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Rinaudo M, Natale F, La Greca F, Spinelli M, Farsetti A, Paciello F, Fusco S, Grassi C. Hippocampal Estrogen Signaling Mediates Sex Differences in Retroactive Interference. Biomedicines 2022; 10:biomedicines10061387. [PMID: 35740410 PMCID: PMC9219958 DOI: 10.3390/biomedicines10061387] [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: 05/23/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022] Open
Abstract
Despite being a crucial physiological function of the brain, the mechanisms underlying forgetting are still poorly understood. Estrogens play a critical role in different brain functions, including memory. However, the effects of sex hormones on forgetting vulnerabilitymediated by retroactive interference (RI), a phenomenon in which newly acquired information interferes with the retrieval of already stored information, are still poorly understood. The aim of our study was to characterize the sex differences in interference-mediated forgetting and identify the underlying molecular mechanisms. We found that adult male C57bl/6 mice showed a higher susceptibility to RI-dependent memory loss than females. The preference index (PI) in the NOR paradigm was 52.7 ± 5.9% in males and 62.3 ± 13.0% in females. The resistance to RI in female mice was mediated by estrogen signaling involving estrogen receptor α activation in the dorsal hippocampus. Accordingly, following RI, females showed higher phosphorylation levels (+30%) of extracellular signal-regulated kinase1/2 (ERK1/2) in the hippocampus. Pharmacological inhibition of ERK1/2 made female mice prone to RI. The PI was 70.6 ± 11.0% in vehicle-injected mice and 47.4 ± 10.8% following PD98059 administration. Collectively, our data suggest that hippocampal estrogen α receptor-ERK1/2 signaling is critically involved in a pattern separation mechanism that inhibits object-related RI in female mice.
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Affiliation(s)
- Marco Rinaudo
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Correspondence:
| | - Francesca Natale
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Francesco La Greca
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
| | - Matteo Spinelli
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Antonella Farsetti
- Institute for System Analysis and Computer Science “A. Ruberti” (IASI), National Research Council (CNR), 00185 Rome, Italy;
| | - Fabiola Paciello
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Salvatore Fusco
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Claudio Grassi
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.N.); (F.L.G.); (M.S.); (F.P.); (S.F.); (C.G.)
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
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Herold F, Behrendt T, Meißner C, Müller NG, Schega L. The Influence of Acute Sprint Interval Training on Cognitive Performance of Healthy Younger Adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:613. [PMID: 35010873 PMCID: PMC8745010 DOI: 10.3390/ijerph19010613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/21/2021] [Accepted: 12/29/2021] [Indexed: 12/30/2022]
Abstract
There is considerable evidence showing that an acute bout of physical exercises can improve cognitive performance, but the optimal exercise characteristics (e.g., exercise type and exercise intensity) remain elusive. In this regard, there is a gap in the literature to which extent sprint interval training (SIT) can enhance cognitive performance. Thus, this study aimed to investigate the effect of a time-efficient SIT, termed as "shortened-sprint reduced-exertion high-intensity interval training" (SSREHIT), on cognitive performance. Nineteen healthy adults aged 20-28 years were enrolled and assessed for attentional performance (via the d2 test), working memory performance (via Digit Span Forward/Backward), and peripheral blood lactate concentration immediately before and 10 min after an SSREHIT and a cognitive engagement control condition (i.e., reading). We observed that SSREHIT can enhance specific aspects of attentional performance, as it improved the percent error rate (F%) in the d-2 test (t (18) = -2.249, p = 0.037, d = -0.516), which constitutes a qualitative measure of precision and thoroughness. However, SSREHIT did not change other measures of attentional or working memory performance. In addition, we observed that the exercise-induced increase in the peripheral blood lactate levels correlated with changes in attentional performance, i.e., the total number of responses (GZ) (rm = 0.70, p < 0.001), objective measures of concentration (SKL) (rm = 0.73, p < 0.001), and F% (rm = -0.54, p = 0.015). The present study provides initial evidence that a single bout of SSREHIT can improve specific aspects of attentional performance and conforming evidence for a positive link between cognitive improvements and changes in peripheral blood lactate levels.
