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Kalocayova B, Snurikova D, Vlkovicova J, Navarova-Stara V, Michalikova D, Ujhazy E, Gasparova Z, Vrbjar N. Effect of handling on ATP utilization of cerebral Na,K-ATPase in rats with trimethyltin-induced neurodegeneration. Mol Cell Biochem 2021; 476:4323-4330. [PMID: 34427815 DOI: 10.1007/s11010-021-04239-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/29/2021] [Indexed: 10/20/2022]
Abstract
Previously it was shown that for reduction of anxiety and stress of experimental animals, preventive handling seems to be one of the most effective methods. The present study was oriented on Na,K-ATPase, a key enzyme for maintaining proper concentrations of intracellular sodium and potassium ions. Malfunction of this enzyme has an essential role in the development of neurodegenerative diseases. It is known that this enzyme requires approximately 50% of the energy available to the brain. Therefore in the present study utilization of the energy source ATP by Na,K-ATPase in the frontal cerebral cortex, using the method of enzyme kinetics was investigated. As a model of neurodegeneration treatment with trimethyltin (TMT) was applied. Daily handling (10 min/day) of healthy rats and rats suffering neurodegeneration induced by administration of TMT in a dose of (7.5 mg/kg), at postnatal days 60-102 altered the expression of catalytic subunits of Na,K-ATPase as well as kinetic properties of this enzyme in the frontal cerebral cortex of adult male Wistar rats. In addition to the previously published beneficial effect on spatial memory, daily treatment of rats was accompanied by improved maintenance of sodium homeostasis in the frontal cortex. The key system responsible for this process, Na,K-ATPase, was able to utilize better the energy substrate ATP. In rats, manipulation of TMT-induced neurodegeneration promoted the expression of the α2 isoform of the enzyme, which is typical for glial cells. In healthy rats, manipulation was followed by increased expression of the α3 subunit, which is typical of neurons.
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Affiliation(s)
- Barbora Kalocayova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Denisa Snurikova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Jana Vlkovicova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Veronika Navarova-Stara
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Dominika Michalikova
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Eduard Ujhazy
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Zdenka Gasparova
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Norbert Vrbjar
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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Noschang C, Krolow R, Arcego DM, Marcolin M, Ferreira AG, da Cunha AA, Wyse ATS, Dalmaz C. Early-life stress affects behavioral and neurochemical parameters differently in male and female juvenile Wistar rats. Int J Dev Neurosci 2020; 80:547-557. [PMID: 32683715 DOI: 10.1002/jdn.10050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/14/2020] [Accepted: 07/10/2020] [Indexed: 12/15/2022] Open
Abstract
Neonatal handling is an early life stressor that leads to behavioral and neurochemical changes in adult rats in a sex-specific manner and possibly affects earlier stages of development. Here, we investigated the effects of neonatal handling (days 1-10 after birth) on juvenile rats focusing on biochemical parameters and olfactory memory after weaning. Male neonatal handled rats performed more crossings on the hole-board task, increased Na+ /K+ -ATPase activity in the olfactory bulb, and decreased acetylcholinesterase activity in the hippocampus versus non-handled males. Female neonatal handled animals increased the number of rearing and nose-pokes on the hole-board task, decreased glutathione peroxidase activity, and total thiol content in the hippocampus versus non-handled females. This study reinforces that early life stress affects behavioral and neurochemical parameters in a sex-specific manner even before the puberty onset.
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Affiliation(s)
- C Noschang
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - R Krolow
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - D M Arcego
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - M Marcolin
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - A G Ferreira
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - A A da Cunha
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - A T S Wyse
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - C Dalmaz
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Lazzaretti C, Kincheski GC, Pandolfo P, Krolow R, Toniazzo AP, Arcego DM, de Sá Couto-Pereira N, Zeidán-Chuliá F, de Oliveira BHN, Bertolini D, Breunig RL, Ferreira AK, Kolling J, Siebert C, Wyse AT, Souza TME, Dalmaz C. Neonatal handling impairs intradimensional shift and alters plasticity markers in the medial prefrontal cortex of adult rats. Physiol Behav 2018; 197:29-36. [PMID: 30266584 DOI: 10.1016/j.physbeh.2018.09.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 09/24/2018] [Accepted: 09/24/2018] [Indexed: 12/17/2022]
Abstract
Stress response can be modulated by neonatal/childhood events. Neonatal handling (NH) is an animal model in which the animals are subjected to brief separations from the dam during the first days of life, and it leads to lower emotionality and behavioral changes in adulthood. The aim of this study was to observe if early events, such as (NH), may program associative learning and behavioral flexibility in adult male rats and if these changes could be related to altered neurochemistry in the medial prefrontal cortex (mPFC). We evaluated proteins related to synaptic plasticity (brain-derived neurotrophic factor [BDNF] and synaptophysin [SYP]) as well as Na+/K+-ATPase activity. Additionally, we evaluated proteins related to the dopaminergic system (tyrosine hydroxylase [TH] and phosphorylated TH [pTH]), since this system appears to be affected in some neonatal interventions. Neonatally handled animals exhibited impairment in simple discrimination and intradimensional shift but not in reversal or compound discrimination; in addition, no alteration in switching from an egocentric spatial to a cued strategy was observed. These effects were accompanied by a decrease in SYP levels and Na+/K+-ATPase activity, suggesting reduced synaptic function. These results indicate that NH increases attention to irrelevant stimuli and/or impairs associative learning, and this is accompanied by neurochemical alterations in the (mPFC).
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Affiliation(s)
- Camilla Lazzaretti
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Centro Universitário Cenecista de Osório (UNICNEC), Osório, RS, Brazil.
| | | | - Pablo Pandolfo
- Universidade Federal Fluminense (UFF), Rio de Janeiro, RJ, Brazil
| | - Rachel Krolow
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ana Paula Toniazzo
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | | | - Natividade de Sá Couto-Pereira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fares Zeidán-Chuliá
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ben-Hur Neves de Oliveira
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Diego Bertolini
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Raquel Luísa Breunig
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Andréa Kurek Ferreira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Janaína Kolling
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Cassiana Siebert
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Angela Teresinha Wyse
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Tadeu Mello E Souza
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Carla Dalmaz
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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