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Measurement of in vivo nitric oxide synthesis in humans using stable isotopic methods : a systematic review
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Siervo, M., Stephan, B. C. M., Feelisch, Martin and Bluck, L. J. C. (2011) Measurement of in vivo nitric oxide synthesis in humans using stable isotopic methods : a systematic review. Free Radical Biology and Medicine, Vol.51 (No.4). pp. 795-804. doi:10.1016/j.freeradbiomed.2011.05.032
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Official URL: http://dx.doi.org/10.1016/j.freeradbiomed.2011.05....
Abstract
Stable isotopic methods are considered the "gold standard" for the measurement of rates of in vivo NO production. However, values reported for healthy human individuals differ by more than 1 order of magnitude. The reason for the apparent variability in NO production is unclear. The primary aim of this review was to evaluate and compare the rates of in vivo NO production in health and disease using stable isotope methods. Articles were retrieved using the PubMed electronic database. Information on concentrations, isotopic enrichments of fluxes, and conversion rates of molecules involved in the NO metabolic pathway was extracted from selected articles; 35 articles were included in the final analysis. Three protocols were identified, including the arginine-citrulline, the arginine-nitrate, and the oxygen-nitrate protocols. The arginine-citrulline protocol showed a wider variability compared to the arginine-nitrate and oxygen-nitrate protocols. The direction of the association between disease state and rate of NO production was essentially determined by the etiopathogenesis of the disorder (inflammatory, metabolic, vascular). Considerable variation in methodologies used to assess whole-body NO synthesis in humans exists. The precision of several aspects of the techniques and the validity of some assumptions made remain unknown, and there is a paucity of information about physiological rates of NO production from childhood over adolescence to old age.
| Item Type: | Journal Article | ||||
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| Subjects: | Q Science > QP Physiology R Medicine > R Medicine (General) |
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| Divisions: | Faculty of Medicine > Warwick Medical School > Biomedical Sciences > Translational & Experimental Medicine > Metabolic and Vascular Health (- until July 2016) Faculty of Medicine > Warwick Medical School |
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| Library of Congress Subject Headings (LCSH): | Nitric oxide -- Synthesis, Stable isotope tracers, Systematic reviews (Medical research), Free radicals (Chemistry) | ||||
| Journal or Publication Title: | Free Radical Biology and Medicine | ||||
| Publisher: | Elsevier Science Inc. | ||||
| ISSN: | 0891-5849 | ||||
| Official Date: | August 2011 | ||||
| Dates: |
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| Volume: | Vol.51 | ||||
| Number: | No.4 | ||||
| Page Range: | pp. 795-804 | ||||
| DOI: | 10.1016/j.freeradbiomed.2011.05.032 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
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