1
|
Mendelski GQ, Furini CRG, Stefani GP, Botton LP, Baptista RR. Enhancing long-term memory through strength training: An experimental study in adult and middle-aged rats. Behav Brain Res 2024; 456:114697. [PMID: 37793439 DOI: 10.1016/j.bbr.2023.114697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/09/2023] [Accepted: 09/30/2023] [Indexed: 10/06/2023]
Abstract
The study aimed to explore the impact of strength training on long-term memory in adult and middle-aged rodents, specifically male Wistar rats aged 9 and 20 months. These rats were divided into two groups: one sedentary (SED) and the other trained (ST) for a period of 12 weeks. The strength training involved squatting exercises using adapted equipment, while the sedentary group maintained their regular, non-exercised routine. Behavioral tasks assessing mobility, anxiety, and multiple facets of memory, such as object recognition memory (ORM), social recognition memory (SRM), and object location memory (OLM), were conducted post-training. The findings were promising, revealing a generally beneficial impact of strength training on memory tasks across both age groups. Specifically, the ORM tasks showed facilitated and improved learning in both adult and middle-aged rats that underwent training. In contrast, OLM displayed only a facilitatory effect in both age groups, meaning that while the trained rats learned the task, they did not outperform the sedentary group. For SRM, a facilitatory effect was observed only in the adult group. In addition to the cognitive benefits, strength training was found to have an anxiolytic effect in the 9-month-old rats and positively affected body mass and adipose tissue composition. Notably, the study correlated the strength gains from the training with improved performance in memory tasks. These outcomes provide crucial insights into the potential of exercise-based interventions to bolster cognitive health and mitigate age-related cognitive decline.
Collapse
Affiliation(s)
- Gabriela Quines Mendelski
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Brazil
| | - Cristiane Regina Guerino Furini
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Brazil; Laboratory of Cognition and Neurobiology of Memory, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Brazil; Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul, Brazil
| | | | | | - Rafael Reimann Baptista
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Brazil; Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul, Brazil; School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Brazil.
| |
Collapse
|
2
|
Oroszi T, de Boer SF, Nyakas C, Schoemaker RG, van der Zee EA. Chronic whole body vibration ameliorates hippocampal neuroinflammation, anxiety-like behavior, memory functions and motor performance in aged male rats dose dependently. Sci Rep 2022; 12:9020. [PMID: 35637277 PMCID: PMC9151803 DOI: 10.1038/s41598-022-13178-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/13/2022] [Indexed: 12/19/2022] Open
Abstract
AbstractWhole body vibration (WBV) is a form of passive exercise by the stimulation of mechanical vibration platform. WBV has been extensively investigated through clinical studies with main focus on the musculoskeletal system. However, pre-clinical data in the context of behavior, memory and motor functions with aged rodents are limited. The aim of this experiment was to investigate the dose dependent effects of a five weeks long WBV intervention with an aged animal model including anxiety-related behavior, memory and motor functions, as well as markers of (neuro)inflammation. Male Wistar rats (18 months) underwent 5 or 20 min daily vibration exposure or pseudo-treatment (i.e.: being subjected to the same environmental stimuli for 5 or 20 min, but without exposure to vibrations) 5 times per week. After 5 weeks treatment, cognitive functions, anxiety-like behavior and motor performance were evaluated. Finally, brain tissue was collected for immunohistological purposes to evaluate hippocampal (neuro)inflammation. Animals with 20 min daily session of WBV showed a decrease in their anxiety-like behavior and improvement in their spatial memory. Muscle strength in the grip hanging test was only significantly improved by 5 min daily WBV treatments, whereas motor coordination in the balance beam test was not significantly altered. Microglia activation showed a significant decrease in the CA1 and Dentate gyrus subregions by both dose of WBV. In contrast, these effects were less pronounced in the CA3 and Hilus subregions, where only 5 min dose showed a significant effect on microglia activation. Our results indicate, that WBV seems to be a comparable strategy on age-related anxiety, cognitive and motor decline, as well as alleviating age-related (neuro)inflammation.
