Oncology’s Third International Conference in Boston.
Most doctors said they felt that radiation therapy, chemotherapy and surgery are the best treatment options for cancer patients, but the side effects of the treatments can be physically and emotionally damaging. In the past, doctors were concerned about antioxidant use with radiation treatment in that it might interfere with the cancer cell oxidation levels that assist chemotherapy and radiation in killing tumors. To address this, the Cancer Treatment Centers of America researchers analyzed the prostate specific antigen (PSA) levels of prostate cancer patients after radiation therapy, and found no difference between the control group and the group using antioxidants such as green tea extract, melatonin, high-potency multivitamins, vitamin C and vitamin E.
Doctors say that the study provides evidence that antioxidants as a complementary therapy in cancer treatment does not interfere with external beam radiation therapy and that antioxidants are one of many complementary and alternative medicine therapies that are crucial in today’s fight against cancer.
More than 80 percent of the cancer patients interviewed for the report said they had used some sort of complementary and alternative medicine treatment, many without any sort of medical supervision.
In the end, it was proven that taking antioxidants helped patients and was beneficial to their overall sense of well-being in addition to helping them assimilate to the radiation. R. Fredriksen is the Vice President of Nutrition Dome, a leading provider of Jarrow Formulas, Pioneer Nutritional Forumulas and other quality supplements. For more information, please visit www.nutritiondome.com.WordPress Autoblog Plugin
Continue Reading »What are antioxidants?
Antioxidants are intimately involved in the prevention of cellular damage, the common pathway for cancer, aging, and a variety of diseases. The scientific community has begun to unveil some of the mysteries surrounding this topic, and the media has begun whetting our thirst for knowledge.
Why are athletes so keen on Antioxidants?
Athletes have a keen interest because of health concerns and the prospect of enhanced performance and/or recovery from exercise. The purpose of this article is to serve as a beginners guide to what antioxidants are and to briefly review their role in exercise and general health. What follows is only the tip of the iceberg in this dynamic and interesting subject.
What Causes Aging?
Scientists have discovered that the metabolic rate of animals is related to their life span. Therefore, larger animals do not consume as much oxygen per unit of body mass as smaller animals, and larger animals live longer. Consequently, researchers believe that aging is connected with oxygen metabolism and involves free radicals. Thus, the faster oxygen is consumed by an organism, the more free radicals it might make.
Antioxidant Role
Antioxidants are molecules which can safely interact with free radicals and terminate the chain reaction before vital molecules are damaged. Although there are several enzyme systems within the body that scavenge free radicals, the principle micronutrient (vitamin) antioxidants are vitamin E, beta-carotene, and vitamin C. Additionally, selenium, a trace metal that is required for proper function of one of the body’s antioxidant enzyme systems, is sometimes included in this category. The body cannot manufacture these micronutrients so they must be supplied in the diet.
What Vitamins Contain High Antioxidants?
Vitamin E: d-alpha tocopherol. A fat soluble vitamin present in nuts, seeds, vegetable and fish oils, whole grains (esp. wheat germ), fortified cereals, and apricots. Current recommended daily allowance (RDA) is 15 IU per day for men and 12 IU per day for women.
Vitamin C: Ascorbic acid is a water soluble vitamin present in citrus fruits and juices, green peppers, cabbage, spinach, broccoli, kale, cantaloupe, kiwi, and strawberries. The RDA is 60 mg per day. Intake above 2000 mg may be associated with adverse side effects in some individuals.
Beta-carotene is a precursor to vitamin A (retinol) and is present in liver, egg yolk, milk, butter, spinach, carrots, squash, broccoli, yams, tomato, cantaloupe, peaches, and grains. Because beta-carotene is converted to vitamin A by the body there is no set requirement.
So, remember to take the right vitamins in order to maintain optimum health! Antioxidant supplements is the easy way to ensuring that our body is getting sufficient supply of antioxidants! Can <a href="http://Antioxidants.eask.info” rel=”nofollow”>Antioxidants Prevent Cancer and Aging? More Info at http://<a href="http://Antioxidants.eask.info” rel=”nofollow”>Antioxidants.eask.infowholesale swarovski crystals
Countless researches has been done on defining the role of antioxidants in preventing, or slowing down the growth of cancer. And the good news is, considerable laboratory evidence from chemical, cell culture, and animal studies indicates that antioxidants may slow or possibly prevent the development of cancer.
