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Vicente-Ferreira GS, Martins GS, Chaves NA, Silva DGH, Bonini-Domingos CR. Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation. BRAZ J BIOL 2021; 84:e249617. [PMID: 34730698 DOI: 10.1590/1519-6984.249617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 08/04/2021] [Indexed: 11/22/2022] Open
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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Affiliation(s)
- G S Vicente-Ferreira
- Universidade Estadual Paulista - UNESP, Instituto de Biologia, Letras e Ciências Exatas, Laboratório de Hemoglobinas e Genética das Doenças Hematológicas, Departamento de Biologia, São José do Rio Preto, SP, Brasil.,Fundação Parque Tecnológico Itaipu (PTI), Foz do Iguaçu, PR, Brasil
| | - G S Martins
- Universidade Estadual Paulista - UNESP, Instituto de Biologia, Letras e Ciências Exatas, Laboratório de Hemoglobinas e Genética das Doenças Hematológicas, Departamento de Biologia, São José do Rio Preto, SP, Brasil
| | - N A Chaves
- Universidade Estadual Paulista - UNESP, Instituto de Biologia, Letras e Ciências Exatas, Laboratório de Hemoglobinas e Genética das Doenças Hematológicas, Departamento de Biologia, São José do Rio Preto, SP, Brasil
| | - D G H Silva
- Universidade Estadual Paulista - UNESP, Instituto de Biologia, Letras e Ciências Exatas, Departamento de Química e Ciências Ambientais, São José do Rio Preto, SP, Brasil.,Universidade Federal de Mato Grosso do Sul - UFMS, Câmpus de Três Lagoas, Três Lagoas, MS, Brasil
| | - C R Bonini-Domingos
- Universidade Estadual Paulista - UNESP, Instituto de Biologia, Letras e Ciências Exatas, Laboratório de Hemoglobinas e Genética das Doenças Hematológicas, Departamento de Biologia, São José do Rio Preto, SP, Brasil
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Patnaik P, Sahoo DD. Variations in oxidative stress and antioxidant defense level during different phases of hibernation in common Asian toad, Duttaphrynus melanostictus. Biol Open 2021; 10:bio058567. [PMID: 34350459 PMCID: PMC8353263 DOI: 10.1242/bio.058567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 06/07/2021] [Indexed: 12/12/2022] Open
Abstract
To assess redox status during hibernation with metabolic depression, oxidative stress parameters and antioxidant defense were assessed during different phases of hibernation including active period, hibernation, arousal, and post-arousal period, in the liver and brain tissues of Duttaphrynus melanostictus. We hypothesized low levels of oxidative stress and antioxidant defense during the hibernation period in comparison to the summer active period, due to hypometabolism and their subsequent increase during the arousal period following an increase in body temperature and metabolism. Contrary to our hypothesis, increased oxidative stress with significantly higher lipid peroxidation, protein carbonylation, oxidized glutathione (GSSG): glutathione (GSH) ratio, and elevated antioxidants defense consisting of higher catalase activity and high ascorbic acid content to control oxidative stress were found during hibernation. However, GSH and uric acid levels were found low with super oxide dismutase (SOD) activities at a steady level during hibernation. Supporting our hypothesis, increased oxidative stress with high lipid peroxidation and GSSG:GSH ratio were found during arousal from hibernation owing to increased oxygen consumption and rewarming. Augmented catalase and SOD activities and nonenzymatic antioxidants (GSH, ascorbic acid, and uric acid) level were found to counteract oxidative stress during arousal periods as it was expected. A steady level of protein carbonylation, indicating no oxidative damage during arousal from hibernation due to elevated antioxidant defense, shows the significance of hibernation to overcome food and water scarcity and cold climatic condition. Decrease in antioxidants levels accompanying coming down of lipid peroxidation, protein carbonylation, and GSSG:GSH ratio to their lower levels during the post-arousal period showing normalcy in redox status as it was during active period indicates controllability of oxidative stress in hibernating toads.
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Affiliation(s)
- Prabhati Patnaik
- Assistant Scientific Officer, Regional Forensic Science Laboratory, Berhampur, Odisha 760007, India
| | - Deba Das Sahoo
- Post-Graduate Department of Zoology, S.C.S Autonomous College, Puri, Odisha 752001, India
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Lushchak VI, Bagnyukova TV. Temperature increase results in oxidative stress in goldfish tissues. 1. Indices of oxidative stress. Comp Biochem Physiol C Toxicol Pharmacol 2006; 143:30-5. [PMID: 16423562 DOI: 10.1016/j.cbpc.2005.11.017] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2005] [Revised: 11/21/2005] [Accepted: 11/23/2005] [Indexed: 11/24/2022]
Abstract
Levels of lipid peroxides (LOOH), thiobarbituric-acid reactive substances (TBARS), protein carbonyls and low- and high-molecular weight thiols were measured in brain, liver, kidney, and white muscle of goldfish, Carassius auratus L., over 1-12 h of high temperature (35 degrees C) exposure followed by 4 or 24 h of lower (21 degrees C) temperature recovery. LOOH and TBARS contents increased during heat shock exposure with a maximal rise of 20-fold for liver TBARS, but both mainly reversed at recovery. Protein carbonyl content was unaffected by heat shock but rose in brain, liver, and kidney during recovery. Low-molecular weight thiol concentrations unexpectedly increased up to approximately 4-fold in brain, kidney and muscle under heat shock and remained high during recovery. Protein thiol contents also rose in liver and muscle during high temperature exposure by 2- and 3-fold, respectively, and decreased to control values or below in all tissues at late recovery. Low- and high-molecular weight thiol levels inversely correlated in liver (R2=0.87) suggesting that the former was used to reduce the latter over the experiment. It is concluded that the redox balance in goldfish tissues is strictly maintained probably contributing to the high tolerance of this species to heat shock.
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Affiliation(s)
- Volodymyr I Lushchak
- Department of Biochemistry, Precarpathian National University named after Vassyl Stefanyk, 57 Shevchenko Str., 76025, Ivano-Frankivsk, Ukraine.
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Bagnyukova T, Storey K, Lushchak V. Induction of oxidative stress in Rana ridibunda during recovery from winter hibernation. J Therm Biol 2003. [DOI: 10.1016/s0306-4565(02)00031-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Das S, Patnaik B. Effect of age and partial water deprivation on lipid peroxidation in the brain of male garden lizard. Comp Biochem Physiol B Biochem Mol Biol 1996. [DOI: 10.1016/0305-0491(96)00049-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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