Collapse
|
3
|
Oroszi T, Geerts E, de Boer SF, Schoemaker RG, van der Zee EA, Nyakas C. Whole Body Vibration Improves Spatial Memory, Anxiety-Like Behavior, and Motor Performance in Aged Male and Female Rats. Front Aging Neurosci 2022; 13:801828. [PMID: 35126091 PMCID: PMC8815031 DOI: 10.3389/fnagi.2021.801828] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/17/2021] [Indexed: 12/26/2022] Open
Abstract
Aging is a progressive process leading to functional decline in many domains. Recent studies have shown that physical exercise (PE) has a positive influence on the progression of age-related functional decline, including motor and brain functions. Whole body vibration (WBV) is a form of passive stimulation by mechanical vibration platforms, which offers an alternative for PE interventions, especially for aged individuals. WBV has been demonstrated to mimic the beneficial effects of PE on the musculoskeletal system, as well on the central nervous system. However, preclinical data with aged rodents are very limited. Hence, the purpose of this experiment was to investigate the effects of a 5-week WBV intervention with an aged animal model on memory functions, anxiety-related behavior, and motor performance. The 18-month old male (N = 14) and female (N = 14) Wistar rats were divided into two groups, namely, vibration and pseudo-vibration. Animals underwent a 5-week WBV intervention protocol with low intensity (frequency of 30 Hz and amplitude of 50–200 μm) stimulation. After 5 weeks, the following cognitive and motor tests were administered: open-field, novel and spatial object recognition, grip-hanging, and balance-beam. WBV-treated rats showed a decrease in their anxiety level in the open field test compared with those in the pseudo-treated controls. In addition, WBV-treated male animals showed significantly increased rearing in the open-field test compared to their pseudo controls. Spatial memory was significantly improved by WBV treatment, whereas WBV had no effect on object memory. Regarding motor performance, both grip strength and motor coordination were improved by WBV treatment. Our results indicate that WBV seems to have comparable beneficial effects on age-related emotional, cognitive, and motor decline as what has been reported for active PE. No striking differences were found between the sexes. As such, these findings further support the idea that WBV could be considered as a useful alternative for PE in case active PE cannot be performed due to physical or mental issues.
Collapse
|
4
|
Comparison of the Effects of Cuprizone on Demyelination in the Corpus Callosum and Hippocampal Progenitors in Young Adult and Aged Mice. Neurochem Res 2022; 47:1073-1082. [DOI: 10.1007/s11064-021-03506-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/22/2021] [Accepted: 12/07/2021] [Indexed: 01/08/2023]
|
5
|
Ionov ID, Pushinskaya II, Gorev NP, Frenkel DD, Severtsev NN. Anticataleptic activity of nicotine in rats: involvement of the lateral entorhinal cortex. Psychopharmacology (Berl) 2021; 238:2471-2483. [PMID: 34002247 DOI: 10.1007/s00213-021-05870-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/05/2021] [Indexed: 01/04/2023]
Abstract
RATIONALE Recently, it was found that cyclosomatostatin-induced catalepsy in middle-aged rats is accompanied by neuronal hypoactivation in the lateral entorhinal cortex (LEntCx); this hypoactivation was reversed by systemic administration of nicotine combined with diphenhydramine. These findings suggest the ability of nicotine to regulate catalepsy and the involvement of the LEntCx in this nicotine effect. OBJECTIVES The study was aimed to assess whether nicotine alone influences catalepsy when injected into the LEntCx and some other neuroanatomical structures. METHODS Experiments were conducted with male Wistar rats of 540-560 days of age. Catalepsy was induced by intracerebroventricular injection of cyclosomatostatin and assessed by the standard bar test. Nicotine was injected into the LEntCx, prelimbic cortex (PrCx), or basolateral amygdala (BLA). The tissue levels of tyrosine hydroxylase, dopamine, and DOPAC in the substantia nigra pars compacta and dorsal striatum were measured with use of HPLC and ELISA. RESULTS Injections of nicotine into the LEntCx but not into the PrCx and BLA produced anticataleptic effect; the nicotine effect was significantly reversed by intra-LEntCx administration of NMDA and non-NMDA glutamate receptor antagonists. Nicotine also attenuated cataleptogen-induced changes in nigrostriatal dopamine metabolism. CONCLUSIONS This may be the first demonstration of anticataleptic activity of nicotine. The results show that the effect is mediated by nicotine receptors in the LEntCx, via a glutamatergic mechanism. These findings may help advance the development of novel treatments for extrapyramidal disorders, including parkinsonism.
Collapse
Affiliation(s)
- Ilya D Ionov
- Centre On Theoretical Problems in Physical and Chemical Pharmacology, Russian Academy of Sciences, Leninsky prospect 123-4-63, Moscow, 117513, Russia.
