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Oi K, Frazier C. Testing of significant changes in big-five personality factors over time in the presence and absence of memory impairment and life-related stress. Sci Rep 2024; 14:19555. [PMID: 39174737 PMCID: PMC11341689 DOI: 10.1038/s41598-024-70388-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 08/16/2024] [Indexed: 08/24/2024] Open
Abstract
This study tests whether memory impairment and perceived increases in stress due to life changes independently contribute to similar personality changes, such as increased neuroticism and decreased conscientiousness. Longitudinal data from 12,912 participants aged 50+ from the Health and Retirement Study (2006-2020) were analyzed using Latent Growth Curve Models (LGCMs). Six LGCMs were simultaneously estimated to examine how changes in personality across three data points spanning 8 years are predicted by both the classification of memory impairment (MI) statuses assessed via the Telephone Interview for Cognitive Status and estimated increases in life stress. Decreases were observed in all Big Five personality factors (B = - 0.240/- 0.510, SE = 0.085/0.089) over the 8-year period. No significant differences in personality changes were found between MI cases and non-MI cases. Increased life stress was significantly associated with a rise in neuroticism (B = 0.587, SE = 0.094) and reductions in conscientiousness, extraversion, agreeableness, and openness (B ranges from - 0.223 to - 0.497). The findings emphasize adaptive/developmental shifts in personality in response to life stress rather than neuropathological ones related to memory impairment. Clinical assessment of personality changes in mid-to-late life should first consider psychological maladaptation to situational threats and challenges.
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Affiliation(s)
- Katsuya Oi
- Department of Sociology, Northern Arizona University, SBS Castro 308 5 E McConnell Dr, Flagstaff, AZ, 86011, USA.
| | - Cleothia Frazier
- Department of Sociology, The Pennsylvania State University, Oswald Tower, University Park, PA, 16802, USA
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Troisi G, Marotta A, Lupiañez J, Casagrande M. Does personality affect the cognitive decline in aging? A systematic review. Ageing Res Rev 2024; 100:102455. [PMID: 39153600 DOI: 10.1016/j.arr.2024.102455] [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: 03/29/2024] [Revised: 08/03/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Cognitive decline is a natural consequence of aging, but several genetic, environmental, and psychological factors can influence its trajectories. Among the most enduring factors, the Big Five personality traits - defined as relatively stable tendencies to think, behave, and react to the environment - can influence both directly (e.g., by physiological correlates) and indirectly (e.g., healthy or risky behaviors) the risk of developing dementia and mild cognitive impairment (MCI) - a preclinical form of cognitive decline. Despite the great amount of studies focusing on the relationship between personality and cognitive decline, an updated systematic synthesis of the results including a broader range of study designs is still lacking. This systematic review aims to summarize the findings of studies investigating: (i) differences in personality traits between groups of healthy individuals and those with MCI, (ii) the impact of personality traits on the risk for both MCI and dementia, and (iii) changes in personality traits among individuals progressing from normal cognition to MCI. Neuroticism emerged as a significant risk factor for MCI and dementia; Conscientiousness and Openness appear to offer protection against dementia and moderate cognitive decline. Overall, these findings suggest a pivotal role of personality structure in shaping cognitive outcomes on the long run.
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Affiliation(s)
- Giovanna Troisi
- Department of Psychology, University of Rome "Sapienza", Rome 00185, Italy; Department of Experimental Psychology, and Mind, Brain, and Behavior Research Center (CIMCYC), University of Granada, Granada, Spain.
| | - Andrea Marotta
- Department of Experimental Psychology, and Mind, Brain, and Behavior Research Center (CIMCYC), University of Granada, Granada, Spain
| | - Juan Lupiañez
- Department of Experimental Psychology, and Mind, Brain, and Behavior Research Center (CIMCYC), University of Granada, Granada, Spain
| | - Maria Casagrande
- Department of Dynamic and Clinical Psychology and Health, University of Rome "Sapienza", Rome 00185, Italy
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Murai T, Bailey L, Schultz L, Mongeau L, DeSana A, Silva AC, Roberts AC, Sukoff Rizzo SJ. Improving preclinical to clinical translation of cognitive function for aging-related disorders: the utility of comprehensive touchscreen testing batteries in common marmosets. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2024; 24:325-348. [PMID: 38200282 PMCID: PMC11039501 DOI: 10.3758/s13415-023-01144-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2023] [Indexed: 01/12/2024]
Abstract
Concerns about poor animal to human translation have come increasingly to the fore, in particular with regards to cognitive improvements in rodent models, which have failed to translate to meaningful clinical benefit in humans. This problem has been widely acknowledged, most recently in the field of Alzheimer's disease, although this issue pervades the spectrum of central nervous system (CNS) disorders, including neurodevelopmental, neuropsychiatric, and neurodegenerative diseases. Consequently, recent efforts have focused on improving preclinical to clinical translation by incorporating more clinically analogous outcome measures of cognition, such as touchscreen-based assays, which can be employed across species, and have great potential to minimize the translational gap. For aging-related research, it also is important to incorporate model systems that facilitate the study of the long prodromal phase in which cognitive decline begins to emerge and which is a major limitation of short-lived species, such as laboratory rodents. We posit that to improve translation of cognitive function and dysfunction, nonhuman primate models, which have conserved anatomical and functional organization of the primate brain, are necessary to move the field of translational research forward and to bridge the translational gaps. The present studies describe the establishment of a comprehensive battery of touchscreen-based tasks that capture a spectrum of domains sensitive to detecting aging-related cognitive decline, which will provide the greatest benefit through longitudinal evaluation throughout the prolonged lifespan of the marmoset.
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Affiliation(s)
- Takeshi Murai
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lauren Bailey
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Laura Schultz
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lauren Mongeau
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Andrew DeSana
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Afonso C Silva
- Department of Neurobiology, University of Pittsburgh School of Medicine, 514A Bridgeside Point 1, 100 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Angela C Roberts
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Stacey J Sukoff Rizzo
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Neurobiology, University of Pittsburgh School of Medicine, 514A Bridgeside Point 1, 100 Technology Drive, Pittsburgh, PA, 15219, USA.
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Therrien S, Anthony M, Turnbull A, Lin FV. Risk-Taking Behavior Differs Between Older Adults with and without Mild Cognitive Impairment. J Alzheimers Dis 2024; 100:1227-1235. [PMID: 39031355 DOI: 10.3233/jad-231448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Background Adequately evaluating risk and making decisions is vital but understudied for older adults living independently but with compromised cognition, as seen in those with mild cognitive impairment (MCI), specifically those with amnestic MCI (aMCI) which is associated with higher risk of conversion to Alzheimer's disease. Objective We propose to comprehensively evaluate risk-taking behaviors across domains important for everyday activities between an aMCI group and their cognitively healthy counterparts (HC). Methods A case-control study design. Data on risk-taking behaviors via the Domain-Specific Risk-Taking Scale (DOSPERT), and candidate confounding mental health factors (i.e., neurodegeneration, depression, and fatigue) were collected. Analyses on group difference and interaction between group and confounding factors on risk-taking behaviors were conducted. Results The aMCI group showed a higher likelihood of risk-taking than HC (t = 4.38, df = 73, p < 0.001). Moderation analysis showed fatigue (F = 5.91, p = 0.018) and presence of depression (F = 4.52, p = 0.037), but not neurodegeneration, as significant moderators for group and DOSPERT total score, controlling for sex. In post-hoc analyses, there was a significant relationship between both fatigue (B = -7.83, SE = 3.65, t = -2.14, p = 0.036), and presence of depression (B = -20.80, SE = 9.97, t = -2.09, p = 0.041), with DOSPERT total score for HC but not for aMCI. There were no significant relationships between neurodegeneration, fatigue, or depression with any specific risk-taking domains after correction for multiple comparisons. Conclusions Our results show differences in risk-taking behavior between older adults with and without intact cognition, and overall decision-making is affected by fatigue and depression in HC but not aMCI, together suggesting the importance of cognition in the ability to adjust risk-taking behaviors.
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Affiliation(s)
- Sarah Therrien
- Department of Psychiatry and Behavioral Sciences, CogT Lab, Stanford University, Palo Alto, CA, USA
| | - Mia Anthony
- Department of Psychiatry and Behavioral Sciences, CogT Lab, Stanford University, Palo Alto, CA, USA
- Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY, USA
| | - Adam Turnbull
- Department of Psychiatry and Behavioral Sciences, CogT Lab, Stanford University, Palo Alto, CA, USA
| | - F Vankee Lin
- Department of Psychiatry and Behavioral Sciences, CogT Lab, Stanford University, Palo Alto, CA, USA
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Sutin AR, Luchetti M, Stephan Y, Terracciano A. Informant-rated change in personality traits, psychological distress, well-being, and social connection with dementia. Arch Gerontol Geriatr 2023; 115:105218. [PMID: 37837789 PMCID: PMC10646812 DOI: 10.1016/j.archger.2023.105218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/26/2023] [Accepted: 09/30/2023] [Indexed: 10/16/2023]
Abstract
OBJECTIVES Studies of retrospective personality change with dementia consistently find caregivers report large changes in personality (e.g., increases in neuroticism) of their care recipients compared to before dementia. This work seeks to replicate the established pattern of personality change, extend it to change in psychological distress, well-being, and social connection, and evaluate whether changes vary by stage of dementia. METHODS Caregivers of people with dementia (N = 188) reported on the psychological and social health of their care recipient currently and how they were before they developed dementia. Personality was measured as five factor model traits. Psychological distress was measured as symptoms of depression and anxiety, perceived stress, and pessimism. Psychological well-being was measured as purpose in life, life satisfaction, happiness, self-efficacy, and optimism. Social connection was measured as loneliness, belonging, social support, and social strain. RESULTS There were substantial increases in neuroticism (d = 1.14) and decreases in the other four personality traits (d range=-0.85 to -1.37). There were significant increases in psychological distress (e.g., d = 1.07 for depression) and substantial decreases in well-being (e.g., d=-1.18 for purpose in life) and social connection (e.g., d=-1.12 for belonging). Change was apparent across dementia stage and generally larger in more severe dementia. DISCUSSION In addition to personality, there are large retrospective changes in psychological distress, well-being, and social connection with dementia. These quantitative findings complement clinical observations of the natural history of psychosocial changes in people with dementia, and can inform families, clinicians, and researchers on commonly observed changes and improve interventions to mitigate dementia burden.
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Waschkies KF, Soch J, Darna M, Richter A, Altenstein S, Beyle A, Brosseron F, Buchholz F, Butryn M, Dobisch L, Ewers M, Fliessbach K, Gabelin T, Glanz W, Goerss D, Gref D, Janowitz D, Kilimann I, Lohse A, Munk MH, Rauchmann BS, Rostamzadeh A, Roy N, Spruth EJ, Dechent P, Heneka MT, Hetzer S, Ramirez A, Scheffler K, Buerger K, Laske C, Perneczky R, Peters O, Priller J, Schneider A, Spottke A, Teipel S, Düzel E, Jessen F, Wiltfang J, Schott BH, Kizilirmak JM. Machine learning-based classification of Alzheimer's disease and its at-risk states using personality traits, anxiety, and depression. Int J Geriatr Psychiatry 2023; 38:e6007. [PMID: 37800601 DOI: 10.1002/gps.6007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 09/07/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is often preceded by stages of cognitive impairment, namely subjective cognitive decline (SCD) and mild cognitive impairment (MCI). While cerebrospinal fluid (CSF) biomarkers are established predictors of AD, other non-invasive candidate predictors include personality traits, anxiety, and depression, among others. These predictors offer non-invasive assessment and exhibit changes during AD development and preclinical stages. METHODS In a cross-sectional design, we comparatively evaluated the predictive value of personality traits (Big Five), geriatric anxiety and depression scores, resting-state functional magnetic resonance imaging activity of the default mode network, apoliprotein E (ApoE) genotype, and CSF biomarkers (tTau, pTau181, Aβ42/40 ratio) in a multi-class support vector machine classification. Participants included 189 healthy controls (HC), 338 individuals with SCD, 132 with amnestic MCI, and 74 with mild AD from the multicenter DZNE-Longitudinal Cognitive Impairment and Dementia Study (DELCODE). RESULTS Mean predictive accuracy across all participant groups was highest when utilizing a combination of personality, depression, and anxiety scores. HC were best predicted by a feature set comprised of depression and anxiety scores and participants with AD were best predicted by a feature set containing CSF biomarkers. Classification of participants with SCD or aMCI was near chance level for all assessed feature sets. CONCLUSION Our results demonstrate predictive value of personality trait and state scores for AD. Importantly, CSF biomarkers, personality, depression, anxiety, and ApoE genotype show complementary value for classification of AD and its at-risk stages.
