Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100108 |
Resumo: | Abstract Hibernation is a natural condition of animals that lives in the temperate zone, although some tropical lizards also experience hibernation annually, such as the lizard native from South America, Salvator merianae, or “tegu” lizard. Even though physiological and metabolic characteristic associated with hibernation have been extensively studied, possible alterations in the red blood cells (RBC) integrity during this period remains unclear. Dehydration and fasting are natural consequences of hibernating for several months and it could be related to some cellular modifications. In this study, we investigated if the osmotic tolerance of RBCs of tegu lizard under hibernation is different from the cells obtained from animals while normal activity. Additionally, we indirectly investigated if the RBCs membrane of hibernating tegus could be associated with oxidation by quantifying oxidized biomolecules and the activity of antioxidant enzymes. Our findings suggest that RBCs are more fragile during the hibernation period, although we did not find evidence of an oxidative stress scenario associated with the accentuated fragility. Even though we did not exclude the possibility of oxidative damage during hibernation, we suggested that an increased RBCs volume as a consequence of hypoosmotic blood during hibernation could also affect RBCs integrity as noted. |
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Brazilian Journal of Biology |
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Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernationteguosmotic fragilityerythrocytesoxidative stressAbstract Hibernation is a natural condition of animals that lives in the temperate zone, although some tropical lizards also experience hibernation annually, such as the lizard native from South America, Salvator merianae, or “tegu” lizard. Even though physiological and metabolic characteristic associated with hibernation have been extensively studied, possible alterations in the red blood cells (RBC) integrity during this period remains unclear. Dehydration and fasting are natural consequences of hibernating for several months and it could be related to some cellular modifications. In this study, we investigated if the osmotic tolerance of RBCs of tegu lizard under hibernation is different from the cells obtained from animals while normal activity. Additionally, we indirectly investigated if the RBCs membrane of hibernating tegus could be associated with oxidation by quantifying oxidized biomolecules and the activity of antioxidant enzymes. Our findings suggest that RBCs are more fragile during the hibernation period, although we did not find evidence of an oxidative stress scenario associated with the accentuated fragility. Even though we did not exclude the possibility of oxidative damage during hibernation, we suggested that an increased RBCs volume as a consequence of hypoosmotic blood during hibernation could also affect RBCs integrity as noted.Instituto Internacional de Ecologia2024-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100108Brazilian Journal of Biology v.84 2024reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.249617info:eu-repo/semantics/openAccessVicente-Ferreira,G. S.Martins,G. S.Chaves,N. A.Silva,D. G. H.Bonini-Domingos,C. R.eng2021-10-27T00:00:00Zoai:scielo:S1519-69842024000100108Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2021-10-27T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
title |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
spellingShingle |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation Vicente-Ferreira,G. S. tegu osmotic fragility erythrocytes oxidative stress |
title_short |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
title_full |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
title_fullStr |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
title_full_unstemmed |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
title_sort |
Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation |
author |
Vicente-Ferreira,G. S. |
author_facet |
Vicente-Ferreira,G. S. Martins,G. S. Chaves,N. A. Silva,D. G. H. Bonini-Domingos,C. R. |
author_role |
author |
author2 |
Martins,G. S. Chaves,N. A. Silva,D. G. H. Bonini-Domingos,C. R. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Vicente-Ferreira,G. S. Martins,G. S. Chaves,N. A. Silva,D. G. H. Bonini-Domingos,C. R. |
dc.subject.por.fl_str_mv |
tegu osmotic fragility erythrocytes oxidative stress |
topic |
tegu osmotic fragility erythrocytes oxidative stress |
description |
Abstract Hibernation is a natural condition of animals that lives in the temperate zone, although some tropical lizards also experience hibernation annually, such as the lizard native from South America, Salvator merianae, or “tegu” lizard. Even though physiological and metabolic characteristic associated with hibernation have been extensively studied, possible alterations in the red blood cells (RBC) integrity during this period remains unclear. Dehydration and fasting are natural consequences of hibernating for several months and it could be related to some cellular modifications. In this study, we investigated if the osmotic tolerance of RBCs of tegu lizard under hibernation is different from the cells obtained from animals while normal activity. Additionally, we indirectly investigated if the RBCs membrane of hibernating tegus could be associated with oxidation by quantifying oxidized biomolecules and the activity of antioxidant enzymes. Our findings suggest that RBCs are more fragile during the hibernation period, although we did not find evidence of an oxidative stress scenario associated with the accentuated fragility. Even though we did not exclude the possibility of oxidative damage during hibernation, we suggested that an increased RBCs volume as a consequence of hypoosmotic blood during hibernation could also affect RBCs integrity as noted. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100108 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100108 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1519-6984.249617 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.84 2024 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129890679783424 |