Antioxidants are necessary because they combat free radicals. Free radicals are byproducts that are formed when oxygen is used by the body. Free radicals start a chain reaction under the skin’s surface, and outlined below is the process of destruction.
What are Free Radicals?
They have an unpaired electron in their outer orbital, making the molecule unstable.
Free radicals attempt to gain an electron from natural proteins in the skin to acquire stability.
This sets off a chain reaction because all molecules want to form an octet, which is an atom with eight valence electrons. In the aftermath of the reaction are free radical waste products of misshapen and broken molecules. Therefore, the structure of our skin is damaged and its cellular structure is weakened.
Dangers of Free Radicals!
Free radicals is capable of altering our DNA, which results in aging and illness! We definitely do not want that to happen to us!
How Antioxidants Prevent Cancer?
Antioxidants neutralize free radicals as the natural by-product of normal cell processes. Free radicals are molecules with incomplete electron shells which make them more chemically reactive than those with complete electron shells. Exposure to various environmental factors, including tobacco smoke and radiation, can also lead to free radical formation. In humans, the most common form of free radicals is oxygen. When an oxygen molecule (O2) becomes electrically charged or radicalized it tries to steal electrons from other molecules, causing damage to the DNA and other molecules. Over time, such damage may become irreversible and lead to disease including cancer.
Antioxidants are often described as mopping up free radicals, meaning they neutralize the electrical charge and prevent the free radical from taking electrons from other molecules.
How to Incorporate Antioxidants in my Diet?
Epidemiologic observations show lower cancer rates in people whose diets are rich in fruits and vegetables. This has lead to the theory that these diets contain substances, possibly antioxidants, which protect against the development of cancer. There is currently intense scientific investigation into this topic. Thus far, none of the large, well designed studies have shown that dietary supplementation with extra antioxidants reduces the risk of developing cancer.
Can Antioxidant Slow the Aging Process Too?
Antioxidants are also thought to have a role in slowing the aging process and preventing heart disease and strokes, but the data is still inconclusive. Therefore from a public health perspective it is premature to make recommendations regarding antioxidant supplements and disease prevention. New data from ongoing studies will be available in the next few years and will shed more light on this constantly evolving area. Perhaps the best advice, which comes from several authorities in cancer prevention, is to eat 5 servings of fruit or vegetables per day.
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Some of the most powerful preventative medicines in nature are found in the produce section of your local grocery store. Antioxidants and xanthones abound in fruits like mangosteen, blueberries, pineapples, goji berries, sea buckthorn, sour cherries, cranberries, lychee, and star fruits.
You’ve likely heard lots about their health benefits, but what are antioxidants and xanathones, exactly? According to the National Cancer Institute, “Antioxidants are substances that may protect cells from the damage caused by unstable molecules known as free radicals. Free radical damage may lead to cancer,” (Blot, 1993).
Essentially, antioxidants interact with and neutralize some free radicals before they cause damage at the cellular level. This is also thought to provide anti-aging benefits by promoting healthy skin cells. A study conducted by Halliwell (1996) states that people have a diet with plenty of antioxidants and avoid smoking, which is a major source of free radicals, for optimal health.
Pineapple, sour cherries, cranberries, and blueberries are all very high in antioxidants. It is recommended that you eat all of these fruits regularly, as the type of antioxidant found in each fruit differs from the others. Supplements are also available for many of these types of fruits.
Researchers in Singapore recently discovered that star fruit was unusually high in antioxidants. The funny looking fruit was found to have “over 70 percent of the total polyphenol content of the whole fruit,” (Shui, 2006).
According to Decision News Media in 2006, “The US antioxidant market was estimated to be $370 million in 2005.” It is a booming business that offers many people the potential to consume chemicals that may work to prevent cancer later in life.