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Affiliation(s)
- Konrad F Waschkies
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
| | - Joram Soch
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Bernstein Center for Computational Neuroscience, Berlin, Germany
| | - Margarita Darna
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Anni Richter
- Leibniz Institute for Neurobiology, Magdeburg, Germany
- German Center for Mental Health (DZPG), Munich, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Jena-Magdeburg-Halle, Germany
| | - Slawek Altenstein
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
| | - Aline Beyle
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University of Bonn, Bonn, Germany
| | | | - Friederike Buchholz
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin-Institute of Psychiatry and Psychotherapy, Berlin, Germany
| | - Michaela Butryn
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University, Magdeburg, Germany
| | - Laura Dobisch
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Michael Ewers
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Klaus Fliessbach
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Bonn, Germany
| | - Tatjana Gabelin
- Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin-Institute of Psychiatry and Psychotherapy, Berlin, Germany
| | - Wenzel Glanz
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University, Magdeburg, Germany
| | - Doreen Goerss
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Rostock, Germany
| | - Daria Gref
- Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin-Institute of Psychiatry and Psychotherapy, Berlin, Germany
| | - Daniel Janowitz
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Ingo Kilimann
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Rostock, Germany
| | - Andrea Lohse
- Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
| | - Matthias H Munk
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Boris-Stephan Rauchmann
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK
- Department of Neuroradiology, University Hospital LMU, Munich, Germany
| | - Ayda Rostamzadeh
- Department of Psychiatry, University of Cologne, Medical Faculty, Cologne, Germany
| | - Nina Roy
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Eike Jakob Spruth
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
| | - Peter Dechent
- MR-Research in Neurosciences, Department of Cognitive Neurology, Georg-August-University Goettingen, Göttingen, Germany
| | - Michael T Heneka
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Stefan Hetzer
- Berlin Center for Advanced Neuroimaging, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Alfredo Ramirez
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Bonn, Germany
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of Psychiatry & Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, San Antonio, Texas, USA
| | - Klaus Scheffler
- Department for Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Katharina Buerger
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Christoph Laske
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Robert Perneczky
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK
- Munich Cluster for Systems Neurology (SyNergy) Munich, Munich, Germany
- Ageing Epidemiology Research Unit (AGE), School of Public Health, Imperial College London, London, UK
| | - Oliver Peters
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin-Institute of Psychiatry and Psychotherapy, Berlin, Germany
| | - Josef Priller
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
- School of Medicine, Technical University of Munich, Department of Psychiatry and Psychotherapy, Munich, Germany
- University of Edinburgh and UK DRI, Edinburgh, UK
| | - Anja Schneider
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Bonn, Germany
| | - Annika Spottke
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University of Bonn, Bonn, Germany
| | - Stefan Teipel
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Rostock, Germany
| | - Emrah Düzel
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University, Magdeburg, Germany
| | - Frank Jessen
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Psychiatry, University of Cologne, Medical Faculty, Cologne, Germany
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Jens Wiltfang
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
- Neurosciences and Signaling Group, Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Björn H Schott
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
- Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Jasmin M Kizilirmak
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Neurodidactics and NeuroLab, Institute for Psychology, University of Hildesheim, Hildesheim, Germany
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Stolz C, Bulla A, Soch J, Schott BH, Richter A. Openness to Experience is associated with neural and performance measures of memory in older adults. Soc Cogn Affect Neurosci 2023; 18:nsad041. [PMID: 37632761 PMCID: PMC10533339 DOI: 10.1093/scan/nsad041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 06/20/2023] [Accepted: 08/25/2023] [Indexed: 08/28/2023] Open
Abstract
Age-related decline in episodic memory performance is a well-replicated finding across numerous studies. Recent studies focusing on aging and individual differences found that the Big Five personality trait Openness to Experience (hereafter: Openness) is associated with better episodic memory performance in older adults, but the associated neural mechanisms are largely unclear. Here, we investigated the relationship between Openness and memory network function in a sample of 352 participants (143 older adults, 50-80 years; 209 young adults, 18-35 years). Participants underwent functional magnetic resonance imaging (fMRI) during a visual memory encoding task. Functional memory brain-network integrity was assessed using the similarity of activations during memory encoding (SAME) scores, which reflect the similarity of a participant's memory network activity compared to prototypical fMRI activity patterns of young adults. Openness was assessed using the NEO Five-Factor Inventory. Older vs young adults showed lower memory performance and higher deviation of fMRI activity patterns (i.e. lower SAME scores). Specifically in older adults, high Openness was associated with better memory performance, and mediation analysis showed that this relationship was partially mediated by higher SAME scores. Our results suggest that trait Openness may constitute a protective factor in cognitive aging by better preservation of the brain's memory network.
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Affiliation(s)
- Christopher Stolz
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
- Department of Neuropsychology, Institute of Psychology, Otto-von-Guericke University Magdeburg, Magdeburg 39106, Germany
| | - Ariane Bulla
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Joram Soch
- German Center for Neurodegenerative Diseases (DZNE), Göttingen 37075, Germany
- Bernstein Center for Computational Neuroscience (BCCN), Berlin 10115, Germany
| | - Björn H Schott
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
- German Center for Neurodegenerative Diseases (DZNE), Göttingen 37075, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen 37075, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Anni Richter
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
- German Center for Mental Health (DZPG), Germany
- Center for Intervention and Research on adaptive and maladaptive brain Circuits underlying mental health (C-I-R-C), Jena-Magdeburg-Halle, Germany
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Sutin AR, Luchetti M, Stephan Y, Terracciano A. Informant-rated change in personality traits, psychological distress, well-being, and social connection with dementia. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.18.23294273. [PMID: 37645921 PMCID: PMC10462197 DOI: 10.1101/2023.08.18.23294273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Objectives Studies of retrospective personality change with dementia consistently find caregivers report large changes in personality (e.g., increases in neuroticism) of their care recipients compared to before dementia. This work seeks to replicate the established pattern of personality change, extend it to change in psychological distress, well-being, and social connection, and evaluate whether changes vary by stage of dementia. Methods Caregivers of people with dementia (N=194) reported on the psychological and social health of their care recipient currently and how they were before they developed dementia. Personality was measured as five factor model traits. Psychological distress was measured as symptoms of depression and anxiety, perceived stress, and pessimism. Psychological well-being was measured as purpose in life, life satisfaction, happiness, self-efficacy, and optimism. Social connection was measured as loneliness, belonging, social support, and social strain. Results There were substantial increases in neuroticism (d=1.10) and decreases in the other four personality traits (d range=-.82 to -1.31). There were significant increases in psychological distress (e.g., d=1.05 for depression) and substantial decreases in well-being (e.g., d=-1.07 for purpose in life) and social connection (e.g., d=-1.09 for belonging). Change was apparent across dementia stage and generally larger in more severe dementia. Discussion In addition to personality, there are large retrospective changes in psychological distress, well-being, and social connection with dementia. These quantitative findings complement clinical observations of the natural history of psychosocial changes in people with dementia, and can inform families, clinicians, and researchers on commonly observed changes and improve interventions to mitigate dementia burden.
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Hunt A, Martyr A, Gamble LD, Morris RG, Thom JM, Pentecost C, Clare L. The associations between personality traits and quality of life, satisfaction with life, and well-being over time in people with dementia and their caregivers: findings from the IDEAL programme. BMC Geriatr 2023; 23:354. [PMID: 37280511 DOI: 10.1186/s12877-023-04075-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 05/27/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Cross-sectional evidence indicates that certain personality traits may influence how well people with dementia and their caregivers are able to live alongside the condition. However, no studies to date have explored these associations longitudinally. The present study aimed to explore whether each of the Five-Factor personality traits were associated with change over two years in perceptions of 'living well' for people with dementia and their caregivers. 'Living well' was conceptualized as a composite of quality of life, satisfaction with life, and subjective well-being. METHODS Data were analyzed from 1487 people with dementia and 1234 caregivers who took part in the IDEAL cohort. Participants were categorized into low, medium, and high groups for each trait using stanine scores. Latent growth curve models investigated associations between these groups and 'living well' scores for each trait at baseline and at 12 and 24 months. Covariates included cognition in people with dementia and stress in caregivers. A Reliable Change Index was calculated against which to evaluate changes in 'living well' scores over time. RESULTS At baseline, neuroticism was negatively associated with 'living well' scores for people with dementia, while conscientiousness, extraversion, openness, and agreeableness were positively associated. For caregivers, neuroticism was negatively associated with 'living well' scores at baseline while conscientiousness and extraversion were positively associated. 'Living well' scores were mostly stable over time with no influence of personality traits on observed changes. CONCLUSIONS Findings suggest that personality traits, particularly neuroticism, have a meaningful impact on how people with dementia and caregivers rate their capability to 'live well' at baseline. Over time 'living well' scores for each personality trait group were largely stable. Studies utilizing longer follow-up periods and more appropriate measures of personality are needed to corroborate and extend the findings of the present study.
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Affiliation(s)
- Anna Hunt
- Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, UK
| | - Anthony Martyr
- Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, UK.
| | - Laura D Gamble
- Population Health Sciences Institute, Newcastle University, Newcastle, UK
| | - Robin G Morris
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Jeanette M Thom
- School of Health Sciences, The University of Sydney, Sydney, Australia
| | - Claire Pentecost
- Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, UK
| | - Linda Clare
- Centre for Research in Ageing and Cognitive Health, University of Exeter Medical School, Exeter, UK
- NIHR Applied Research Collaboration South-West Peninsula, Exeter, UK
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10
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Henriques-Calado J. Personality traits and disorders in Alzheimer's disease. Brain Behav 2023; 13:e2938. [PMID: 36919197 PMCID: PMC10097140 DOI: 10.1002/brb3.2938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND The relationships between axis II personality disorders and the normative personality traits were explored in the context of current and pre-morbid personality assessment in Alzheimer's disease (AD). METHODS The study was conducted with four groups who were administered the NEO-FFI and the PDQ-4+, in the form of individual interview sessions. Current personality measure: consisting of 44 female participants (AD group) and, the control group, consisting of 80 female participants from the population at large. Pre-morbid personality measure: AD group informants (n = 40); control group informants (n = 42). RESULTS The results are in line with the literature review and provide new research data. By factorial discriminant analysis, the current and pre-morbid personality variables that differentiate AD from control groups are identified. The personality traits variables are the best discriminators such as low agreeableness, low openness to experience, and high neuroticism, suggesting that the maladaptive personality functioning can be described extending the range of psychopathology to a dimensional approach. CONCLUSIONS The study of personality variables seems to suggest, in their inclusion, the possibility to increase sensitivity toward an assessment in AD.
