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Metabolites of nitric oxide in tissues, blood plasma, mononuclear and mesenchimal stem cells

https://doi.org/10.21626/vestnik/2016-2/17

Abstract

Nitric oxide radical (NO•) is an important mediator of both physiological and pathophysiological processes. The NO• radical is rapidly metabolized into the stable end-products - nitrite and nitrate. NOx (nitrate and nitrite) is a stable end product of nitric oxide (NO). In most body fluids, including plasma, most of nitrite is converted into nitrate; thus, determination of nitrite alone is meaningless. The most commonly used nitrite assay is based on the Griess diazotization reaction, which is specific for nitrite and does not detect nitrate. Therefore, nitrate in samples must first be reduced to nitrite; subsequent nitrite determination, thus, yields the total nitrite + nitrate concentration of the sample. NO3- plus NO2- (NOx) was measured as NO2- after enzymatic conversion of NO3- to NO2-. After the conversion, the spectrophotometric measurement of nitrite is accomplished by using the Griess Reaction. Clearly, the real value of determining NO• or its metabolites - nitrite and nitrate in clinical practice still need to be proved.

About the Authors

A. A. Chebotareva
Kursk State Medical University
Russian Federation


I. A. Komarevtseva
Lugansk State Medical University
Russian Federation


R. M. Usuf
Lugansk State Medical University
Russian Federation


Yu. A. Chernykh
Lugansk State Medical University
Russian Federation


I. A. Vishnitskaya
Lugansk State Medical University
Russian Federation


K. V. Komarevtseva
Lugansk State Medical University
Russian Federation


D. G. Posternak
Lugansk State Medical University
Russian Federation


N. M. Seregina
Lugansk State Medical University
Russian Federation


A. A. Zhurba
Lugansk State Medical University
Russian Federation


R. P. Moraru-Burlesku
Lugansk State Medical University
Russian Federation


R. V. Cherednichenko
Lugansk State Medical University
Russian Federation


S. V. Tertychnaya-Teliuk
Lugansk State Medical University
Russian Federation


T. P. Yakovleva
Lugansk State Medical University
Russian Federation


Yu. V. Kravtsova
Lugansk State Medical University
Russian Federation


K. A. Siminenko
Lugansk State Medical University
Russian Federation


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Review

For citations:


Chebotareva A.A., Komarevtseva I.A., Usuf R.M., Chernykh Yu.A., Vishnitskaya I.A., Komarevtseva K.V., Posternak D.G., Seregina N.M., Zhurba A.A., Moraru-Burlesku R.P., Cherednichenko R.V., Tertychnaya-Teliuk S.V., Yakovleva T.P., Kravtsova Yu.V., Siminenko K.A. Metabolites of nitric oxide in tissues, blood plasma, mononuclear and mesenchimal stem cells. Kursk Scientific and Practical Bulletin "Man and His Health". 2016;(2):90-95. (In Russ.) https://doi.org/10.21626/vestnik/2016-2/17

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ISSN 1998-5746 (Print)
ISSN 1998-5754 (Online)