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Guo J, Wang J, Dove A, Bennett DA, Xu W. Psychological well-being trajectories preceding incident mild cognitive impairment and dementia. J Neurol Neurosurg Psychiatry 2024:jnnp-2024-333837. [PMID: 39137975 DOI: 10.1136/jnnp-2024-333837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 06/28/2024] [Indexed: 08/15/2024]
Abstract
BACKGROUND Poorer psychological well-being has been related to an increased dementia risk, but changes in psychological well-being along the dementia course are unclear. We explored psychological well-being trajectories before and after the diagnosis of mild cognitive impairment (MCI) and dementia. METHODS Within the Rush Memory and Aging Project, 910 cognitively intact older adults were followed annually for up to 14 years to detect incident MCI and dementia. Psychological well-being and its six components (self-acceptance, autonomy, environmental mastery, purpose in life, positive relation with others, and personal growth) were annually measured based on Ryff's Scales of Psychological Well-Being. Data were analysed using mixed-effect models with a backward timescale. RESULTS Compared with participants who remained cognitively intact, those who developed incident MCI had a faster decline in psychological well-being (β -0.015, 95% CI -0.027 to -0.003), leading to lower well-being 2 years before MCI diagnosis (mean difference at year -2, -0.099, 95% CI -0.187 to -0.012). Considering different well-being components, those who developed MCI had lower levels of purpose in life and personal growth beginning 3 years (-0.126, 95% CI -0.251 to -0.001) and 6 years (-0.139, 95% CI -0.268 to -0.009) before MCI, respectively. The slope of psychological well-being decline was similar before and after MCI diagnosis for each component except for positive relation with others, which had an accelerated decline after MCI (β -0.042, 95% CI-0.075 to -0.009). Well-being trajectories remained similar for individuals with MCI regardless of whether they later developed dementia. CONCLUSIONS Psychological well-being (specifically purpose in life and personal growth) became significantly lower before MCI diagnosis.
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Affiliation(s)
- Jie Guo
- Department of Nutrition and Health, China Agricultural University, Beijing, China
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Jiao Wang
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Abigail Dove
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
| | - Weili Xu
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
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Ashe JJ, Evans MK, Zonderman AB, Waldstein SR. Absent Relations of Religious Coping to Telomere Length in African American and White Women and Men. Exp Aging Res 2024; 50:459-481. [PMID: 37258109 PMCID: PMC10687320 DOI: 10.1080/0361073x.2023.2219187] [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: 08/25/2022] [Accepted: 05/23/2023] [Indexed: 06/02/2023]
Abstract
OBJECTIVES This study investigated whether race and sex moderated the relations of religious coping to telomere length (TL), a biomarker of cellular aging implicated in race-related health disparities. METHODS Participant data were drawn from the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study, which included 252 socioeconomically diverse African American and White men and women aged (30-64 years old). Cross-sectional multivariable regression analyses examined interactive associations of religious coping, race, and sex to TL, adjusting for other sociodemographic characteristics. RESULTS Religious coping was unrelated to TL in this sample (p's > .05). There were no notable race or sex differences. Post hoc exploratory analyses similarly found that neither secular social support coping use nor substance use coping was associated with TL. CONCLUSION There was no evidence to support that religious coping use provided protective effects to TL in this sample of African American and White women and men. Nevertheless, future studies should use more comprehensive assessments of religious coping and intersectional identities to provide an in-depth examination of religiosity/spirituality as a potential culturally salient protective factor in cellular aging among African Americans in the context of specific chronic stressors such as discrimination.
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Affiliation(s)
- Jason J. Ashe
- Department of Psychology, University of Maryland, Baltimore County, Baltimore, MD, US
| | - Michele K. Evans
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Baltimore, MD, US
| | - Alan B. Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Baltimore, MD, US
| | - Shari R. Waldstein
- Department of Psychology, University of Maryland, Baltimore County, Baltimore, MD, US
- Division of Gerontology and Geriatric Medicine, University of Maryland School of Medicine, Baltimore, MD, US
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Faria M, Ganz A, Galkin F, Zhavoronkov A, Snyder M. Psychogenic Aging: A Novel Prospect to Integrate Psychobiological Hallmarks of Aging. Transl Psychiatry 2024; 14:226. [PMID: 38816369 PMCID: PMC11139997 DOI: 10.1038/s41398-024-02919-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 12/20/2023] [Accepted: 05/08/2024] [Indexed: 06/01/2024] Open
Abstract
Psychological factors are amongst the most robust predictors of healthspan and longevity, yet are rarely incorporated into scientific and medical frameworks of aging. The prospect of characterizing and integrating the psychological influences of aging is therefore an unmet step for the advancement of geroscience. Psychogenic Aging research is an emerging branch of biogerontology that aims to address this gap by investigating the impact of psychological factors on human longevity. It is an interdisciplinary field that integrates complex psychological, neurological, and molecular relationships that can be best understood with precision medicine methodologies. This perspective argues that psychogenic aging should be considered an integral component of the Hallmarks of Aging framework, opening the doors for future biopsychosocial integration in longevity research. By providing a unique perspective on frequently overlooked aspects of organismal aging, psychogenic aging offers new insights and targets for anti-aging therapeutics on individual and societal levels that can significantly benefit the scientific and medical communities.
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Affiliation(s)
- Manuel Faria
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Ariel Ganz
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Alex Zhavoronkov
- Deep Longevity, Hong Kong, China
- Insilico Medicine, Hong Kong, China
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Michael Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.
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Conklin QA, Zanesco AP, King BG, Epel ES, Saron CD. Changes in peripheral oxytocin and vasopressin during a silent month-long Insight meditation retreat. Front Endocrinol (Lausanne) 2024; 15:1345527. [PMID: 38863930 PMCID: PMC11165068 DOI: 10.3389/fendo.2024.1345527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/30/2024] [Indexed: 06/13/2024] Open
Abstract
Background Given its putative roles in mediating prosocial behavior, attachment bonds, and stress physiology, oxytocin modulation has been hypothesized to be a biological correlate of the salubrious effects of meditation practice. Here we investigated the effects of a month-long silent meditation retreat on changes in oxytocin, and the related hormone and vasopressin, in relation to psychosocial changes in attachment style, anxiety, personality measures, and feelings of social connectedness with fellow meditators. Methods Plasma oxytocin and vasopressin and self-report questionnaires were measured in retreat participants (n = 28) at the beginning of, and 3 weeks into, a residential meditation retreat. Control participants (n = 34), who were similar in age, gender, and meditation experience, were also assessed across a 3-week interval. Linear mixed effects models were used to assess outcomes. Results The retreat group showed a small but significant decrease in oxytocin compared to controls who showed no change. In the retreat group, higher openness to experience at Time 1 predicted greater reductions in oxytocin during the retreat, and lower oxytocin at Time 2 was related to stronger feelings of personal connection with fellow meditators. The changes in oxytocin were not related to attachment style or anxiety. Vasopressin decreased over time across both groups, suggesting no specific effect of retreat. Conclusion These preliminary findings suggest that meditation training in the context of a silent residential retreat may reduce circulating levels of oxytocin. We interpret this finding from multiple theoretical perspectives, discussing key measurement limitations and proposing future study designs that may help to differentiate the effects of different meditation practices and contexts on oxytocin signaling.
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Affiliation(s)
- Quinn A. Conklin
- Center for Health and Community, University of California, San Francisco, San Francisco, CA, United States
- Center for Mind and Brain, University of California, Davis, Davis, CA, United States
| | - Anthony P. Zanesco
- Center for Mind and Brain, University of California, Davis, Davis, CA, United States
- Department of Psychology, University of Miami, Miami, FL, United States
| | - Brandon G. King
- Center for Mind and Brain, University of California, Davis, Davis, CA, United States
| | - Elissa S. Epel
- Center for Health and Community, University of California, San Francisco, San Francisco, CA, United States
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, United States
| | - Clifford D. Saron
- Center for Mind and Brain, University of California, Davis, Davis, CA, United States
- The MIND Institute, University of California, Davis, Davis, CA, United States
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Macrì M, D’Albis G, D’Albis V, Antonacci A, Abbinante A, Stefanelli R, Pegreffi F, Festa F. Periodontal Health and Its Relationship with Psychological Stress: A Cross-Sectional Study. J Clin Med 2024; 13:2942. [PMID: 38792482 PMCID: PMC11122378 DOI: 10.3390/jcm13102942] [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: 04/03/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Studies suggest that chronic psychological stress can lead to oral health deterioration, alter the immune response, and possibly contribute to increased inflammation, which can impact the physiological healing of periodontal tissues. This cross-sectional study seeks to assess and improve clinical understanding regarding the relationship between perceived stress, mindfulness, and periodontal health. Methods: A total of 203 people were analyzed from December 2022 to June 2023. The Periodontal Screening and Recording (PSR) score and Gingival Bleeding Index (GBI), and Plaque Control Record (PCR) of every patient were registered. Subsequently, participants completed the Sheldon Cohen Perceived Stress Scale (PSS) and the Mindfulness Awareness Attention Scale (MAAS) questionnaires. The collected data underwent statistical analysis, encompassing the evaluation of correlations and dependencies. Applying Welch's t-test to assess the relationship between MAAS and the variable indicating the presence or absence of periodontitis, a noteworthy p-value of 0.004265 was obtained. Results: This underscores a significant distinction in MAAS scores between patients affected by periodontitis and those unaffected by the condition. Additionally, Pearson correlations were computed for GBI and perceived stress, PCR and perceived stress, PCR and MAAS. The resulting p-values of 2.2-16, 3.925-8, and 2.468-8, respectively, indicate a statistically significant correlation in each instance. Conclusions: These findings contribute valuable insights into the interconnectedness of these variables, emphasizing the significance of their associations in the study context. Despite the limitations, the findings of this study suggest a significant relationship between psychological stress, mindfulness, and periodontal tissue health. Clinical trials are necessary to incorporate the assessment of a patient's psychological status as a new valuable tool in the management of periodontal health.
