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Possibility for Application of Extracellular Protease of Micromycete Aspergillus ochraceus for Determining Factor X Content in Human Blood Plasma

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Abstract

It has been shown that factor X activity determined in normal plasma using Aspergillus ochraceus protease is comparable with the activity determined with a commercial analogue, a protease from Russell’s viper venom (RVV-X®). It was revealed that the protease of A. ochraceus, along with the RVV-X® preparation, can be used to determine the content of factor X in the plasma with its reduced content. A study of the protease activity of A. ochraceus as an activator to factor X showed that it is slightly higher compared to the snake venom preparation, which can make A. ochraceus protease a promising substitute for the snake activator in diagnostics for determining the content of factor X.

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Funding

This work was supported by the Foundation for the Promotion of the Development of Small Enterprises in the Scientific and Technical Sphere (agreement no. 9107GU / 2015).

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Correspondence to A. A. Osmolovskiy.

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Conflict of interests. The authors declare that they have no conflict of interest.

Statement on the welfare of animals. The studies were performed without the use of animals.

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Translated by I. Shipounova

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Orekhova, A.V., Osmolovskiy, A.A., Kreyer, V.G. et al. Possibility for Application of Extracellular Protease of Micromycete Aspergillus ochraceus for Determining Factor X Content in Human Blood Plasma. Moscow Univ. Biol.Sci. Bull. 74, 117–120 (2019). https://doi.org/10.3103/S0096392519020081

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  • DOI: https://doi.org/10.3103/S0096392519020081

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