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Affiliation(s)
- Joana Henriques-Calado
- Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade, Lisboa, Portugal.,CICPSI, Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade, Lisboa, Portugal
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11
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Karimi N, Bayram Çatak F, Arslan E, Saghazadeh A, Rezaei N. Tau immunotherapy in Alzheimer’s disease and progressive supranuclear palsy. Int Immunopharmacol 2022; 113:109445. [DOI: 10.1016/j.intimp.2022.109445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/19/2022]
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12
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Lopes KF, Bahia VS, Natividade JC, Bastos RVS, Shiguti WA, da Silva KER, de Souza WC. Changes in personality traits in patients with Alzheimer's Disease. Dement Neuropsychol 2022; 16:187-193. [PMID: 35720659 PMCID: PMC9173796 DOI: 10.1590/1980-5764-dn-2021-0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/30/2021] [Indexed: 05/31/2023] Open
Abstract
Changes in personality traits in patients with Alzheimer's disease (AD) are extremely common throughout the course of the pathology, and these behavioral changes present themselves as challenges in clinical management and as a significant cause of caregivers’ burden.
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Affiliation(s)
- Kaoue Fonseca Lopes
- Universidade de Brasília, Instituto de Psicologia, Departamento de Processos Psicológicos Básicos, Brasília DF, Brazil.,Clínica de Neurologia Neurob, Brasília DF, Brazil
| | - Valéria Santoro Bahia
- Universidade Cidade de São Paulo, Departamento de Medicina Interna, São Paulo SP, Brazil
| | - Jean Carlos Natividade
- Pontifícia Universidade Católica do Rio de Janeiro, Instituto de Psicologia, Departamento de Psicologia Social, Rio de Janeiro RJ, Brazil
| | - Rafael Valdece Sousa Bastos
- Universidade São Francisco, Instituto de Psicologia, Departamento de Psicologia Social, São Paulo SP, Brazil
| | | | | | - Wânia Cristina de Souza
- Universidade de Brasília, Instituto de Psicologia, Departamento de Processos Psicológicos Básicos, Brasília DF, Brazil
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13
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Strikwerda-Brown C. Chicken or Egg? Untangling the Associations Between Personality Traits and Alzheimer's Disease Pathology. Biol Psychiatry 2022; 91:e17-e19. [PMID: 35057972 DOI: 10.1016/j.biopsych.2021.11.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/02/2022]
Affiliation(s)
- Cherie Strikwerda-Brown
- Centre for Studies on the Prevention of Alzheimer's Disease, Douglas Mental Health University Institute, Montreal, Quebec, Canada; Department of Psychiatry, McGill University, Montreal, Quebec, Canada.
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14
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Spatuzzi R, Vespa A, Fabbietti P, Ricciuti M, Rosati G, Guariniello L, Verrastro MAF, Attademo L, Giulietti MV. Elderly Helping Other Elderly: A Comparative Study of Family Caregiver Burden Between Patients With Dementia or Cancer at the End of Life. JOURNAL OF SOCIAL WORK IN END-OF-LIFE & PALLIATIVE CARE 2022; 18:96-108. [PMID: 35245165 DOI: 10.1080/15524256.2022.2042459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A new reality is being observed around the world as the population ages: family caregivers, who are themselves older adults helping their ill older relatives. The aim of this study is to assess the burden of the older family caregiver assisting older patients in his or her end-of-life who are suffering from dementia or cancer. In this context, the elderly person is involved in the dual role of patient and caregiver. In this comparative study, a total of 87 older family caregivers (age ≥ 65 years) completed the Caregiver Burden Inventory (CBI) measurement. The sample was divided into 2 subgroups based on the individuals' advanced disease: Alzheimer's disease (AD) or cancer. Compared to cancer caregivers, the AD subgroup reported significantly higher scores in the CBI-emotional subscale (P = 0.006), confirmed by the evaluation of the generalized linear model (multivariate). There were no significant differences in the other CBI subscales and overall scores. According to the findings of this study, elderly who help elderly with AD are at a higher risk of experiencing an emotional burden than cancer caregivers. This data could be considered in designing interventions to reduce the caregiver burden of older family caregivers as they provide informal end-of-life care.
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Affiliation(s)
- Roberta Spatuzzi
- UOSD CSM Vulture-Melfese, Department of Mental Health, ASP Basilicata, Potenza, Italy
| | - Anna Vespa
- Clinic of Internal Medicine and Geriatrics, Scientific and Technological Area, INRCA-IRCCS National Institute of Health and Science on Aging, Ancona, Italy
| | - Paolo Fabbietti
- Biostatistical Center, INRCA-IRCCS National Institute of Health and Science on Aging, Ancona, Italy
| | | | - Gerardo Rosati
- Medical Oncology Unit, "San Carlo" Hospital, Potenza, Italy
| | - Lorella Guariniello
- UOSD CSM Vulture-Melfese, Department of Mental Health, ASP Basilicata, Potenza, Italy
| | | | - Luigi Attademo
- Department of Mental Health, Hospital Psychiatric Service of Diagnosis and Care at "San Carlo" Hospital, ASP Basilicata, Italian NHS, Italy
| | - Maria Velia Giulietti
- Clinic of Internal Medicine and Geriatrics, Scientific and Technological Area, INRCA-IRCCS National Institute of Health and Science on Aging, Ancona, Italy
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15
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Luan F, Peng L, Lei Z, Jia X, Zou J, Yang Y, He X, Zeng N. Traditional Uses, Phytochemical Constituents and Pharmacological Properties of Averrhoa carambola L.: A Review. Front Pharmacol 2021; 12:699899. [PMID: 34475822 PMCID: PMC8407000 DOI: 10.3389/fphar.2021.699899] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 07/02/2021] [Indexed: 11/25/2022] Open
Abstract
Averrhoa carambola L. (star fruit) is an edible fruit that is extensively cultivated in southern China, Southeast Asia, India, and northern South America. It has a sweet and juicy taste and is frequently used in fruit salads and fruit platters, as a garnish in cocktail drinks and beverages, or squeezed into juice and served as a beverage. Traditionally, it has been used for treating diabetes and diabetic nephropathy, arthralgia, vomiting, lithangiuria, coughing, hangovers, and chronic paroxysmal headache for thousands of years. Currently, approximately 132 compounds have been isolated from A. carambola. Among them, flavonoids, benzoquinone, and their glycosides have been considered as biologically active substances, which are responsible for various biological activities. Pharmacological studies have revealed that crude extracts or monomeric compounds from A. carambola exhibit multiple bioactivities, such as anti-oxidant, anti-hyperglycemic, anti-obesity, anti-hyperlipidemic, anti-tumor, anti-inflammatory, hepatoprotective, cardioprotective, anti-hypertensive, neuroprotective, and others. Thus, A. carambola is a valuable treatment in Chinese medicine with therapeutic potential for multiple diseases, especially diabetes and diabetes-related diseases. Even though it is a very promising candidate in the development of functional food and the pharmaceutical industry, reports on its bioactivities have only been conducted in vivo and in vitro and there is a gap in research regarding clinical settings and safety. This review therefore provides a comprehensive and systematic overview of current progress on botany, ethnopharmacology, phytochemistry, pharmacology, and toxicity of A. carambola, providing a valuable reference for further developments and applications of A. carambola in the pharmaceutical industry and functional food.
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Affiliation(s)
- Fei Luan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lixia Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ziqin Lei
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiyu Jia
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Junbo Zou
- Department of Pharmacology, College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Yan Yang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Xirui He
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Nan Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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16
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Zirbes C, Jones A, Manzel K, Denburg N, Barrash J. Assessing the Effects of Healthy and Neuropathological Aging on Personality with the Iowa Scales of Personality Change. Dev Neuropsychol 2021; 46:393-408. [PMID: 34283684 DOI: 10.1080/87565641.2021.1956500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Personality changes in older adults with brain disease may be confounded by effects of normal aging. In this cross-sectional study, ratings with the Iowa Scales of Personality Change for 62 healthy older adults (OA-H, aged 60+) were compared to matched older adults with brain diseases (OA-BD). OA-H did not show any significant personality changes from middle age to older adulthood. However, between 10% and 20% of OA-H developed a disturbance in Lack of Stamina, Inflexibility, Lability, and Lack of Insight. Otherwise, the pattern of findings suggesting normal aging effects on personality disturbances in clinical groups are generally minimal.
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Affiliation(s)
- Christian Zirbes
- Department of Psychological and Brain Sciences, University of Iowa, Iowa City, United States
| | - Andrew Jones
- Department of Computer Science, Princeton University, Princeton, United States
| | - Kenneth Manzel
- Department of Neurology, University of Iowa, Iowa City, United States
| | - Natalie Denburg
- Departments of Neurology and Psychological and Brain Sciences, University of Iowa, Iowa City, United States
| | - Joseph Barrash
- Departments of Neurology and Psychological and Brain Sciences, University of Iowa, Iowa City, United States
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17
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Bränsvik V, Granvik E, Minthon L, Nordström P, Nägga K. Mortality in patients with behavioural and psychological symptoms of dementia: a registry-based study. Aging Ment Health 2021; 25:1101-1109. [PMID: 32067466 DOI: 10.1080/13607863.2020.1727848] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Behavioural and psychological symptoms of dementia (BPSD) are common in patients with dementia. In the elderly population, comorbidities frequently coexist with dementia and mortality in dementia is high. The aim of this study was to investigate the impact of BPSD on mortality in severe dementia. METHODS This study of 11,448 individuals was based on linked information from the Swedish BPSD registry, the National Patient Register and the Cause of Death register. BPSD was assessed with the Neuropsychiatric Inventory (NPI). Cox proportional hazards regressions were performed for survival analysis. To study different degrees of BPSD, data was categorized into groups: no (NPI, 0 points), mild (NPI, 1-3 points on ≥1 item), moderate (NPI, 4-8 points on ≥1 item) and severe (NPI, 9-12 points on ≥1 item) BPSD based on the highest score on any of the BPSD assessed (NPI items). RESULTS The presence of moderate or severe BPSD was associated with a stepwise increased risk of mortality (hazard ratio (HR), 1.31; 95% confidence interval (CI), 1.08-1.60 and HR 1.74; 95% CI 1.44-2.12, respectively) compared with individuals with no BPSD. In addition, there was an association between total NPI score and mortality (HR 1.01; 95% CI 1.007-1.010). The results remained significant after multivariable adjustment for age, sex, dementia diagnosis, medication, previous myocardial infarction, hip fracture and stroke. CONCLUSIONS The results show a stepwise increase in mortality risk with increased BPSD, highlighting the importance of adequate management of BPSD to reduce mortality in dementia.
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Affiliation(s)
- Vanja Bränsvik
- Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Eva Granvik
- Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Lennart Minthon
- Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.,Memory Clinic, Skåne University Hospital, Malmö, Sweden
| | - Peter Nordström
- Department of Community Medicine and Rehabilitation, Geriatrics, Umeå University, Umeå, Sweden
| | - Katarina Nägga
- Clinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.,Department of Acute Internal Medicine and Geriatrics and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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18
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McCann SJH. Relation of state Alzheimer’s prevalence to state resident Big Five personality in the USA. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-019-00181-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Saadi JP, Carr E, Fleischmann M, Murray E, Head J, Steptoe A, Hackett RA, Xue B, Cadar D. The role of loneliness in the development of depressive symptoms among partnered dementia caregivers: Evidence from the English Longitudinal Study of Aging. Eur Psychiatry 2021; 64:e28. [PMID: 33766187 PMCID: PMC8080187 DOI: 10.1192/j.eurpsy.2021.20] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Depressive symptoms are highly prevalent among partnered dementia caregivers, but the mechanisms are unclear. This study examined the mediating role of loneliness in the association between dementia and other types of care on subsequent depressive symptoms. Methods Prospective data from partnered caregivers were drawn from the English Longitudinal Study of Aging. The sample consisted of 4,672 partnered adults aged 50–70 living in England and Wales, followed up between 2006–2007 and 2014–2015. Caregiving was assessed across waves 3 (2006–2007), 4 (2008–2009), and 5 (2010–2011), loneliness at wave 6 (2012–2013), and subsequent depressive symptoms at wave 7 (2014–15). Multivariable logistic regression models were used to assess the association between caregiving for dementia and depressive symptoms compared to caregiving for other illnesses (e.g., diabetes, coronary heart disease (CHD), cancer, and stroke). Binary mediation analysis was used to estimate the indirect effects of caregiving on depressive symptoms via loneliness. Results Care for a partner with dementia was associated with higher odds of depressive symptoms at follow-up compared to those not caring for a partner at all (odds ratio [OR] = 2.6, 95% confidence intervals [CI]: 1.4, 5.1). This association was partially mediated by loneliness (34%). Care for a partner with other conditions was also associated with higher odds of depressive symptoms compared to non-caregiving partners (OR = 1.7, 95% CI: 1.2, 2.5), but there was no evidence of an indirect pathway via loneliness. Conclusion Loneliness represents an important contributor to the relationship between dementia caregiving and subsequent depressive symptoms; therefore, interventions to reduce loneliness among partnered dementia caregivers should be considered.