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Affiliation(s)
- Monica Macrì
- Department of Innovative Technologies in Medicine & Dentistry, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Giuseppe D’Albis
- Department of Innovative Technologies in Medicine & Dentistry, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Vincenzo D’Albis
- Department of Innovative Technologies in Medicine & Dentistry, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Anna Antonacci
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy
| | - Antonia Abbinante
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy
| | - Riccardo Stefanelli
- Department for Life Quality Studies, University of Bologna, 40064 Bologna, Italy
| | - Francesco Pegreffi
- Department for Life Quality Studies, University of Bologna, 40064 Bologna, Italy
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy
| | - Felice Festa
- Department of Innovative Technologies in Medicine & Dentistry, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
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Sibilia J, Berna F, Bloch JG, Scherlinger M. Mind-body practices in chronic inflammatory arthritis. Joint Bone Spine 2024; 91:105645. [PMID: 37769800 DOI: 10.1016/j.jbspin.2023.105645] [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] [Accepted: 05/03/2023] [Indexed: 10/03/2023]
Abstract
Mind-body practices are complementary approaches recognized by the World Health Organization (WHO). While these practices are very diverse, they all focus on the interaction between mind and body. These include mindful meditation, yoga, Tai Chi, sophrology, hypnosis and various relaxation techniques. There is growing interest in incorporating these strategies in the management of chronic rheumatic diseases including rheumatoid arthritis. The aim of this review is to describe the main mind-body practices and analyze the existing evidence in chronic rheumatic diseases. In rheumatoid arthritis, the Mindfulness-Based Stress Reduction program, yoga, Tai Chi and relaxation may improve patient-reported outcomes, but the benefit on inflammation and structural progression is unclear. In spondyloarthritis, very few studies are available but similar evidence exist. Further evaluations of these practices in chronic rheumatic diseases are needed since their risk/benefit ratio appears excellent.
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Affiliation(s)
- Jean Sibilia
- Service de Rhumatologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; UMR INSERM 1109, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France.
| | - Fabrice Berna
- Service de Psychiatrie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Jean-Gérard Bloch
- Service de Rhumatologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marc Scherlinger
- Service de Rhumatologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; UMR INSERM 1109, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
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Aghajanyan V, Bhupathy S, Sheikh S, Nausheen F. A Narrative Review of Telomere Length Modulation Through Diverse Yoga and Meditation Styles: Current Insights and Prospective Avenues. Cureus 2023; 15:e46130. [PMID: 37900433 PMCID: PMC10612486 DOI: 10.7759/cureus.46130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Mindfulness practices have demonstrated the potential to positively impact various aspects of human health associated with telomere length (TL) - a recognized marker of healthy aging and susceptibility to age-related diseases. This review seeks to conduct an in-depth comparative analysis, examining methodological variations, outcome assessments, strengths, weaknesses, and gaps across mindfulness-focused studies concerning TL and attrition rates. While emerging data tentatively suggest a positive connection between mindfulness practices and TL, a notable research gap pertains to establishing the clinically recommended dosage of yoga/meditation and mindfulness interventions to effectively influence TL. To address this gap, upcoming research should prioritize meticulous structuring, pedagogical precision, and vigilant monitoring of mindfulness interventions to yield psychological and physiological benefits across an appropriate timeframe and intensity. The amalgamation of yoga/meditation or mindfulness emerges as a promising avenue for enhancing the quality of life while counteracting the influence of telomere attrition in the spectrum of age-related diseases. The core objective of this review is to meticulously investigate the interplay between yoga/meditation and mindfulness practices and their potential impact on TL - an essential biomarker indicative of age-related health and well-being. To achieve this, our study methodically compares various methodological approaches, outcome measures, strengths, and limitations within relevant research endeavors focused on TL and attrition rates. Through this scrutiny, we highlight prevailing research gaps. Our analysis underscores the need for comprehensive research efforts aimed at establishing the optimal therapeutic regimen for yielding significant clinical effects on TL and overall health. In summation, our exploration emphasizes the urgency of further studies to unravel the most effective approaches for positively influencing TL and its implications for holistic health.
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Affiliation(s)
- Vahe Aghajanyan
- Medical Education, California University of Science and Medicine, Colton, USA
| | - Supriya Bhupathy
- Medical Education, California University of Science and Medicine, Colton, USA
| | - Shazia Sheikh
- Medical Education, California University of Science and Medicine, Colton, USA
| | - Fauzia Nausheen
- Education, California University of Science and Medicine, Colton, USA
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Dasanayaka NN, Sirisena ND, Samaranayake N. Associations of meditation with telomere dynamics: a case-control study in healthy adults. Front Psychol 2023; 14:1222863. [PMID: 37519381 PMCID: PMC10380951 DOI: 10.3389/fpsyg.2023.1222863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/22/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction Telomeres are protective end caps of chromosomes which naturally shorten with each cell division and thus with age. Short telomeres have been associated with many age-related diseases. Meditation has come to the fore as a mind-body practice which could influence the telomere dynamics underlying these phenomena. We previously reported meditation to be associated with higher telomerase levels, mindfulness and quality of life. Here, reporting on the same study population, we describe associations between long-term meditation and telomere length (TL), expression of hTERT and hTR genes and methylation of the promoter region of hTERT gene. Methods Thirty healthy meditators and matched non-meditators were recruited. TL was measured using quantitative PCR, gene expression was assessed using reverse transcriptase PCR, and methylation level was quantified by bisulfite-specific PCR followed by Sanger sequencing. Comparisons between meditators and controls were carried out using t-tests, while Pearson correlation was used to identify correlations, and regression was used to identify predictors. Results Males comprised 63.4% of each group with an average age of 43 years. On average, they had meditated daily for 5.82 h (±3.45) for 6.8 years (±3.27). Meditators had longer relative TLs (p = 0.020), and TL decreased with age (p < 0.001) but was not associated with other socio-demographic variables. Regression analysis showed that age (p < 0.001) and duration of meditation (p = 0.003) significantly predicted TL. The meditators showed higher relative expression of hTERT (p = 0.020) and hTR (p = 0.029) genes while the methylation level of the promoter region of hTERT gene was significantly lower when compared to non-meditators (p < 0.001). Negative correlations were identified between the methylation level of the promoter region of hTERT gene and the expression of the hTERT gene (p = 0.001) and duration of meditation (p = 0.001). Conclusion The findings suggest that meditation as a lifestyle practice has multi-level beneficial effects on telomere dynamics with potential to promote healthy aging.
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Affiliation(s)
- Nirodhi Namika Dasanayaka
- Research Promotion and Facilitation Centre, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Nirmala Dushyanthi Sirisena
- Department of Anatomy, Genetics & Biomedical Informatics, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Nilakshi Samaranayake
- Department of Parasitology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
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Thakur M, Patil Y, Philip ST, Hamdule T, Thimmapuram J, Vyas N, Thakur K. Impact of Heartfulness meditation practice on anxiety, perceived stress, well-being, and telomere length. Front Psychol 2023; 14:1158760. [PMID: 37342644 PMCID: PMC10278541 DOI: 10.3389/fpsyg.2023.1158760] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 05/08/2023] [Indexed: 06/23/2023] Open
Abstract
Objective Exhaustion, stress, and burnout have all been found to be reduced using techniques like yoga and meditation. This study was carried out to check the effectiveness of Heartfulness practice (a form of meditation) on certain psychological and genetic variables. Methods A total of 100 healthy individuals (aged 18-24) were recruited and randomized into two groups-Heartfulness intervention and control group. The intervention was carried out for 03 months. Participants from both groups were analysed for their cortisol levels and telomere length before and after the intervention. Psychometric measures of anxiety, perceived stress, well-being and mindfulness were carried out using Beck Anxiety Inventory (BAI), Perceived Stress Scale (PSS), WHO-Well-being Index (WHO-WBI) and Five Facet Mindfulness Questionnaire (FFMQ). Results The cortisol levels in the meditators group significantly decreased (p < 0.001) after the intervention as compared to the non-meditators group, whereas, the telomere length increased in the mediators group. This increase was not significant (p > 0.05). Anxiety and perceived stress also decreased post intervention, and well-being as well as mindfulness increased, as assessed by the questionnaire tools, although the decrease in perceived stress was statistically insignificant (p > 0.05). A negative correlation was observed between telomere length and cortisol (stress biomarker), whereas a positive correlation was found between telomere length and well-being. Conclusion Our data provide evidence that Heartfulness meditation practice can improve our mental health. Additionally, telomere length is shown to be affected by cortisol levels, and this meditation practice can also help to increase telomere length, and thereby slow down cellular aging. However, future studies with larger sample size are required to confirm our observations.
