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Gabrielle Dupuy E, Besnier F, Gagnon C, Breton J, Vincent T, Grégoire CA, Lecchino C, Payer M, Bérubé B, Olmand M, Levesque M, Bouabdallaoui N, Iglesies-Grau J, Juneau M, Vitali P, Gayda M, Nigam A, Bherer L. Cardiorespiratory Fitness Moderates the Age-Related Association Between Executive Functioning and Mobility: Evidence From Remote Assessments. Innov Aging 2022; 7:igac077. [PMID: 36846304 PMCID: PMC9950718 DOI: 10.1093/geroni/igac077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 12/24/2022] Open
Abstract
Background and Objectives In older adults, executive functions are important for daily-life function and mobility. Evidence suggests that the relationship between cognition and mobility is dynamic and could vary according to individual factors, but whether cardiorespiratory fitness reduces the age-related increase of interdependence between mobility and cognition remains unexplored. Research Design and Methods One hundred eighty-nine participants (aged 50-87) were divided into 3 groups according to their age: middle-aged (MA; <65), young older adults (YOA; 65-74), and old older adults (OOA; ≥75). Participants performed Timed Up and Go and executive functioning assessments (Oral Trail Making Test and Phonologic verbal fluency) remotely by videoconference. Participants completed the Matthews questionnaire to estimate their cardiorespiratory fitness (VO2 max in ml/min/kg). A 3-way moderation was used to address whether cardiorespiratory fitness interacts with age to moderate the relationship between cognition and mobility. Results Results showed that the cardiorespiratory fitness × age interaction moderated the association between executive functioning and mobility (β = -0.05; p = .048; R 2 = 17.6; p < .001). At lower levels of physical fitness (<19.16 ml/min/kg), executive functioning significantly influenced YOA's mobility (β = -0.48, p = .004) and to a greater extent OOA's mobility (β = -0.96, p = .002). Discussion and Implications Our results support the idea of a dynamic relationship between mobility and executive functioning during aging and suggest that physical fitness could play a significant role in reducing their interdependency.
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Affiliation(s)
- Emma Gabrielle Dupuy
- Address correspondence to: Emma Gabrielle Dupuy, PhD, Centre ÉPIC of the Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, Qc, H1T 1N6, Canada. E-mail:
| | - Florent Besnier
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Christine Gagnon
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada
| | - Juliana Breton
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada
| | - Thomas Vincent
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada
| | | | - Catia Lecchino
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Marie Payer
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Psychology, Université du Québec à Montréal, Montreal, Quebec, Canada
| | - Béatrice Bérubé
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Psychology, Université du Québec à Montréal, Montreal, Quebec, Canada
| | - Miloudza Olmand
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Marianne Levesque
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Nadia Bouabdallaoui
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Josep Iglesies-Grau
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Martin Juneau
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Paolo Vitali
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Mathieu Gayda
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Anil Nigam
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Louis Bherer
- Centre ÉPIC and Research Center, Montreal Heart Institute, Montreal, Quebec, Canada,Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
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Besnier F, Bérubé B, Malo J, Gagnon C, Grégoire CA, Juneau M, Simard F, L’Allier P, Nigam A, Iglésies-Grau J, Vincent T, Talamonti D, Dupuy EG, Mohammadi H, Gayda M, Bherer L. Cardiopulmonary Rehabilitation in Long-COVID-19 Patients with Persistent Breathlessness and Fatigue: The COVID-Rehab Study. Int J Environ Res Public Health 2022; 19:ijerph19074133. [PMID: 35409815 PMCID: PMC8998214 DOI: 10.3390/ijerph19074133] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/16/2022] [Accepted: 03/24/2022] [Indexed: 01/27/2023]
Abstract
(1) Background: Cardiopulmonary and brain functions are frequently impaired after COVID-19 infection. Exercise rehabilitation could have a major impact on the healing process of patients affected by long COVID-19. (2) Methods: The COVID-Rehab study will investigate the effectiveness of an eight-week cardiopulmonary rehabilitation program on cardiorespiratory fitness (V˙O2max) in long-COVID-19 individuals. Secondary objectives will include functional capacity, quality of life, perceived stress, sleep quality (questionnaires), respiratory capacity (spirometry test), coagulation, inflammatory and oxidative-stress profile (blood draw), cognition (neuropsychological tests), neurovascular coupling and pulsatility (fNIRS). The COVID-Rehab project was a randomised clinical trial with two intervention arms (1:1 ratio) that will be blindly evaluated. It will recruit a total of 40 individuals: (1) rehabilitation: centre-based exercise-training program (eight weeks, three times per week); (2) control: individuals will have to maintain their daily habits. (3) Conclusions: Currently, there are no specific rehabilitation guidelines for long-COVID-19 patients, but preliminary studies show encouraging results. Clinicaltrials.gov (NCT05035628).