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Affiliation(s)
- J P Saadi
- Department of Behavioural Science and Health, University College London, London, United Kingdom
| | - E Carr
- Department of Epidemiology and Public Health, University College London, London, United Kingdom.,Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - M Fleischmann
- Faculty of Science, Methodology and Applied Biostatistics, University of Amsterdam, Amsterdam, The Netherlands
| | - E Murray
- Department of Epidemiology and Public Health, University College London, London, United Kingdom
| | - J Head
- Department of Epidemiology and Public Health, University College London, London, United Kingdom
| | - A Steptoe
- Department of Behavioural Science and Health, University College London, London, United Kingdom.,Department of Epidemiology and Public Health, University College London, London, United Kingdom
| | - R A Hackett
- Department of Behavioural Science and Health, University College London, London, United Kingdom.,Department of Psychology, King's College London, London, United Kingdom
| | - B Xue
- Department of Epidemiology and Public Health, University College London, London, United Kingdom
| | - D Cadar
- Department of Behavioural Science and Health, University College London, London, United Kingdom
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20
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Zufferey V, Gunten AV, Kherif F. Interactions between Personality, Depression, Anxiety and Cognition to Understand Early Stage of Alzheimer's Disease. Curr Top Med Chem 2021; 20:782-791. [PMID: 32066361 DOI: 10.2174/1568026620666200211110545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 11/25/2019] [Accepted: 12/06/2019] [Indexed: 01/18/2023]
Abstract
The multifaceted nature of Alzheimer's disease (AD) and Mild cognitive impairment (MCI) can lead to wide inter-individual differences in disease manifestation in terms of brain pathology and cognition. The lack of understanding of phenotypic diversity in AD arises from a difficulty in understanding the integration of different levels of network organization (i.e. genes, neurons, synapses, anatomical regions, functions) and in inclusion of other information such as neuropsychiatric characteristics, personal history, information regarding general health or subjective cognitive complaints in a coherent model. Non-cognitive factors, such as personality traits and behavioral and psychiatric symptoms, can be informative markers of early disease stage. It is known that personality can affect cognition and behavioral symptoms. The aim of the paper is to review the different types of interactions existing between personality, depression/anxiety, and cognition and cognitive disorders at behavioral and brain/genetic levels.
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Affiliation(s)
- Valérie Zufferey
- Laboratoire de Recherche en Neuroimagerie (LREN), Departement des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois, Universite de Lausanne, 1011 Lausanne, Switzerland.,Service Universitaire de Psychiatrie de l'Age Avance (SUPAA), Centre Hospitalier Universitaire Vaudois, 1008 Prilly-Lausanne, Switzerland.,Ecole Polytechnique Fédérale de Lausanne (EPFL Valais), Clinique Romande de Réadaptation, 1951 Sion, Switzerland
| | - Armin von Gunten
- Service Universitaire de Psychiatrie de l'Age Avance (SUPAA), Centre Hospitalier Universitaire Vaudois, 1008 Prilly-Lausanne, Switzerland
| | - Ferath Kherif
- Laboratoire de Recherche en Neuroimagerie (LREN), Departement des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois, Universite de Lausanne, 1011 Lausanne, Switzerland
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21
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Czapka EA, Sagbakken M. Challenges related to providing care for parents with dementia across borders: A qualitative study on transnational carers in Oslo. J Aging Stud 2020; 55:100893. [PMID: 33272459 DOI: 10.1016/j.jaging.2020.100893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 09/05/2020] [Accepted: 09/28/2020] [Indexed: 01/02/2023]
Abstract
Migration requires people to re-define their caring roles, develop new caring strategies and negotiate the scope of care with the family in the country of origin. The main aim of this paper is to identify and describe challenges related to transnational care provided for people with dementia. Transnational caring itself poses many challenges for families but caring for a person living with dementia can be especially difficult. The qualitative data presented in this article was collected in 2018 as part of a larger study focusing on understandings, experiences and responses to age-related cognitive impairment among families with minority ethnic backgrounds. The data includes seven semi-structured in-depth interviews with migrants in Oslo who were engaged in transnational caring activities for their parents living with dementia. The participants in our study experienced numerous challenges related to providing care across borders to their parents. Some of the challenges were typical for transnational caring and were associated with care regimes in the countries of parents' and participants' residence, motives for providing care, participants' socio-economic situation and family relations. The other challenges were due to specific care needs of people living with dementia.
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Affiliation(s)
- Elżbieta Anna Czapka
- Faculty of Health Sciences, Department of Nursing and Health Promotion, Oslo Metropolitan University, Pilestredet 32, 0130 Oslo, Norway.
| | - Mette Sagbakken
- Faculty of Health Sciences, Department of Nursing and Health Promotion, Oslo Metropolitan University, Pilestredet 32, 0130 Oslo, Norway.
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Abstract
Objectives: Problems in subjective executive function, the perceived cognitive control of mental processes for goal-directed behavior, may indicate cognitive impairment in older adulthood. Although, previous studies highlight the importance of personality on objective cognitive performance, no studies clarify their role with subjective executive function. To inform methods of early identification of cognitive impairment, this study explored how temperament and personality traits account for problems in subjective executive function.Method: The current project examined the associations between temperament and personality on subjective executive function across two samples of community-dwelling older adults (65+ years, n1 = 25, n2 = 50). Both studies measured subjective executive function (Behavioral Rating Inventory of Executive Function-Adult) and separately administered scales on temperament (Adult Temperament Questionnaire) and personality (Big Five Inventory).Results: Concerning temperament, older adults higher in negative affect endorsed greater difficulty in subjective executive function. Regarding personality traits, older adults with higher neuroticism and lower conscientiousness reported higher difficulty in subjective executive function.Conclusion: Findings enhance our understanding of subtle cognitive changes and may aid in early detection. In particular, distressful inclinations were associated with more reported problems in executive function whereas problem-solving tendencies were inversely related. Future work should examine if enhanced negativity coupled with analytical disengagement predicts problems in subjective executive function over time.
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Affiliation(s)
- Tyler Bell
- College of Nursing, Pennsylvania State University
| | - Nikki Hill
- College of Nursing, Pennsylvania State University
| | - Despina Stavrinos
- Department of Psychology, University of Alabama at Birmingham,Corresponding author: Physical address: 916 Building, 916 19th Street South, Birmingham AL, 35294-2100, , Phone: 205.934.7891, Fax: 205.934.2295
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23
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Li J, Li D, Zhou H, Wu G, He Z, Liao W, Li Y, Zhi Y. MicroRNA-338-5p alleviates neuronal apoptosis via directly targeting BCL2L11 in APP/PS1 mice. Aging (Albany NY) 2020; 12:20728-20742. [PMID: 33087587 PMCID: PMC7655176 DOI: 10.18632/aging.104005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/01/2020] [Indexed: 12/30/2022]
Abstract
MicroRNAs have become pivotal modulators in the pathogenesis of Alzheimer’s disease. MiR-338-5p is associated with neuronal differentiation and neurogenesis, and expressed aberrantly in patients with cognitive dysfunction. However, its role and potential mechanism involved in Alzheimer’s disease remain to be elucidated. Herein, we showed that the expression of miR-338-5p decreased in APP/PS1 mice, accompanied by the elevation in the expression level of amyloid β, which indicated a reverse relationship between Alzheimer’s disease progression and miR-338-5p. In addition, lentiviral overexpression of miR-338-5p through intrahippocampal injection mitigated the amyloid plaque deposition and cognitive dysfunction in APP/PS1 mice, suggesting a protecting role of miR-338-5p against the development of Alzheimer’s disease. Moreover, miR-338-5p decelerated apoptotic loss of neurons in APP/PS1 mice. MiR-338-5p decreased neuronal apoptosis in vitro induced by amyloid β accumulation, which was attributed to the negative regulation of BCL2L11 by miR-338-5p, since the restoration of BCL2L11 eliminated the protective role of miR-338-5p against neuronal apoptosis. Taken together, all of these results may indicate miR-338-5p as an innovative modulator in the pathogenesis of Alzheimer’s disease, and also suggest that the protective effect of miR-338-5p on neuronal apoptosis may underlie its beneficial effect on APP/PS1 mice.
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Affiliation(s)
- Junhua Li
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Laboratory of RNA and Major Diseases of Brain and Hearts, Sun Yat-sen University, Guangzhou 510120, China.,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Danhua Li
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Laboratory of RNA and Major Diseases of Brain and Hearts, Sun Yat-sen University, Guangzhou 510120, China
| | - Huatao Zhou
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Laboratory of RNA and Major Diseases of Brain and Hearts, Sun Yat-sen University, Guangzhou 510120, China
| | - Guiyun Wu
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Laboratory of RNA and Major Diseases of Brain and Hearts, Sun Yat-sen University, Guangzhou 510120, China
| | - Zhijie He
- Department of Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Wenhua Liao
- Department of Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Yujuan Li
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Laboratory of RNA and Major Diseases of Brain and Hearts, Sun Yat-sen University, Guangzhou 510120, China.,Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yaowei Zhi
- Department of Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Personality as a Resource for Labor Market Participation among Individuals with Chronic Health Conditions. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176240. [PMID: 32867344 PMCID: PMC7504339 DOI: 10.3390/ijerph17176240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 01/23/2023]
Abstract
Background: The link between personality traits and employment status in individuals with chronic health conditions (CHCs) is largely unexplored. In this study, we examined this association among 21,173 individuals with CHCs and whether this association differs between individuals suffering from a heart disease, depression, anxiety, cancer, chronic obstructive pulmonary disease, musculoskeletal disease (MSD) and type 2 diabetes mellitus (T2DM). Methods: This study was conducted using baseline data from the Lifelines Cohort Study. Employment status and the presence of CHCs were determined by questionnaire data. The Revised Neuroticism-Extroversion-Openness Personality Inventory (NEO-PI-R) was used to measure eight personality facet traits. We conducted disease-generic and disease-specific logistic regression analyses. Results: Workers with higher scores on self-consciousness (OR: 1.02; 95% CI: 1.01-1.02), impulsivity (1.03; 1.02-1.04), excitement seeking (1.02; 1.01-1.02), competence (1.08; 1.07-1.10) and self-discipline (1.04; 1.03-1.05) were more often employed. Adults with higher scores on anger-hostility (0.97; 0.97-0.98), vulnerability (0.98; 0.97-0.99), and deliberation (0.96; 0.95-0.97) were least often employed. Personality facets were associated strongest with employment status among individuals suffering from MSD and weakest in individuals with T2DM. Conclusions: Personality might be a key resource to continue working despite having a CHC. This may be relevant for the development of targeted personality-focused interventions.