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Affiliation(s)
- Mansee Thakur
- Department of Medical Biotechnology, Central Research Laboratory, Mahatma Gandhi Mission School of Biomedical Sciences, Mahatma Gandhi Mission Institute of Health Sciences, Navi Mumbai, India
| | - Yogesh Patil
- Department of Medical Biotechnology, Central Research Laboratory, Mahatma Gandhi Mission School of Biomedical Sciences, Mahatma Gandhi Mission Institute of Health Sciences, Navi Mumbai, India
| | - Sanjana T. Philip
- Department of Medical Biotechnology, Central Research Laboratory, Mahatma Gandhi Mission School of Biomedical Sciences, Mahatma Gandhi Mission Institute of Health Sciences, Navi Mumbai, India
| | - Tahreem Hamdule
- Department of Medical Biotechnology, Central Research Laboratory, Mahatma Gandhi Mission School of Biomedical Sciences, Mahatma Gandhi Mission Institute of Health Sciences, Navi Mumbai, India
| | - Jayaram Thimmapuram
- Department of Internal Medicine, Well Span York Hospital, York, PA, United States
| | | | - Kapil Thakur
- SRCM Heartfulness Meditation Centre, Navi Mumbai, India
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Wahbeh H, Cannard C, Kriegsman M, Delorme A. Evaluating brain spectral and connectivity differences between silent mind-wandering and trance states. PROGRESS IN BRAIN RESEARCH 2023; 277:29-61. [PMID: 37301570 DOI: 10.1016/bs.pbr.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Trance is an altered state of consciousness characterized by alterations in cognition. In general, trance states induce mental silence (i.e., cognitive thought reduction), and mental silence can induce trance states. Conversely, mind-wandering is the mind's propensity to stray its attention away from the task at hand and toward content irrelevant to the current moment, and its main component is inner speech. Building on the previous literature on mental silence and trance states and incorporating inverse source reconstruction advances, the study's objectives were to evaluate differences between trance and mind-wandering states using: (1) electroencephalography (EEG) power spectra at the electrode level, (2) power spectra at the area level (source reconstructed signal), and (3) EEG functional connectivity between these areas (i.e., how they interact). The relationship between subjective trance depths ratings and whole-brain connectivity during trance was also evaluated. Spectral analyses revealed increased delta and theta power in the frontal region and increased gamma in the centro-parietal region during mind-wandering, whereas trance showed increased beta and gamma power in the frontal region. Power spectra at the area level and pairwise comparisons of the connectivity between these areas demonstrated no significant difference between the two states. However, subjective trance depth ratings were inversely correlated with whole-brain connectivity in all frequency bands (i.e., deeper trance is associated with less large-scale connectivity). Trance allows one to enter mentally silent states and explore their neurophenomenological processes. Limitations and future directions are discussed.
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Affiliation(s)
- Helané Wahbeh
- Research Department, Institute of Noetic Sciences, Petaluma, CA, United States.
| | - Cedric Cannard
- Research Department, Institute of Noetic Sciences, Petaluma, CA, United States
| | - Michael Kriegsman
- Research Department, Institute of Noetic Sciences, Petaluma, CA, United States
| | - Arnaud Delorme
- Research Department, Institute of Noetic Sciences, Petaluma, CA, United States; University of California, San Diego, CA, United States
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Jaiswal S, Huang SL, Juan CH, Huang NE, Liang WK. Resting state dynamics in people with varying degrees of anxiety and mindfulness: A nonlinear and nonstationary perspective. Neuroscience 2023; 519:177-197. [PMID: 36966877 DOI: 10.1016/j.neuroscience.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/16/2023] [Accepted: 03/11/2023] [Indexed: 03/29/2023]
Abstract
Anxiety and mindfulness are two inversely linked traits shown to be involved in various physiological domains. The current study used resting state electroencephalography (EEG) to explore differences between people with low mindfulness-high anxiety (LMHA) (n = 29) and high mindfulness-low anxiety (HMLA) (n = 27). The resting EEG was collected for a total of 6 min, with a randomized sequence of eyes closed and eyes opened conditions. Two advanced EEG analysis methods, Holo-Hilbert Spectral Analysis and Holo-Hilbert cross-frequency phase clustering (HHCFPC) were employed to estimate the power-based amplitude modulation of carrier frequencies, and cross-frequency coupling between low and high frequencies, respectively. The presence of higher oscillation power across the delta and theta frequencies in the LMHA group than the HMLA group might have been due to the similarity between the resting state and situations of uncertainty, which reportedly triggers motivational and emotional arousal. Although these two groups were formed based on their trait anxiety and trait mindfulness scores, it was anxiety that was found to be significant predictor of the EEG power, not mindfulness. It led us to conclude that it might be anxiety, not mindfulness, which might have contributed to higher electrophysiological arousal. Additionally, a higher δ-β and δ-γ CFC in LMHA suggested greater local-global neural integration, consequently a greater functional association between cortex and limbic system than in the HMLA group. The present cross-sectional study may guide future longitudinal studies on anxiety aiming with interventions such as mindfulness to characterize the individuals based on their resting state physiology.
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[Looking into international journals]. ZEITSCHRIFT FUR PSYCHOSOMATISCHE MEDIZIN UND PSYCHOTHERAPIE 2023; 69:98-102. [PMID: 36927318 DOI: 10.13109/zptm.2023.69.1.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Dobewall H, Keltikangas-Järvinen L, Marttila S, Mishra PP, Saarinen A, Cloninger CR, Zwir I, Kähönen M, Hurme M, Raitakari O, Lehtimäki T, Hintsanen M. The relationship of trait-like compassion with epigenetic aging: The population-based prospective Young Finns Study. Front Psychiatry 2023; 14:1018797. [PMID: 37143783 PMCID: PMC10151573 DOI: 10.3389/fpsyt.2023.1018797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 03/17/2023] [Indexed: 05/06/2023] Open
Abstract
Introduction Helping others within and beyond the family has been related to living a healthy and long life. Compassion is a prosocial personality trait characterized by concern for another person who is suffering and the motivation to help. The current study examines whether epigenetic aging is a potential biological mechanism that explains the link between prosociality and longevity. Methods We used data from the Young Finns Study that follows six birth-cohorts from age 3-18 to 19-49. Trait-like compassion for others was measured with the Temperament and Character Inventory in the years 1997 and 2001. Epigenetic age acceleration and telomere length were measured with five DNA methylation (DNAm) indicators (DNAmAgeHorvath, IEAA_Hannum, EEAA_Hannum, DNAmPhenoAge, and DNAmTL) based on blood drawn in 2011. We controlled for sex, socioeconomic status in childhood and adulthood, and body-mass index. Results and discussion An association between higher compassion in 1997 and a less accelerated DNAmPhenoAge, which builds on previous work on phenotypic aging, approached statistical significance in a sex-adjusted model (n = 1,030; b = -0.34; p = 0.050). Compassion in 1997 predicted less accelerated epigenetic aging over and above the control variables (n = 843; b = -0.47; p = 0.016). There was no relationship between compassion in 2001 (n = 1108/910) and any of the other four studied epigenetic aging indicators. High compassion for others might indeed influence whether an individual's biological age is lower than their chronological age. The conducted robustness checks partially support this conclusion, yet cannot rule out that there might be a broader prosocial trait behind the findings. The observed associations are interesting but should be interpreted as weak requiring replication.
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Affiliation(s)
- Henrik Dobewall
- Faculty of Education, VISE Research Unit, Faculty of Education and Psychology, University of Oulu, Oulu, Finland
- Finnish Institute for Health and Welfare, Helsinki, Finland
- *Correspondence: Henrik Dobewall,
| | | | - Saara Marttila
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Gerontology Research Center, Tampere University, Tampere, Finland
| | - Pashupati P. Mishra
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Fimlab Laboratories and Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Aino Saarinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - C. Robert Cloninger
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States
| | - Igor Zwir
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States
- Department of Computer Science, University of Granada, Granada, Spain
| | - Mika Kähönen
- Department of Clinical Physiology, Tampere University Hospital and Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mikko Hurme
- Department of Microbiology and Immunology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Olli Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
| | - Terho Lehtimäki
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Fimlab Laboratories and Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mirka Hintsanen
- Faculty of Education, VISE Research Unit, Faculty of Education and Psychology, University of Oulu, Oulu, Finland
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Rich T, Chrisinger BW, Kaimal R, Winter SJ, Hedlin H, Min Y, Zhao X, Zhu S, You SL, Sun CA, Lin JT, Hsing AW, Heaney C. Contemplative Practices Behavior Is Positively Associated with Well-Being in Three Global Multi-Regional Stanford WELL for Life Cohorts. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13485. [PMID: 36294068 PMCID: PMC9603492 DOI: 10.3390/ijerph192013485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/02/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Positive associations between well-being and a single contemplative practice (e.g., mindfulness meditation) are well documented, yet prior work may have underestimated the strength of the association by omitting consideration of multiple and/or alternative contemplative practices. Moreover, little is known about how contemplative practice behavior (CPB) impacts different dimensions of well-being. This study investigates the relationship of CPB, consisting of four discrete practices (embodied somatic-observing, non-reactive mindfulness, self-compassion, and compassion for others), with multiple dimensions of well-being. As with other canonical lifestyle behaviors, multiple contemplative practices can be integrated into one's daily routine. Thus, it is critical to holistically consider these behaviors, extending them beyond a simple uni-dimensional measure (e.g., daily mindfulness meditation practice). We developed an integrative measure of four types of contemplative practice and found it to be significantly associated with a multi-dimensional measure of well-being. Importantly, our findings were from three large global multi-regional cohorts and compared against better-understood lifestyle behaviors (physical activity). Data were drawn from California/San Francisco Bay Area, (n = 6442), Hangzhou City (n = 10,268), and New Taipei City (n = 3033). In all three cohorts, we found statistically significant (p < 0.05) positive associations between CPB and well-being, both overall and with all of the constituent domains of well-being, comparable to or stronger than the relationship with physical activity across most well-being outcomes. These findings provide robust and cross-cultural evidence for a positive association between CPB and well-being, illuminate dimensions of well-being that could be most influenced by CPB, and suggest CPB may be useful to include as part of fundamental lifestyle recommendations for health and well-being.