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Affiliation(s)
- Fabian Herold
- Research Group Degenerative and Chronic Diseases, Movement, Faculty of Health Sciences Brandenburg, University of Potsdam, Karl-Liebknecht-Str. 24–25, 14476 Potsdam, Germany; (F.H.); (N.G.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
- Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Tom Behrendt
- Department of Sport Science, Otto von Guericke University Magdeburg, Zschokkestr. 32, 39104 Magdeburg, Germany; (C.M.); (L.S.)
| | - Caroline Meißner
- Department of Sport Science, Otto von Guericke University Magdeburg, Zschokkestr. 32, 39104 Magdeburg, Germany; (C.M.); (L.S.)
| | - Notger G. Müller
- Research Group Degenerative and Chronic Diseases, Movement, Faculty of Health Sciences Brandenburg, University of Potsdam, Karl-Liebknecht-Str. 24–25, 14476 Potsdam, Germany; (F.H.); (N.G.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
- Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), Leipziger Str. 44, 39120 Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Brenneckestraße 6, 39118 Magdeburg, Germany
| | - Lutz Schega
- Department of Sport Science, Otto von Guericke University Magdeburg, Zschokkestr. 32, 39104 Magdeburg, Germany; (C.M.); (L.S.)
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Jia N, Zhang X, Wang X, Dong X, Zhou Y, Ding M. The Effects of Diverse Exercise on Cognition and Mental Health of Children Aged 5-6 Years: A Controlled Trial. Front Psychol 2021; 12:759351. [PMID: 34955978 PMCID: PMC8692655 DOI: 10.3389/fpsyg.2021.759351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/18/2021] [Indexed: 12/12/2022] Open
Abstract
The rate of learning and cognitive development is at its highest level in preschool-aged children, making this stage a critical period. Exercise has received increasing attention for its beneficial physical and mental health effects on the development of preschool children. This study investigated the effects of diverse exercise on the cognition of preschool children. Two classes were randomly selected from kindergarten classes of children aged 5-6 years, and designated as the experimental and control classes. Each class contained 20 children (10 boys and 10 girls) according to the kindergarten class system. The experimental class completed exercises according to the designed curriculum, while control class carried out exercises according to the regular teaching plan, for a study period of 12 weeks. The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) and the Mental Health Questionnaire for Children were used to assess outcomes, both at the beginning and end of study. After 12 weeks, the experimental class has improved in the "Object Assembly," "Block Design," "Picture Completion," and "Coding" (14.70 ± 2.14, p < 0.01; 14.54 ± 1.56, p < 0.01; 9.62 ± 2.06, p < 0.05; 15.92 ± 2.72, p < 0.05) in performance test, and showed improvements in the "Movement," "Cognitive Ability," "Sociality" and "Living Habits" (5.65 ± 0.59, p < 0.01; 11.20 ± 1.91, p < 0.05; 9.05 ± 1.72, p < 0.05; 7.10 ± 1.45, p < 0.05) in mental health outcomes. Diverse exercise has a significantly beneficial role in promoting the cognitive development of children aged 5-6 years, as well as a beneficial, albeit insignificant, role in their mental health.