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Pocnet C, Popp J, Jopp D. The power of personality in successful ageing: a comprehensive review of larger quantitative studies. Eur J Ageing 2020; 18:269-285. [PMID: 34220406 DOI: 10.1007/s10433-020-00575-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
In this paper, we highlighted links between personality traits and successful ageing through a systematic review of recent empirical studies. Particularly, we addressed the question of whether personality traits are related to successful ageing and, if so, why and how? Answers to this question provided, for example, arguments that supported personality's role in planning an individual's future based on self-knowledge, thereby contributing to a sense of identity throughout their life. Then, considering longitudinal studies, we examined whether personality is stable over one's life course, or does it change and, if so, why and under what conditions? Answers to this question gave substance to the idea that a stable personality allows for continuous and consistent development. In addition, certain personality changes are likely to allow an individual to develop the resilience to better adapt to life's challenges. Therefore, the arguments brought by these two questions can help clarify the modulating role of personality for successful ageing via health and well-being outcomes. These insights may contribute to the development of new prevention approaches, more focused on inter- and intraindividual differences, to promote successful ageing.
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Affiliation(s)
- Cornelia Pocnet
- Department of Psychiatry, University Hospital Service of Old Age Psychiatry, CHUV, Lausanne, Switzerland
- Geriatric Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | - Julius Popp
- Department of Psychiatry, University Hospital Service of Old Age Psychiatry, CHUV, Lausanne, Switzerland
- Department of Geriatric Psychiatry, Centre for Gerontopsychiatric Medicine, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Daniela Jopp
- Institute of Psychology, University of Lausanne, Lausanne, Switzerland
- Swiss National Centre of Competence in Research LIVES (NCCRs), University of Lausanne, Lausanne, Switzerland
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Aschenbrenner AJ, Petros J, McDade E, Wang G, Balota DA, Benzinger TLS, Cruchaga C, Goate A, Xiong C, Perrin R, Fagan AM, Graff‐Radford N, Ghetti B, Levin J, Weidinger E, Schofield P, Gräber S, Lee J, Chhatwal JP, Morris JC, Bateman R, Hassenstab J. Relationships between big-five personality factors and Alzheimer's disease pathology in autosomal dominant Alzheimer's disease. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2020; 12:e12038. [PMID: 32587883 PMCID: PMC7311802 DOI: 10.1002/dad2.12038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/06/2020] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Changes in personality characteristics are associated with the onset of symptoms in Alzheimer's disease (AD) and may even precede clinical diagnosis. However, personality changes caused by disease progression can be difficult to separate from changes that occur with normal aging. The Dominantly Inherited Alzheimer Network (DIAN) provides a unique cohort in which to relate measures of personality traits to in vivo markers of disease in a much younger sample than in typical late onset AD. METHODS Personality traits measured with the International Personality Item Pool at baseline from DIAN participants were analyzed as a function of estimated years to onset of clinical symptoms and well-established AD biomarkers. RESULTS Both neuroticism and conscientiousness were correlated with years to symptom onset and markers of tau pathology in the cerebrospinal fluid. Self-reported conscientiousness and both neuroticism and conscientiousness ratings from a collateral source were correlated with longitudinal rates of cognitive decline such that participants who were rated as higher on neuroticism and lower on conscientiousness exhibited accelerated rates of cognitive decline. DISCUSSION Personality traits are correlated with the accumulation of AD pathology and time to symptom onset, suggesting that AD progression can influence an individual's personality characteristics. Together these findings suggest that measuring neuroticism and conscientiousness may hold utility in tracking disease progression in AD.
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Affiliation(s)
- Andrew J. Aschenbrenner
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Jennifer Petros
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Eric McDade
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Guoqiao Wang
- Division of BiostatisticsWashington University School of MedicineSt. LouisMissouriUSA
| | - David A. Balota
- Department of Psychological and Brain SciencesWashington University in St. LouisSt. LouisMissouriUSA
| | - Tammie LS Benzinger
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
- Department of RadiologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Carlos Cruchaga
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
- Department of PsychiatryWashington University School of MedicineSt. LouisMissouriUSA
| | - Alison Goate
- Department of NeuroscienceIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Chengjie Xiong
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
- Division of BiostatisticsWashington University School of MedicineSt. LouisMissouriUSA
| | - Richard Perrin
- Division of NeuropathologyDepartment of Pathology & ImmunologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Anne M. Fagan
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | | | - Bernardino Ghetti
- Department of Pathology and Laboratory MedicineIndiana University School of MedicineIndianapolisIndianaUSA
| | - Johannes Levin
- German Center for Neurodegenerative DiseasesMunichGermany
- Department of NeurologyLudwig‐Maximilians‐Universität MünchenMunichGermany
| | - Endy Weidinger
- German Center for Neurodegenerative DiseasesMunichGermany
- Department of NeurologyLudwig‐Maximilians‐Universität MünchenMunichGermany
| | - Peter Schofield
- Neuroscience Research AustraliaSydneyNew South WalesAustralia
- School of Medical SciencesUniversity of New South WalesSydneyNew South WalesAustralia
| | - Susanne Gräber
- German Center for Neurodegenerative Diseases (DZNE)TübingenGermany
| | - Jae‐Hong Lee
- Department of NeurologyUniversity of Ulsan College of MedicineAsan Medical CenterSeoulKorea
| | | | - John C. Morris
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Randall Bateman
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | - Jason Hassenstab
- Charles F. and Joanne Knight Alzheimer Disease Research CenterDepartment of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
- Department of Psychological and Brain SciencesWashington University in St. LouisSt. LouisMissouriUSA
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Personality factors and cerebral glucose metabolism in community-dwelling older adults. Brain Struct Funct 2020; 225:1511-1522. [PMID: 32342225 DOI: 10.1007/s00429-020-02071-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 04/11/2020] [Indexed: 10/24/2022]
Abstract
Personality factors have been associated with Alzheimer's disease (AD) and dementia, but they have not been examined against markers of regional brain glucose metabolism (a primary measure of brain functioning) in older adults without clinically diagnosed cognitive impairment. The relationship between personality factors derived from the five-factor model and cerebral glucose metabolism determined using positron emission tomography (PET) with [18F]-2-fluoro-2-deoxy-D-glucose (18F-FDG-PET) was examined in a cohort of 237 non-demented, community-dwelling older adults aged 60-89 years (M ± SD = 73.76 ± 6.73). Higher neuroticism and lower scores on extraversion and conscientiousness were significantly associated with decreased glucose metabolism in brain regions typically affected by AD neuropathological processes, including the hippocampus and entorhinal cortex. Furthermore, while there were significant differences between apolipoprotein E (APOE) ε4 allele carriers and non-carriers on 18F-FDG-PET results in the neocortex and other brain regions (p < 0.05), there was no significant difference between carriers and non-carriers on personality factors and no significant interactions were found between APOE ε4 carriage and personality factors on brain glucose metabolism. In conclusion, we found significant relationships between personality factors and glucose metabolism in neural regions more susceptible to AD neuropathology in older adults without clinically significant cognitive impairment. These findings support the need for longitudinal research into the potential mechanisms underlying the relationship between personality and dementia risk, including measurement of change in other AD biomarkers (amyloid and tau imaging) and how they correspond to change in personality factors. Future research is also warranted to determine whether timely psychological interventions aimed at personality facets (specific aspects or characteristics of personality factors) can affect imaging or other biomarkers of AD resulting in delay or ideally preventing the onset of the cognitive impairment.
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Szücs A, Szanto K, Wright AG, Dombrovski AY. Personality of late- and early-onset elderly suicide attempters. Int J Geriatr Psychiatry 2020; 35:384-395. [PMID: 31894591 PMCID: PMC7291767 DOI: 10.1002/gps.5254] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 12/21/2019] [Indexed: 11/11/2022]
Abstract
OBJECTIVES While suicidal behavior often manifests in adolescence and early adulthood, some people first attempt suicide in late life, often with remarkable lethal intent and determination. Given these individuals' more adaptive functioning earlier in life, they may possess traits that hinder adjustment to aging, such as high conscientiousness, rather than impulsive-aggressive traits associated with suicidal behavior in younger adults. METHODS A cross-sectional case-control study was conducted in older adults aged ≥50 (mean: 65), divided into early- and late-onset attempters (age at first attempt ≤ or >50, mean: 31 vs 61), suicide ideators as well as non-suicidal depressed and healthy controls. Personality was assessed in terms of the five-factor model (FFM, n = 200) and five DSM personality disorders analyzed on the trait level as continuous scores (PDs, n = 160). Given our starting hypothesis about late-onset attempters, the FFM dimension conscientiousness was further tested on the subcomponent level. RESULTS All clinical groups displayed more maladaptive profiles than healthy subjects. Compared to depressed controls, higher neuroticism, and borderline traits characterized both suicide ideators and early-onset attempters, while only early-onset attempters further displayed lower extraversion and higher antisocial traits. Late-onset attempters were similar to depressed controls on most measures, but scored higher than them on orderliness, a conscientiousness subcomponent. CONCLUSIONS While neuroticism, introversion, and cluster B traits are prominent in early-onset suicidal behavior, late-onset cases generally lack these features. In contrast, higher levels of orderliness in late-onset suicidal behavior are compatible with the age-selective maladjustment hypothesis. Key points Personality of elderly attempters differed between those with early- and late-onset first attempts. Early-onset attempters possessed personality traits generally found in younger suicidal populations (high neuroticism, low extraversion, antisocial, and borderline PD traits), supporting that constitutional suicide risk factors persist into late life in some individuals. Late-onset suicide attempters had higher levels of orderliness than non-suicidal depressed participants, suggesting that this generally adaptive trait may facilitate suicidal behavior in a subset of depressed elderly.
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Affiliation(s)
- Anna Szücs
- Dept. of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Dept. of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Katalin Szanto
- Dept. of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Aidan G.C. Wright
- Dept. of Psychology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Henriques-Calado J, Duarte-Silva ME. The predictive power of personality through psychopathology in Alzheimer's disease: a control study of self-report and baseline retrospective assessment. PSYCHOL HEALTH MED 2020; 25:1144-1152. [PMID: 32101020 DOI: 10.1080/13548506.2020.1734218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Although there is a growing body of literature on the Alzheimer's disease (AD) personality changes, its relationships with personality disorders are still largely understudied. The relationships between the Five-Factor Model and the Axis II personality disorders were explored in the context of current and baseline personality in AD. The study was conducted with four groups who were administered the NEO-FFI and the PDQ-4+, mainly in interview sessions. Self-report measurement: AD Group, 40 female participants (M = 81.48 years); Control Group, 47 female participants from the population at large (M = 76.81 years). Baseline retrospective measurement: AD Group Informants (n = 40); Control Group Informants (n = 47). Three logistic regressions were computed. The baseline Neuroticism moderates the Neuroticism in the current clinical state. High Neuroticism, low Openness, high Cluster B, and baseline high Neuroticism, predicted the presence of AD diagnosis, accounting for 85% of the variance. In order to increase sensitivity towards an earlier diagnosis in AD, future empirically-based research should take into account an assessment set of structural personality variables.
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Affiliation(s)
- Joana Henriques-Calado
- Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade , Lisboa, 1649-013, Portugal.,CICPSI, Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade , Lisboa, 1649-013, Portugal
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30
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Segerstrom SC. Personality and Incident Alzheimer's Disease: Theory, Evidence, and Future Directions. J Gerontol B Psychol Sci Soc Sci 2020; 75:513-521. [PMID: 29846724 PMCID: PMC7768711 DOI: 10.1093/geronb/gby063] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Indexed: 01/12/2023] Open
Abstract
Personality, especially the dimensions of neuroticism and conscientiousness, has prospectively predicted the risk of incident Alzheimer's disease (AD). Such a relationship could be explained by personality and AD risk having a common cause such as a gene; by personality creating a predisposition for AD through health behavior or inflammation; by personality exerting a pathoplastic effect on the cognitive consequences of neuropathology; or by AD and personality change existing on a disease spectrum that begins up to decades before diagnosis. Using the 5-dimensional taxonomy of personality, the present review describes how these models might arise, the evidence for each, and how they might be distinguished from one another empirically. At present, the evidence is sparse but tends to suggest predisposition and/or pathoplastic relationships. Future studies using noninvasive assessment of neuropathology are needed to distinguish these 2 possibilities.