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Affiliation(s)
- Tia Rich
- Stanford Prevention Research Center, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94035, USA
| | | | | | - Sandra J. Winter
- Stanford Prevention Research Center, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94035, USA
| | - Haley Hedlin
- Quantitative Sciences Unit, Department of Medicine, Stanford University, Stanford, CA 94035, USA
| | - Yan Min
- Stanford Prevention Research Center, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94035, USA
- Department of Epidemiology and Population Health, Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Xueyin Zhao
- Chronic Disease Research Institute, The Children’s Hospital, and National Clinical Research Center for Child Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Department of Nutrition and Food Hygiene, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Shankuan Zhu
- Chronic Disease Research Institute, The Children’s Hospital, and National Clinical Research Center for Child Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Department of Nutrition and Food Hygiene, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - San-Lin You
- School of Medicine, Data Science Center, College of Medicine Fu-Jen Catholic University, New Taipei City 24205, Taiwan
| | - Chien-An Sun
- School of Medicine, Data Science Center, College of Medicine Fu-Jen Catholic University, New Taipei City 24205, Taiwan
| | - Jaw-Town Lin
- Department of Gastroenterology and Hepatology, E-Da Hospital, Kaohsiung City 82445, Taiwan
| | - Ann W. Hsing
- Stanford Prevention Research Center, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94035, USA
- Department of Epidemiology and Population Health, Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA
- Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, CA 94035, USA
| | - Catherine Heaney
- Stanford Prevention Research Center, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94035, USA
- Department of Psychology, Stanford University, Stanford, CA 94305, USA
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15
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Goldberg SB. A common factors perspective on mindfulness-based interventions. NATURE REVIEWS PSYCHOLOGY 2022; 1:605-619. [PMID: 36339348 PMCID: PMC9635456 DOI: 10.1038/s44159-022-00090-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/28/2022] [Indexed: 05/25/2023]
Abstract
Mindfulness-based interventions (MBIs) have entered mainstream Western culture in the past four decades. There are now dozens of MBIs with varying degrees of empirical support and a variety of mindfulness-specific psychological mechanisms have been proposed to account for the beneficial effects of MBIs. Although it has long been acknowledged that non-specific or common factors might contribute to MBI efficacy, relatively little empirical work has directly investigated these aspects. In this Perspective, I suggest that situating MBIs within the broader psychotherapy research literature and emphasizing the commonalities rather than differences between MBIs and other treatments might help guide future MBI research. To that end, I summarize the evidence for MBI efficacy and several MBI-specific psychological mechanisms, contextualize MBI findings within the broader psychotherapy literature from a common factors perspective, and propose suggestions for future research based on innovations and challenges occurring within psychotherapy research.
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Affiliation(s)
- Simon B. Goldberg
- Department of Counseling Psychology, University of Wisconsin, Madison, WI, USA
- Center for Healthy Minds, University of Wisconsin, Madison, WI, USA
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16
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Hu H, Mo PKH, She R, Lau JTF. Understanding the Pathways from Mindfulness to COVID-19 Vaccination Intention via Positive Psychology Attributes among Health Care Workers in China. THE JOURNAL OF PSYCHOLOGY 2022; 156:535-551. [PMID: 36170676 DOI: 10.1080/00223980.2022.2101419] [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: 10/14/2022] Open
Abstract
OBJECTIVE The present study aims to examine the association between mindfulness and COVID-19 vaccination intention, and the mediating role of presence of meaning in life and moral elevation in such association. METHOD In a cross-sectional study design, a total of 1733 health care workers (81.1% females, Mage = 34.16 ± 9.03) from four cities in China were recruited and completed an online survey that measured mindfulness, moral elevation, presence of meaning in life and COVID-19 vaccination intention. RESULTS It has been found that 73.1% of the participants reported an intention to receive COVID-19 vaccination. Mindfulness was positively associated with COVID-19 vaccination intention; Mediation analyses using structural equation modeling showed a significant indirect effect of mindfulness on COVID-19 vaccination intention, accounting for 42.4% of the total effect. Mindfulness was positively associated with COVID-19 vaccination intention directly via presence of meaning in life, and indirectly via moral elevation and presence of meaning in life. CONCLUSIONS The findings add knowledge of how mindfulness may increase COVID-19 vaccination intention, and underscore the potential need for mindfulness training, positive emotion promotion, presence of meaning in life interventions to improve acceptance of COVID-19 vaccination among health care workers.
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Affiliation(s)
| | | | - Rui She
- The Chinese University of Hong Kong
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17
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Cultural tightness, neuroticism, belief in a just world for self, gender, and subjective well-being: A moderated mediation model. CURRENT PSYCHOLOGY 2022. [DOI: 10.1007/s12144-022-03652-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Enhancing the wellness of caregivers of individuals with epilepsy: The effects of a brief stress management course. Epilepsy Behav 2022; 133:108745. [PMID: 35716427 DOI: 10.1016/j.yebeh.2022.108745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/23/2022]
Abstract
PURPOSE To determine whether a brief stress management video can improve the quality of life of caregivers of persons with epilepsy (PWE). METHODS Thirty-three adult caregivers of PWE who scored 5 or higher on the Caregiver Self-Assessment Questionnaire (CSAQ) completed a 30-min stress management video. This was preceded by a pre-intervention assessment, followed by post-intervention assessment at 1 month, and a delayed post-intervention assessment evaluation 3 months after video was viewed. Measures of program acceptability were also obtained. RESULTS There was significant improvement when comparing pre- and post-intervention CSAQ scores. This improvement was sustained at 3 months post intervention. Measures of program acceptability were favorable. CONCLUSION A brief stress management course can help improve the quality of life of caregivers of PWE.
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19
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Kundalini Yoga for Post-Treatment Lyme Disease: A Preliminary Randomized Study. Healthcare (Basel) 2022; 10:healthcare10071314. [PMID: 35885840 PMCID: PMC9315934 DOI: 10.3390/healthcare10071314] [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: 05/28/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 12/01/2022] Open
Abstract
This study examined the adherence to and the potential benefit of Kundalini yoga (KY) for post-treatment Lyme disease syndrome (PTLDS). Participants were randomly assigned to 8 weeks of a KY small-group intervention or a waitlist control (WLC). Adherence was measured as attendance at KY group sessions. Primary outcomes assessed pain, pain interference, fatigue, and global health. Secondary outcomes assessed multisystem symptom burden, mood, sleep, physical and social functioning, cognition, and mindfulness. Linear mixed models were used to test changes in outcomes over time as a function of group assignment; intercepts for participants were modeled as random effects. Although the target sample size was 40 participants, the study concluded with 29 participants due to recruitment challenges. No KY participants dropped out of the study, and participants attended 75% of group sessions on average, but WLC retention was poor (57%). Regarding primary outcomes, there was no significant interaction between group and time. Regarding secondary outcomes, there was a significant interaction between group and time for multisystem symptom burden (p < 0.05) and cognition (p < 0.01); KY participants reported improved multisystem symptom burden and cognition over the course of the study compared to WLC participants. To enhance recruitment and retention, future trials may consider expanding geographic access and including supportive procedures for WLC participants. This preliminary study supports the need for a larger study to determine if KY reduces multisystem symptom burden and enhances cognition among people with PTLDS.
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20
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Shaw SB, Levy Y, Mizzi A, Herman G, McKinnon MC, Heisz JJ, Becker S. Combined Aerobic Exercise and Neurofeedback Lead to Improved Task-Relevant Intrinsic Network Synchrony. Front Hum Neurosci 2022; 16:838614. [PMID: 35774480 PMCID: PMC9237564 DOI: 10.3389/fnhum.2022.838614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 05/10/2022] [Indexed: 11/13/2022] Open
Abstract
Lifestyle interventions such as exercise and mindfulness training have the potential to ameliorate mental health symptoms and restore dysregulated intrinsic connectivity network (ICN) dynamics, seen in many psychopathologies. Multiple lifestyle interventions, in combination, may interact synergistically for enhanced benefits. While the impacts of lifestyle interventions on subjective measures of mood are well-documented, their impacts on ICN dynamics are not well-established. In this study, we assessed the validity of EEG-derived measures of ICN dynamics as potential markers of mood disorders, by tracking ICN dynamics and mood symptoms through the course of a longitudinal exercise intervention. Specifically, we investigated the separate and combined effects of aerobic exercise and mindfulness-like neurofeedback training on task-linked ICN dynamics of the default mode network (DMN), central executive network (CEN), and salience network (SN). Participants were assigned pseudo-randomly into four experimental conditions—Control, Running, Neurofeedback, and Combined, performing the corresponding intervention for 16 sessions across 8 weeks. Intervention-linked changes in ICN dynamics were studied using EEG-based neuroimaging scans before and after the 8-week intervention, during which participants performed multiple blocks of autobiographical memory recall (AM) and working memory (WM) trials, designed to activate the DMN and CEN, respectively, and to activate the SN in conjunction with the task-appropriate network. The EEG-based features for classification of the three core networks had been identified in our prior research from simultaneously recorded EEG and fMRI during the same AM and WM tasks. We categorized participants as “responders” or “non-responders” based on whether the exercise intervention increased their aerobic capacity (VO2-max) (Running/Combined group), and/or neurofeedback increased the percentage time spent in the calm mindfulness state (Neurofeedback/Combined group). In responders, compared to each intervention alone, the combined exercise-neurofeedback intervention resulted in a more healthy CEN-SN synchrony pattern. Interestingly, non-responders to neurofeedback exhibited a maladaptive pattern of persistent, task-inappropriate DMN-SN synchrony which we speculate could be linked to depressive rumination. Furthermore, the CEN-SN synchrony at baseline predicted NFB response with up to 80% accuracy, demonstrating the potential utility of such network-based biomarkers in personalizing intervention plans.