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Affiliation(s)
- Florent Besnier
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Béatrice Bérubé
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Psychology, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada
- Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W5, Canada
| | - Jacques Malo
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Christine Gagnon
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
| | - Catherine-Alexandra Grégoire
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
| | - Martin Juneau
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - François Simard
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Philippe L’Allier
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Anil Nigam
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Josep Iglésies-Grau
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Thomas Vincent
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
| | - Deborah Talamonti
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
| | - Emma Gabrielle Dupuy
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Hânieh Mohammadi
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
| | - Mathieu Gayda
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Correspondence:
| | - Louis Bherer
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC H1T 1N6, Canada; (F.B.); (B.B.); (J.M.); (C.G.); (C.-A.G.); (M.J.); (F.S.); (P.L.); (A.N.); (J.I.-G.); (T.V.); (D.T.); (E.G.D.); (H.M.); (L.B.)
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W5, Canada
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Gagnon C, Olmand M, Dupuy EG, Besnier F, Vincent T, Grégoire CA, Lévesque M, Payer M, Bérubé B, Breton J, Lecchino C, Bouabdallaoui N, Iglesies-Grau J, Gayda M, Vitali P, Nigam A, Juneau M, Hudon C, Bherer L. Videoconference version of the Montreal Cognitive Assessment: normative data for Quebec-French people aged 50 years and older. Aging Clin Exp Res 2022; 34:1627-1633. [PMID: 35178685 PMCID: PMC8853900 DOI: 10.1007/s40520-022-02092-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 02/02/2022] [Indexed: 11/29/2022]
Abstract
Background The COVID-19 pandemic forced health professionals to rapidly develop and implement telepractice and remote assessments. Recent reviews appear to confirm the validity of a wide range of neuropsychological tests for teleneuropsychology and among these, the Montreal Cognitive Assessment (MoCA), a cognitive screening test widely used in clinical settings. The normative data specific to the context of videoconference administration is essential, particularly that consider sociodemographic characteristics. Aims This study had for objective to develop French-Quebec normative data for videoconference-administration of the MoCA that consider sociodemographic characteristics. Methods A total of 230 community-dwelling adults aged 50 years and older taking part in clinical trials completed the MoCA by videoconference. Regression analyses were run with sex, education, and age as predictors of the total MoCA scores, based on previously published norms. As an exploratory analysis, a second regression analysis was also run with cardiovascular disease as a predictor. Results Regression analyses revealed that older age and lower education were associated with poorer total MoCA scores, for medium effect size (p < 0.001, R2 = 0.17). Neither sex nor cardiovascular disease, were significant predictors in our analyses. For clinicians, a regression equation was proposed to calculate Z scores. Discussion This study provides normative data for the MoCA administered via videoconference in Quebec-French individuals aged 50 years and over. Conclusions The present normative data will not only allow clinicians to continue to perform assessments remotely in this pandemic period but will also allow them to perform cognitive assessments to patients located in remote areas. Supplementary Information The online version contains supplementary material available at 10.1007/s40520-022-02092-1.
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Affiliation(s)
- Christine Gagnon
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada.