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Chapman BP, Huang A, Peters K, Horner E, Manly J, Bennett DA, Lapham S. Association Between High School Personality Phenotype and Dementia 54 Years Later in Results From a National US Sample. JAMA Psychiatry 2020; 77:148-154. [PMID: 31617877 PMCID: PMC6802373 DOI: 10.1001/jamapsychiatry.2019.3120] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
IMPORTANCE Personality phenotype has been associated with subsequent dementia in studies of older adults. However, neuropathologic changes often precede cognitive symptoms by many years and may affect personality itself. Therefore, it is unclear whether supposed dementia-prone personality profiles (high neuroticism and low conscientiousness) are true risk factors or merely reflections of preexisting disease. OBJECTIVES To examine whether personality during adolescence-a time when preclinical dementia pathology is unlikely to be present-confers risk of dementia in later life and to test whether associations could be accounted for by health factors in adolescence or differed across socioeconomic status (SES). DESIGN, SETTING, AND PARTICIPANTS Cohort study in the United States. Participants were members of Project Talent, a national sample of high school students in 1960. Individuals were identified who received a dementia-associated International Classification of Diseases, Ninth Revision (ICD-9) diagnosis code during any year between 2011 and 2013. The dates of our analysis were March 2018 to May 2019. EXPOSURES Ten personality traits were measured by the 150-item Project Talent Personality Inventory. Socioeconomic status was measured by a composite based on parental educational level, income, occupation, and property ownership. Participants were also surveyed on demographic factors and height and weight. MAIN OUTCOMES AND MEASURES Medicare records were collected, with dementia diagnoses in the period of 2011 to 2013 classified according to the US Centers for Medicare & Medicaid Services ICD-9-based algorithm. Cox proportional hazards regression models estimated the relative risk of dementia based on the 10 personality traits, testing interactions with SES and adjusting for demographic confounders. RESULTS The sample of 82 232 participants was 50.1% female, with a mean (SD) age of 15.8 (1.7) years at baseline and 69.5 (1.2) years at follow-up. Lower risk of dementia was associated with higher levels of vigor (hazard ratio for 1 SD, 0.93; 95% CI, 0.90-0.97; P < .001). Calm and maturity showed protective associations with later dementia that increased with SES. At 1 SD of SES, calm showed a hazard ratio of 0.89 (95% CI, 0.84-0.95; P < .001 for the interaction) and maturity showed a hazard ratio of 0.90 (95% CI, 0.85-0.96; P = .001 for the interaction). CONCLUSIONS AND RELEVANCE This study's findings suggest that the adolescent personality traits associated with later-life dementia are similar to those observed in studies of older persons. Moreover, the reduction in dementia risk associated with a calm and mature adolescent phenotype may be greater at higher levels of SES. Personality phenotype may be a true independent risk factor for dementia by age 70 years, preceding it by almost 5 decades and interacting with adolescent socioeconomic conditions.
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Affiliation(s)
- Benjamin P. Chapman
- Department of Psychiatry, University of Rochester Medical Center, Rochester, New York,Department of Public Health Sciences, University of Rochester Medical Center, Rochester, New York
| | - Alison Huang
- American Institutes for Research, Washington, DC
| | - Kelly Peters
- American Institutes for Research, Washington, DC
| | | | - Jennifer Manly
- Department of Neurology, Columbia University Medical Center, New York, New York
| | - David A. Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
| | - Susan Lapham
- American Institutes for Research, Washington, DC
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Henriques-Calado J, Duarte-Silva ME. Personality disorders characterized by anxiety predict Alzheimer's disease in women: A case-control studies. THE JOURNAL OF GENERAL PSYCHOLOGY 2019; 147:414-431. [PMID: 31833453 DOI: 10.1080/00221309.2019.1697637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This research is geared toward the evaluation of current and pre-morbid personality psychopathology in Alzheimer's disease (AD). The study was conducted with four groups who were administered the Personality Diagnostic Questionnaire-4+, mainly in the form of individual interviews. Current measurement: AD Group, 44 female participants (M = 81.36 years); Control Group, 80 female participants from the population at large (M = 75.84 years). Pre-morbid measurement: AD Group Informants (n = 40); Control Group Informants (n = 42). The incidence of all clusters in clinical state are significant, and Cluster B incidence in pre-morbidity is evidenced. Cluster C is highlighted throughout the life course as a predictor. Logistic regression analyses showed that schizotypical, narcissistic, avoidant, obsessive-compulsive, pre-morbid schizotypical, pre-morbid histrionic, and pre-morbid obsessive-compulsive personality disorders, predicted the presence of AD diagnosis, accounting for 49% of the variance. These findings are relevant to research relating personality and psychopathology in Alzheimer's disease.
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Villalba AC, García J, Ramos C, Cuastumal AR, Aguillón D, Aguirre-Acevedo DC, Madrigal L, Lopera F. Mental Disorders in Young Adults from Families with the Presenilin-1 Gene Mutation E280A in the Preclinical Stage of Alzheimer's Disease. J Alzheimers Dis Rep 2019; 3:241-250. [PMID: 31754656 PMCID: PMC6839534 DOI: 10.3233/adr-190139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2019] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND There are forms of Alzheimer's disease (AD) that have an autosomal dominant inheritance pattern; one of them is caused by the E280A mutation in the gene that codes for Presenilin-1 (PSEN1). Studying families of people with this mutation allows the evaluation of characteristics of the subjects before cognitive decline begins. OBJECTIVE To determine whether having the mutation E280A in PSEN1 increases the risk of presenting mental disorders in adults under 30 years old who are in the preclinical stage of AD and may be eligible for primary prevention studies of AD. METHODS A psychiatric evaluation was made to 120 people belonging to families with a history of early onset AD. Of these, 62 carried the E280A mutation in PSEN1. The occurrence of mental disorders between carriers and non-carriers of the mutation was compared. RESULTS No statistically significant differences were found in the frequency of any mental disorder between the group of carriers and non-carriers of the mutation (Hazard Ratio: 0.80, 95% CI 0.49 to 1.31); nor were differences observed when evaluating specific disorders. CONCLUSION The E280A mutation does not increase the risk of mental disorders before the age of 30 in the relatives of people affected by familial AD. Studies with larger sample sizes are required to assess the risk of low incidence mental disorders.
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Affiliation(s)
- Arvey Camilo Villalba
- Department of Psychiatry, Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Jenny García
- Department of Psychiatry, Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
- Academic Group in Clinical Epidemiology (GRAEPIC), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Claudia Ramos
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Amanda Rosario Cuastumal
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - David Aguillón
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Daniel Camilo Aguirre-Acevedo
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
- Medical Research Institute, Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Lucia Madrigal
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Francisco Lopera
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
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Villalba AC, García J, Ramos C, Cuastumal AR, Aguillón D, Aguirre-Acevedo DC, Madrigal L, Lopera F. WITHDRAWN: Mental Disorders in Young Adults from Families with the Presenilin-1 Gene Mutation E280A in the Preclinical Stage of Alzheimer's Disease. J Alzheimers Dis 2019:JAD181013. [PMID: 31381509 DOI: 10.3233/jad-181013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ahead of Print article withdrawn by publisher.
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Affiliation(s)
- Arvey Camilo Villalba
- Department of Psychiatry, Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Jenny García
- Department of Psychiatry, Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
- Academic Group in Clinical Epidemiology (GRAEPIC), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Claudia Ramos
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Amanda Rosario Cuastumal
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - David Aguillón
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Daniel Camilo Aguirre-Acevedo
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
- Medical Research Institute, Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Lucia Madrigal
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
| | - Francisco Lopera
- Neuroscience Group of Antioquia (GNA), Faculty of Medicine of the University of Antioquia, Medellín, Antioquia, Colombia
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Lin X, Xu B, Zhang Z, Yang Y, Liu G, Zhu F, Ren X, Liu J, Li S, Huang X, Yang X. Proteomic analysis reveals the potential neuroprotective effects of tetramethylpyrazine dimer in neuro2a/APPswe cells. RSC Adv 2019; 9:18776-18784. [PMID: 35516848 PMCID: PMC9064821 DOI: 10.1039/c9ra03054a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 05/07/2019] [Indexed: 12/17/2022] Open
Abstract
Alzheimer's disease (AD) is a common neurodegenerative disease characterized by pathological processes, including abnormal amyloid deposits and filament tangles, oxidative stress, neuroinflammation, and neurotrophic insufficiency, leading to chronic and prolonged neuronal loss and cognitive deficits. Tetramethylpyrazine (TMP) is one of the main active components of Ligusticum wallichii, a traditional Chinese medicine widely used for brain related disease. Here, we synthesized the TMP derivative tetramethylpyrazine dimer (DTMP), and evaluated the potential mechanisms underlying its potential neuroprotective effects using the murine neuron-like cells (N2a) transfected with the human "Swedish" mutant amyloid precursor protein (N2aAPP). ELISA results indicated that DTMP reduced the levels of Aβ1-40 and Aβ1-42 in N2aAPP. Then through proteomic analysis we identified a total of 208 differentially expressed proteins in N2aAPP cells compared to the wild-type N2a cells (N2aWT), including 144 increased and 64 decreased proteins. 449 differentially expressed proteins were revealed in N2aAPP cells on DTMP treatment with 69 increased and 380 decreased proteins. Bioinformatic analysis suggested that these proteins are enriched in mitochondrial function, the electronic transmission chain, ATP binding, oxidative phosphorylation, GTPase function, the transcriptional translation process, amino acid metabolism, nucleotide binding and others. Given the vital role of mitochondria in the pathogenesis of AD, we selected the electron transport chain pathway-related molecules to further validate these findings. Western-blot analysis demonstrated that DTMP significantly increased the levels of complex I (NDUAA), complex II (SDHB), complex III (UCRI), complex IV (COX5A) and complex V (ATP5A) in N2aAPP cells. The modulation of dysregulated proteins implicated in AD pathogenesis implies the pharmacological mechanisms of DTMP and its potential as a novel therapeutic choice in AD.
