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Vernooij-Dassen M, Verspoor E, Samtani S, Sachdev PS, Ikram MA, Vernooij MW, Hubers C, Chattat R, Lenart-Bugla M, Rymaszewska J, Szczesniak D, Brodaty H, Welmer AK, Maddock J, van der Velpen IF, Wiegelmann H, Marseglia A, Richards M, Melis R, de Vugt M, Moniz-Cook E, Jeon YH, Perry M, Wolf-Ostermann K. Recognition of social health: A conceptual framework in the context of dementia research. Front Psychiatry 2022; 13:1052009. [PMID: 36590639 PMCID: PMC9798783 DOI: 10.3389/fpsyt.2022.1052009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022] Open
Abstract
Objective The recognition of dementia as a multifactorial disorder encourages the exploration of new pathways to understand its origins. Social health might play a role in cognitive decline and dementia, but conceptual clarity is lacking and this hinders investigation of associations and mechanisms. The objective is to develop a conceptual framework for social health to advance conceptual clarity in future studies. Process We use the following steps: underpinning for concept advancement, concept advancement by the development of a conceptual model, and exploration of its potential feasibility. An iterative consensus-based process was used within the international multidisciplinary SHARED project. Conceptual framework Underpinning of the concept drew from a synthesis of theoretical, conceptual and epidemiological work, and resulted in a definition of social health as wellbeing that relies on capacities both of the individual and the social environment. Consequently, domains in the conceptual framework are on both the individual (e.g., social participation) and the social environmental levels (e.g., social network). We hypothesize that social health acts as a driver for use of cognitive reserve which can then slow cognitive impairment or maintain cognitive functioning. The feasibility of the conceptual framework is demonstrated in its practical use in identifying and structuring of social health markers within the SHARED project. Discussion The conceptual framework provides guidance for future research and facilitates identification of modifiable risk and protective factors, which may in turn shape new avenues for preventive interventions. We highlight the paradigm of social health in dementia as a priority for dementia research.
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Affiliation(s)
- Myrra Vernooij-Dassen
- Scientific Center for Quality of Healthcare, Radboud University Medical Center, Nijmegen, Netherlands
| | - Eline Verspoor
- Department Geriatric Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Suraj Samtani
- Discipline of Psychiatry and Mental Health, Centre for Healthy Brain Ageing (CHeBA), University of New South Wales, Sydney, NSW, Australia
| | - Perminder S. Sachdev
- Discipline of Psychiatry and Mental Health, Centre for Healthy Brain Ageing (CHeBA), University of New South Wales, Sydney, NSW, Australia
| | - M. Arfan Ikram
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands
- Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Meike W. Vernooij
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Claudia Hubers
- Department Geriatric Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Rabih Chattat
- Department of Psychology, University of Bologna, Bologna, Italy
| | | | | | - Dorota Szczesniak
- Department of Psychiatry, Wrocław Medical University, Wrocław, Poland
| | - Henry Brodaty
- Discipline of Psychiatry and Mental Health, Centre for Healthy Brain Ageing (CHeBA), University of New South Wales, Sydney, NSW, Australia
- Dementia Centre for Research Collaboration, Sydney, NSW, Australia
| | - Anna-Karin Welmer
- Department of Neurobiology Care Sciences and Society, Aging Research Center & Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden
| | - Jane Maddock
- MRC Unit for Lifelong Health and Ageing at UCL, Faculty of Population Health, University College London, London, United Kingdom
| | - Isabelle F. van der Velpen
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Henrik Wiegelmann
- Department of Nursing Science Research, Institute of Public Health and Nursing Research, University of Bremen, Bremen, Germany
| | - Anna Marseglia
- Department of Neurobiology, Care Sciences and Society, Division of Clinical Geriatrics, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden
| | - Marcus Richards
- MRC Unit for Lifelong Health and Ageing at UCL, Faculty of Population Health, University College London, London, United Kingdom
| | - Rene Melis
- Department Geriatric Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marjolein de Vugt
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neurosciences, Faculty of Health, Medicine and Life Sciences, Alzheimer Centrum Limburg, Maastricht University, Maastricht, Netherland
| | - Esme Moniz-Cook
- Department of Clinical Psychology, University of Hull, Hull, United Kingdom
| | - Yun-Hee Jeon
- Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Marieke Perry
- Department Geriatric Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Karin Wolf-Ostermann
- Department of Nursing Science Research, Institute of Public Health and Nursing Research, University of Bremen, Bremen, Germany
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Lee DH, Seo SW, Roh JH, Oh M, Oh JS, Oh SJ, Kim JS, Jeong Y. Effects of Cognitive Reserve in Alzheimer's Disease and Cognitively Unimpaired Individuals. Front Aging Neurosci 2022; 13:784054. [PMID: 35197838 PMCID: PMC8859488 DOI: 10.3389/fnagi.2021.784054] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/28/2021] [Indexed: 12/16/2022] Open
