We’ve known about the health benefits of nitric oxide for a long time, even before scientists were aware of its presence in the human body. Nitroglycerin, a drug that works on nitric oxide pathways, was adopted as a medical therapy for angina and high blood pressure in the 1880s, yet another century passed before we really understood how and why it worked.
The discovery of nitric oxide and its biological activities was so astounding that the 1998 Nobel Prize was awarded to the three pharmacologists who identified and furthered our understanding of this dynamic molecule and turned our understanding of the cause of cardiovascular disease upside down. Nitric Oxide performs a number of different tasks and has numerous benefits and I also want to explain how you can increase its production to improve numerous aspects of your own health.
Nitric Oxide’s Effects and Benefits
Nitric oxide is a key signalling molecule throughout the human body, without it we would die. It is produced by the endothelial cells lining the arteries, it penetrates the underlying smooth muscles and acts as a potent vasodilator that relaxes the arteries. Therefore, nitric oxide plays a critical role in blood pressure and overall circulation. It also keeps the endothelium in shape by curbing inflammation and oxidative stress.
Unfortunately, atherosclerosis, the underlying cause of heart disease and other vascular disorders, is characterised by endothelial dysfunction and a limited capacity to produce nitric oxide. It’s a vicious cycle. Diseased arteries can’t generate enough protective nitric oxide, and low nitric oxide levels set the stage for further damage, hypertension, and increased risk of cardiac events.
This explains why nitroglycerin is such an effective therapy for angina. It triggers nitric oxide production, which dilates narrowed coronary arteries, improving circulation and delivering much-needed oxygen to the heart muscle. Restoring nitric oxide availability also lowers blood pressure and helps treat erectile dysfunction. In fact, the popular erectile dysfunction drugs Viagra, Cialis, and Levitra work on nitric oxide pathways to increase blood flow to the penis and substantially improve erections.
Additionally, this essential compound is generated in the brain, where it’s involved in neurotransmission. That’s why nitric oxide benefits also include protection against dementia and other neurodegenerative disorders. Nitric oxide is synthesised in the white blood cells as well and is used as a weapon against bacteria, fungi, parasites, and aberrant cancer cells.
In the gastrointestinal tract, it relaxes smooth muscle cells and helps regulate intestinal peristalsis and the secretion of mucus and gastric acid. Nitric oxide is also involved in insulin signalling, bone remodelling, respiratory function, ATP (energy) utilisation, and mitochondrial biogenesis, or the creation of new cellular “energy factories.” Since there are so many benefits of nitric oxide, it makes sense for all of us to boost our production of this essential compound.
Original source: http://www.drwhitaker.com/boost-nitric-oxide-levels-to-improve-health/
The nitric oxide derived from L-Arginine is both directly and indirectly implicated in practically every cellular response and health condition imaginable, from the cardiovascular system to the immune system, and hormone function to nerve function. Although this is not an exhaustive list of possible applications for this amino acid, the following are the primary scientifically backed reasons that anyone, even healthy people, must consider adding L-Arginine to their health and wellness routine.
From a personal perspective, I have been taking ProArgi9 Plus for almost three years now and began taking it as I had recently been diagnosed with a minor heart condition. Now almost three years on I hardly notice it at all, whereas previously it was very evident at numerous points through the day as my heart randomly tried to escape through my chest and caused shortness of breath and dizziness.
Also my father, who is now 70, has had heart trouble and been prescribed Warfarin etc and Statins. After about 12 months consistently taking ProArgi9 Plus he no longer requires Warfarin and has stopped taking the Statins. In combination with smaller food portions, healthier food, regular exercise of 20-30 minutes max, 5 times per week he is in better shape than he has been in quite a few years.
I am optimistic that the GMC will some day recognise the validity and efficacy of ProArgi9 Plus as has the AMA, because in the USA ProArgi9 Plus is the only non-pharmaceutical health supplement to be included in the Physicians Desk Reference (PDR) and GP’s there can prescribe it to their patients
- ProArgi9 Plus is one thousand times more powerful than any naturally occurring antioxidant in the body. L-Arginine`s antioxidant properties support various body systems and may protect against heart disease, stroke, cancer, and diabetes, as well as slowing premature ageing. [1, 2 ]
- ProArgi9 Plus offers wide-ranging cardiovascular support, including controlling blood pressure [3, 4] and plaque formation. Nitric oxide keeps arteries relaxed and pliable for normal blood pressure, preventing hypertension and angina. 
- ProArgi9 Plus enhances memory,  particularly long-term memory, and may help to reverse the effects of dementia and Alzheimer’s disease. 
- ProArgi9 Plus boosts human growth hormone (HGH) production, which has anti-ageing properties. 
- ProArgi9 Plus enhances communication of messenger cells between nerves and the brain. 
- ProArgi9 Plus may help improve immune function  and fight bacterial infections. 
