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Topic: Arginine

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Serine

Stop codon

Amino acid

Histidine

Agmatine

Perchloric acid

Nitric oxide

Vitamin P

Tyrosine

Glutamic acid

Aspartic acid

Phenylalanine

Lysine

Pantothenic acid

List of biomolecules

	Arginine - Wikipedia, the free encyclopedia
		Arginine can be considered to be an amphipathic amino acid as the part of the side chain nearest to the backbone is long, carbon-containing and hydrophobic, whereas the end of the side chain is a complex guanidinium group.
		On a whole-body basis, synthesis of arginine occurs principally via the intestinal–renal axis, wherein epithelial cells of the small intestine, which produce citrulline primarily from glutamine and glutamate, collaborate with the proximal tubule cells of the kidney, which extract citrulline from the circulation and convert it to arginine, which is returned to the circulation.
		Arginine is the immediate precursor of NO, urea, ornithine and agmatine; is necessary for the synthesis of creatine; and can be used for the synthesis of polyamines (mainly through ornithine and to a lesser degree through agmatine), citrulline, and glutamate.
	en.wikipedia.org /wiki/Arginine (743 words)

	Arginine (Site not responding. Last check: 2007-10-21)
		ARGININE is an essential amino acid for children during their growth period, but, since it can be manufactured by the body later in life, it is classified as a non-essential amino acid for adults.
		Arginine is important in the transport, storage, and excretion of nitrogen and in regulating protein metabolism throughout the body.
		Arginine's primary metabolic role in the urea cycle is in metabolizing nitrogen and protein.
	www.innvista.com /health/nutrition/amino/arginine.htm (709 words)

	Arginine (L-Arginine)
		Arginine is considered a semi-essential amino acid, because although it is normally synthesized in sufficient amounts by the body, supplementation is sometimes required (for example, due to inborn errors of urea synthesis, protein malnutrition, excess ammonia production, excessive lysine intake, burns, infection, peritoneal dialysis, rapid growth, or sepsis).
		Preliminary evidence suggests that arginine may be useful in the treatment of medical conditions that are improved by vasodilation, such as angina, atherosclerosis, coronary artery disease, erectile dysfunction, heart failure, intermittent claudication/peripheral vascular disease, and vascular headache.
		Arginine has been well tolerated by most people in studies lasting for up to six months, although there is a possibility of serious adverse effects in some individuals.
	allnutritionals.com /natural-products/arginine-l-arginine.shtml (3231 words)

	LifeLink - L-Arginine
		Arginine is a ‘semi-essential’ amino acid — which means that it is produced in the body in limited amounts, but that an external source is required during periods of maximal growth, severe stress, and injury.
		Arginine is the body’s sole source of nitric oxide, a substance which serves as a messenger in the blood and regulates vascular tone and blood dynamics.
		Compelling evidence shows that the administration of arginine reverses the damage to blood vessels and heart that is associated with major cardiovascular risk factors (high cholesterol, smoking, hypertension, diabetes, obesity, insulin resistance, and aging) and ameliorates many cardiovascular disorders, such as coronary and peripheral arterial disease, injuries caused by blood clots, and heart failure.
	www.lifelinknet.com /siteResources/Products/Arginine.asp (1264 words)

	Pure Encapsulations (Site not responding. Last check: 2007-10-21)
		Arginine plays a role in the synthesis of hormones such as insulin and growth hormone, and has demonstrated the potential to support glucose metabolism and growth hormone production respectively.
		Nitric oxide is also a mediator of neurotransmission in the brain, supporting memory under the circumstances of reduced intracellular arginine.
		Arginine is contra-indicated for individuals with the herpes virus.
	www.purecaps.com /itemdy00.asp?T1=LAR1 (334 words)

	Arginine Dosages and Creams, L Arginine Blood Pressure, L-Arginine Cream
		Arginine is an amino acid that retards the growth of tumors and cancer by enhancing immune function.
		Arginine regulates a blood compound called nitric oxide, which is responsible for regulating blood flow, immune function, communication among nerve cells, liver function, blood clotting, and even sexual arousal.
		Arginine supplements should be taken with antioxidant protection, including coenzyme Q10 and lipoic acid, which will neutralize the potential harm.
	www.wellfx.com /InfoBase/vitamin_arginine_.htm (741 words)

	Health Encyclopedia
		Small double-blind, placebo-controlled studies suggest that arginine might be helpful for the treatment of several seemingly unrelated conditions that are, in fact, all linked by arginine's effects on nitric oxide: congestive heart failure, intermittent claudication, angina, impotence, and sexual dysfunction in women.
		Arginine has been proposed for preventing altitude sickness, but the one reported study found harmful effects (increase in headache) rather than beneficial ones.
		In addition, a double blind trial found that arginine (30 g/day) may increase the risk of esophageal reflux (heartburn) by relaxing the sphincter at the bottom of the esophagus.
	healthlibrary.epnet.com /GetContent.aspx?token=e0498803-7f62-4563-8d47-5fe33da65dd4&chunkiid=21509 (3245 words)