| | | | | | | | | |
Collapse
|
6
|
Berg J, Cooper J, Salonikas C, Seyedsadjadi N, Grant R. Acute caffeine intake in humans reduces post exercise performance in learning and memory. Hum Psychopharmacol 2021; 36:e2775. [PMID: 33492703 DOI: 10.1002/hup.2775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/20/2020] [Accepted: 12/16/2020] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To clarify the acute effect of caffeine on postexercise memory and learning performance. METHODS Eight male slow-to-normal caffeine metabolizers, unhabituated to caffeine, were recruited into this randomized, double blind, placebo controlled, cross over study. Caffeine (150 mg) or the placebo was consumed one hour prior to two 30 min submaximal cycling sessions. Blood was collected at the beginning, after 20 and 35 min of exercise and 30 min postexercise. Mature brain-derived neurotrophic factor (BDNF) and proBDNF concentrations were determined. Auditory memory was assessed immediately, 30 min and 24 h postexercise. RESULTS Participants averaged lower scores in every measure of learning and memory after ingesting caffeine compared to the placebo. Although the mean did not differ significantly for all measures, significant differences were found between the caffeine and placebo groups for the three indices; learning over time, short-term index and retroactive interference. The ratio of serum mBDNF:proBDNF increased with exercise across all time points. No significant difference in the mBDNF:proBDNF ratio was observed between treatment groups. CONCLUSION The consumption of caffeine prior to exercise may impair an unhabituated individual's capacity to learn and recall auditory information postexercise. However it is yet to be elucidated whether this is through caffeine's modulating effects on brain BDNF.
Collapse
Affiliation(s)
- Jade Berg
- The Australasian Research Institute, Sydney Adventist Hospital, Sydney, New South Wales, Australia
| | - Jesse Cooper
- The Australasian Research Institute, Sydney Adventist Hospital, Sydney, New South Wales, Australia.,School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Chris Salonikas
- The Australasian Research Institute, Sydney Adventist Hospital, Sydney, New South Wales, Australia
| | - Neda Seyedsadjadi
- The Australasian Research Institute, Sydney Adventist Hospital, Sydney, New South Wales, Australia
| | - Ross Grant
- The Australasian Research Institute, Sydney Adventist Hospital, Sydney, New South Wales, Australia.,School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia.,Sydney Adventist Hospital Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| |
Collapse
|
7
|
Oliveira RF, Paiva KM, da Rocha GS, de Moura Freire MA, de Araújo DP, de Oliveira LC, Guzen FP, de Gois Morais PLA, de Paiva Cavalcanti JRL. Neurobiological effects of forced swim exercise on the rodent hippocampus: a systematic review. Acta Neurobiol Exp (Wars) 2021; 81:58-68. [PMID: 33949162 DOI: 10.21307/ane-2021-007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 01/26/2021] [Indexed: 11/11/2022]
Abstract
Forced swimming is a common exercise method used for its low cost and easy management, as seen in studies with the hippocampus. Since it is applied for varied research purposes many protocols are available with diverse aspects of physical intensity, time and periodicity, which produces variable outcomes. In the present study, we performed a systematic review to stress the neurobiological effects of forced swim exercise on the rodent hippocampus. Behavior, antioxidant levels, neurotrophins and inflammatory markers were the main topics examined upon the swimming effects. Better results among these analyses were associated with forced exercise at moderate intensity with an adaptation period and the opposite for continuous exhausting exercises with no adaptation. On further consideration, a standard swimming protocol is necessary to reduce variability of results for each scenario investigated about the impact of the forced swimming on the hippocampus. Forced swimming is a common exercise method used for its low cost and easy management, as seen in studies with the hippocampus. Since it is applied for varied research purposes many protocols are available with diverse aspects of physical intensity, time and periodicity, which produces variable outcomes. In the present study, we performed a systematic review to stress the neurobiological effects of forced swim exercise on the rodent hippocampus. Behavior, antioxidant levels, neurotrophins and inflammatory markers were the main topics examined upon the swimming effects. Better results among these analyses were associated with forced exercise at moderate intensity with an adaptation period and the opposite for continuous exhausting exercises with no adaptation. On further consideration, a standard swimming protocol is necessary to reduce variability of results for each scenario investigated about the impact of the forced swimming on the hippocampus.