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Affiliation(s)
- Saurabh Bhaskar Shaw
- Department of Psychiatry, Western University, London, ON, Canada
- Vector Institute for Artificial Intelligence, Toronto, ON, Canada
- Homewood Research Institute, Guelph, ON, Canada
| | - Yarden Levy
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, ON, Canada
- Centre for Advanced Research in Experimental and Applied Linguistics (ARiEAL), Department of Linguistics and Languages, McMaster University, Hamilton, ON, Canada
| | - Allison Mizzi
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, ON, Canada
- Centre for Advanced Research in Experimental and Applied Linguistics (ARiEAL), Department of Linguistics and Languages, McMaster University, Hamilton, ON, Canada
| | - Gabrielle Herman
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Margaret C. McKinnon
- Homewood Research Institute, Guelph, ON, Canada
- Department of Psychiatry and Behavioural Neuroscience, McMaster University, Hamilton, ON, Canada
- Mood Disorders Program, St. Joseph's Healthcare, Hamilton, ON, Canada
| | - Jennifer J. Heisz
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Suzanna Becker
- Vector Institute for Artificial Intelligence, Toronto, ON, Canada
- Department of Psychology Neuroscience & Behaviour, McMaster University, Hamilton, ON, Canada
- Centre for Advanced Research in Experimental and Applied Linguistics (ARiEAL), Department of Linguistics and Languages, McMaster University, Hamilton, ON, Canada
- *Correspondence: Suzanna Becker
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21
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Dasanayaka NN, Sirisena ND, Samaranayake N. Impact of Meditation-Based Lifestyle Practices on Mindfulness, Wellbeing, and Plasma Telomerase Levels: A Case-Control Study. Front Psychol 2022; 13:846085. [PMID: 35310206 PMCID: PMC8931770 DOI: 10.3389/fpsyg.2022.846085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
Meditation involves psychophysical training which can result in a range of benefits including creating a calm mind and increasing self-awareness, relaxation, and tranquility. Increasing evidence, mostly based on short-term focused interventions, suggests that meditation-based activities may also have favorable effects on physical wellbeing including cellular aging. Hence, the aim of this study was to investigate if continued practice of meditation benefited quality of life, state of mindfulness, and plasma telomerase level in healthy adults. 30 long-term and skilled meditators were recruited from meditation centers in different parts of the island following a two-tier screening process of 70 eligible participants and 30 age- and gender-matched healthy non-meditators were recruited from the community. Mindfulness level and the quality of life were measured using the Five Facet Mindfulness Questionnaire (FFMQ) and Quality of Life Questionnaire, respectively, while the levels of plasma telomerase enzyme were measured using Enzyme-Linked Immunosorbent Assay. Skilled meditators had a better mindfulness level (p < 0.001) and quality of life (QOL; p < 0.001) than those in the comparison group. Similarly, higher plasma telomerase levels were observed in skilled meditators compared to non-meditators (p = 0.002). Trait mindfulness level and plasma telomerase level showed a significant relationship with the duration of meditation practice (p = 0.046 and p = 0.011, respectively). Regression analysis indicated that trait mindfulness level (p < 0.001) significantly predicts the plasma telomerase level. The findings of this comparative study add to the evidence on sustained benefits of meditation on wellbeing and healthy aging and supports incorporating meditation-based activities into lifestyle practices.
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Affiliation(s)
- Nirodhi Namika Dasanayaka
- Research Promotion and Facilitation Centre, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
- *Correspondence: Nirodhi Namika Dasanayaka,
| | - Nirmala Dushyanthi Sirisena
- Department of Anatomy, Genetics and Biomedical Informatics, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Nilakshi Samaranayake
- Department of Parasitology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
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22
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Chouliara Z, Barlow PG. Trust, inflammatory biomarkers and adversity: a novel investigation and clinical implications. BRITISH JOURNAL OF GUIDANCE & COUNSELLING 2022. [DOI: 10.1080/03069885.2022.2039899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Zoë Chouliara
- Independent Practice, Edinburgh, UK
- SE NHS Trust Ulster Hospital Psychology Post COVID Service, Locum Consultant, Belfast, UK
| | - Peter G. Barlow
- School of Applied Sciences, Edinburgh Napier University, Edinburgh, UK
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23
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Sun S, Sheridan M, Tyrka A, Donofry SD, Erickson K, Loucks E. Addressing the biological embedding of early life adversities (ELA) among adults through mindfulness: Proposed mechanisms and review of converging evidence. Neurosci Biobehav Rev 2022; 134:104526. [PMID: 34998833 PMCID: PMC8844271 DOI: 10.1016/j.neubiorev.2022.104526] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 12/21/2021] [Accepted: 01/03/2022] [Indexed: 12/18/2022]
Abstract
Early life adversities (ELA) are prevalent and have a profound and adverse impact across the lifespan, including on age-related health outcomes, yet interventions to remediate its adverse impact are scarce. This paper presents evidence for mindfulness training to reduce the elevated mental and physical health risks linked to ELA among adults by targeting biological mechanisms of ELA leading to these adverse health outcomes. We first provide a brief overview of ELA, its adverse health impacts, and mechanisms that might be responsible. Next, we review converging evidence that demonstrates that mindfulness training influences key biological pathways involved in ELA-linked negative health consequences, including (a) brain networks involved in self-regulation, (b) immunity and inflammation, (c) telomere biology, and (d) epigenetic modifications. Further, we review preliminary evidence from mindfulness-based trials that focused on populations impacted by ELA. We discuss limitations of this review and provide recommendations for future research. If effective, a mindfulness-based approach could be an important public health strategy for remediating the adverse mental and physical health consequences of ELA.
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Affiliation(s)
- Shufang Sun
- Department of Behavioral and Social Sciences, Brown University School of Public Health, United States; Mindfulness Center at Brown University, United States.
| | - Margaret Sheridan
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Audrey Tyrka
- Initiative on Stress, Trauma, and Resilience, Department of Psychiatry and Human Behavior, Brown University Alpert Medical School
| | | | - Kirk Erickson
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA,Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA,Center for the Neural Basis of Cognition, Pittsburgh, PA
| | - Eric Loucks
- Department of Behavioral and Social Sciences, Brown University School of Public Health,Mindfulness Center at Brown University
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Gauthier R, Vassail J, Croutaz JP, Raspaud C. Thérapies actives du mouvement corps-esprit et réadaptation respiratoire dans la BPCO. Rev Mal Respir 2022; 39:258-269. [DOI: 10.1016/j.rmr.2021.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 11/10/2021] [Indexed: 10/19/2022]
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25
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A short Mindfulness retreat can improve biological markers of stress and inflammation. Psychoneuroendocrinology 2022; 135:105579. [PMID: 34775250 DOI: 10.1016/j.psyneuen.2021.105579] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 10/29/2021] [Accepted: 10/29/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Mindfulness practice, a form of meditation, has shown benefit for psychological and physical health. In this study, we investigated the effect of an intensive period of Mindfulness practice on some biological mediators of stress and inflammation during a 3-day residential retreat. METHODS A total of 95 healthy individuals (aged 18-67) were recruited and randomized to a Mindfulness retreat arm or an active control arm. Before (t0) and after (t1) the intervention, all the participants were assessed for salivary cortisol levels and for a panel of pro- and anti-inflammatory cytokines measured in saliva. Psychometric measures on stress, anxiety and awareness were carried out using PSS, STAI-Y and MAAS questionnaires, respectively. RESULTS As to the within-group differences, we observed a statistically significant decrease in perceived stress (β = -8.85, p < 0.0001), and anxiety scores (β = -12.39, p < 0.0001), while awareness increased (β = 15.26, p < 0.0001) between t0 to t1 in retreat participants. In the mindfulness intervention group, we also observed a statistically significant reduction in the levels of pro-inflammatory cytokines IL-6 (β = -0.94 p = 0.001) and IL-8 (β = -176.40, p < 0.0001), and an increase in anti-inflammatory IL-10 (β = 0.89 p < 0.0001) levels at the end of the retreat. At t1 we observed a highly significant correlation between cortisol levels and both anxiety (r = 0.56, p < 0.0001) and perceived stress (r = 0.92, p < 0.0001) scores. CONCLUSIONS Mindfulness retreat participants showed a significant reduction in perceived stress and anxiety levels, as well as an improved balance of some key mediators of inflammatory states. Our data provide evidence that a mindfulness retreat may be effective in improving physical and mental health. Future studies with larger numbers of subjects and follow-up periods may examine mindfulness practice as a non-pharmacological alternative to promote stress reduction and overall health and wellbeing.
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de Melo Reis RA, Isaac AR, Freitas HR, de Almeida MM, Schuck PF, Ferreira GC, Andrade-da-Costa BLDS, Trevenzoli IH. Quality of Life and a Surveillant Endocannabinoid System. Front Neurosci 2021; 15:747229. [PMID: 34776851 PMCID: PMC8581450 DOI: 10.3389/fnins.2021.747229] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/01/2021] [Indexed: 12/11/2022] Open
Abstract
The endocannabinoid system (ECS) is an important brain modulatory network. ECS regulates brain homeostasis throughout development, from progenitor fate decision to neuro- and gliogenesis, synaptogenesis, brain plasticity and circuit repair, up to learning, memory, fear, protection, and death. It is a major player in the hypothalamic-peripheral system-adipose tissue in the regulation of food intake, energy storage, nutritional status, and adipose tissue mass, consequently affecting obesity. Loss of ECS control might affect mood disorders (anxiety, hyperactivity, psychosis, and depression), lead to drug abuse, and impact neurodegenerative (Alzheimer's, Parkinson, Huntington, Multiple, and Amyotrophic Lateral Sclerosis) and neurodevelopmental (autism spectrum) disorders. Practice of regular physical and/or mind-body mindfulness and meditative activities have been shown to modulate endocannabinoid (eCB) levels, in addition to other players as brain-derived neurotrophic factor (BDNF). ECS is involved in pain, inflammation, metabolic and cardiovascular dysfunctions, general immune responses (asthma, allergy, and arthritis) and tumor expansion, both/either in the brain and/or in the periphery. The reason for such a vast impact is the fact that arachidonic acid, a precursor of eCBs, is present in every membrane cell of the body and on demand eCBs synthesis is regulated by electrical activity and calcium shifts. Novel lipid (lipoxins and resolvins) or peptide (hemopressin) players of the ECS also operate as regulators of physiological allostasis. Indeed, the presence of cannabinoid receptors in intracellular organelles as mitochondria or lysosomes, or in nuclear targets as PPARγ might impact energy consumption, metabolism and cell death. To live a better life implies in a vigilant ECS, through healthy diet selection (based on a balanced omega-3 and -6 polyunsaturated fatty acids), weekly exercises and meditation therapy, all of which regulating eCBs levels, surrounded by a constructive social network. Cannabidiol, a diet supplement has been a major player with anti-inflammatory, anxiolytic, antidepressant, and antioxidant activities. Cognitive challenges and emotional intelligence might strengthen the ECS, which is built on a variety of synapses that modify human behavior. As therapeutically concerned, the ECS is essential for maintaining homeostasis and cannabinoids are promising tools to control innumerous targets.