Abstract
The concept of cognitive reserve (CR) has been proposed as a protective factor that modifies the effect of brain pathology on cognitive performance. It has been characterized through CR proxies; however, they have intrinsic limitations. In this study, we utilized two different datasets containing tau, amyloid PET, and T1 magnetic resonance imaging. First, 91 Alzheimer's disease (AD) continuum subjects were included from Alzheimer's Disease Neuroimaging Initiative 3. CR was conceptualized as the residual between actual cognition and estimated cognition based on amyloid, tau, and neurodegeneration. The proposed marker was tested by the correlation with CR proxy and modulation of brain pathology effects on cognitive function. Second, longitudinal data of baseline 53 AD spectrum and 34 cognitively unimpaired (CU) participants in the MEMORI dataset were analyzed. CR marker was evaluated for the association with disease conversion rate and clinical progression. Applying our multimodal CR model, this study demonstrates the differential effect of CR on clinical progression according to the disease status and the modulating effect on the relationship between brain pathology and cognition. The proposed marker was associated with years of education and modulated the effect of pathological burden on cognitive performance in the AD spectrum. Longitudinally, higher CR marker was associated with lower disease conversion rate among prodromal AD and CU individuals. Higher CR marker was related to exacerbated cognitive decline in the AD spectrum; however, it was associated with a mitigated decline in CU individuals. These results provide evidence that CR may affect the clinical progression differentially depending on the disease status.
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Affiliation(s)
- Dong Hyuk Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
- College of Korean Medicine, Sangji University, Wonju, South Korea
- Research Institute of Korean Medicine, Sangji University, Wonju, South Korea
| | - Sang Won Seo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jee Hoon Roh
- Department of Physiology, Korea University College of Medicine, Seoul, South Korea
- Neuroscience Research Institute, Korea University College of Medicine, Seoul, South Korea
| | - Minyoung Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jungsu S. Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Seung Jun Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae Seung Kim
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Yong Jeong
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
- KI for Health Science and Technology, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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Grazia A, Wimmer M, Müller-Putz GR, Wriessnegger SC. Neural Suppression Elicited During Motor Imagery Following the Observation of Biological Motion From Point-Light Walker Stimuli. Front Hum Neurosci 2022; 15:788036. [PMID: 35069155 PMCID: PMC8779203 DOI: 10.3389/fnhum.2021.788036] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/10/2021] [Indexed: 11/26/2022] Open
Abstract
Introduction: Advantageous effects of biological motion (BM) detection, a low-perceptual mechanism that allows the rapid recognition and understanding of spatiotemporal characteristics of movement via salient kinematics information, can be amplified when combined with motor imagery (MI), i.e., the mental simulation of motor acts. According to Jeannerod's neurostimulation theory, asynchronous firing and reduction of mu and beta rhythm oscillations, referred to as suppression over the sensorimotor area, are sensitive to both MI and action observation (AO) of BM. Yet, not many studies investigated the use of BM stimuli using combined AO-MI tasks. In this study, we assessed the neural response in the form of event-related synchronization and desynchronization (ERD/S) patterns following the observation of point-light-walkers and concordant MI, as compared to MI alone. Methods: Twenty right-handed healthy participants accomplished the experimental task by observing BM stimuli and subsequently performing the same movement using kinesthetic MI (walking, cycling, and jumping conditions). We recorded an electroencephalogram (EEG) with 32 channels and performed time-frequency analysis on alpha (8-13 Hz) and beta (18-24 Hz) frequency bands during the MI task. A two-way repeated-measures ANOVA was performed to test statistical significance among conditions and electrodes of interest. Results: The results revealed significant ERD/S patterns in the alpha frequency band between conditions and electrode positions. Post hoc comparisons showed significant differences between condition 1 (walking) and condition 3 (jumping) over the left primary motor cortex. For the beta band, a significantly less difference in ERD patterns (p < 0.01) was detected only between condition 3 (jumping) and condition 4 (reference). Discussion: Our results confirmed that the observation of BM combined with MI elicits a neural suppression, although just in the case of jumping. This is in line with previous findings of AO and MI (AOMI) eliciting a neural suppression for simulated whole-body movements. In the last years, increasing evidence started to support the integration of AOMI training as an adjuvant neurorehabilitation tool in Parkinson's disease (PD). Conclusion: We concluded that using BM stimuli in AOMI training could be promising, as it promotes attention to kinematic features and imitative motor learning.