| | - Miloudza Olmand
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Psychology, Université de Montréal, Montréal, Canada
| | - Emma Gabrielle Dupuy
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Florent Besnier
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Thomas Vincent
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
| | - Catherine-Alexandra Grégoire
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
| | - Marianne Lévesque
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Psychology, Université de Montréal, Montréal, Canada
| | - Marie Payer
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Psychology, Université du Québec à Montréal, Montréal, Canada
- Research Center, Institut Universitaire en Santé Mentale de Montréal, Montréal, QC, H1N 3M5, Canada
| | - Béatrice Bérubé
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Psychology, Université du Québec à Montréal, Montréal, Canada
| | - Juliana Breton
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
| | - Catia Lecchino
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Psychology, Université de Montréal, Montréal, Canada
| | - Nadia Bouabdallaoui
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Josep Iglesies-Grau
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Mathieu Gayda
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Paolo Vitali
- Research Centre for Studies on Aging, McGill University, Montréal, Canada
- Department of Neurology and Neurosurgery, Faculty of Medicine, McGill University, Montreal, Canada
| | - Anil Nigam
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Martin Juneau
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
| | - Carol Hudon
- École de Psychologie, Université Laval, Québec, Canada
- Centre de Recherche CERVO, Québec, Canada
| | - Louis Bherer
- Centre ÉPIC and Research Center, Montreal Heart Institute, 5055 rue St Zotique Est, Montréal, QC, H1T 1N6, Canada
- Department of Medicine, Université de Montréal, Montreal, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, Canada
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Besnier F, Dupuy EG, Gagnon C, Vincent T, Grégoire CA, Blanchette CA, Saillant K, Bouabdallaoui N, Grau JI, Bérubé B, Olmand M, Marin MF, Belleville S, Juneau M, Vitali P, Gayda M, Nigam A, Bherer L. Investigation of the Effects of Home-Based Exercise and Cognitive Training on Cognitive and Physical Functions in Cardiac Patients: The COVEPICARDIO Study Protocol of a Randomized Clinical Trial. Front Cardiovasc Med 2021; 8:740834. [PMID: 34938780 PMCID: PMC8685268 DOI: 10.3389/fcvm.2021.740834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/19/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction: During the COVID-19 pandemic, confinement measures are likely to produce collateral damage to health (stress, confusion, anxiety), especially in frail individuals and those living with cardiovascular disease (CVD). In cardiac patients in particular, these measures dramatically increase the level of physical inactivity and sedentary lifestyle, which can decrease cardiorespiratory capacity and increase the risk of acute events, rehospitalization, and depressive syndromes. Maintaining a minimum level of physical activity and cognitive stimulation during the COVID-19 crisis is essential for cardiac patients. This study is designed to document the effects of 6 months of home-based physical exercise alone or combined with cognitive training on cognitive and physical functions in patients with CVD over 50 years old. Methods and Analysis: 122 patients (>50 years old) with stable CVD and no contraindication to perform physical exercise training will be recruited and randomly assigned to one of the 2 following arms: (1) Home-based physical exercise alone, (2) Home-based physical exercise combined with cognitive training. The intervention lasts 6 months, with remote assessments performed prior to, mid and post-training. A follow-up 6 months after the end of the intervention (12 month) is also proposed. The primary outcome is cognition, including general functioning (Montreal Cognitive Assessment (MoCA) score), as well as performances on measures of executive functions, processing speed, and episodic memory. The secondary outcome is physical performance, including balance, gait and mobility, leg muscle strength and estimated cardiorespiratory fitness. Tertiary outcomes include mood, anxiety, and health-related quality of life as assessed by self-reported online questionnaires. Discussion: With the COVID-19 crisis, there is a critical need for remote exercise and cognitive training, and to further investigate this topic, in particular for cardiac patients. The present context can be viewed as an opportunity to perform a major shift from center-based programs to home-based physical exercise. This is especially important to reach out to older adults living in remote areas, where access to such interventions is limited. ClinicalTrials.gov: [https://clinicaltrials.gov/ct2/show/NCT04661189], NCT04661189.
