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Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination
Subchronic intoxications induced in male rats by repeated intraperitoneal injections of lead acetate and cadmium chloride, administered either alone or in combination, are shown to affect the biochemical, cytological and morphometric parameters of blood, liver, heart and kidneys. The single twitch p...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7063142/ https://www.ncbi.nlm.nih.gov/pubmed/32181144 http://dx.doi.org/10.1016/j.toxrep.2020.03.001 |
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author | Protsenko, Yuri L. Klinova, Svetlana V. Gerzen, Oksana P. Privalova, Larisa I. Minigalieva, Ilzira A. Balakin, Alexander A. Lookin, Oleg N. Lisin, Ruslan V. Butova, Ksenya A. Nabiev, Salavat R. Katsnelson, Leonid B. Nikitina, Larisa V. Katsnelson, Boris A. |
author_facet | Protsenko, Yuri L. Klinova, Svetlana V. Gerzen, Oksana P. Privalova, Larisa I. Minigalieva, Ilzira A. Balakin, Alexander A. Lookin, Oleg N. Lisin, Ruslan V. Butova, Ksenya A. Nabiev, Salavat R. Katsnelson, Leonid B. Nikitina, Larisa V. Katsnelson, Boris A. |
author_sort | Protsenko, Yuri L. |
collection | PubMed |
description | Subchronic intoxications induced in male rats by repeated intraperitoneal injections of lead acetate and cadmium chloride, administered either alone or in combination, are shown to affect the biochemical, cytological and morphometric parameters of blood, liver, heart and kidneys. The single twitch parameters of myocardial trabecular and papillary muscle preparations were measured in the isometric regime to identify changes in the heterometric (length-force) and chronoinotropic (frequency-force) contractility regulation systems. Differences in the responses of these systems in trabecules and papillary muscles to the above intoxications are shown. A number of myocardium mechanical characteristics changing in rats under the effect of a combined lead-cadmium intoxication and increased proportion of α-myosin heavy chains were observed to normalize fully or partially if such intoxication was induced against background administration of a proposed bioprotective complex. Based on the experimental results and literature data, some assumptions are suggested concerning the mechanisms of the cardiotoxic effects produced by lead and cadmium. |
format | Online Article Text |
id | pubmed-7063142 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-70631422020-03-16 Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination Protsenko, Yuri L. Klinova, Svetlana V. Gerzen, Oksana P. Privalova, Larisa I. Minigalieva, Ilzira A. Balakin, Alexander A. Lookin, Oleg N. Lisin, Ruslan V. Butova, Ksenya A. Nabiev, Salavat R. Katsnelson, Leonid B. Nikitina, Larisa V. Katsnelson, Boris A. Toxicol Rep Regular Article Subchronic intoxications induced in male rats by repeated intraperitoneal injections of lead acetate and cadmium chloride, administered either alone or in combination, are shown to affect the biochemical, cytological and morphometric parameters of blood, liver, heart and kidneys. The single twitch parameters of myocardial trabecular and papillary muscle preparations were measured in the isometric regime to identify changes in the heterometric (length-force) and chronoinotropic (frequency-force) contractility regulation systems. Differences in the responses of these systems in trabecules and papillary muscles to the above intoxications are shown. A number of myocardium mechanical characteristics changing in rats under the effect of a combined lead-cadmium intoxication and increased proportion of α-myosin heavy chains were observed to normalize fully or partially if such intoxication was induced against background administration of a proposed bioprotective complex. Based on the experimental results and literature data, some assumptions are suggested concerning the mechanisms of the cardiotoxic effects produced by lead and cadmium. Elsevier 2020-03-02 /pmc/articles/PMC7063142/ /pubmed/32181144 http://dx.doi.org/10.1016/j.toxrep.2020.03.001 Text en © 2020 Published by Elsevier B.V. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Regular Article Protsenko, Yuri L. Klinova, Svetlana V. Gerzen, Oksana P. Privalova, Larisa I. Minigalieva, Ilzira A. Balakin, Alexander A. Lookin, Oleg N. Lisin, Ruslan V. Butova, Ksenya A. Nabiev, Salavat R. Katsnelson, Leonid B. Nikitina, Larisa V. Katsnelson, Boris A. Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
title | Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
title_full | Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
title_fullStr | Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
title_full_unstemmed | Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
title_short | Changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
title_sort | changes in rat myocardium contractility under subchronic intoxication with lead and cadmium salts administered alone or in combination |
topic | Regular Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7063142/ https://www.ncbi.nlm.nih.gov/pubmed/32181144 http://dx.doi.org/10.1016/j.toxrep.2020.03.001 |
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