Saturday, May 28, 2011

How do Antioxidants prevent of chronic diseases such as cancer, heart disease, and macular degeneration

How do Antioxidants prevent of chronic diseases such as cancer, heart disease, and macular degeneration?
What do the antioxidants do to promote prevention?
Other - Health - 2 Answers
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1 :
Its a long explanation but it all basically comes down to antioxidants neutralize free radicals. Free radicals are byproducts of metabolism and roam around the body damaging any cell it touches. When you have to many free radicals you begin to damage many cells which lead to diseases. Especially cancer which is by definition an uncontrolled cell duplication. Cells usually dupicate when one copy becomes damages..ie free radicals. This can turn out of control when the body is constantly duplicated cells at a high rate. Cancer ensues. Apoptosis is programmed cell death which the body usually does to cells that are damaged or deformed, when this fails it can begin duplicating the deformed cells causing diseases. So thats how free radicals destroy the body and how antioxidants help prevent diseases
2 :
Antioxidants help to slow down the ageing process as they kill or immobilise free radicals to some extent and free radicals in our bodies is what causes the ageing process and also causes cancer

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Tuesday, May 24, 2011

How do Antioxidants prevent of chronic diseases such as cancer, heart disease, and macular degeneration

How do Antioxidants prevent of chronic diseases such as cancer, heart disease, and macular degeneration?
What do the antioxidants do to promote prevention?
Medicine - 3 Answers
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1 :
The DNA in our chromosomes is subject to oxidation by free radicals; when they oxidize they lose telomeres, that is really reserve DNA matter for repair. Antioxidants is thought prevent the damage. Damaged DNA can prompt cellular apoptosis (cell death) or can in a way mutate and facilitate cancers or inflammation. Is a little more complicated but in a nutshell and very basic is what they do.
2 :
Because we use oxygen for energy production, our cells are constantly exposed to oxygen. Oxygen is a very 'toxic' molecule (think about rust on a nail caused by exposure to oxygen). Excessive toxicity in the body from oxygen is called "Oxidative Stress". Oxidative Stress damages many types of vital molecules such as DNA, RNA, proteins/enzymes and cell membranes (phospholipids). Damage to these various components of cells are well documented to contribute to chronic diseases such as cancer, cardiovascular disease, AMD, Alzheimer's disease (neurodegenerative disease), etc. "Antioxidants" help to control the amount of oxidative stress that is being constantly produced in the body. So, antioxidants can't absolutely prevent disease (nothing can), but they limit the amount of damage oxygen causes, and thereby, reduce the risk or delay the onset of these common diseases. Hope this is helpful for you. Best wishes. P.S. you can do a simple experiment to see this process in action. Disolve 1000 milligrams of vitamin C in about 4 ounces of water. Cut two wedges from a fresh apple. Dip one apple wedge in the vitamin C/water for about 10 seconds. Dip the other apple in just plain water. Then set both wedges on the counter to get exposure to the air (oxygen). Observe which apple 'browns' (oxidizes) first!
3 :
our bodies undergo several chemical reactions. We utilize several minerals such as iron, magnesium, oxygen and such to perform specific reactions such as formation of proteins, absorption and many others. Of course, when we utilize these minerals we are producing products and some these products are toxic and harmful to the body. These are called free radicals. Free radicals may cause the cells' receptors accept certain minerals that are not usually used in their metabolism and reproduction. Thus, this may result to cell mutation. Cell mutation render a cell in effective. it may kill the cell or it can turn it into cancerous ones due to malfunction in it's replication. And because of this malfunction, cancer cells are produced and developed until they metastasize and affect organs and tissues. when tissues and organs are affected, it will eventually cause the organs to atrophy and malfunction as well.. +++ anti oxidants act on these free radicals by oxidizing or reducing them into their inactive form to be recognized and excreted instead of absorbed by the cells. +++ a major anti oxidant is methionine... the main ingredient for anti oxidant supplements like glutathion or metathione

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Friday, May 20, 2011

If you had rheumatic fever what is the chances of rehumatic heart disease

If you had rheumatic fever what is the chances of rehumatic heart disease?
I know that it can sometimes take 10 years to find out if there is damage to the heart from rehumatic fever. But is there anykind of statistics or numbers that show the likely hood of damage to the heart? linkz it you have them
Heart Diseases - 2 Answers
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1 :
Lots of people don't get any damage. Lots of people get a heart murmur that causes no problems. And, some get actual damage that causes problems that need to be monitored and treated.
2 :
Actually, there are not too many people who have rheumatic fever these days. But for those who have had it, it is a good idea to try to stick with the same physician, Keep good medical records that you can take with you if you move, and get regular check ups. The thing about rheumatic fever is that it can do a lot of damage to your heart valves. If you start out with a small murmur, they will monitor you. If it gets louder, they will order an echocardiogram to determine if your valve is beginning to fail. Catching the valve before it enlarges the chambers of your heart is crucial. They can fix it then. All of this is, of course, if you are one of the people whose rheumatic fever caused an issue with their heart. I believe it depends on the severity of the disease and the treatment of it. So don't panic. Just get the check ups, if the dr. says you have a murmur, ask for an echo. Good luck

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