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Affiliation(s)
- Xiaoyi Lin
- College of Pharmaceutical Engineering and Life Sciences, Changzhou University No. 21, Gehu Middle Road, Wujin District Changzhou China 213000 +86 13914325607 +86 13914325607
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention No. 8, Longyuan Road, Nanshan District Shenzhen China 518055 +86 75525508584 +86 75525601914
| | - Benhong Xu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention No. 8, Longyuan Road, Nanshan District Shenzhen China 518055 +86 75525508584 +86 75525601914
| | - Zaijun Zhang
- Institute of New Drug Research and Guangzhou, Key Laboratory of Innovative Chemical Drug Research in Cardio-Cerebrovascular Diseases, Jinan University College of Pharmacy Guangzhou 510632 China
| | - Ying Yang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030 China
| | - Gongping Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030 China
| | - Feiqi Zhu
- Cognitive Impairment Ward of Neurology Department, The 3rd Affiliated Hospital of Shenzhen University China
| | - Xiaohu Ren
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention No. 8, Longyuan Road, Nanshan District Shenzhen China 518055 +86 75525508584 +86 75525601914
| | - Jianjun Liu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention No. 8, Longyuan Road, Nanshan District Shenzhen China 518055 +86 75525508584 +86 75525601914
| | - Shupeng Li
- State Key Laboratory of Oncogenomic, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Shenzhen 518055 China +86 75526032325 +86 75526032325
| | - Xianfeng Huang
- College of Pharmaceutical Engineering and Life Sciences, Changzhou University No. 21, Gehu Middle Road, Wujin District Changzhou China 213000 +86 13914325607 +86 13914325607
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention No. 8, Longyuan Road, Nanshan District Shenzhen China 518055 +86 75525508584 +86 75525601914
| | - Xifei Yang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention No. 8, Longyuan Road, Nanshan District Shenzhen China 518055 +86 75525508584 +86 75525601914
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Novelty processing and memory impairment in Alzheimer's disease: A review. Neurosci Biobehav Rev 2019; 100:237-249. [DOI: 10.1016/j.neubiorev.2019.02.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/24/2018] [Accepted: 02/28/2019] [Indexed: 01/09/2023]
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Escher CM, Sannemann L, Jessen F. Stress and Alzheimer's disease. J Neural Transm (Vienna) 2019; 126:1155-1161. [PMID: 30788601 DOI: 10.1007/s00702-019-01988-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 02/14/2019] [Indexed: 11/29/2022]
Abstract
Alzheimer's disease (AD) is the leading cause of dementia worldwide. Due to demographic change in higher income countries and rising life expectancy in middle- and low-income countries, the prevalence of AD will increase significantly in the coming years. In the search for effective AD prevention, the role of stress in the development of AD has come into focus. There is increasing evidence that chronic exposure to stress is a risk factor for AD and may also adversely affect the course of the disease. In our review, we present the current literature on the association of specific personality traits and the risk of developing AD. We also report on findings on dementia risk in patients with posttraumatic stress disorder. Furthermore, we describe the role of anxiety symptoms in AD and give a brief overview over the biological mechanisms behind the association of stress and AD.
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Affiliation(s)
- Claus M Escher
- Department of Psychiatry, University Cologne, Cologne, Germany.
| | - Lena Sannemann
- Department of Psychiatry, University Cologne, Cologne, Germany
| | - Frank Jessen
- Department of Psychiatry, University Cologne, Cologne, Germany.,German Center for neurodegenerative Diseases (DZNE), Bonn, Germany
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Abstract
The objective of this article is to review and integrate interrelated areas of research on personality and Alzheimer's disease (AD). Prospective studies indicate that individuals who score higher on conscientiousness (more responsible and self-disciplined) and lower on neuroticism (less anxious and vulnerable to stress) have a reduced risk of developing dementia, even in the presence of AD neuropathology. Personality is also related to measures of cognitive performance and cognitive decline, with effect sizes similar to those of other clinical, lifestyle, and behavioral risk factors. These associations are unlikely to be due to reverse causality: Long-term prospective data indicate that there are no changes in personality that are an early sign of the disease during the preclinical phase of AD. With the onset and progression of dementia, however, there are large changes in personality that are reported consistently by caregivers in retrospective studies and are consistent with the clinical criteria for the diagnosis of dementia. The review also discusses potential mechanisms of the observed associations and emphasizes the need for prospective studies to elucidate the interplay of personality traits with AD neuropathology (amyloid and tau biomarkers) in modulating the risk and timing of onset of clinical dementia. The article concludes with the implications of personality research for identifying those at greater risk of AD and the potential of personality-tailored interventions aimed at the prevention and treatment of AD. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Affiliation(s)
| | - Angelina R Sutin
- Department of Behavioral Science and Social Medicine, Florida State University College of Medicine
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D'Iorio A, Garramone F, Piscopo F, Baiano C, Raimo S, Santangelo G. Meta-Analysis of Personality Traits in Alzheimer's Disease: A Comparison with Healthy Subjects. J Alzheimers Dis 2019; 62:773-787. [PMID: 29480186 PMCID: PMC5842787 DOI: 10.3233/jad-170901] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The role of specific personality traits as factor risks of Alzheimer's disease (AD) has been consistently found, whereas personality traits specifically related to AD (after the diagnosis) have not been outlined yet. OBJECTIVE A meta-analysis of published studies was performed to determine whether AD patients have a distinctive personality trait profile compared to healthy subjects (HC), similar to or different from a premorbid personality profile consistently reported in previous studies. METHODS A systematic literature search was performed using PsycInfo (PROQUEST), PubMed, and Scopus. The meta-analysis pooled results from primary studies using Hedges' g unbiased approach. RESULTS The meta-analysis included 10 primary studies and revealed that, when the personality was evaluated by informant-rated measures, AD patients had significantly higher levels of Neuroticism, lower levels of Openness, Agreeableness, Conscientiousness, and Extraversion than HCs. When the personality was evaluated by self-rated measures, the results obtained from informants were confirmed for Neuroticism, Openness, and Extraversion but not for Agreeableness and Conscientiousness where AD patients and HCs achieved similar scores. CONCLUSIONS The meta-analysis revealed that high Neuroticism and low Openness and Extraversion are distinctive personality traits significantly associated with a diagnosis of AD when evaluated both self-rated and informant-rated measures. This personality trait profile is similar to premorbid one, which contributes to development of AD over time. Therefore, our findings indirectly support the idea of specific premorbid personality traits as harbingers of AD.
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Affiliation(s)
- Alfonsina D'Iorio
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Federica Garramone
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Fausta Piscopo
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Chiara Baiano
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Simona Raimo
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Gabriella Santangelo
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
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Gilmour G, Porcelli S, Bertaina-Anglade V, Arce E, Dukart J, Hayen A, Lobo A, Lopez-Anton R, Merlo Pich E, Pemberton DJ, Havenith MN, Glennon JC, Harel BT, Dawson G, Marston H, Kozak R, Serretti A. Relating constructs of attention and working memory to social withdrawal in Alzheimer’s disease and schizophrenia: issues regarding paradigm selection. Neurosci Biobehav Rev 2019; 97:47-69. [DOI: 10.1016/j.neubiorev.2018.09.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 08/29/2018] [Accepted: 09/27/2018] [Indexed: 12/12/2022]
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Islam M, Mazumder M, Schwabe-Warf D, Stephan Y, Sutin AR, Terracciano A. Personality Changes With Dementia From the Informant Perspective: New Data and Meta-Analysis. J Am Med Dir Assoc 2019; 20:131-137. [PMID: 30630729 PMCID: PMC6432780 DOI: 10.1016/j.jamda.2018.11.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/02/2018] [Accepted: 11/03/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To examine changes in personality in individuals with mild cognitive impairment (MCI) or dementia as observed by family members using both new data and a meta-analysis with the published literature. DESIGN Current and retrospective personality assessments of individuals with dementia by family informants. PubMed was searched for studies with a similar design and a forward citation tracking was conducted using Google Scholar in June 2018. Results from a new sample and from published studies were combined in a random effect meta-analysis. SETTING AND PARTICIPANTS Family members of older adults with MCI or dementia. MEASURES The 5 major dimensions (neuroticism, extraversion, openness, agreeableness, and conscientiousness) and facets of personality were assessed with NEO Personality Inventory questionnaires. RESULTS The new sample (n = 50) and meta-analysis (18 samples; n = 542) found consistent shifts in personality from the premorbid to current state in patients with cognitive impairment. The largest changes (>1 standard deviation) were declines in conscientiousness (particularly for the facets of self-discipline and competence) and extraversion (decreased energy and assertiveness), as well as increases in neuroticism (increased vulnerability to stress). The new sample suggested that personality changes were larger in individuals taking cognition-enhancing medications (cholinesterase inhibitors or memantine). More recent studies and those that examined individuals with MCI found smaller effects. CONCLUSIONS AND IMPLICATIONS Consistent with the clinical criteria for the diagnosis of dementia, the new study and meta-analysis found replicable evidence for large changes in personality among individuals with dementia. Future research should examine whether there are different patterns of personality changes across etiologies of dementia to inform differential diagnosis and treatments. Prospective, repeated assessments of personality using both self- and informant-reports are essential to clarify the temporal evolution of personality change across the preclinical, prodromal, and clinical phases of dementia.
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Affiliation(s)
- Maheen Islam
- Florida State University College of Medicine, Tallahassee, FL
| | - Mridul Mazumder
- Florida State University College of Medicine, Tallahassee, FL
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Henriques-Calado J, Duarte-Silva ME, Sousa Ferreira A. Depressive vulnerability in women with Alzheimer's disease: Relationship with personality traits and abnormal personality dimensions. J Affect Disord 2018; 241:182-191. [PMID: 30125822 DOI: 10.1016/j.jad.2018.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 07/18/2018] [Accepted: 08/04/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND This study sought to determine the evaluation of current and pre-morbid depressive vulnerability dimensions in Alzheimer's disease. Sidney Blatt´s personality developmental perspective, the Five-Factor model and Axis II personality disorders were taken as references. METHODS The study was conducted with two groups which were assessed using the Depressive Experiences Questionnaire, the NEO-FFI and the Personality Diagnostic Questionnaire-4+, in the form of individual interview sessions. Current personality measure: Alzheimer's disease Group, consisting of 44 female participants (MAge = 81.36 years); Pre-morbid personality measure: Alzheimer's disease Group Informants (n = 40). RESULTS Self-Criticism personality vulnerability is a general indicator of psychopathology. In pre-morbidity, Neuroticism (β = 0.41), Agreeableness (β = -0.63) and Conscientiousness (β = -0.08) predicted Self-Criticism, explaining 64% of the variance; additionally, Self-Criticism (β = 0.72) and Neediness (β = 2.05) predicted the PDQ-4+ total, explaining 58% of the variance. In terms of current personality, the PDQ-4+ total was predicted by Self-Criticism (β = 0.55), explaining 30% of the variance. LIMITATIONS The small size of the samples, especially since it is difficult to access individuals diagnosed with AD at the onset or in its early stages; measuring personality changes by means of retrospective assessment by proxies may have introduced some memory bias. CONCLUSIONS These findings are relevant to research relating depressive vulnerability to personality traits and psychopathology in Alzheimer's disease.
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Affiliation(s)
- Joana Henriques-Calado
- Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade, 1649-013 Lisboa, Portugal; CICPSI, Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade, 1649-013 Lisboa, Portugal.
| | | | - Ana Sousa Ferreira
- Faculdade de Psicologia, Universidade de Lisboa, Alameda da Universidade, 1649-013 Lisboa, Portugal; Instituto Universitário de Lisboa - Business Research Unit (BRU-IUL), Portugal.
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Deví Bastida J, Jodas Clemente L, Jofre Font S, Arroyo Cardona E. [Premorbid personality as a risk factor in the appearance of psychological and behavioural symptoms of dementia: Systematic review]. Rev Esp Geriatr Gerontol 2018; 54:168-180. [PMID: 30482462 DOI: 10.1016/j.regg.2018.08.006] [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: 12/05/2017] [Revised: 06/14/2018] [Accepted: 08/02/2018] [Indexed: 10/27/2022]
Abstract
The aetiology of behavioural and psychological symptoms of dementia (BPSD) is defined by a diversity of factors, and recent studies suggest that premorbid personality could be a risk factor for BPSD. This study aimed to review studies on the relationship between premorbid personality and BPSD. Studies were identified using PsycInfo, MedLine, and PubMed. The searches combined terms for premorbid personality, dementia and BPSD. Ten studies have been included in this review. Eight out of ten studies show a relationship between premorbid personality and BPSD. Neuroticism is associated with behavioural disturbances and anxiety. Extraversion is associated with wandering. Low agreeableness is associated with affective disturbance and aggression-related behaviours and high agreeableness is associated with wandering. The studies found no congruent results for openness and conscientiousness. In conclusion, premorbid personality may increase the risk of developing BPSD during the course of the disease. Even so, the relationship between personality and BPSD is complex due to multifactorial aetiology.