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Affiliation(s)
- Ricardo Augusto de Melo Reis
- Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alinny Rosendo Isaac
- Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Hércules Rezende Freitas
- Laboratory of Neuroenergetics and Inborn Errors of Metabolism, Institute of Medical Biochemistry Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana Macedo de Almeida
- Laboratory of Molecular Endocrinology, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patricia Fernanda Schuck
- Laboratory of Neuroenergetics and Inborn Errors of Metabolism, Institute of Medical Biochemistry Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo Costa Ferreira
- Laboratory of Neuroenergetics and Inborn Errors of Metabolism, Institute of Medical Biochemistry Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Isis Hara Trevenzoli
- Laboratory of Molecular Endocrinology, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Su Z, Zhao J. Comparative Study of the Effects of Tai Chi and Square Dance on Immune Function, Physical Health, and Life Satisfaction in Urban Empty-Nest Older Adults. Front Physiol 2021; 12:721758. [PMID: 34675816 PMCID: PMC8523935 DOI: 10.3389/fphys.2021.721758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To compare the effects of Tai Chi and Square dance on immune function, physical health, and life satisfaction in urban, empty-nest older adults. Methods: This cross-sectional study included 249 older adults (60–69 years) who were categorized into Tai Chi (n = 81), Square dance (n = 90), and control groups (n = 78). We evaluated immunoglobulin G (IgG) and interleukin-2 (IL-2) levels by enzyme-linked immunosorbent assay (ELISA), natural killer (NK) cell cytotoxicity by MTT assay, physical health indices by physical fitness levels, and life satisfaction by Life Satisfaction Index A (LSIA) scores. Results: Immune function, physical health, and life satisfaction in older adults in the Tai Chi and Square dance groups were significantly better than those in the control group (P < 0.05). Regarding immune function and physical health, the Tai Chi group exhibited significantly higher levels of IgG (15.41 ± 0.26 g/L vs. 11.99 ± 0.35 g/L, P < 0.05), IL-2 (4.60 ± 0.20 ng/mL vs. 4.45 ± 0.21 ng/mL, P < 0.05), and NK cell cytotoxicity (0.28 ± 0.02 vs. 0.22 ± 0.02, P < 0.05) than the square dance group, significantly lower waist-to-hip ratio (0.87 ± 0.02 vs. 0.89 ± 0.02, P < 0.05), resting pulse (78.4 ± 4.6 beats/min vs. 81.0 ± 3.1 beats/min, P < 0.05), systolic blood pressure (132.0 ± 5.2 mmHg vs. 136.2 ± 3.2 mmHg, P < 0.05), diastolic blood pressure (80.0 ± 2.6 mmHg vs. 83.0 ± 2.7 mmHg, P < 0.05), and significantly higher vital capacity (2978.0 ± 263.0 mL vs. 2628.3 ± 262.8 mL, P < 0.05) and duration of one-leg standing with eyes closed (16.2 ± 1.9 s vs. 12.0 ± 1.7 s). However, there was no significant difference in LSIA scores between the Tai Chi and Square dance groups (12.05 ± 1.96 vs. 13.07 ± 1.51, P > 0.05). Further, there was a significant correlation between LSIA scores and immune function (r = 0.50, P = 0.00) and physical health (r = 0.64, P = 0.00). Conclusion: (1) Both Tai Chi and square dance practitioners had better health outcomes, compared with sedentary individuals; (2) Tai Chi practitioners had better physical health and immune function than Square dance practitioners. (3) Tai Chi and Square dance exercises had similar effects on life satisfaction among urban empty-nest older adults. Suggestions: For urban empty-nest older adults who want to have better physical health and immune function, long-term Tai Chi exercise may be a better choice; however, those who are concerned about life satisfaction can choose either Tai Chi or Square dance exercise.
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Affiliation(s)
- ZhongJun Su
- College of Physical Education and Health, Wenzhou University, Wenzhou, China
| | - JieXiu Zhao
- China Institute of Sport Science, Beijing, China
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Fritz MM, Walsh LC, Cole SW, Epel E, Lyubomirsky S. Kindness and cellular aging: A pre-registered experiment testing the effects of prosocial behavior on telomere length and well-being. Brain Behav Immun Health 2021; 11:100187. [PMID: 34589726 PMCID: PMC8474583 DOI: 10.1016/j.bbih.2020.100187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 01/02/2023] Open
Abstract
Objective Prosocial behavior can improve psychological well-being and physical health. However, the underlying biological mechanisms that mediate the relationship between prosociality and health remain unclear. In this pre-registered experiment, we tested whether a 4-week kindness intervention could slow leukocyte telomere shortening and increase well-being. Methods Community adults (N = 230) were randomly assigned to complete 1 of 3 activities, each week for 4 weeks: to perform 3 kind acts for other people, to perform 3 kind acts for themselves, or to list daily activities. At baseline and post-intervention, participants came to the lab to provide a small dried blood spot (DBS) sample via finger prick for analysis of telomere length. Participants completed psychological measures (e.g., loneliness, life satisfaction) at baseline, post-intervention, and at the 2-week follow up. Results Participants who performed kind acts for others did not demonstrate hypothesized changes in well-being, nor in telomere length, relative to controls. Exploratory analyses revealed that, relative to controls, participants who did kind acts for others showed reductions in loneliness through the 2-week follow up. Conclusions The salubrious effects of prosocial behavior in the short term are not likely due to the inhibition of cellular aging (at least as indexed by telomere length). However, extending kindness to others holds promise as a future research direction for interventions to alleviate loneliness. Prosocial behavior is associated with better health, but mechanisms remain unclear. We report a pre-registered investigation of prosocial behavior and telomere length. A 4-week prosocial behavior intervention did not slow rates of telomere shortening. Performing prosocial behavior for others was linked with reductions in loneliness. Prosocial behavior may reduce loneliness but does not appear to impact telomeres.
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Affiliation(s)
- Megan M Fritz
- Department of Psychology, University of California, Riverside, Riverside, CA, USA
| | - Lisa C Walsh
- Department of Psychology, University of California, Riverside, Riverside, CA, USA
| | - Steven W Cole
- Department of Psychiatry, University of California, Los Angeles, Los Angeles, CA, USA
| | - Elissa Epel
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
| | - Sonja Lyubomirsky
- Department of Psychology, University of California, Riverside, Riverside, CA, USA
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Guzman-Martinez L, Calfío C, Farias GA, Vilches C, Prieto R, Maccioni RB. New Frontiers in the Prevention, Diagnosis, and Treatment of Alzheimer's Disease. J Alzheimers Dis 2021; 82:S51-S63. [PMID: 33523002 DOI: 10.3233/jad-201059] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
One of the major puzzles in medical research and public health systems worldwide is Alzheimer's disease (AD), reaching nowadays a prevalence near 50 million people. This is a multifactorial brain disorder characterized by progressive cognitive impairment, apathy, and mood and neuropsychiatric disorders. The main risk of AD is aging; a normal biological process associated with a continuum dynamic involving a gradual loss of people's physical capacities, but with a sound experienced view of life. Studies suggest that AD is a break from normal aging with changes in the powerful functional capacities of neurons as well as in the mechanisms of neuronal protection. In this context, an important path has been opened toward AD prevention considering that there are elements of nutrition, daily exercise, avoidance of toxic substances and drugs, an active social life, meditation, and control of stress, to achieve healthy aging. Here, we analyze the involvement of such factors and how to control environmental risk factors for a better quality of life. Prevention as well as innovative screening programs for early detection of the disease using reliable biomarkers are becoming critical to control the disease. In addition, the failure of traditional pharmacological treatments and search for new drugs has stimulated the emergence of nutraceutical compounds in the context of a "multitarget" therapy, as well as mindfulness approaches shown to be effective in the aging, and applied to the control of AD. An integrated approach involving all these preventive factors combined with novel pharmacological approaches should pave the way for the future control of the disease.
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Affiliation(s)
- Leonardo Guzman-Martinez
- Laboratory of Neuroscience and Functional Medicine, International Center for Biomedicine and Faculty of Sciences, University of Chile, Santiago, Chile
| | - Camila Calfío
- Laboratory of Neuroscience and Functional Medicine, International Center for Biomedicine and Faculty of Sciences, University of Chile, Santiago, Chile
| | - Gonzalo A Farias
- Department of Neurology, Faculty of Medicine North, University of Chile, Santiago, Chile
| | | | - Raul Prieto
- Traumatological Institute of Chile, Santiago, Chile
| | - Ricardo B Maccioni
- Laboratory of Neuroscience and Functional Medicine, International Center for Biomedicine and Faculty of Sciences, University of Chile, Santiago, Chile.,Department of Neurology, Faculty of Medicine East, University of Chile, Santiago, Chile
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Rapid changes of miRNAs-20, -30, -410, -515, -134, and -183 and telomerase with psychological activity: A one year study on the relaxation response and epistemological considerations. J Tradit Complement Med 2021; 11:409-418. [PMID: 34522635 PMCID: PMC8427477 DOI: 10.1016/j.jtcme.2021.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 11/22/2022] Open
Abstract
Background and aim Mental stress represents a pivotal factor in cardiovascular diseases. The mechanism by which stress produces its deleterious effects is still under study, but one of the most explored pathways is inflammation-aging and cell senescence. In this scenario, circulating microRNAs appear to be regulatory elements of the telomerase activity and alternative splicing within the nuclear factor kappa-light-chain-enhancer (NF-κB) network. Anti-stress techniques appeared to be able to slow down the inflammatory and aging processes. As we recently verified, the practice of the relaxation response (RR) counteracted psychological stress and determined favorable changes of the NF-κB, p53, and toll-like receptor-4 (TLR-4) gene expression and in neurotransmitters, hormones, cytokines, and inflammatory circulating microRNAs. We aimed to verify a possible change in the serum levels of six other micro-RNAs of cardiovascular interest, involved in cell senescence and in the NF-κB network (miRNAs -20, -30, -410, -515, -134, and -183), and tested the activity of telomerase in peripheral blood mononuclear cells (PBMCs). Experimental procedure We measured the aforementioned molecules in the serum of patients with ischemic heart disease (and healthy controls) immediately before and after a relaxation response session, three times (after the baseline), in one year of follow-up. Results According to our data, the miRNA-20 and -30 levels and PBMCs-telomerase activity increased during the RR while the -410 and -515 levels decreased. During the RR sessions, both miRNA-134 and -183 decreased. Conclusion The mediators considered in this exploratory work appeared to vary rapidly with the psychological activity (in particular when focused on relaxation techniques) showing that psychological activity should be part of the future research on epigenetics. Epistemological perspectives are also discussed.