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Affiliation(s)
- Florent Besnier
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Emma Gabrielle Dupuy
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Christine Gagnon
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada
| | - Thomas Vincent
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada
| | | | - Caroll-Ann Blanchette
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Kathia Saillant
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Psychologie, Université du Québec à Montréal, Montréal, QC, Canada
| | - Nadia Bouabdallaoui
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Josep Iglésies Grau
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Béatrice Bérubé
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Psychologie, Université du Québec à Montréal, Montréal, QC, Canada.,Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Miloudza Olmand
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Psychology, Université de Montréal, Montréal, QC, Canada
| | - Marie-France Marin
- Department of Psychologie, Université du Québec à Montréal, Montréal, QC, Canada.,Research Center of the Montreal Mental Health University Institute, Montréal, QC, Canada
| | - Sylvie Belleville
- Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada.,Department of Psychology, Université de Montréal, Montréal, QC, Canada
| | - Martin Juneau
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Paolo Vitali
- McGill University Research Centre for Studies on Aging, Montréal, QC, Canada.,McGill University Department of Neurology and Neurosurgery, Faculty of Medicine, Montréal, QC, Canada
| | - Mathieu Gayda
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Anil Nigam
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Louis Bherer
- Research Center and Centre ÉPIC, Montreal Heart Institute, Montréal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada.,Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
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Dupuy EG, Besnier F, Gagnon C, Vincent T, Grégoire CA, Blanchette CA, Saillant K, Bouabdallaoui N, Iglesies-Grau J, Payer M, Marin MF, Belleville S, Juneau M, Vitali P, Gayda M, Nigam A, Bherer L. COVEPIC (Cognitive and spOrt Virtual EPIC training) investigating the effects of home-based physical exercise and cognitive training on cognitive and physical functions in community-dwelling older adults: study protocol of a randomized single-blinded clinical trial. Trials 2021; 22:505. [PMID: 34325710 PMCID: PMC8319877 DOI: 10.1186/s13063-021-05476-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/21/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In the context of the COVID-19 pandemic, lockdown and social distancing measures are applied to prevent the spread of the virus. It is well known that confinement and social isolation can have a negative impact on physical and mental health, including cognition. Physical activity and cognitive training can help enhance older adults' cognitive and physical health and prevent the negative collateral impacts of social isolation and physical inactivity. The COVEPIC study aims to document the effects of 6 months of home-based physical exercise alone versus home-based physical exercise combined with cognitive training on cognitive and physical functions in adults 50 years and older. METHODS One hundred twenty-two healthy older adults (> 50 years old) will be recruited from the community and randomized to one of the two arms for 6 months: (1) home-based physical exercises monitoring alone and (2) combined physical exercises monitoring with home-based cognitive training. The primary outcome is cognition, including general functioning (Montreal Cognitive Assessment (MoCA) score), as well as executive functions, processing speed, and episodic memory (composite Z-scores based on validated neuropsychological tests and computerized tasks). The secondary outcome is physical functions, including balance (one-leg stance test), gait and mobility performance (Timed Up and Go, 4-meter walk test), leg muscle strength (5-time sit-to-stand), and estimated cardiorespiratory fitness (Matthews' questionnaire). Exploratory outcomes include mood, anxiety, and health-related quality of life as assessed by self-reported questionnaires (i.e., Geriatric depression scale-30 items, Perceived stress scale, State-trait anxiety inventory-36 items, Perseverative thinking questionnaire, Connor-Davidson Resilience Scale 10, and 12-item Short Form Survey). DISCUSSION This trial will document the remote monitoring of home-based physical exercise alone and home-based physical combined with cognitive training to enhance cognitive and physical health of older adults during the COVID-19 pandemic period. Remote interventions represent a promising strategy to help maintain or enhance health and cognition in seniors, and potentially an opportunity to reach older adults in remote areas, where access to such interventions is limited. TRIAL REGISTRATION Clinical trial Identifier NCT04635462 . COVEPIC was retrospectively registered on November 19, 2020.
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Affiliation(s)
- Emma Gabrielle Dupuy
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada.
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada.
| | - Florent Besnier
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Christine Gagnon
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
| | - Thomas Vincent
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
| | - Catherine-Alexandra Grégoire
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
| | - Caroll-Ann Blanchette
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Kathia Saillant
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Psychology, Université du Québec à Montréal, Montréal, Québec, H3C 3P8, Canada
- Research Center, Institut universitaire en santé mentale de Montréal, Montréal, Québec, H1N 3 M5, Canada
| | - Nadia Bouabdallaoui
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Josep Iglesies-Grau
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Marie Payer
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Psychology, Université du Québec à Montréal, Montréal, Québec, H3C 3P8, Canada
- Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, H3W 1 W5, Canada
| | - Marie-France Marin
- Department of Psychology, Université du Québec à Montréal, Montréal, Québec, H3C 3P8, Canada
- Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, H3W 1 W5, Canada
| | - Sylvie Belleville
- Research Center, Institut universitaire en santé mentale de Montréal, Montréal, Québec, H1N 3 M5, Canada
- Department of Psychology, Université de Montréal, Montréal, Québec, H2V 2S9, Canada
| | - Martin Juneau
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Paolo Vitali
- CIUSSS Nord-de-l'Île-de-Montréal, Montréal, Québec, Canada
- Department of Neurology and Neurosurgery, Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Mathieu Gayda
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Anil Nigam
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada
| | - Louis Bherer
- Research center and Centre ÉPIC, Montreal Heart Institute, Université de Montréal, Montréal, Québec, H1T 1 N6, Canada.
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, H3C 3 J7, Canada.
- Research Center, Institut universitaire en santé mentale de Montréal, Montréal, Québec, H1N 3 M5, Canada.