- ProArgi9 Plus may help in the treatment and prevention of diabetes since many disease complications, including poor circulation and blindness, are vascular in nature. L-Arginine is also found to regulate insulin secretion in the pancreas. [12,13]
- ProArgi9 Plus may inhibit the division and proliferation of cancer cells. [14,15]
- ProArgi9 Plus helps with cholesterol control by lowering serum and LDL cholesterol levels. 
- ProArgi9 Plus enhances male sexual performance by treating vascular erectile dysfunction (ED). 
- ProArgi9 Plus anticoagulant abilities reduce clotting to lower heart attack and stroke risk. 
- ProArgi9 Plus reduces pregnancy-related hypertension, a risk factor for both the expecting mother and the unborn child. 
- ProArgi9 Plus is useful in the treatment of asthma by opening pulmonary pathways for easier breathing and the treatment of lung disorders. [20, 21]
- ProArgi9 Plus relaxes hypertonic sphincter muscles, preventing and healing haemorrhoids. 
- ProArgi9 Plus boosts lean muscle mass and preserves bone density by encouraging HGH production,  which also leads to a reduction in fatty tissue. Because of these properties, it may be useful in weight management and strength training.
- ProArgi9 Plus can help offset cardiovascular and lung damage caused by tobacco use, since nitric oxide levels in smokers are less than half of those found in nonsmokers. 
- ProArgi9 Plus helps to accelerate wound healing  and post-surgery recovery.  Research has shown it is useful in treating burn wounds  and stimulates wound healing in the elderly. 
- ProArgi9 Plus may be useful in enhancing athletic performance due to its ability to boost exercise tolerance,  its beneficial effect on the lungs, and its effect on HGH levels. Which helps with building lean muscle tissue.
- ProArgi9 Plus may be used to improve the function of the prostate. 
- ProArgi9 Plus may prevent and possibly reverse the effects of osteoporosis by positively affecting bone mass. 
- ProArgi9 Plus has been used in the treatment of irritable bowel syndrome [33} and to reduce the occurrence of ulcers, particularly stress-related, without affecting gastric acid production. [34,35]
- ProArgi9 Plus may improve renal function and slow the progression of renal disease and age-related chronic renal failure. [36,37] Arginine`s protective effect on the kidneys may also benefit those with diabetes.
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- Kumar CA, Das UN. Lipid peroxides, antioxidants and nitric oxide in patients with pre-eclampsia and essential hypertension. Med Sci-Monitor. 2000 Sep-Oct; 6(5):901-7.
- Brown, M.D., Dengel, D.R., Supiano, M.A. Nitric Oxide Biomarkers are Associated with the Blood Pressure-Lowering Effects of Dietary Sodium Restriction in Older Hypertensives. Circulation (Abstract I). 1997; 96:I-539.
- Rosano, G.M.C., Tanina, G., Cerquetani, E., Leonardo, F., Pelliccia, F., Bonfigli, B., and Chierchia, F.L. L-arginine Improves Endothelial Function in Newly Diagnosed Hypertensives. The Journal of the American College of Cardiology (Supplement A). 1998; 31:262a
- Moncada, F., Palmer, R.M.J., Higgs, E.A. The Discovery of Nitric Oxide as the Endogenous Nitro vasodilator. Hypertension. 1988; 12:365-72.
- Pautler EL. The possible role and treatment of deficient microcirculation regulation in age-associated memory impairment. Med Hypotheses. 1994 Jun; 42(6):363-6.
- Tarkowski E, et al. Intrathecal release of nitric oxide in Alzheimer’s disease and vascular dementia. Dement Geriatric Cogn Disord. 2000 Nov-Dec; 11(6):322-6.
- Ghigo E, Arvat E, Gianotti L, et al. Hypothalamic growth hormone-insulin-like growth facto-1 axis across the human life span. J Pediatr Endocrinol Metab.2000; 13 Suppl 6:1493-502.
- Fried R, Merrell WC. The Arginine Solution. New York, NY. Warner Books, 1999.
- Efron D, Barbul A. Role of arginine in immuno-nutrition. J Gastroentol. 2000; 35 Suppl 12:20-3..
- Korting GE, Smith SD, Wheeler MA, Weiss RM, Foster HE. A randomized double-blind study of oral L-arginine for treatment of interstitial cystitis. J Urol. 1999 Feb; 161(2):558-65.
- Piatti PM, Monti LD, Valsecchi G, et al. Long term oral L-arginine administration improves peripheral and hepatic insulin sensitivity in type 2 diabetes. Diabetes Care. 2001 May; 24(5):875-80.
- Mohan IK, Cas UN. Effects of L-arginine-nitric oxide system on chemical induced diabetes mellitus. Free Radic Biol Med. 1998 Nov 1; 25(7):757-65.
- Heys SD, et al. Dietary supplementation with L-arginine: Modulation of tumour infiltrating lymphocytes in patients with colorectal cancer. Br J Surg. 1997 Feb; 84(2):238-41.