Xanathones are highly specific phytochemicals found in just a few specific tropical fruits. The mangosteen, more specifically the rind of the mangosteen fruit, contains over 30 different kinds of xanathones. Some merchants refer to them as “super-antioxidants.”
They are thought to be very potent antioxidants, perhaps the most potent available in nature according to certain researchers. They are heat stable molecules that will not lose their structure when heated, which is beneficial in the metabolic process.
Xanathone manufacturers claim that the chemical compound can reduce the risk of heart disease, stroke and other circulatory problems, as well as promote an overall sense of health. As of yet, no clinical trials have been completed to back up these claims because the FDA considers xanathones a nutritional supplement and not a medicine.
Whether or not antioxidants and xanathones will keep you from getting a specific disease, modern science simply cannot say. But research does indicate that antioxidants do neutralize certain types of free radicals. Such free radicals are thought to be carcinogens. So, if consuming antioxidant rich fruits and vegetables increases your odds for disease prevention, why wouldn’t you add them to your diet?
Many doctors and nutritionists advocate the use of antioxidants to promote your overall health, so slice up a star fruit and grab a glass of cranberry juice if you want to raise the odds in favor of your long-term health. T. Fox researches healthy smoothies ,a mix of blenders and health ingredients, and negative ions , all resulting in collaboration. People perform better when they are healthy.Smartphone Software
Antioxidants are molecules of nutrients in food that prevent oxidation from damaging the human body. Oxygen is used by the human body which produces a by-product that causes damage. The antioxidants act in a way to repair the damage done by the by-products. Some of the damages done by oxidative damage are diabetes, macular degeneration, heart disease and cancer. Some of the most commonly known antioxidants are vitamin A, vitamin C, vitamin E, selenium, and caroteniods.
Antioxidants are very helpful to human health. Some research states that foods that contain antioxidants can actually delay many of the age related diseases. Continual research is always being done about the knowledge of antioxidants. Antioxidants neutralize the by-products of the body. By products can be created not only by oxygen but other factors as well. Radiation and tobacco smoke are two things that cause by products. After a long period of time the damage that is done by the by products can not be reversed this can create cancer. But the antioxidants come in and prevent the by products from taking from other molecules which might help to prevent against cancer.
Another thing that also creates more by products in the body is over exercising. It puts more oxygen into the body and the oxygen creates by product. This concerns some people because it might worsen the damage to muscles. Since it is not possible to measure the amount of by products that are in the body there is not way to tell if a dangerous amount is in the body and if extra antioxidants are going to need to be taken. The damages from exercising occur over time. Regular exercise can increase the antioxidant defenses and protect against the by products create by exercise.
There are a lot of foods that have antioxidants, fruits, vegetables, grains, even some meats have them. Leafy green vegetables have Lutein and carotene. Carotene is also found in things like sweet potatoes, carrots, cantaloupe, squash, pumpkins and mangos. Carotene is usually found in foods that are orange in color.
Lycopene is found in such foods as tomatoes, watermelon, grapefruit, papaya, and guava. Most people get there intake of lycopene from tomatoes and tomato products. The mineral selenium isn’t antioxidants but have the same component. It is found in such foods as rice, meats, and bread. Brazil nuts have a high amount of selenium in them too
The vitamins A, C and E are also great in getting antioxidants. Foods that have a lot of vitamin A are liver, milk, egg yolks, carrots, mozzarella cheese and sweet potatoes. Cereals, beef, poultry, and fish are really high in vitamin C. So are many fruits and vegetables. Vitamin E is found in safflower, corn and soybean oils, wheat germ, and almonds. You can also find it in mangos, broccoli, and nuts.
A study has been done on antioxidants to see if they help to reduce the toxic effects of lead. The base of the research was that the main cause of lead being toxic is the oxidative stress. An imbalance was created between the by-products and the antioxidants in the body. This caused an excessive amount of by product in the body and resulted in destroying the tissues. Common symptoms of lead poisoning are anemia, irritability, headaches, weight loss, and motor impairment. Most lead poisoning is caused by eating foods with lead in them and by contact with an environment that has lead in it. The testing done to prove that antioxidants will reduce the toxins from lead was proven to be effective. WP Robot


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