Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats

Introduction. The prevalence of new coronavirus infection (COVID-19) in 2021-2022 in the pediatric population was 9.5%, and fatal outcomes began to be recorded. In 2022–2023, the proportion of children infected with COVID-19 increased to 18%. Developing a vaccine for the pediatric population is an u...

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Main Authors: Aleksandra A. Siniugina, Natalya A. Lycheva, Anastasia A. Saprykina, Kirill L. Kryshen’, Vasiliy D. Apolokhov, Anastasiya D. Chernavtseva, Anastasiya A. Kovpak, Yuriy Yu. Ivin, Anastasia N. Piniaeva, Marina N. Makarova, Valery G. Makarov, Aidar A. Ishmukhametov
Format: Article
Language:English
Published: Central Research Institute for Epidemiology 2025-04-01
Series:Вопросы вирусологии
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Online Access:https://virusjour.crie.ru/jour/article/viewFile/16728/971
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author Aleksandra A. Siniugina
Natalya A. Lycheva
Anastasia A. Saprykina
Kirill L. Kryshen’
Vasiliy D. Apolokhov
Anastasiya D. Chernavtseva
Anastasiya A. Kovpak
Yuriy Yu. Ivin
Anastasia N. Piniaeva
Marina N. Makarova
Valery G. Makarov
Aidar A. Ishmukhametov
author_facet Aleksandra A. Siniugina
Natalya A. Lycheva
Anastasia A. Saprykina
Kirill L. Kryshen’
Vasiliy D. Apolokhov
Anastasiya D. Chernavtseva
Anastasiya A. Kovpak
Yuriy Yu. Ivin
Anastasia N. Piniaeva
Marina N. Makarova
Valery G. Makarov
Aidar A. Ishmukhametov
author_sort Aleksandra A. Siniugina
collection DOAJ
description Introduction. The prevalence of new coronavirus infection (COVID-19) in 2021-2022 in the pediatric population was 9.5%, and fatal outcomes began to be recorded. In 2022–2023, the proportion of children infected with COVID-19 increased to 18%. Developing a vaccine for the pediatric population is an urgent task. The aim of the study is to explore the effect of the vaccine on the parameters of general and biochemical blood tests in immature rats. Materials and methods. The study was performed on 112 immature rats (60 females, 52 males) of the Wistar line. Animals were randomized into groups that received the CoviVac vaccine at doses of 0.125, 0.25 and 0.5 mL/animal or placebo (0.5 mL/animal), intramuscularly on days 1, 15, 29 and 43 of the experiment. General and biochemical blood tests were performed twice, on the 57th and 71st days. Results. Oligocythemia (0.25 and 0.5 mL/animal, p 0.05), leukocytosis and thrombocytopenia (0.5 mL/animal, p 0.05) were recorded in males. Monocytopenia (0.5 mL/animal, p 0.05) and leukopenia (0.25 mL/animal, p 0.05) were established in females. In males, an increase in the amount of globulins and total protein (0.5 mL/animal), a decrease in the A/G ratio (doses 0.25 and 0.5 mL/animal), a decrease in the cholesterol level (0.125 mL/animal) were detected. In females, an increase in the amount of albumin and total protein (0.5 mL/animal, p 0.05), a decrease in the level of triglycerides (0.125, 0.25, 0.5 mL/animal, placebo, p 0.05), a decrease in the level of lactate dehydrogenase, triglycerides and urea (0.25 mL/animal, p 0.05) were recorded. Conclusion. The safety of the CociVac vaccine in relation to clinical and biochemical blood parameters has been demonstrated.