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Affiliation(s)
- Ningxin Jia
- College of Physical Education, Shandong Normal University, Jinan, China
| | - Xijin Zhang
- Mengyin Experimental Middle School, Linyi, China
| | - Xu Wang
- Quanxin Primary School, Jinan, China
| | - Xiaosheng Dong
- School of Physical Education, Shandong University, Jinan, China
| | - Yanan Zhou
- College of Physical Education, Shandong Normal University, Jinan, China
| | - Meng Ding
- College of Physical Education, Shandong Normal University, Jinan, China
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Herold F, Törpel A, Hamacher D, Budde H, Zou L, Strobach T, Müller NG, Gronwald T. Causes and Consequences of Interindividual Response Variability: A Call to Apply a More Rigorous Research Design in Acute Exercise-Cognition Studies. Front Physiol 2021; 12:682891. [PMID: 34366881 PMCID: PMC8339555 DOI: 10.3389/fphys.2021.682891] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/21/2021] [Indexed: 12/19/2022] Open
Abstract
The different responses of humans to an apparently equivalent stimulus are called interindividual response variability. This phenomenon has gained more and more attention in research in recent years. The research field of exercise-cognition has also taken up this topic, as shown by a growing number of studies published in the past decade. In this perspective article, we aim to prompt the progress of this research field by (i) discussing the causes and consequences of interindividual variability, (ii) critically examining published studies that have investigated interindividual variability of neurocognitive outcome parameters in response to acute physical exercises, and (iii) providing recommendations for future studies, based on our critical examination. The provided recommendations, which advocate for a more rigorous study design, are intended to help researchers in the field to design studies allowing them to draw robust conclusions. This, in turn, is very likely to foster the development of this research field and the practical application of the findings.
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Affiliation(s)
- Fabian Herold
- Department of Neurology, Medical Faculty, Otto von Guericke University, Magdeburg, Germany.,Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | | | - Dennis Hamacher
- Department of Sport Science, German University for Health and Sports (DHGS), Berlin, Germany
| | - Henning Budde
- Faculty of Human Sciences, MSH Medical School Hamburg, Hamburg, Germany
| | - Liye Zou
- Exercise and Mental Health Laboratory, Institute of KEEP Collaborative Innovation, School of Psychology, Shenzhen University, Shenzhen, China
| | - Tilo Strobach
- Department of Psychology, MSH Medical School Hamburg, Hamburg, Germany
| | - Notger G Müller
- Department of Neurology, Medical Faculty, Otto von Guericke University, Magdeburg, Germany.,Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany.,Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Thomas Gronwald
- Department of Performance, Neuroscience, Therapy and Health, Faculty of Health Sciences, MSH Medical School Hamburg, Hamburg, Germany
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5
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Crawford LK, Caplan JB, Loprinzi PD. The Impact of Acute Exercise Timing on Memory Interference. Percept Mot Skills 2021; 128:1215-1234. [PMID: 33573522 DOI: 10.1177/0031512521993706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This study evaluated whether the timing of acute exercise can attenuate a memory interference effect. Across two experiments, participants completed an AB/AC memory task. Participants studied eight word pairs; four denoted AB (e.g., Hero - Apple) and four control (DE) pairs. Following this List 1, participants studied eight additional word pairs (List 2); four denoted AC, re-using words from the AB pairs (e.g., Hero - Project) and four control (FG) pairs. Following their study of both lists, participants completed a cued recall assessment. In Experiment 1 (N = 100), an acute exercise bout occurred before the AB/AC memory interference task, and the participants' three lab visits (successive conditions) were control, moderate-intensity (50% HRR; heart rate reserve) exercise, and vigorous-intensity (80% HRR) exercise. In Experiment 2 (N = 68), the acute exercise occurred between List 1 and List 2, and the participants' two lab visits (successive conditions) were a (80% HRR) vigorous-intensity exercise visit and a control visit. Across both experiments, we observed evidence of both proactive and retroactive interference (p < .05), but acute exercise, regardless of intensity, did not attenuate this interference (p > .05). Acute moderate-intensity exercise was better than control or vigorous-intensity exercise in enhancing associative memory (p < .05), independent of interference. In Experiment 2, vigorous intensity exercise was associated with more pronounced interference (p < .05). Our results suggest that acute exercise can enhance associative memory performance, with no attenuation of interference by exercise.