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Pousa PA, Souza RM, Melo PHM, Correa BHM, Mendonça TSC, Simões-e-Silva AC, Miranda DM. Telomere Shortening and Psychiatric Disorders: A Systematic Review. Cells 2021; 10:1423. [PMID: 34200513 PMCID: PMC8227190 DOI: 10.3390/cells10061423] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 12/23/2022] Open
Abstract
Telomeres are aging biomarkers, as they shorten while cells undergo mitosis. The aim of this study was to evaluate whether psychiatric disorders marked by psychological distress lead to alterations to telomere length (TL), corroborating the hypothesis that mental disorders might have a deeper impact on our physiology and aging than it was previously thought. A systematic search of the literature using MeSH descriptors of psychological distress ("Traumatic Stress Disorder" or "Anxiety Disorder" or "depression") and telomere length ("cellular senescence", "oxidative stress" and "telomere") was conducted on PubMed, Cochrane Library and ScienceDirect databases. A total of 56 studies (113,699 patients) measured the TL from individuals diagnosed with anxiety, depression and posttraumatic disorders and compared them with those from healthy subjects. Overall, TL negatively associates with distress-related mental disorders. The possible underlying molecular mechanisms that underly psychiatric diseases to telomere shortening include oxidative stress, inflammation and mitochondrial dysfunction linking. It is still unclear whether psychological distress is either a cause or a consequence of telomere shortening.
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Affiliation(s)
- Pedro A. Pousa
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 30130-100, Brazil; (P.A.P.); (R.M.S.); (P.H.M.M.); (B.H.M.C.); (T.S.C.M.); (A.C.S.-e.-S.)
| | - Raquel M. Souza
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 30130-100, Brazil; (P.A.P.); (R.M.S.); (P.H.M.M.); (B.H.M.C.); (T.S.C.M.); (A.C.S.-e.-S.)
| | - Paulo Henrique M. Melo
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 30130-100, Brazil; (P.A.P.); (R.M.S.); (P.H.M.M.); (B.H.M.C.); (T.S.C.M.); (A.C.S.-e.-S.)
| | - Bernardo H. M. Correa
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 30130-100, Brazil; (P.A.P.); (R.M.S.); (P.H.M.M.); (B.H.M.C.); (T.S.C.M.); (A.C.S.-e.-S.)
| | - Tamires S. C. Mendonça
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 30130-100, Brazil; (P.A.P.); (R.M.S.); (P.H.M.M.); (B.H.M.C.); (T.S.C.M.); (A.C.S.-e.-S.)
| | - Ana Cristina Simões-e-Silva
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 30130-100, Brazil; (P.A.P.); (R.M.S.); (P.H.M.M.); (B.H.M.C.); (T.S.C.M.); (A.C.S.-e.-S.)
| | - Débora M. Miranda
- Department of Pediatrics, Laboratory of Molecular Medicine, UFMG, Belo Horizonte, Minas Gerais 30130-100, Brazil
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Zhang Z, Chen W. Longitudinal Associations Between Physical Activity and Purpose in Life Among Older Adults: A Cross-Lagged Panel Analysis. J Aging Health 2021; 33:941-952. [PMID: 34002652 DOI: 10.1177/08982643211019508] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: The purpose of the current study was to examine the bidirectional relationship between physical activity (PA) and purpose in life in an older adult sample using longitudinal data. Method: Data were collected from three waves (2006, 2010, and 2014) of the Health and Retirement Study. A total of 4591 participants who had complete information of PA and purpose in life at baseline were included in the current study. A series of cross-lagged models were tested separately for vigorous-intensity PA, moderate-intensity PA, and light-intensity PA. Results: While higher levels of purpose in life were associated with more frequent engagement in future vigorous-intensity PA, moderate-intensity PA, and light-intensity PA, none of the PA variables predicted subsequent purpose in life. Discussion: The results did not support a reciprocal relationship between PA and purpose in life in older adults. It is more likely that purpose in life predicts PA, rather than vice versa.
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Affiliation(s)
- Zhanjia Zhang
- Department of Physical Education, 1259Peking University, Beijing, China.,School of Kinesiology, 1259University of Michigan, Ann Arbor, MI, USA
| | - Weiyun Chen
- School of Kinesiology, 1259University of Michigan, Ann Arbor, MI, USA
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Mei Z, Lori A, Vattathil SM, Boyle PA, Bradley B, Jin P, Bennett DA, Wingo TS, Wingo AP. Important Correlates of Purpose in Life Identified Through a Machine Learning Approach. Am J Geriatr Psychiatry 2021; 29:488-498. [PMID: 33046355 PMCID: PMC8004535 DOI: 10.1016/j.jagp.2020.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVE A wealth of evidence has linked purpose in life (PiL) to better mental and physical health and healthy aging. Here, the authors aimed to determine important correlates of PiL using a machine learning approach. METHODS Participants were recruited from retirement communities by the Rush Memory and Aging Project and assessed for childhood experience, adulthood sociodemographic factors (e.g., education, income, marital status), lifestyle and health behavior (e.g., cognitively stimulating activities, exercise, social activities, social network size), psychological factors (e.g., depression, loneliness, perceived discrimination, perceived social support), personality traits (e.g., PiL, harm avoidance), and medical conditions. Elastic Net was implemented to identify important correlates of PiL. RESULTS A total of 1,839 participants were included in our analysis. Among the 23 variables provided to Elastic Net, 10 were identified as important correlates of PiL. In order of decreasing effect size, factors associated with lower PiL were loneliness, harm avoidance, older age, and depressive symptoms, while those associated with greater PiL were perceived social support, more social activities, more years of education, higher income, intact late-life cognitive performance, and more middle-age cognitive activities. CONCLUSION Our findings identify potentially important modifiable factors as targets for intervention strategies to enhance PiL.
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Affiliation(s)
- Zhen Mei
- Department of Neurology, Emory University School of Medicine, Atlanta, GA; Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Adriana Lori
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA
| | - Selina M Vattathil
- Department of Neurology, Emory University School of Medicine, Atlanta, GA
| | - Patricia A Boyle
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL
| | - Bekh Bradley
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA; Division of Mental Health, Atlanta VA Medical Center, Decatur, GA
| | - Peng Jin
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL
| | - Thomas S Wingo
- Department of Neurology, Emory University School of Medicine, Atlanta, GA; Department of Human Genetics, Emory University School of Medicine, Atlanta, GA.
| | - Aliza P Wingo
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA; Division of Mental Health, Atlanta VA Medical Center, Decatur, GA.
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Oyler DL, Price-Blackshear MA, Pratscher SD, Bettencourt BA. Mindfulness and intergroup bias: A systematic review. GROUP PROCESSES & INTERGROUP RELATIONS 2021. [DOI: 10.1177/1368430220978694] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
People’s proclivity for favoring their ingroups over outgroups has negative consequences for individuals, groups, and societies. Social psychologists have explored a variety of techniques to reduce these intergroup biases. Emerging research suggests that mindfulness may be effective for this purpose. Mindfulness is defined as present-moment attention and awareness with an accepting attitude, and it is often cultivated through meditation. Our systematic review of the mindfulness-intergroup literature suggests that, across the heterogeneity of paradigms, mindfulness attenuates intergroup bias. Supporting this supposition, for all studies in the current review, regardless of operationalization of mindfulness (i.e., mindfulness-based intervention, brief mindfulness induction, expert meditators, dispositional mindfulness), the overall effect size was g = +.29 ( k-number of studies = 36; 95% CI [0.20, 0.39]; Z = 5.94, p < .0001), suggesting a small but significant effect of mindfulness on improved levels of intergroup bias. In the current work, we review the eligible studies and their findings in detail and conclude by discussing critical issues and implications for future research.
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Vucetich JA, Macdonald EA, Burnham D, Bruskotter JT, Johnson DDP, Macdonald DW. Finding Purpose in the Conservation of Biodiversity by the Commingling of Science and Ethics. Animals (Basel) 2021; 11:837. [PMID: 33809534 PMCID: PMC7998897 DOI: 10.3390/ani11030837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/12/2021] [Indexed: 11/24/2022] Open
Abstract
Averting the biodiversity crisis requires closing a gap between how humans tend to behave, individually and collectively, and how we ought to behave-"ought to" in the sense of behaviors required to avert the biodiversity crisis. Closing that gap requires synthesizing insight from ethics with insights from social and behavioral sciences. This article contributes to that synthesis, which presents in several provocative hypotheses: (i) Lessening the biodiversity crisis requires promoting pro-conservation behavior among humans. Doing so requires better scientific understanding of how one's sense of purpose in life affects conservation-relevant behaviors. Psychology and virtue-focused ethics indicate that behavior is importantly influenced by one's purpose. However, conservation psychology has neglected inquiries on (a) the influence of one's purpose (both the content and strength of one's purpose) on conservation-related behaviors and (b) how to foster pro-conservation purposes; (ii) lessening the biodiversity crisis requires governance-the regulation of behavior by governments, markets or other organization through various means, including laws, norms, and power-to explicitly take conservation as one of its fundamental purposes and to do so across scales of human behaviors, from local communities to nations and corporations; (iii) lessening the biodiversity crisis requires intervention via governance to nudge human behavior in line with the purpose of conservation without undue infringement on other basic values. Aligning human behavior with conservation is inhibited by the underlying purpose of conservation being underspecified. Adequate specification of conservation's purpose will require additional interdisciplinary research involving insights from ethics, social and behavioral sciences, and conservation biology.