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Langeard A, Cloutier SO, Olmand M, Saillant K, Gagnon C, Grégoire CA, Fortier A, Lacroix M, Lalongé J, Gayda M, Besnier F, Gagnon D, Bherer L, Nigam A. High-intensity interval training vs. hydrochlorothiazide on blood pressure, cardiovascular health and cognition: Protocol of a non-inferiority trial. Contemp Clin Trials 2021; 102:106286. [PMID: 33484896 DOI: 10.1016/j.cct.2021.106286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/05/2021] [Accepted: 01/15/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND While the number of people with hypertension (HBP) continues to increase, the therapeutic target for optimal blood pressure (BP) has been revised to a lower level. Studies have suggested that High-Intensity Interval Training (HIIT) could be as efficient as BP-lowering drugs, but no study has compared their efficacy in a randomized trial. The aim of this protocol is to determine if HIIT is as efficient as Hydrochlorothiazide (HCTZ) in lowering 24 h ambulatory BP in prehypertensive older adults. Moreover, the secondary aim is to determine if HIIT is associated with greater cardiovascular and cognitive benefits than HCTZ. METHODS This study is an interventional, single-center, non-inferiority trial, with two randomized parallel groups of prehypertensive participants aged 60 years or more. One group will be prescribed daily doses of 12.5 mg of HCTZ for 12 weeks, and the other group will follow thrice-weekly HIIT for 12 weeks. Each group will be composed of 30 participants. The primary outcome is 24 h ambulatory BP. Secondary outcomes are scores on neuropsychological assessments, balance and gait performances, maximal oxygen uptake, peripheral endothelial function, and arterial stiffness. Non-inferiority tests will be performed on the primary outcome, and secondary outcomes will be compared using independent t-tests. CONCLUSION This study will determine if HIIT is at least as efficient as HCTZ in lowering BP in prehypertensive older adults. This study will also determine if HIIT provides greater benefits in terms of cardiovascular and cognitive status (NCT04103411).
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Affiliation(s)
- Antoine Langeard
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada; Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada.
| | - Simon-Olivier Cloutier
- Department of Psychology, Université de Montréal, Montréal, Québec, Canada; Preventive Medicine and Physical Activity Center (centre EPIC), Canada
| | - Miloudza Olmand
- Department of Psychology, Université de Montréal, Montréal, Québec, Canada; Preventive Medicine and Physical Activity Center (centre EPIC), Canada
| | - Kathia Saillant
- Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada; Department of Psychology, Université du Québec à Montréal, Montréal, Québec, Canada
| | - Christine Gagnon
- Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Montreal Heart Institute, Montréal, Québec, Canada
| | - Catherine-Alexandra Grégoire
- Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Montreal Heart Institute, Montréal, Québec, Canada
| | - Annick Fortier
- Montreal Health Innovations Coordinating Center (MHICC), Canada
| | - Martine Lacroix
- Research Center, Montreal Heart Institute, Montréal, Québec, Canada
| | - Julie Lalongé
- Preventive Medicine and Physical Activity Center (centre EPIC), Canada
| | - Mathieu Gayda
- Preventive Medicine and Physical Activity Center (centre EPIC), Canada
| | - Florent Besnier
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada; Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Montreal Heart Institute, Montréal, Québec, Canada
| | - Daniel Gagnon
- Department of Kinesiology and Exercise Science, Université de Montréal, Québec, Canada; Preventive Medicine and Physical Activity Center (centre EPIC), Canada
| | - Louis Bherer
- Department of Medicine, Université de Montréal, Montréal, Québec, Canada; Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada.