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Affiliation(s)
- Alice Grazia
- Deutsches Zentrum für Neurodegenerative Erkrankungen, Rostock-Greifswald, Rostock, Germany
- Department of General Psychology, University of Padova, Padua, Italy
| | - Michael Wimmer
- Institute of Neural Engineering, Graz University of Technology, Graz, Austria
| | - Gernot R. Müller-Putz
- Institute of Neural Engineering, Graz University of Technology, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Selina C. Wriessnegger
- Institute of Neural Engineering, Graz University of Technology, Graz, Austria
- BioTechMed-Graz, Graz, Austria
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Zakharov VV, Novikova MS, Vakhnina NV. [Prevention of dementia in patients with mild cognitive impairment]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:167-174. [PMID: 32929941 DOI: 10.17116/jnevro2020120081167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cognitive impairment is one of the most common consequences of brain dysfunction. Nowadays, there is an increasing interest in the diagnosis and treatment of cognitive impairment without dementia, as a stage of cognitive deficit spectrum that could be controlled. The article discusses the current approaches to the management of patients with mild cognitive impairment including non-pharmacological strategies as well as medical antioxidant treatment.
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Affiliation(s)
- V V Zakharov
- Sechenov First Moscow State Medical University, Moscow,Russia
| | - M S Novikova
- Sechenov First Moscow State Medical University, Moscow,Russia
| | - N V Vakhnina
- Sechenov First Moscow State Medical University, Moscow,Russia
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Iannucci J, Renehan W, Grammas P. Thrombin, a Mediator of Coagulation, Inflammation, and Neurotoxicity at the Neurovascular Interface: Implications for Alzheimer's Disease. Front Neurosci 2020; 14:762. [PMID: 32792902 PMCID: PMC7393221 DOI: 10.3389/fnins.2020.00762] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/29/2020] [Indexed: 12/11/2022] Open
Abstract
The societal burden of Alzheimer’s disease (AD) is staggering, with current estimates suggesting that 50 million people world-wide have AD. Identification of new therapeutic targets is a critical barrier to the development of disease-modifying therapies. A large body of data implicates vascular pathology and cardiovascular risk factors in the development of AD, indicating that there are likely shared pathological mediators. Inflammation plays a role in both cardiovascular disease and AD, and recent evidence has implicated elements of the coagulation system in the regulation of inflammation. In particular, the multifunctional serine protease thrombin has been found to act as a mediator of vascular dysfunction and inflammation in both the periphery and the central nervous system. In the periphery, thrombin contributes to the development of cardiovascular disease, including atherosclerosis and diabetes, by inducing endothelial dysfunction and related inflammation. In the brain, thrombin has been found to act on endothelial cells of the blood brain barrier, microglia, astrocytes, and neurons in a manner that promotes vascular dysfunction, inflammation, and neurodegeneration. Thrombin is elevated in the AD brain, and thrombin signaling has been linked to both tau and amyloid beta, pathological hallmarks of the disease. In AD mouse models, inhibiting thrombin preserves cognition and endothelial function and reduces neuroinflammation. Evidence linking atrial fibrillation with AD and dementia indicates that anticoagulant therapy may reduce the risk of dementia, with targeting thrombin shown to be particularly effective. It is time for “outside-the-box” thinking about how vascular risk factors, such as atherosclerosis and diabetes, as well as the coagulation and inflammatory pathways interact to promote increased AD risk. In this review, we present evidence that thrombin is a convergence point for AD risk factors and as such that thrombin-based therapeutics could target multiple points of AD pathology, including neurodegeneration, vascular activation, and neuroinflammation. The urgent need for disease-modifying drugs in AD demands new thinking about disease pathogenesis and an exploration of novel drug targets, we propose that thrombin inhibition is an innovative tactic in the therapeutic battle against this devastating disease.
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Affiliation(s)
- Jaclyn Iannucci
- The George and Anne Ryan Institute for Neuroscience, The University of Rhode Island, Kingston, RI, United States.,Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, The University of Rhode Island, Kingston, RI, United States
| | - William Renehan
- The George and Anne Ryan Institute for Neuroscience, The University of Rhode Island, Kingston, RI, United States
| | - Paula Grammas
- The George and Anne Ryan Institute for Neuroscience, The University of Rhode Island, Kingston, RI, United States.,Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, The University of Rhode Island, Kingston, RI, United States
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