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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2014; 60(6): 3-9

RESTORATION OF ERYTHROCYTES STABILITY TO ACID HEMOLYSIS BY СERIUM OXIDE NANOPARTICLES IN OLD RATS

A.V. Kotsuruba1, B.S. Kopjak1, V.F. Sagach1, A.V. Shcherbakov2, N.M. Zholobak2,3, N.JA. Spivak2,3

  1. Bogomoletz Institute of physiology NAS of Ukraine, Kyiv, Ukraine
  2. Institute of microbiology and virusology NAS of Ukraine, Kyiv, Ukraine
  3. LCL «Diaprof», Ukraine
DOI: https://doi.org/10.15407/fz60.06.003


Abstract

In experiments in vivo and in vitro we investigated the effect of cerium oxide nanoparticles on the stability of red blood cells of old rats. The analysis of the kinetic curves of acid hemolysis caused by the penetration of protons into the matrix of erythrocytes in experiments in vivo showed a significant reduction in the so-called stability index, the times of duration of complete hemolysis, the time of hemolysis maximum, the fate of labile “old” and, conversely, decreased the fate of “young” erythrocytes in old animals bluud compared with adults. Introduction to old rats per os for 14 days 0.1 mg / kg of cerium oxide nanoparticles fully restored resistance of erythrocytes to acid hemolysis. Cerium oxide nanoparticles decreased in circulation the fate of labile “old” erythrocytes and, conversely, significantly increased the fate of “young” stabile erythrocytes. Experiments in vitro showed no direct hemolytic action of cerium oxide nanoparticles at concentrations – 10-3 M - 10-12 M.

Keywords: erythrocytes, acid hemolysis, old rats, ceriumoxide nanoparticles.

Full text: (PDF, in Ukrainian)

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