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Re: Free Radicles

Posted By: DaveB
Date: Wednesday, January 23 2008, at 7:28 a.m.

In Response To: Re: Free Radicles (Emily)

> I understand how they are formed, but do you know how > they cause diseases of aging? Once formed these highly reactive radicals can start a chain reaction. In fact, just about every cell in your body gets about 10,000 "hits" a day by free radicals. Their chief danger comes from attacking too many molecules, in which case cell death may occur damaging entire organs and causing them to stop working. The damage they can do when they react with important cellular components such as DNA, or the cell membrane could trigger the developement of certain diseases such as cancer. To prevent free radical damage the body has a defense system of Antioxidants Antioxidants go on a search and destroy mission and interact with free radicals and "disarm" them before vital molecules are damaged. In order to do that the antioxidant gives up one or more of its atoms to stabilize the free radical causing it to become a "normal" molecule. Now, why you may ask doesn't the antioxidant become a free radical? Well, actually it does but, it's structure is more stable and is therefore neither toxic nor reactive. However different antioxidant have been known to interact with each other. Let's say, vitamin E gives up an electron to a free radical and becomes oxidized. Vitamin C, as an example, can interact with the modified vitamin E and return it to its original state. Although there are several enzyme systems within the body that scavenge free radicals they may not be effective enough as we age. In order to be assured that our bodies have enough antioxidants to prevent damage caused by free radicals there are some very effective supplements available. See the next post for more info on Antioxidants. DaveB

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Free Radicles
DaveB -- Sunday, August 28 2005, at 10:20 a.m.

 

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Message: > Once formed these highly reactive radicals can start a > chain reaction. In fact, just about every cell in your > body gets about 10,000 "hits" a day by free > radicals. Their chief danger comes from attacking too > many molecules, in which case cell death may occur > damaging entire organs and causing them to stop > working. The damage they can do when they react with > important cellular components such as DNA, or the cell > membrane could trigger the developement of certain > diseases such as cancer. To prevent free radical > damage the body has a defense system of Antioxidants > Antioxidants go on a search and destroy mission and > interact with free radicals and "disarm" > them before vital molecules are damaged. In order to > do that the antioxidant gives up one or more of its > atoms to stabilize the free radical causing it to > become a "normal" molecule. > Now, why you may ask doesn't the antioxidant become a > free radical? Well, actually it does but, it's > structure is more stable and is therefore neither > toxic nor reactive. However different antioxidant have > been known to interact with each other. Let's say, > vitamin E gives up an electron to a free radical and > becomes oxidized. Vitamin C, as an example, can > interact with the modified vitamin E and return it to > its original state. > Although there are several enzyme systems within the > body that scavenge free radicals they may not be > effective enough as we age. > In order to be assured that our bodies have enough > antioxidants to prevent damage caused by free radicals > there are some very effective supplements available. > See the next post for more info on Antioxidants. > DaveB
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