Arginine is considered a semi-essential amino acid because even though the body normally makes enough of it, supplementation is sometimes needed. For example, people with protein malnutrition, excessive ammonia production, excessive lysine intake, burns, infections, peritoneal dialysis, rapid growth, urea synthesis disorders, or sepsis may not have enough arginine. Symptoms of arginine deficiency include poor wound healing, hair loss, skin rash, constipation, and fatty liver.
Arginine changes into nitric oxide, which causes blood vessel relaxation (vasodilation). Early evidence suggests that arginine may help treat medical conditions that improve with vasodilation, such as chest pain, clogged arteries (called atherosclerosis), coronary artery disease, erectile dysfunction, heart failure, intermittent claudication/peripheral vascular disease, and blood vessel swelling that causes headaches (vascular headaches). Arginine also triggers the body to make protein and has been studied for wound healing, bodybuilding, enhancement of sperm production (spermatogenesis), and prevention of wasting in people with critical illnesses.
Arginine hydrochloride has a high chloride content and has been used to treat metabolic alkalosis. This use should be under the supervision of a qualified healthcare professional.
Isolated soy protein added to the diets of 14 men, all military veterans under treatment for advanced stages of type 2 diabetes, significantly lowered unwanted proteins in their urine and slightly raised desired HDL cholesterol levels in their blood, researchers say.
Moderate exercise in conjunction with common dietary supplements significantly reduce the risk of atherosclerosis because, combined, they boost the body’s production of nitric oxide, which protects against a variety of cardio-vascular disorders, a new UCLA study led by 1998 Nobel Laureate in medicine Louis J. Ignarro shows.
A quick new technique able to identify genes that evolve rapidly as well as those that change slowly already has pinpointed new targets for researchers developing drugs against tuberculosis and malaria, and it could do the same for other infectious diseases, according to a paper in this week's Nature.
Adenoidectomy and tonsillectomy (adenotonsillectomy) remain two of the most commonly performed surgeries in the United States. For the most part, these procedures are safe and effective; however, risk of post-operative bleeding remains a concern.
A new clinical study shows that substituting walnuts for monounsaturated fat in a Mediterranean diet improves, and even restores, endothelial function (the property of arteries to dilate in order to meet an increased demand of blood, for instance due to a physical effort). Walnuts also reduce harmful cell adhesion molecules which are associated with atherosclerosis, commonly known as hardening of the arteries. These dual effects enhance the circulatory system, therefore aiding in the prevention of heart disease.