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Affiliation(s)
- Josep Deví Bastida
- Departamento de Psicología Clínica y de la Salud, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, España; Departament de Benestar i Familia - SISPAP/Grup Mutuam, Residencia y Centro de Día Sant Cugat, Sant Cugat del Vallés, Barcelona, España.
| | - Laia Jodas Clemente
- Asociación Multidisciplinar de Psicogeriatría y Demencias (AMPIDE), Sant Cugat del Vallés, Barcelona, España
| | - Susanna Jofre Font
- Sanitas Mayores Consell de Cent (Sanitas parte de Bupa), Barcelona, España
| | - Enric Arroyo Cardona
- Departament de Benestar i Familia - SISPAP/Grup Mutuam, Residencia y Centro de Día Sant Cugat, Sant Cugat del Vallés, Barcelona, España; Centro de Asistencia Primaria Sant Cugat - Mutua de Terrassa, Sant Cugat del Vallés, Barcelona, España
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Berger-Sieczkowski E, Gruber B, Stögmann E, Lehrner J. Differences regarding the five-factor personality model in patients with subjective cognitive decline and mild cognitive impairment. NEUROPSYCHIATRIE : KLINIK, DIAGNOSTIK, THERAPIE UND REHABILITATION : ORGAN DER GESELLSCHAFT ÖSTERREICHISCHER NERVENÄRZTE UND PSYCHIATER 2018; 33:35-45. [PMID: 30328583 PMCID: PMC6400874 DOI: 10.1007/s40211-018-0292-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 10/01/2018] [Indexed: 01/20/2023]
Abstract
Personality and dementia are connected in different ways. A broad knowledge about personality and prodromal stages of dementia might be helpful to identify dementia as early as possible. Hence, personality differences between three cognitively impaired groups on the basis of patients’ self-assessments of personality traits and connections between personality and cognitive functioning were examined via a cross-sectional study. The sample consisted of cognitively impaired patients (N = 133), aged 50 and older, who came to a memory clinic due to cognitive complaints. The test procedure encompassed a cognitive screening, the Neuropsychological Test Battery Vienna (NTBV), and self-assessment questionnaires such as the Big Five Plus One Persönlichkeitsinventar (B5PO). While patients with subjective cognitive decline (SCD) did not differ from those with non-amnestic mild cognitive impairment (naMCI) concerning the different personality traits, patients with amnestic mild cognitive impairment (aMCI) showed significantly lower scores for extraversion (p < 0.05), openness (p < 0.001), and empathy (p < 0.001) than patients with SCD as well as patients with naMCI. Thus, cognitively impaired groups mainly differ concerning personality traits depending on whether they do show memory decline or not.
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Affiliation(s)
- Evelyn Berger-Sieczkowski
- Department of Neurology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Bernadette Gruber
- Department of Neurology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Elisabeth Stögmann
- Department of Neurology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Johann Lehrner
- Department of Neurology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
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Abstract
Trait stability and maturation are fundamental principles of contemporary personality psychology and have been shown to hold across many cultures. However, it has proven difficult to move beyond these general findings to a detailed account of trait development. There are pervasive and unexplained inconsistencies across studies that may be due to ( a) insufficient attention to measurement error, ( b) subtle but age-sensitive differences in alternative measures of the same trait, or ( c) different perspectives reflected in self-reports and observer ratings. Multiscale, multimethod-and ideally multinational-studies are needed. Several hypotheses have been proposed to account for trait stability and change, but supporting evidence is currently weak or indirect; trait development is a fertile if sometimes frustrating field for theory and research. Beyond traits, there are approaches to personality development that are of interest to students of adult development, and these may be fruitfully addressed from a trait perspective.
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Affiliation(s)
- Paul T Costa
- Behavioral Medicine Research Center and Department of Psychiatry and Behavioral Science, Duke University School of Medicine, Durham, North Carolina 27710, USA;
| | | | - Corinna E Löckenhoff
- Department of Human Development, Cornell University, Ithaca, New York 14850, USA;
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Eslami M, Sadeghi B, Goshadrou F. Chronic ghrelin administration restores hippocampal long-term potentiation and ameliorates memory impairment in rat model of Alzheimer's disease. Hippocampus 2018; 28:724-734. [PMID: 30009391 DOI: 10.1002/hipo.23002] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 06/09/2018] [Accepted: 06/16/2018] [Indexed: 12/24/2022]
Abstract
Alzheimer's disease (AD), as a common age-related dementia, is a progressive manifestation of cognitive decline following synaptic failure resulted majorly by senile plaques composed of deposits of amyloid beta (Aβ). Ghrelin is a multifunctional peptide hormone with receptors present in various brain tissues including hippocampus and has been associated with neuroprotection, neuromodulation, and memory processing. Here, we investigated the neuroprotective and therapeutic effects of intracerebroventricular (icv) ghrelin infusion for 2 weeks on passive avoidance learning (PAL), memory retention, and synaptic plasticity in the hippocampal dentate gyrus (DG) and CA1 of both normal rats and Aβ1-42-induced neurotoxicity in AD model. Male Wistar rats were evaluated for their passive memory performance using a shuttle box while some groups had already received Aβ1-42 and/or chronic ghrelin. Using field potential recording, the induction of short- and long-term potentiation (STP and LTP) was studied in DG granule cells along with the LTP changes in CA1 pyramidal neurons through stimulation of the medial perforant path (mPP) and Schaffer collaterals (SCs), respectively. Our results demonstrated that chronic ghrelin treatment not only improved memory processing and retrieval in normal rats during the PAL task, but also promoted memory retention and alleviated memory loss by amelioration of Aβ1-42-induced synaptic plasticity impairment in AD subjects through augmentation of field excitatory postsynaptic potential (fEPSP) slope that led to LTP restitution in both the mPP-DG and the CA3-CA1 synapses. Meanwhile, STP was not significantly changed, meaning that although ghrelin enhanced postsynaptic excitability in DG, it did not change presynaptic transmitter release significantly. This suggests the involvement of postsynaptic mechanisms in long-term ghrelin-enhanced memory. In conclusion, it can be inferred that chronic ghrelin administration has an auspicious therapeutic value for impaired cognitive performance and memory deficits in AD-like neuropathology.
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Affiliation(s)
- Maryam Eslami
- Department of Physiology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Physiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahman Sadeghi
- Department of Physiology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Biochemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Fatemeh Goshadrou
- Department of Physiology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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McCrae RR, Sutin AR. A Five-Factor Theory Perspective on Causal Analysis. EUROPEAN JOURNAL OF PERSONALITY 2018; 32:151-166. [PMID: 30140117 PMCID: PMC6101665 DOI: 10.1002/per.2134] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Five-Factor Theory (FFT) provides a broad but largely blank template for causal personality research. Within FFT, there are three major categories of questions: (1) How do biological structures and functions lead to trait levels? (2) how do traits and the environment give rise to acquired psychological institutions? and (3) how do personality characteristics interact with specific situations to determine behaviors and reactions? Both practical and ethical issues complicate the search for the causes of trait change. Causal explanations of the development of characteristic adaptations are likely to be incomplete, because there are many different ways in which the same adaptation may be acquired. Studies of the determinants of behavior are usually left to social, educational, or clinical psychologists-although personality psychologists may make distinctive contributions by emphasizing the role of the individual in selecting and creating situations. A causal understanding of the functioning of the personality system is possible through the integration of many lines of evidence, but it is likely to take a very long time. In the meanwhile, personality psychologists may fruitfully pursue the identification of practical causes by which individuals with a given set of traits can optimize their adaptation. If we require truth in any strict sense, we must confine ourselves to one entire state of the world. This will be the cause, and the next entire state will be the effect. There is much truth in this conclusion, but it remains indefensible.F. H. Bradley, 1893/1966, p. 48.
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48
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Di Pardo A, Maglione V. Sphingolipid Metabolism: A New Therapeutic Opportunity for Brain Degenerative Disorders. Front Neurosci 2018; 12:249. [PMID: 29719499 PMCID: PMC5913346 DOI: 10.3389/fnins.2018.00249] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 03/29/2018] [Indexed: 01/01/2023] Open
Abstract
Neurodegenerative diseases represent a class of fatal brain disorders for which the number of effective therapeutic options remains limited with only symptomatic treatment accessible. Multiple studies show that defects in sphingolipid pathways are shared among different brain disorders including neurodegenerative diseases and may contribute to their complex pathogenesis. In this mini review, we discuss the hypothesis that modulation of sphingolipid metabolism and their related signaling pathways may represent a potential therapeutic approach for those devastating conditions. The plausible “druggability” of sphingolipid pathways is greatly promising and represent a relevant feature that brings real advantage to the development of new therapeutic options for these conditions. Indeed, several molecules that selectively target sphingolipds are already available and many of them currently in clinical trial for human diseases. A deeper understanding of the “sphingolipid scenario” in neurodegenerative disorders would certainly enhance therapeutic perspectives for these conditions, by taking advantage from the already available molecules and by promoting the development of new ones.
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Terracciano A, Stephan Y, Luchetti M, Sutin AR. Cognitive Impairment, Dementia, and Personality Stability Among Older Adults. Assessment 2018; 25:336-347. [PMID: 29214858 PMCID: PMC5725278 DOI: 10.1177/1073191117691844] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
There is contrasting evidence on personality stability in advanced age, and limited knowledge on the impact of cognitive impairment and dementia on trait stability. Group- and individual-level longitudinal analyses of the five major dimensions of personality assessed twice over 4 years ( N = 9,935) suggest that rank-order stability was progressively lower with advancing age (from rtt = 0.68 for age 50 to 60 years to rtt = 0.58 for age >80 years). Stability was low in the dementia group ( rtt = 0.43), and this was not simply due to lower reliability given that internal consistency remained adequate in the dementia group. Among individuals with no cognitive impairment or dementia, there was no association between stability and age ( rtt = 0.70 even for age >80 years). These results suggest that the lower personality stability in older adults is not due to age but cognitive impairment and dementia.
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Affiliation(s)
| | | | - Martina Luchetti
- Florida State University College of Medicine, Tallahassee, FL, USA
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Sutin AR, Stephan Y, Luchetti M, Terracciano A. Self-reported personality traits are prospectively associated with proxy-reported behavioral and psychological symptoms of dementia at the end of life. Int J Geriatr Psychiatry 2018; 33:489-494. [PMID: 28869657 PMCID: PMC5807122 DOI: 10.1002/gps.4782] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/27/2017] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Behavioral and psychological symptoms of dementia (BPSD) are among the most challenging aspects of Alzheimer disease for patients and their families. Previous studies have found associations between informant-reported retrospective personality and BPSD; we test whether prospective, self-reported personality predicts who will experience these symptoms. METHODS Deceased participants from the Health and Retirement Study who had evidence of cognitive impairment at the end of life (N = 1988) were selected to examine whether self-reported five-factor model personality traits, measured up to 8 years before death, were associated with proxy-reported BPSD. RESULTS Neuroticism was associated with increased risk of the 7 BPSD: got lost in familiar places, wandered off, were not able to be left alone, experienced hallucinations, suffered from depression, had periodic confusion, and an uncontrolled temper. These associations were not moderated by age, gender, race, or education. Conscientiousness was associated with fewer symptoms overall and especially with lower risk of getting lost in familiar places and not being able to be left alone. CONCLUSIONS The present research indicates that self-reported personality, particularly Neuroticism, is associated prospectively with risk for a wide range of behavioral symptoms for individuals who had cognitive impairment at the end of life. The use of self-reported personality traits can help aid in identifying who is most at risk for behavioral symptoms. Such information may be useful for nonpharmacological interventions tailored to the individual's personality to reduce the prevalence and burden of these BPSD.
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