| | - Anil Nigam
- Preventive Medicine and Physical Activity Center (centre EPIC), Canada; Research Center, Montreal Heart Institute, Montréal, Québec, Canada
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7
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Grégoire CA, Berryman N, St-Onge F, Vu TTM, Bosquet L, Arbour N, Bherer L. Gross Motor Skills Training Leads to Increased Brain-Derived Neurotrophic Factor Levels in Healthy Older Adults: A Pilot Study. Front Physiol 2019; 10:410. [PMID: 31031639 PMCID: PMC6473056 DOI: 10.3389/fphys.2019.00410] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/26/2019] [Indexed: 12/29/2022] Open
Abstract
Exercise is recognized as a promising approach to counteract aging-associated declines in cognitive functions. However, the exact molecular pathways involved remain unclear. Aerobic training interventions and improvements in peak oxygen uptake (VO2peak) have been associated with increases in the peripheral concentration of brain-derived neurotrophic factor (BDNF) and better cognitive performances. However, other training interventions such as resistance training and gross motor skills programs were also linked with improvements in cognitive functions. Thus far, few studies have compared different types of physical exercise training protocols and their impact on BDNF concentrations, especially in participants over 60 years old. The main objective of this study was to compare the effects of three exercise protocols on plasma BDNF concentrations at rest in healthy older adults. Thirty-four older adults were randomized into three interventions: (1) lower body strength and aerobic training (LBS-A), (2) upper body strength and aerobic training (UBS-A), or (3) gross motor activities (GMA). All interventions were composed of 3 weekly sessions over a period of 8 weeks. Physical, biochemical, and cognitive assessments were performed pre and post-intervention. All interventions resulted in improved cognitive functions but the GMA intervention induced a larger increase in plasma BDNF concentrations than LBS-A. No correlation was observed between changes in BDNF concentrations and cognitive performances. These findings suggest that a program of GMA could lead to enhancements in plasma BDNF concentrations. Moreover, cognition improvement could occur without concomitant detectable changes in BDNF, which highlights the multifactorial nature of the exercise-cognition relationship in older adults.
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Affiliation(s)
- Catherine-Alexandra Grégoire
- Montreal Heart Institute, Montreal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada.,Département de Médecine, Université de Montréal, Montreal, QC, Canada
| | - Nicolas Berryman
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada.,Department of Sports Studies, Bishop's University, Sherbrooke, QC, Canada
| | - Florence St-Onge
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada.,Department of Neuroscience, Université de Montréal, CRCHUM, Montreal, QC, Canada
| | - Thien Tuong Minh Vu
- Department of Medicine, Centre Hospitalier de l'Université de Montréal, Service de Gériatrie, Montreal, QC, Canada
| | - Laurent Bosquet
- Laboratory MOVE (EA 6314), Faculty of Sport Sciences, Université de Poitiers, Poitiers, France.,Department of Kinesiology, Université de Montréal, Montreal, QC, Canada
| | - Nathalie Arbour
- Department of Neuroscience, Université de Montréal, CRCHUM, Montreal, QC, Canada
| | - Louis Bherer
- Montreal Heart Institute, Montreal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada.,Département de Médecine, Université de Montréal, Montreal, QC, Canada.,PERFORM Centre, Concordia University, Montreal, QC, Canada
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8
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Grégoire CA, Tobin S, Goldenstein BL, Samarut É, Leclerc A, Aumont A, Drapeau P, Fulton S, Fernandes KJL. RNA-Sequencing Reveals Unique Transcriptional Signatures of Running and Running-Independent Environmental Enrichment in the Adult Mouse Dentate Gyrus. Front Mol Neurosci 2018; 11:126. [PMID: 29706867 PMCID: PMC5908890 DOI: 10.3389/fnmol.2018.00126] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 03/29/2018] [Indexed: 11/18/2022] Open
Abstract
Environmental enrichment (EE) is a powerful stimulus of brain plasticity and is among the most accessible treatment options for brain disease. In rodents, EE is modeled using multi-factorial environments that include running, social interactions, and/or complex surroundings. Here, we show that running and running-independent EE differentially affect the hippocampal dentate gyrus (DG), a brain region critical for learning and memory. Outbred male CD1 mice housed individually with a voluntary running disk showed improved spatial memory in the radial arm maze compared to individually- or socially-housed mice with a locked disk. We therefore used RNA sequencing to perform an unbiased interrogation of DG gene expression in mice exposed to either a voluntary running disk (RUN), a locked disk (LD), or a locked disk plus social enrichment and tunnels [i.e., a running-independent complex environment (CE)]. RNA sequencing revealed that RUN and CE mice showed distinct, non-overlapping patterns of transcriptomic changes versus the LD control. Bio-informatics uncovered that the RUN and CE environments modulate separate transcriptional networks, biological processes, cellular compartments and molecular pathways, with RUN preferentially regulating synaptic and growth-related pathways and CE altering extracellular matrix-related functions. Within the RUN group, high-distance runners also showed selective stress pathway alterations that correlated with a drastic decline in overall transcriptional changes, suggesting that excess running causes a stress-induced suppression of running’s genetic effects. Our findings reveal stimulus-dependent transcriptional signatures of EE on the DG, and provide a resource for generating unbiased, data-driven hypotheses for novel mediators of EE-induced cognitive changes.