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Affiliation(s)
- Lindsay K Crawford
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, United States
| | - Jeremy B Caplan
- Department of Psychology; Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Paul D Loprinzi
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, United States
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Jung M, Brizes I, Wages S, Ponce P, Kang M, Loprinzi PD. Combined effects of acute exercise and hypoxia on memory. Physiol Int 2020; 107:337-348. [PMID: 32644939 DOI: 10.1556/2060.2020.00017] [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: 03/28/2020] [Accepted: 05/27/2020] [Indexed: 11/19/2022]
Abstract
No previous studies have evaluated the potential combined effects of acute exercise and acute hypoxia exposure on memory function, which was the purpose of this study. Twenty-five participants (Mage = 21.2 years) completed two laboratory visits in a counterbalanced order, involving 1) acute exercise (a 20-min bout of moderate-intensity exercise) and then 30 min of exposure to hypoxia (FIO2 = 0.12), and 2) exposure to hypoxia alone (FIO2 = 0.12) for 30 min. Following this, participants completed a cued-recall and memory interference task (AB/AC paradigm), assessing cued-recall memory (recall 1 and recall 2) and memory interference (proactive and retroactive interference). For cued-recall memory, we observed a significant main effect for condition, with Exercise + Hypoxia condition having significantly greater cued-recall performance than Hypoxia alone. Memory interference did not differ as a function of the experimental condition. This experiment demonstrates that engaging in an acute bout of exercise prior to acute hypoxia exposure had an additive effect in enhancing cued-recall memory performance.
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Affiliation(s)
- M Jung
- 1Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA.,2Health and Sport Analytics Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
| | - I Brizes
- 1Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
| | - S Wages
- 1Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
| | - P Ponce
- 1Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
| | - M Kang
- 2Health and Sport Analytics Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
| | - P D Loprinzi
- 1Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS 38677, USA
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Effects of exercise on proactive interference in memory: potential neuroplasticity and neurochemical mechanisms. Psychopharmacology (Berl) 2020; 237:1917-1929. [PMID: 32488351 DOI: 10.1007/s00213-020-05554-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 05/11/2020] [Indexed: 02/07/2023]
Abstract
Proactive interference occurs when consolidated memory traces inhibit new learning. This kind of interference decreases the efficiency of new learning and also causes memory errors. Exercise has been shown to facilitate some types of cognitive function; however, whether exercise reduces proactive interference to enhance learning efficiency is not well understood. Thus, this review discusses the effects of exercise on proactive memory interference and explores potential mechanisms, such as neurogenesis and neurochemical changes, mediating any effect.
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Crawford LK, Li H, Zou L, Wei GX, Loprinzi PD. Hypothesized Mechanisms Through Which Exercise May Attenuate Memory Interference. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:medicina56030129. [PMID: 32183249 PMCID: PMC7143729 DOI: 10.3390/medicina56030129] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/13/2020] [Accepted: 02/21/2020] [Indexed: 01/21/2023]
Abstract
In this paper we introduce a mechanistic model through which exercise may enhance episodic memory, specifically via attenuating proactive and retroactive memory interference. We discuss the various types of memory, different stages of memory function, review the mechanisms behind forgetting, and the mechanistic role of exercise in facilitating pattern separation (to attenuate memory interference).
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Affiliation(s)
- Lindsay K. Crawford
- Exercise & Memory Laboratory, Department of Health, Exercise Science, and Recreation Management, University of Mississippi, Oxford, MS 38677, USA
| | - Hong Li
- School of Psychology, Sichuan Normal University, Chengdu 610101, China
- Correspondence: (P.D.L.); (H.L.); (L.Z.)
| | - Liye Zou
- Exercise & Mental Health Laboratory, School of Psychology, Shenzhen University, Shenzhen 518060, China
- Correspondence: (P.D.L.); (H.L.); (L.Z.)
| | - Gao-Xia Wei
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China;
| | - Paul D. Loprinzi
- Exercise & Memory Laboratory, Department of Health, Exercise Science, and Recreation Management, University of Mississippi, Oxford, MS 38677, USA
- Correspondence: (P.D.L.); (H.L.); (L.Z.)
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