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Re: Anti-oxidants help restore eyesight (Russia)
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CATALASE KINETICS
http://www.science-projects.com/catalasekinetics.h tm
C A T A L A S E
.....Catalase is nearly ubiquitous among organisms that can grow in the presence of oxygen (air). ..The major function of catalase within cells is to prevent the accumulation of toxic levels of hydrogen peroxide formed as a by-product of metabolic processes - primarily that of the electron transport pathway. ..The only exceptions are the "lactic acid bacteria," which cannot synthesize the fundamental building block porphyrin, and hence do not even possess cytochromes that would otherwise make the toxic H2O2.
ANALOGY: A way to consider the affects of various sorts of inhibitors is to think of a supermarket. ..(1) A competitive inhibitor would be someone who enters the checkout line without money. ..The clerk tallies the items, only to discover the impecunious state of the false customer, who then must be evicted, with no useful work done. ..If half of the customers were without money, the clerks would work half their time needlessly. ..If the proportion of paying customers is increased, the efficiency of checkout is increased. .. If the proportion of payers to cashless customers approaches infinity, then greater and greater efficiency is reached. .. If the absolute number of payers reaches infinity, then Vmax is reached because the clerks are working without any lapses between the customers. ..(2) Now consider customers whose shopping carts get jammed in the checkout lane - effectively shutting down the lane. .. Does increasing the proportion of normal customers help the efficiency? .. (3) What if the teamsters go on strike and the supermarket is only sporatically stocked. ..What affect on efficiency occurs as customers increase? .. So long as the customers are few, the laggardly stocking of the shelves suffice. .. But as the customers increase, shortages rapidly become evident. ..(4) What about customers who come in with counterfeit money that is not recognized immediately? .. It would be like E. coli's trying to grow on a mix of lactose and ONPG. Whenever it grabs ONPG it puts it through the "checkout lane" alright, but then the product cannot be used. ..It might also be like customers who cannot fit out the exit door!
.....An ANALOGY for activation energy might go this way: Imagine a barracks of troops. .. It is a very cold winter morning. .. The troops don't want to get out of their warm beds. .. As spring progresses however, the sergeant needs to make less and less threatening remarks to get the troops "activated." .. However, if global warming eventually made it too hot, the troops would die, and could never be "activated."
.....Or maybe you'll like this EXAMPLE (not an analogy!) of activation energy better. .. You are at a large amusement park and have just been seated in a roller coaster. The brake is released that the train rolls foreward just a little bit. .. Ahead of you is a huge incline up which a chain pulls you to the top. .. What has happened here? .. What do you have as evidence? .. You and the train have been "activated". .. If the train were to have stalled at the very top, you would have time to look around and see that you were higher than any other peak on that ride. .. So were this a frictionless world, once released you'd "fly" all the way to the end of the line. .. But this is not a frictionless world, and so there is often another "activation" along the way. .. Happily for physicists, activation energy can often be easily calculated quite directly - what mass had to be lifted to what height to give the required potential energy.
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Re: Anti-oxidants help restore eyesight (Russia)
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Oral supplements are available for SOD, catalase, and glutathione peroxidase; however, these substances may be digested in the intestine before they ever reach the bodily tissues. Giving the body extra amounts of the building blocks it requires to make these natural antioxidants, such as manganese, zinc, copper, and selenium, may be a more effective way to increasing their presence in the body.
http://www.vitaminstuff.com/catalase.html
The best sources for magnesium are: whole grains and whole-grain breads, nuts and seeds, green leafy vegetables, potatoes, beans, avocados, bananas, kiwi, broccoli, shrimp, and chocolate (yes, chocolate!). So it is ok to eat chocolate!
The best sources for zinc are found in: red meat, poultry, oysters and other seafood, nuts, dried beans, soy foods, milk and other dairy products, whole grains, and fortified breakfast cereals. A deficiency in zinc can cause loss of appetite, growth retardation and immunological abnormalities.
Sources for copper include: cocoa; liver, kidney, oysters, peas and raisins.
Sources for Selenium are found in: egg yolk; garlic; seafood, and whole-grain flour.
and chase it down with some wine, and some chemical and additive free tobacco or cannabis.
...and keep an ear out for the Canaries.
pills are awfully convenient, but get it RAW when you are able and especially when you are dissed or differently able.
http://www.rawilson.com/
http://www.rawilson.com/graphics/RAWLogo.png
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