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Affiliation(s)
- Catherine-Alexandra Grégoire
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,CNS Research Group, University of Montreal, Montreal, QC, Canada.,Department of Pathology and Cell Biology, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Stephanie Tobin
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,Department of Nutrition, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Brianna L Goldenstein
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,CNS Research Group, University of Montreal, Montreal, QC, Canada.,Department of Neurosciences, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Éric Samarut
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,CNS Research Group, University of Montreal, Montreal, QC, Canada.,Department of Neurosciences, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Andréanne Leclerc
- Department of Neurosciences, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Anne Aumont
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada
| | - Pierre Drapeau
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,CNS Research Group, University of Montreal, Montreal, QC, Canada.,Department of Neurosciences, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Stephanie Fulton
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,Department of Nutrition, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Karl J L Fernandes
- Research Center of the University of Montreal Hospital, University of Montreal, Montreal, QC, Canada.,CNS Research Group, University of Montreal, Montreal, QC, Canada.,Department of Neurosciences, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
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9
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Grégoire CA, Goldenstein BL, Floriddia EM, Barnabé-Heider F, Fernandes KJL. Endogenous neural stem cell responses to stroke and spinal cord injury. Glia 2015; 63:1469-82. [DOI: 10.1002/glia.22851] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 04/13/2015] [Indexed: 01/13/2023]
Affiliation(s)
- Catherine-Alexandra Grégoire
- Research Center of the University of Montreal Hospital (CRCHUM); Quebec Canada
- CNS Research Group (GRSNC), University of Montreal; Quebec Canada
- Department of Pathology and Cell Biology, Faculty of Medicine; Université De Montréal; Quebec Canada
| | - Brianna L. Goldenstein
- Research Center of the University of Montreal Hospital (CRCHUM); Quebec Canada
- CNS Research Group (GRSNC), University of Montreal; Quebec Canada
- Department of Neurosciences, Faculty of Medicine; Université De Montréal; Quebec Canada
| | | | | | - Karl J. L. Fernandes
- Research Center of the University of Montreal Hospital (CRCHUM); Quebec Canada
- CNS Research Group (GRSNC), University of Montreal; Quebec Canada
- Department of Neurosciences, Faculty of Medicine; Université De Montréal; Quebec Canada
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10
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Lacroix S, Hamilton LK, Vaugeois A, Beaudoin S, Breault-Dugas C, Pineau I, Lévesque SA, Grégoire CA, Fernandes KJL. Central canal ependymal cells proliferate extensively in response to traumatic spinal cord injury but not demyelinating lesions. PLoS One 2014; 9:e85916. [PMID: 24475059 PMCID: PMC3903496 DOI: 10.1371/journal.pone.0085916] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 12/09/2013] [Indexed: 11/18/2022] Open
Abstract
The adult mammalian spinal cord has limited regenerative capacity in settings such as spinal cord injury (SCI) and multiple sclerosis (MS). Recent studies have revealed that ependymal cells lining the central canal possess latent neural stem cell potential, undergoing proliferation and multi-lineage differentiation following experimental SCI. To determine whether reactive ependymal cells are a realistic endogenous cell population to target in order to promote spinal cord repair, we assessed the spatiotemporal dynamics of ependymal cell proliferation for up to 35 days in three models of spinal pathologies: contusion SCI using the Infinite Horizon impactor, focal demyelination by intraspinal injection of lysophosphatidylcholine (LPC), and autoimmune-mediated multi-focal demyelination using the active experimental autoimmune encephalomyelitis (EAE) model of MS. Contusion SCI at the T9-10 thoracic level stimulated a robust, long-lasting and long-distance wave of ependymal proliferation that peaked at 3 days in the lesion segment, 14 days in the rostral segment, and was still detectable at the cervical level, where it peaked at 21 days. This proliferative wave was suppressed distal to the contusion. Unlike SCI, neither chemical- nor autoimmune-mediated demyelination triggered ependymal cell proliferation at any time point, despite the occurrence of demyelination (LPC and EAE), remyelination (LPC) and significant locomotor defects (EAE). Thus, traumatic SCI induces widespread and enduring activation of reactive ependymal cells, identifying them as a robust cell population to target for therapeutic manipulation after contusion; conversely, neither demyelination, remyelination nor autoimmunity appears sufficient to trigger proliferation of quiescent ependymal cells in models of MS-like demyelinating diseases.
