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Open Access 18-12-2023 | Research

On the Mechanisms of the Cardiotoxic Effect of Lead Oxide Nanoparticles

Authors: Ilzira A. Minigaliyeva, Svetlana V. Klinova, Marina P. Sutunkova, Yuliya V. Ryabova, Irene E. Valamina, Ivan G. Shelomentsev, Tatiana N. Shtin, Tatiana V. Bushueva, Yuri L. Protsenko, Alexander A. Balakin, Ruslan V. Lisin, Daniil A. Kuznetsov, Boris A. Katsnelson, Liubov V. Toropova

Published in: Cardiovascular Toxicology | Issue 1/2024

Abstract

Lead compounds are one of the most common pollutants of the workplace air and the environment. In the occupational setting, the sources of their emission, including in nanoscale form, are various technological processes associated with lead smelting and handling of non-ferrous metals and their alloys, the production of copper and batteries. Both lead poisoning and lead exposure without obvious signs of poisoning have a detrimental effect on the cardiovascular system. The purpose of this research was to investigate the mechanisms of the cardiotoxic effect of lead oxide nanoparticles (PbO NPs). The toxicological experiment involved male albino rats subchronically exposed to PbO NPs (49.6 ± 16.0 nm in size) instilled intraperitoneally in a suspension. We then assessed post-exposure hematological and biochemical parameters of blood and urine, histological and ultrastructural changes in cardiomyocytes, and non-invasively recorded electrocardiograms and blood pressure parameters in the rodents. Myocardial contractility was studied on isolated preparations of cardiac muscles. We established that PbO NPs induced oxidative stress and damage to the ultrastructure of cardiomyocytes, and decreased efficiency of the contractile function of the myocardium and blood pressure parameters. We also revealed such specific changes in the organism of the exposed rats as anemia, hypoxia, and hypocalcemia.

Graphical Abstract

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Title: On the Mechanisms of the Cardiotoxic Effect of Lead Oxide Nanoparticles
Authors: Ilzira A. Minigaliyeva
Svetlana V. Klinova
Marina P. Sutunkova
Yuliya V. Ryabova
Irene E. Valamina
Ivan G. Shelomentsev
Tatiana N. Shtin
Tatiana V. Bushueva
Yuri L. Protsenko
Alexander A. Balakin
Ruslan V. Lisin
Daniil A. Kuznetsov
Boris A. Katsnelson
Liubov V. Toropova
Publication date: 18-12-2023
Publisher: Springer US
Published in: Cardiovascular Toxicology / Issue 1/2024
Print ISSN: 1530-7905
Electronic ISSN: 1559-0259
DOI: https://doi.org/10.1007/s12012-023-09814-5

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Prof. Florian Limbourg

Prof. Anoop Chauhan

Developed by: Springer Medicine

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2024 ESC Congress

Springer Medicine

Abstract

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