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spelling doaj-art-810e8035b18d4692a75050e44da7cf532025-08-20T03:14:50ZengCentral Research Institute for EpidemiologyВопросы вирусологии0507-40882411-20972025-04-0170217718810.36233/0507-4088-3031273Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature ratsAleksandra A. Siniugina0https://orcid.org/0000-0002-7251-6570Natalya A. Lycheva1https://orcid.org/0000-0002-5842-5728Anastasia A. Saprykina2https://orcid.org/0000-0002-7588-3982Kirill L. Kryshen’3https://orcid.org/0000-0003-1451-7716Vasiliy D. Apolokhov4https://orcid.org/0000-0002-9978-222XAnastasiya D. Chernavtseva5https://orcid.org/0009-0009-6232-7512Anastasiya A. Kovpak6https://orcid.org/0000-0003-3200-763XYuriy Yu. Ivin7https://orcid.org/0000-0003-0995-7944Anastasia N. Piniaeva8https://orcid.org/0000-0001-5381-2393Marina N. Makarova9https://orcid.org/0000-0003-3176-6386Valery G. Makarov10https://orcid.org/0000-0002-2447-7888Aidar A. Ishmukhametov11https://orcid.org/0000-0001-6130-4145Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisResearch-and-manufacturing company «HOME OF PHARMACY» Joint Stock companyResearch-and-manufacturing company «HOME OF PHARMACY» Joint Stock companyChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisResearch-and-manufacturing company «HOME OF PHARMACY» Joint Stock companyResearch-and-manufacturing company «HOME OF PHARMACY» Joint Stock companyChumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences (Institute of Poliomyelitis), Village of Institute of PoliomyelitisIntroduction. The prevalence of new coronavirus infection (COVID-19) in 2021-2022 in the pediatric population was 9.5%, and fatal outcomes began to be recorded. In 2022–2023, the proportion of children infected with COVID-19 increased to 18%. Developing a vaccine for the pediatric population is an urgent task. The aim of the study is to explore the effect of the vaccine on the parameters of general and biochemical blood tests in immature rats. Materials and methods. The study was performed on 112 immature rats (60 females, 52 males) of the Wistar line. Animals were randomized into groups that received the CoviVac vaccine at doses of 0.125, 0.25 and 0.5 mL/animal or placebo (0.5 mL/animal), intramuscularly on days 1, 15, 29 and 43 of the experiment. General and biochemical blood tests were performed twice, on the 57th and 71st days. Results. Oligocythemia (0.25 and 0.5 mL/animal, p 0.05), leukocytosis and thrombocytopenia (0.5 mL/animal, p 0.05) were recorded in males. Monocytopenia (0.5 mL/animal, p 0.05) and leukopenia (0.25 mL/animal, p 0.05) were established in females. In males, an increase in the amount of globulins and total protein (0.5 mL/animal), a decrease in the A/G ratio (doses 0.25 and 0.5 mL/animal), a decrease in the cholesterol level (0.125 mL/animal) were detected. In females, an increase in the amount of albumin and total protein (0.5 mL/animal, p 0.05), a decrease in the level of triglycerides (0.125, 0.25, 0.5 mL/animal, placebo, p 0.05), a decrease in the level of lactate dehydrogenase, triglycerides and urea (0.25 mL/animal, p 0.05) were recorded. Conclusion. The safety of the CociVac vaccine in relation to clinical and biochemical blood parameters has been demonstrated.https://virusjour.crie.ru/jour/article/viewFile/16728/971covid-19new coronavirus infectionsafetyvaccinecocivacimmature rats
spellingShingle Aleksandra A. Siniugina
Natalya A. Lycheva
Anastasia A. Saprykina
Kirill L. Kryshen’
Vasiliy D. Apolokhov
Anastasiya D. Chernavtseva
Anastasiya A. Kovpak
Yuriy Yu. Ivin
Anastasia N. Piniaeva
Marina N. Makarova
Valery G. Makarov
Aidar A. Ishmukhametov
Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats
Вопросы вирусологии
covid-19
new coronavirus infection
safety
vaccine
cocivac
immature rats
title Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats
title_full Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats
title_fullStr Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats
title_full_unstemmed Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats
title_short Effect of inactivated whole-virion concentrated purified vaccine for the prevention of COVID-19 on clinical and biochemical blood parameters of immature rats
title_sort effect of inactivated whole virion concentrated purified vaccine for the prevention of covid 19 on clinical and biochemical blood parameters of immature rats
topic covid-19
new coronavirus infection
safety
vaccine
cocivac
immature rats
url https://virusjour.crie.ru/jour/article/viewFile/16728/971
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