Measurement of NO in biological samples

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31 Citations (Scopus)

Abstract

Although the physiological regulatory function of the gasotransmitter NO (a diatomic free radical) was discovered decades ago, NO is still in the frontline research in biomedicine. NO has been implicated in a variety of physiological and pathological processes; therefore, pharmacological modulation of NO levels in various tissues may have significant therapeutic value. NO is generated by NOS in most of cell types and by non-enzymatic reactions. Measurement of NO is technically difficult due to its rapid chemical reactions with a wide range of molecules, such as, for example, free radicals, metals, thiols, etc. Therefore, there are still several contradictory findings on the role of NO in different biological processes. In this review, we briefly discuss the major techniques suitable for measurement of NO (electron paramagnetic resonance, electrochemistry, fluorometry) and its derivatives in biological samples (nitrite/nitrate, NOS, cGMP, nitrosothiols) and discuss the advantages and disadvantages of each method. We conclude that to obtain a meaningful insight into the role of NO and NO modulator compounds in physiological or pathological processes, concomitant assessment of NO synthesis, NO content, as well as molecular targets and reaction products of NO is recommended.

Original languageEnglish
Pages (from-to)1620-1632
Number of pages13
JournalBritish Journal of Pharmacology
Volume172
Issue number6
DOIs
Publication statusPublished - 2015

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Physiological Phenomena
Pathologic Processes
Free Radicals
Gasotransmitters
Electrochemistry
Biological Phenomena
Fluorometry
Process Assessment (Health Care)
Electron Spin Resonance Spectroscopy
Nitrites
Sulfhydryl Compounds
Nitrates
Metals
Pharmacology
Research
Therapeutics

ASJC Scopus subject areas

  • Pharmacology

Cite this

Measurement of NO in biological samples. / Csonka, C.; Páli, T.; Bencsik, P.; Görbe, A.; Ferdinándy, P.; Csont, T.

In: British Journal of Pharmacology, Vol. 172, No. 6, 2015, p. 1620-1632.

Research output: Contribution to journalArticle

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