- Brittenden J, et al. Dietary supplementation with L-arginine in patients with breast cancer (> 4cm.) receiving multi-modality treatment: report of a feasibility study. Br J Cancer. 1994 May; 69(5):918-21.
- Khedara A, Kawai Y Kayashita J Kato N. Feeding rats the nitric oxide synthase inhibitor, L-N(omega) nitroarginine, elevates serum triglycerides and cholesterol and lowers hepatic fatty acid oxidation. J Nutr. 1996 Oct; 126(10):2563-7.
- Chen J, Wollman Y, Chernichovsky T, et al. Effect of high dose nitric oxide donor L-arginine in men with organic erectile dysfunction. BJU Int. 1999 Feb; 83(3):269-73.
- Wolf A, et al. Dietary L-arginine supplementation normalises platelet aggregation in hypercholesterolemic humans. J Am Coll Cardiol. 1997 Mar 1; 29(3):479.
- Podjarny, E., et al. Pregnancy-induced hypertension in rats with adriamycin nephropathy is associated with inadequate production of nitric oxide. Hypertension. 1997; 29:986-991.
- De Gouw HW, Verbruggen MB, Twiss IM, Sterk PJ. Effect of oral L-arginine on airway hyper-responsiveness to histamine in asthma. Thorax. 1999 Nov; 54(11):1033-5.
- De Gouw HW, Marshall-Partridge SJ, et al. Role of nitric oxide in the airway response to exercise in healthy and asthmatic subjects. J Appl Physiol. 2001 Feb; 90(2):586-92.
- Fried R, Merrell WC. The Arginine Solution. New York, New York. Warner Books, 1999. pp 4-5.
- Stevens BR, Godfrey MD, Kaminski TW, Braith RW. High intensity dynamic human muscle performance enhanced by a metabolic intervention. Med Sci Sports Exerc. 2000 Dec; 32(12):2102-8.
- Heitzer, T., Just, H., and Munzell, T. Antioxidant Vitamin C Improves Endothelium Function in Chronic Smokers. Circulation. 1996; 94:9.
- Zeiher, A.M., Schachinger, V., and Minners, J. Long-Term Cigarette Smoking Impairs Endothelium-Dependent Coronary Arterial Vasodilator Function. Circulation. 1995; 92:1094-1100.
- Barbul A, et al. Arginine enhances wound healing and lymphocyte immune responses in humans. Surgery. 1990 Aug; 108(2):331-6; discussion 336-7.
- Braga M, Gianotti L Raedelli G, et al. Perioperative immuno-nutrition in patients undergoing cancer surgery: results of a randomised double-blind phase 3 trial. Arch Surg. 1999 Apr; 134(4):428-33.
- De-Souza DA, Greene LJ. Pharmacological nutrition after burn injury. J of Nutri. 1998 May; 128(5):797-803.
- Kirk SJ, et al Arginine stimulates wound healing and immune function in elderly humans. Surgery. 1993 Aug; 114(2):155-9; discussion 160.
- Bednarz B, Wolk R, Chamiec T, et al. Effects of oral L-arginine supplementation on exercised induced QT dispersion and exercise tolerance in stable anginapectoris. Int J Cardiol. 2000 Sep 15; 75(2-3): 205-10.
- Aikawa K, Yokota T, et al. Endogenous nitric oxide-mediated relaxation and nitrinergic innervation in the rabbit prostate: the change with aging. Prostate. 2001 Jun 15; 48(1):40-6.
- Fini M, et al. Effect of l-lysine and L-arginine on primary osteoblast cultures from normal and osteopenic rats. Biomed Pharmacother. 2001 May; 55(4):213-21.
- Sahin AS, Atalik KE, Gunel E, Dogan N. Nonadrenergic, noncholinergic responses of the human colon smooth muscle and the role of K+channels in these responses. Methods Find Exp Clin Pharmacol. 2001 Jan-Feb; 23(1):13-7.
- Ohta Y, Nishida K., Protective effect of l-arginine against stress-induced gastric mucosal lesions in rats and its relation to nitric acid-mediated inhibition of neutrophil infiltration. Pharmacal Res. 2001 Jun; 43(6):535-41.
- Khattab MM, Gad MZ, Abdallah D. Protective role of nitric oxide in indo- methacin- induced gastric ulceration by a mechanism independent of gastric acid secretion. Pharmacol Res. 2001 May; 43(5):463-7.
- De Nicola L, Bellizzi V, Minutolo R, et al. Randomized, double-blind, placebo controlled study of arginine supplementation in chronic renal failure. Kidney Int. 1999 Aug; 56(2):674-84.
- Reckelhoff JF, et al. Long-term dietary supplementation with L-arginine prevents age related reduction in renal function. Am J Physiol. 1997 Jun; 272(6 Pt 2):1768-74.