Lysine is an essential alpha-amino acid, in that it cannot be biosynthesized by the human body, and therefore must be taken in your diet or as a supplement. It is synthesized in plants from aspartic acid, and metabolized in the body to produce acetyl-Coenzyme A (acetyl-CoA).
Before discussing its action on herpes, we shall first have look at how Lysine helps with the formation of collagen. Collagen is a protein that is produced in the body from lysine and proline, another amino acid. In fact the primary role of amino acids in your diet is as building blocks to form the much larger protein molecules.
Collagen is fibrous, and forms the connective tissue such as cartilage, ligaments, tendons, blood vessels and skin. Even the external parts of the ears. It literally holds our skeletons together, and wraps the whole body up in skin, so if we had no collagen we would literally fall apart! Collagen is also used by body cells to form the matrix that the b ody cells use to attach to each other and is one of the most important types of tissue in your body.
It is so ubiquitous that over 30% of the protein contained in your body is collagen, and it is designed for its structural strength as opposed to its ability to take part in chemical reactions as other proteins are. Lysine and Vitamin C are essential for the maintenance and formation of collagen.
There is not a lot of lysine in collagen - only about 4%, but it is very active in the cross-linking that forms the fibrils of collagen. Fibrils are the hair-like structures formed in a triple helix arrangement by three protein chains twisting round one another. The fibrils are bundled together in a straight line that has amazing tensile strength. The tensile strength of collagen is, weight for weight, stronger than steel!
In order for lysine to take part in this process effectively, some molecules have to be hydroxylated and others oxidized, fo rming aldehydes. Things can go wrong here, and deficiencies in the metabolic process can lead to some heritable conditions, or diseases of connective tissue. Among these are lathyrism, Cutis-Laxa and the Menkes kinky hair syndrome.
However, lysine is a very versatile amino acid, and not only is it necessary for the biosynthesis of all proteins, but is also heavily involved in the production of enzymes, hormones and antibodies. It is an important component of the calcium absorption process, and also, as previously stated, can be used in the treatment of herpes simplex.
This form of herpes is known commonly as 'cold sores', and is a result of the activity of the herpes virus. Viruses do not reproduce in order to ensure the 'continuation of the species', but replicate. In order to achieve this it requires the help of another amino acid, arginine. This is a common amino acid whose sources include grains, seeds, peanuts, raisins and chocolate.
Lysine and arginine competes for the absorption and entry of tissue cells, and reduces the strength of arginine, so preventing the growth of herpes. For this reason a supplement of lysine can be used to reduce the effects of the herpes simplex virus, and lessen the symptoms of the cold sore.
However, it is not only cold sores but other forms of herpes that lysine can help to relieve. Herpes zoster is a virus that causes shingles. This virus is generated by the reactivation of the dormant varicella-zoster virus left in the tissues after chickenpox. It is a recurrent condition, and lycine can help to reduce recurrences as well as its severity. Apart from being an effective defense against herpes, and forming collagen, the amino acid imparts several other benefits to the human body.
Among these is osteoporosis. L-lysine is involved in calcium absorption in the intestine, and also helps to reduce the loss of calcium in the urine. In osteoporosis we h ave to try to make every calcium molecule ingested in the diet to be incorporated in the bone structure. L-arginine can work with lysine to enhance the activity of the body cells that produce bone.
Canker sores are often mistaken for cold sores, but they are actually quite different. They are small sores inside the mouth, and appear in the form of very painful ulcers. The cause is unknown, but is believed to be a virus, and lysine appears to help the condition. Although there have been no proper clinical tests carried out on its use as a remedy for canker sores, lysine appears to help, and a supplement is recommended as a treatment by many doctors. It will do no harm, and anybody suffering from these tiny but painful sores will try anything.
Although lysine deficiency is rare, it can occur, particularly amongst those observing a vegetarian macrobiotic diet, and also in athletes who frequently undertake vigorous exercise, especially with too little r ecovery time. The effects of a deficiency are fatigue, nausea, appetite loss, anemia, slow growth and kidney stones. The latter is likely due to a failure to absorb calcium, that L-lysine promotes, and the formation of calcium oxalate and other insoluble salts in the kidney.
Dietary sources include beans and other legumes, and although it should be available in cereals, baked foods and doughnuts, for example, the carmelization of sugars binds the lysine to the sugar, and so reducing its bioavailability. However, you can also get it in cheese, eggs, tofu and red meats.
If you are taking an arginine supplement, you should consult your physician prior to taking lysine. The reason for this is that lysine and arginine share biochemical pathways, and arginine can reduce the effective concentration of lysine.
However, it has not been tested by the FDA, nor approved, and any use is at your own risk. This risk appears to be very small, although its manufacture is not regulated. However, do not let this bother you: the proof of the pudding is in the eating as they say.
Many have found lysine to be effective with collagen or herpes problems, and a supplement of between 3,000 and 9,000 mg per day is recommended for those with herpes viral infections. It is not recommended for children under two years old. Lysine is available at your local or internet health food store at discount prices. Look for name brands to ensure purity and quality of the product you purchase.