	Health Library -
		The amino acid arginine has several roles in the body, such as assisting in wound healing, helping remove excess ammonia from the body, stimulating immune function, and promoting secretion of several hormones, including glucagon, insulin, and growth hormone.
		In another study, however, 5 grams of arginine powder, taken orally 30 minutes prior to exercise, failed to affect growth hormone release and may have even impaired the release of growth hormone in younger adults.
		In 1999, a double-blind study using 1.5 grams of arginine for three months in a group of women with interstitial cystitis, reported considerable improvement compared with the effect of a placebo in a variety of indices.
	healthinfo.cedars-sinai.edu /library/healthguide/en-us/Cam/topic.asp?hwid=hn-2803000 (1203 words)

	The Life Extension Manual
		The effectiveness of arginine in releasing growth hormone is greatly diminished if foods have been consumed that cause other amino acids or significant amounts of insulin to be present in the bloodstream along with the arginine.
		The remarkable wound healing enhancement of arginine appears to be due to its growth hormone releasing properties as well as its role as the body's sole source of nitric oxide.
		In spite of the considerable body of evidence showing arginine's usefulness in wound healing, it is almost never routinely used for this purpose, and few physicians are familiar with it.
	www.futurescience.com /arginine.html (1549 words)

	Arginine Report
		Arginine aids in liver detoxification by neutralizing ammonia, and may benefit in the treatment of liver disorders such as liver injury, hepatic cirrhosis, and fatty liver degeneration.
		Arginine is essential for optimum growth and in the regulation of protein metabolism.
		Arginine supplementation is not advised for pregnant women or nursing mothers [2], nor should supplemental amino acids be administered to a child.
	www.primev.com /Arginine.htm (2091 words)

	ARGININE
		Two of the building blocks of protein, arginine and ornithine are reported to be able to stimulate the release of human grow hormone (HGH).
		Studies suggest that sexual maturity may be delayed by arginine deficiency; implying that arginine is useful in treating sterility in men.
		Arginine is a component of collagen and aids in building new bone and tendon cells; scar tissues which form during wound healing is made up of collagen, which is rich in arginine.
	www.internalhealth.com /arginine_ornithine.htm (453 words)

	Arginine for Potency, Heart, and Healing
		Arginine may also preserve the elasticity of blood vessels through antioxidant actions.
		Arginine increases the number of immune T cells and enhances their function.
		Current studies support the use of arginine supplements to ensure that nitric oxide secretion is sufficient to keep blood flowing to the penis.
	www.bodyandfitness.com /Information/Menhealth/arginine1.htm (725 words)

	Amino Acids - Arginine R (Arg)
		Arginine is well designed to bind the phosphate anion, and is often found in the active centers of proteins that bind phosphorylated substrates.
		As a cation, arginine, as well as lysine, plays a role in maintaining the overall charge balance of a protein.
		There are 6 codons in the genetic code for arginine, yet, although this large a number of codons is normally associated with a high frequency of the particular amino acid in proteins, arginine is one of the least frequent amino acids.
	www.biology.arizona.edu /biochemistry/problem_sets/aa/Arginine.html (178 words)

	L-Arginine - Arginine supplements on Discount - L-Arginine Powder
		Arginine supports protein synthesis as it is involved in the transport and storage of nitrogen.
		Arginine is important for proper physical performance because it is used by the body to produce creatine.
		Arginine is necessary for the execution of many physiological processes.
	www.nutrovita.com /store.asp?filename=arginine (217 words)

	Arginine (Site not responding. Last check: 2007-10-21)
		Arginine deficiency syndrome is observed in human babies born with a phosphate synthetase deficiency.
		Free and bound arginine are found in abundance in human male sperm and arginine has been found to stimulate sperm motility.
		While food-source arginine is necessary for growth in children, free-form L-arginine is not recommended for anyone under the age of 23.
	optimalhealth.cia.com.au /arginine.html (655 words)

	Arginine definition - Medical Dictionary definitions of popular medical terms
		Arginine: An amino acid, one of the 20 amino acids that serve as the building blocks in protein.
		Lack of arginine in the diet impairs growth and in adult males it decreases the sperm count.
		Arginine is available in foods such as turkey, chicken and other meats and as L-arginine in supplements.
	www.medterms.com /script/main/art.asp?articlekey=7006 (252 words)

	Arginine (Site not responding. Last check: 2007-10-21)
		The amino acid arginine has several roles in the body, such as assisting in wound healing, helping remove excess ammonia from the body, stimulating immune function, and promoting secretion of several hormones, including glucagon,
		In a controlled trial, when arginine and ornithine (500 mg of each, twice per day, five times per week) were combined with weight training, a greater decrease in body fat was obtained after only five weeks than when the same exercise was combined with a placebo.
		Arginine works with ornithine in the synthesis of growth hormone.
	www.calabell.com /hn/Supp/Arginine.htm (1112 words)

