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Nutrients 2016, 8(6), 364; doi:10.3390/nu8060364

Effects of Dietary l-Arginine on Nitric Oxide Bioavailability in Obese Normotensive and Obese Hypertensive Subjects

1
Baker IDI Heart and Diabetes Institute, VIC 3004 Melbourne, Australia
2
Central Clinical School, Monash University, VIC 3004 Melbourne, Australia
3
Department of Biochemistry and Molecular Biology, Monash University, VIC 3004 Melbourne, Australia
4
Department of Physiology, Monash University, VIC 3004 Melbourne, Australia
*
Author to whom correspondence should be addressed.
Received: 12 May 2016 / Revised: 2 June 2016 / Accepted: 7 June 2016 / Published: 14 June 2016
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Abstract

Obesity related hypertension is a major risk factor for resistant hypertension. We do not completely understand the mechanism(s) underlying the development of obesity related hypertension which hinders the development of novel treatment strategies for this condition. Data from experimental studies and small clinical trials indicate that transport of l-arginine, the substrate for nitric oxide (NO), and subsequent NO production are reduced in obesity induced hypertension. Reduced NO bioavailability can induce hypertension via multiple mechanisms. Mirmiran et al. recently analyzed data from a large population study and found that the association between dietary l-arginine and serum nitrate and nitrite was weakened in obese hypertensive subjects compared to obese normotensives. These data suggest that l-arginine dependent NO production is impaired in the former group compared to the latter which may represent a novel mechanism contributing to hypertension in the setting of obesity. View Full-Text
Keywords: l-arginine transport; nitric oxide; obesity related hypertension l-arginine transport; nitric oxide; obesity related hypertension
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Giam, B.; Kuruppu, S.; Head, G.A.; Kaye, D.M.; Rajapakse, N.W. Effects of Dietary l-Arginine on Nitric Oxide Bioavailability in Obese Normotensive and Obese Hypertensive Subjects. Nutrients 2016, 8, 364.

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