L-Arginine is the so-called semi-essential amino acids (ie amino acid by the organism under certain conditions, can not act alone and in sufficient quantities to produce - this situation typically occurs in periods of growth, increased physical exertion, illness, etc.). In his most natural diet includes chicken and turkey broth and caviar. But the more important natural resource is also green peas, egg whites, peanuts, chocolate and cereals. Arginine, which is derived from these sources have, however, is not as effective. We already mentioned "broth, which is one of the most degraded forms of food in digestion, and during recovery for the elderly that will not ignore the quality of their diet (and generally suffer from lack of protein or loss of ability is first processed in the digestive tract and ultimately used).
Of course, but you can not rely on that in a state of illness just enough broth. L-Arginine is the physiological conditions produced in the body called the urea cycle of biochemical amino acid ornithine. Arises mainly in the tissues of kidney, liver and brain (where arginine also arises from the amino acid citrulline). Simply cycle of physiological transformations described as follows: the amino acid glutamine (captured in the gut), it is immediately converted to citrulline, which is released into the bloodstream. The blood citrulline uptake in the kidneys, may be converted to arginine, and he is released back into circulation. On the contrary, arginine released from the blood detected in the intestinal tissue and converted back to citrulline and ornithine. Arginine serves as a transport medium for essential nitrogen. The transformation of arginine provides a way of oxidative molecule nitric oxide, especially in endothelial cells of blood vessel walls, in macrophages, neutrophils and nerve cells. Higher local concentrations of nitric oxide in turn leads to other effects, the expansion of blood vessels (vasodilator effect), to slow the growth of cancer cells and bacteria.
Nitric oxide (NO) is the body primarily being generated from arginine - a sufficient amount of nitric oxide is essential for maintaining vascular patency (vasodilating effects, vasodilatation), promoting erections and male fertility. Higher levels of carbon monoxide causes complete muscle blood flow (including sex), improved erectile ability and sexual experience, improves supply to the heart and brain of oxygen, increases blood flow to the muscles.
Equally important is the stimulation of spermatogenesis, which is very valuable when the quality of male sperm and their ability to fertilize an egg intergenerationally demonstrably reduced. The actual amino acid arginine and served occasionally (irregular income) causes secretion (flooding) of the complete spectrum of hormones from the most interesting is glucagon, insulin and growth hormone in particular. Growth hormone as a natural part of the body lidkého reliably supports the formation of muscle mass, which also focus on the most athletes and especially bodybuilders.
Arginine accelerates cell renewal, it is necessary to increase protein synthesis (protein synthesis), increased muscle can be explained both by direct stimulation of growth hormone GH and NO production of nitrogen oxides, which cause better blood supply to muscles - the muscle to get larger quantities of nutrients, increases "pump up muscle" and ultimately muscle growth. In addition to increasing muscle growth has the amino acid arginine to burn fat. Arginine stimulates the immune system, in case of infection caused by overgrowth of leukocytes. This is often used in clinical medicine to treat wounds, burns, and after-care of most traumatic and postoperative and long-term illness. Arginine is a natural anticoagulant agent limiting platelet aggregation, maintain optimal function of the cardiovascular system, reduces the risk of atherosclerosis and regulates blood pressure, restores the elasticity of blood vessels. Through the nitrogen carries nerve impulses in the brain (neurotransmitter) and regulates the activity of the digestive tract for example, coordination and long-term memory. Stimulation of nitric oxide and growth hormone has a potential antioxidant, prevents the adverse effects of free radicals.
Recently, the arginine in the form of supplementary feeding is an increasing interest not only for athletes to accelerate muscle development, regeneration and improvement of athletic performance, but increasingly is used as the general population.