Funding for this research was provided by:
Russian Science Foundation (17-16-01109)
Text and Data Mining valid from 2019-01-11
Received: 6 December 2018
Accepted: 2 January 2019
First Online: 11 January 2019
Compliance with Ethical Standards
: The protocol of the present investigation was approved by the Institutional Ethics Committee (Orenburg State University, Orenburg, Russia). All procedures involving animals were performed in agreement with the ethical standards by the Declaration of Helsinki (1964) and its later amendments (2013).
: The authors declare that they have no conflict of interest.