	Arginine
		Arginine, an amino acid (one of the building blocks of protein), is what the cells use to make nitric oxide.
		It used to be marketed with claims that it could reduce the risk of cardiovascular disease and even eliminate the need for surgery and medication among patients with heart disease.
		In theory, all this is promising, but arginine’s benefits are uncertain and its long-term safety unknown.
	www.berkeleywellness.com /html/ds/dsArginine.php (1044 words)

	L-Arginine
		Intravenous arginine hydrochloride may be used as a fourth-line agent in the treatment of severe metabolic alkalosis.
		The "arginine paradox" may be explained in part by increasing levels of L-arginine overcoming the inhibition of NOS by ADMA.
		Other explanations of the "arginine paradox" include the presence of other inhibitors of NOS yet to be discovered, impaired transport of L-arginine into or within endothelial cells and impaired regeneration of L-arginine from L-citrulline.
	www.pdrhealth.com /drug_info/nmdrugprofiles/nutsupdrugs/lar_0024.shtml (3723 words)

	L-Arginine (Site not responding. Last check: 2007-10-21)
		Arginine lowered plasma cholesterol levels in patients with advanced hypertension.
		Arginine infusion has the same effect in cardiovascular patients as cholesterol-lowering drugs.
		Dr. Ann de Wees Allen is an L-Arginine specialist with twenty years of experience in the field of arginine research.
	www.arginineresearch.com /L-Arginine.htm (3133 words)

	MedlinePlus Herbs and Supplements: Arginine (L-Arginine)
		A small study suggests that arginine taken by mouth may dilate the arteries and temporarily reduce blood pressure in hypertensive patients with type 2 diabetes.
		Arginine should be used carefully with drugs such as nitroglycerin or sildenafil (Viagra®) because blood pressure may fall too low.
		In theory, arginine may increase the risk of bleeding when taken with herbs and supplements that are believed to increase the risk of bleeding.
	www.nlm.nih.gov /medlineplus/druginfo/natural/patient-arginine.html (4279 words)

	L Arginine (Site not responding. Last check: 2007-10-21)
		The arginine molecule is referred to as a blind amino acid and must be attached to a rider or another type of molecule that will direct it to the place in the body where it will have an impact.
		After many studies and a lot of research it was determined that an arginine molecule attached to a kiwi glycoside, from the kiwi plant, will create the formulation that allows the arginine to cross the blood brain barrier and produce it’s remarkable anti-aging results.
		Arginine prevents the increase in blood pressure in cases of high-risk hypertension.
	synergy4life.com /l_arginine.html (4936 words)

	FUBAO HEALTH STORE--ARGININE
		Together with ornithine, phenylalanine, and other neuro chemicals, arginine is required for the synthesis and release of the pituitary gland's growth hormone.
		The need for arginine is especially important for males, since seminal fluids contain much of this amino acid.
		Arginine is necessary for adults because after the age of thirty there is almost a complete cessation of its secretion from the pituitary gland.
	fubao.bigstep.com /arginine.htm (200 words)

	L-Arginine (Site not responding. Last check: 2007-10-21)
		Arginine is an amino acid, there are numerous amino acids, but there are twenty that are nutritionally important.
		Although Arginine is a non-essential amino acid, it plays a role in several important mechanisms in the body, including wound healing, removal of ammonia from the body, supports immune function, cell division and secretion of important hormones, such as insulin and glucagons.
		Our formula uses the L form of Arginine because it is closer to that which is manufactured by the body.
	www.nbnutrition.com /Products/HerbsOtherSuppliments/LArginine (439 words)

	Bodybuilding.com - L-Arginine Information and Product Listing! L-Arginine FAQ!
		Arginine is found in high concentrations in nuts and seeds like peanuts and almonds.
		Arginine is also believed to be crucial for muscle growth due to its vasodilating abilities, as well as its ability to participate in protein synthesis.
		Due to Arginines ability to increase growth hormone levels, its ability to encourage lipid oxidization, its ability to lower blood pressure, and its ability to decrease arterial plaque, supplemental arginine may prove beneficial for obese persons.
	www.bodybuilding.com /store/arginine.html (870 words)

	Arginine - Vitacost (Site not responding. Last check: 2007-10-21)
		Arginine is also a precursor to nitric oxide, which the body uses to keep blood vessels dilated, allowing the heart to receive adequate oxygen.
		Some doctors believe that people with herpes (either cold sores or genital herpes) should not take arginine supplements, because of the possibility that arginine might stimulate replication of the virus.
		On the other hand, in people with cancer, arginine has been found to stimulate the immune system.
	www.vitacost.com /science/hn/Supp/Arginine.htm (1484 words)

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