Collapse
Affiliation(s)
- Rodrigo Freire Oliveira
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | - Karina Maia Paiva
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | - Gabriel Sousa da Rocha
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | - Marco Aurélio de Moura Freire
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | - Dayane Pessoa de Araújo
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | - Lucídio Cleberson de Oliveira
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | - Fausto Pierdoná Guzen
- Laboratory of Experimental Neurology , Department of Biomedical Sciences , University of the State of Rio Grande do Norte , Brazil
| | | | | |
Collapse
|
8
|
Kowiański P, Lietzau G, Steliga A, Czuba E, Ludkiewicz B, Waśkow M, Spodnik JH, Moryś J. Nicotine-induced CREB and DeltaFosB activity is modified by caffeine in the brain reward system of the rat. J Chem Neuroanat 2018; 88:1-12. [PMID: 29100904 DOI: 10.1016/j.jchemneu.2017.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 12/21/2022]
Abstract
Coffee and nicotine consumption are frequently combined, indicating possible intensifying effect of caffeine on smoking behavior, although neurobiological background of this phenomenon remains unknown. We aimed at determining the effect of caffeine and nicotine, applied separately or simultaneously, on activation of six structures of the brain reward system: nucleus accumbens (NAc), ventral tegmental area (VTA), amygdala (Amg), hippocampus (Hip), medial prefrontal cortex (mPfr) and dorsal striatum (CdP) in the adult male Wistar rats. Activation of two transcription factors, the phosphorylated form of cyclic AMP-response element binding protein (pCREB) and DeltaFosB (ΔFosB) was assessed by immunohistochemistry after multiple-dose five-days psychostimulants administration followed by 20min and 24h survival, respectively. Nicotine evoked the highest increase of pCREB-immunoreactivity (-ir) in NAc, while caffeine exerted the weakest effect in mPfr and CdP. Nicotine/caffeine co-administration resulted in decrease of pCREB-ir in NAc and increase in Amg, compared with the effect of each psychostimulant used separately. Nicotine was the strongest psychostimulant activating ΔFosB-ir in Amg, whereas caffeine - in Hip. Nicotine/caffeine-exerted effect upon ΔFosB-ir in Amg was weaker, whereas in mPfr stronger, than nicotine-evoked effect in these structures. In summary, pCREB and ΔFosB activation is dependent on the type of stimulus, brain structure and functional context. Activation of both transcription factors is responsible for caffeine's modifying effect upon nicotine-related behaviors and must be taken into account while quitting cigarette smoking.
Collapse
Affiliation(s)
- Przemysław Kowiański
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Str., 80-211 Gdansk, Poland; Department of Health Sciences, Pomeranian University of Slupsk, 64 Bohaterów Westerplatte Str., 76-200 Slupsk, Poland.
| | - Grażyna Lietzau
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Str., 80-211 Gdansk, Poland; Department of Clinical Science and Education, Södersjukhuset, Internal Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Aleksandra Steliga
- Department of Health Sciences, Pomeranian University of Slupsk, 64 Bohaterów Westerplatte Str., 76-200 Slupsk, Poland
| | - Ewelina Czuba
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Str., 80-211 Gdansk, Poland
| | - Beata Ludkiewicz
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Str., 80-211 Gdansk, Poland
| | - Monika Waśkow
- Department of Health Sciences, Pomeranian University of Slupsk, 64 Bohaterów Westerplatte Str., 76-200 Slupsk, Poland
| | - Jan H Spodnik
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Str., 80-211 Gdansk, Poland
| | - Janusz Moryś
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Str., 80-211 Gdansk, Poland
| |
Collapse
|
9
|
Mingori MR, Heimfarth L, Ferreira CF, Gomes HM, Moresco KS, Delgado J, Roncato S, Zeidán-Chuliá F, Gelain DP, Moreira JCF. Effect of Paullinia cupana Mart. Commercial Extract During the Aging of Middle Age Wistar Rats: Differential Effects on the Hippocampus and Striatum. Neurochem Res 2017; 42:2257-2273. [DOI: 10.1007/s11064-017-2238-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/13/2017] [Accepted: 03/15/2017] [Indexed: 01/19/2023]
|
10
|
Caffeine treatment aggravates secondary degeneration after spinal cord injury. Brain Res 2015; 1634:75-82. [PMID: 26746340 DOI: 10.1016/j.brainres.2015.12.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/22/2015] [Accepted: 12/23/2015] [Indexed: 12/20/2022]
Abstract
Spinal cord injury (SCI) often results in some form of paralysis. Recently, SCI therapy has been focused on preventing secondary injury to reduce both neuroinflammation and lesion size so that functional outcome after an SCI may be improved. Previous studies have shown that adenosine receptors (AR) are a major regulator of inflammation after an SCI. The current study was performed to examine the effect of caffeine, a pan-AR blocker, on spontaneous functional recovery after an SCI. Animals were assigned into 3 groups randomly, including sham, PBS and caffeine groups. The rat SCI was generated by an NYU impactor with a 10 g rod dropped from a 25 mm height at thoracic 9 spinal cord level. Caffeine and PBS were injected daily during the experiment period. Hind limb motor function was evaluated by the Basso, Beattie, Bresnahan (BBB) locomotor rating scale at 1 week and 4 weeks after the SCI. Spinal cord segments were collected after final behavior evaluation for morphological analysis. The tissue sparing was evaluated by luxol fast blue staining. Immunofluorescence stain was employed to assess astrocyte activation and neurofilament positioning, while microglia activation was examined by immunohistochemistry stain.The results showed that spontaneous functional recovery was blocked after the animals were subjected caffeine daily. Moreover, caffeine administration increased the demyelination area, promoted astrocyte and microglia activation and decreased the quantity of neurofilaments. These findings suggest that the neurotoxicity effect of caffeine may be associated with the inhibition of neural repair and the promotion of neuroinflammation.
Collapse
|