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Affiliation(s)
- Steve Lacroix
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec – CHUL et Département de médicine moléculaire, Faculté de médecine, Université Laval, Québec, Canada
| | - Laura K. Hamilton
- Department of Neurosciences, Faculty of Medicine, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), and Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Quebec, Canada
| | - Alexandre Vaugeois
- Department of Neurosciences, Faculty of Medicine, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), and Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Quebec, Canada
| | - Stéfanny Beaudoin
- Department of Neurosciences, Faculty of Medicine, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), and Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Quebec, Canada
| | - Christian Breault-Dugas
- Department of Neurosciences, Faculty of Medicine, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), and Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Quebec, Canada
| | - Isabelle Pineau
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec – CHUL et Département de médicine moléculaire, Faculté de médecine, Université Laval, Québec, Canada
| | - Sébastien A. Lévesque
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec – CHUL et Département de médicine moléculaire, Faculté de médecine, Université Laval, Québec, Canada
| | - Catherine-Alexandra Grégoire
- Department of Neurosciences, Faculty of Medicine, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), and Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Quebec, Canada
| | - Karl J. L. Fernandes
- Department of Neurosciences, Faculty of Medicine, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), and Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Quebec, Canada
- * E-mail:
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11
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Grégoire CA, Bonenfant D, Le Nguyen A, Aumont A, Fernandes KJL. Untangling the influences of voluntary running, environmental complexity, social housing and stress on adult hippocampal neurogenesis. PLoS One 2014; 9:e86237. [PMID: 24465980 PMCID: PMC3900491 DOI: 10.1371/journal.pone.0086237] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 12/10/2013] [Indexed: 01/08/2023] Open
Abstract
Environmental enrichment (EE) exerts powerful effects on brain physiology, and is widely used as an experimental and therapeutic tool. Typical EE paradigms are multifactorial, incorporating elements of physical exercise, environmental complexity, social interactions and stress, however the specific contributions of these variables have not been separable using conventional housing paradigms. Here, we evaluated the impacts of these individual variables on adult hippocampal neurogenesis by using a novel "Alternating EE" paradigm. For 4 weeks, adult male CD1 mice were alternated daily between two enriched environments; by comparing groups that differed in one of their two environments, the individual and combinatorial effects of EE variables could be resolved. The Alternating EE paradigm revealed that (1) voluntary running for 3 days/week was sufficient to increase both mitotic and post-mitotic stages of hippocampal neurogenesis, confirming the central importance of exercise; (2) a complex environment (comprised of both social interactions and rotated inanimate objects) had no effect on neurogenesis itself, but enhanced depolarization-induced c-Fos expression (attributable to social interactions) and buffered stress-induced plasma corticosterone levels (attributable to inanimate objects); and (3) neither social isolation, group housing, nor chronically increased levels of plasma corticosterone had a prolonged impact on neurogenesis. Mouse strain, handling and type of running apparatus were tested and excluded as potential confounding factors. These findings provide valuable insights into the relative effects of key EE variables on adult neurogenesis, and this "Alternating EE" paradigm represents a useful tool for exploring the contributions of individual EE variables to mechanisms of neural plasticity.
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Affiliation(s)
- Catherine-Alexandra Grégoire
- Department of Pathology and Cell Biology, Groupe de recherche sur le système nerveux central (GRSNC), and Center of Excellence in Neuroscience of the Université de Montréal (CENUM), Université de Montréal, Montréal, Canada
| | - David Bonenfant
- Department of Pathology and Cell Biology, Groupe de recherche sur le système nerveux central (GRSNC), and Center of Excellence in Neuroscience of the Université de Montréal (CENUM), Université de Montréal, Montréal, Canada
| | - Adalie Le Nguyen
- Department of Pathology and Cell Biology, Groupe de recherche sur le système nerveux central (GRSNC), and Center of Excellence in Neuroscience of the Université de Montréal (CENUM), Université de Montréal, Montréal, Canada
| | - Anne Aumont
- Department of Pathology and Cell Biology, Groupe de recherche sur le système nerveux central (GRSNC), and Center of Excellence in Neuroscience of the Université de Montréal (CENUM), Université de Montréal, Montréal, Canada
| | - Karl J. L. Fernandes
- Department of Pathology and Cell Biology, Groupe de recherche sur le système nerveux central (GRSNC), and Center of Excellence in Neuroscience of the Université de Montréal (CENUM), Université de Montréal, Montréal, Canada
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