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Affiliation(s)
- John A. Vucetich
- College of Forest Resources and Environmental Sciences, Michigan Technological University, Houghton, MI 49931, USA
| | - Ewan A. Macdonald
- Wildlife Conservation Research Unit, Department of Zoology, Recanati-Kaplan Centre, University of Oxford, Oxfordshire OX13 5QL, UK; (E.A.M.); (D.B.); (D.W.M.)
- Saïd Business School, University of Oxford, Oxford OX1 1HP, UK
| | - Dawn Burnham
- Wildlife Conservation Research Unit, Department of Zoology, Recanati-Kaplan Centre, University of Oxford, Oxfordshire OX13 5QL, UK; (E.A.M.); (D.B.); (D.W.M.)
| | - Jeremy T. Bruskotter
- Terrestrial Wildlife Ecology Lab, School Environment and Natural Resources, The Ohio State University, Columbus, OH 43210, USA;
| | - Dominic D. P. Johnson
- Department of Politics and International Relations, University of Oxford, Oxford OX1 3UQ, UK;
| | - David W. Macdonald
- Wildlife Conservation Research Unit, Department of Zoology, Recanati-Kaplan Centre, University of Oxford, Oxfordshire OX13 5QL, UK; (E.A.M.); (D.B.); (D.W.M.)
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Duckworth A, Gibbons MA, Allen RJ, Almond H, Beaumont RN, Wood AR, Lunnon K, Lindsay MA, Wain LV, Tyrrell J, Scotton CJ. Telomere length and risk of idiopathic pulmonary fibrosis and chronic obstructive pulmonary disease: a mendelian randomisation study. THE LANCET. RESPIRATORY MEDICINE 2021; 9:285-294. [PMID: 33197388 DOI: 10.1016/s2213-2600(20)30364-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/03/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease accounting for 1% of UK deaths. In the familial form of pulmonary fibrosis, causal genes have been identified in about 30% of cases, and a majority of these causal genes are associated with telomere maintenance. Prematurely shortened leukocyte telomere length is associated with IPF and chronic obstructive pulmonary disease (COPD), a disease with similar demographics and shared risk factors. Using mendelian randomisation, we investigated evidence supporting a causal role for short telomeres in IPF and COPD. METHODS Mendelian randomisation inference of telomere length causality was done for IPF (up to 1369 cases) and COPD (13 538 cases) against 435 866 controls of European ancestry in UK Biobank. Polygenic risk scores were calculated and two-sample mendelian randomisation analyses were done using seven genetic variants previously associated with telomere length, with replication analysis in an IPF cohort (2668 cases vs 8591 controls) and COPD cohort (15 256 cases vs 47 936 controls). FINDINGS In the UK Biobank, a genetically instrumented one-SD shorter telomere length was associated with higher odds of IPF (odds ratio [OR] 4·19, 95% CI 2·33-7·55; p=0·0031) but not COPD (1·07, 0·88-1·30; p=0·51). Similarly, an association was found in the IPF replication cohort (12·3, 5·05-30·1; p=0·0015) and not in the COPD replication cohort (1·04, 0·71-1·53; p=0·83). Meta-analysis of the two-sample mendelian randomisation results provided evidence inferring that shorter telomeres cause IPF (5·81 higher odds of IPF, 95% CI 3·56-9·50; p=2·19 × 10-12). There was no evidence to infer that telomere length caused COPD (OR 1·07, 95% CI 0·90-1·27; p=0·46). INTERPRETATION Cellular senescence is hypothesised as a major driving force in IPF and COPD; telomere shortening might be a contributory factor in IPF, suggesting divergent mechanisms in COPD. Defining a key role for telomere shortening enables greater focus in telomere-related diagnostics, treatments, and the search for a cure in IPF. Investigation of therapies that improve telomere length is warranted. FUNDING Medical Research Council.
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Affiliation(s)
- Anna Duckworth
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK; Exeter Patients in Collaboration for PF, Exeter, UK
| | - Michael A Gibbons
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK; Exeter Patients in Collaboration for PF, Exeter, UK; Respiratory Medicine Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Richard J Allen
- Department of Health Sciences, University of Leicester, Leicester, UK
| | | | - Robin N Beaumont
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK
| | - Andrew R Wood
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK
| | - Katie Lunnon
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK
| | - Mark A Lindsay
- Department of Pharmacy and Pharmacology, University of Bath, Bath, UK
| | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, UK; National Institute for Health Research, Leicester Respiratory Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Jess Tyrrell
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK
| | - Chris J Scotton
- Institute of Biomedical & Clinical Science, College of Medicine & Health, University of Exeter, Exeter, UK; Exeter Patients in Collaboration for PF, Exeter, UK.
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Abstract
OBJECTIVE Increasing meaning in life (MiL) among people experiencing disease or adversity may improve coping and resilience. The purpose of this review is to characterize the effects of MiL interventions. DATA SOURCE A systematic search of PubMed, PsycInfo, and Google Scholar was conducted encompassing the following parameters: meaning in life, purpose in life, or sense of purpose with randomized controlled trials. STUDY INCLUSION & EXCLUSION CRITERIA Randomized controlled trials (RCTs) of interventions with at least one outcome that measured improvement in MiL and were published in English between January 2000 and January 2020. DATA EXTRACTION & SYNTHESIS 33 randomized controlled trials (k = 35) were identified. Data were coded by authors and a research assistant for intervention type, control group type, and risk of bias. The random effects model of Review Manager 5.3 was used to produce SMD and evaluate heterogeneity. RESULTS The effect size for studies with a passive control group was SMD = 0.85 (95% CI 0.54 to 1.17) and for studies with an active control group was SMD = .032 (95% CI 0.09 to 0.55). Mindfulness programs produced the largest effect size (1.57) compared to passive controls, while narrative programs produced the largest effect relative to active controls (0.61). There was considerable heterogeneity in most estimates. CONCLUSION Several interventions increase MiL, including some that are relatively brief and do not require licensed professionals.
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Affiliation(s)
- Nicholas Manco
- 129532Yale Child Study Center, Yale University, New Haven, CT, USA
| | - Sherry Hamby
- Department of Psychology, 7303University of the South, Sewanee, TN, USA
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Blasche G, deBloom J, Chang A, Pichlhoefer O. Is a meditation retreat the better vacation? effect of retreats and vacations on fatigue, emotional well-being, and acting with awareness. PLoS One 2021; 16:e0246038. [PMID: 33556137 PMCID: PMC7869997 DOI: 10.1371/journal.pone.0246038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 01/13/2021] [Indexed: 11/18/2022] Open
Abstract
It is well established that leisure vacations markedly improve well-being, but that these effects are only of short duration. The present study aimed to investigate whether vacation effects would be more lasting if individuals practiced meditation during the leisure episode. Meditation is known to improve well-being durably, among others, by enhancing the mental faculty of mindfulness. In this aim, leisure vacations during which individuals practiced meditation to some extent were compared with holidays not including any formal meditation practice as well as with meditation retreats (characterized by intense meditation practice) utilizing a naturalistic observational design. Fatigue, well-being, and mindfulness were assessed ten days before, ten days after, and ten weeks after the stays in a sample of 120 individuals accustomed to meditation practices. To account for differences in the experience of these stays, recovery experiences were additionally assessed. Ten days after the stay, there were no differences except for an increase in mindfulness for those practicing meditation. Ten weeks after the stay, meditation retreats and vacations including meditation were associated with greater increases in mindfulness, lower levels of fatigue, and higher levels of well-being than an "ordinary" vacation during which meditation was not practiced. The finding suggests that the inclusion of meditation practice during vacation could help alleviate vacations' greatest pitfall, namely the rapid decline of its positive effects.
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Affiliation(s)
- Gerhard Blasche
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, Vienna, Austria
- * E-mail:
| | - Jessica deBloom
- Department of Psychology, Faculty of Social Sciences, Tampere University, Tampere, Finland
- Faculty of Economics & Business, University of Groningen, Groningen, Netherlands
| | - Adrienne Chang
- Department of Sociology and Gerontology, Miami University, Miamí, Florida, United States of America
| | - Otto Pichlhoefer
- Department of General Practice and Family Medicine, Center for Public Health, Medical University of Vienna, Vienna, Austria
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Emery CR, Xie QW, Chan JSM, Leng LL, Chan CHY, So KF, Li A, Po KKT, Chouliara Z, Chan CLW, Choi AWM, Yuen LP, Ku KS, Kung W, Ng SM. The Counterintuitive Relationship between Telomerase Activity and Childhood Emotional Abuse: Culture and Complexity. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18041619. [PMID: 33567728 PMCID: PMC7914855 DOI: 10.3390/ijerph18041619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 01/21/2023]
Abstract
BACKGROUND: A burgeoning literature has found relationships between telomere length, telomerase activity, and human health and longevity. Although some research links a history of childhood adversity with shortened telomere length, our review found no prior research on the relationship between child maltreatment history and telomerase activity in adulthood. We hypothesized a negative relationship between child maltreatment and telomerase activity and hypothesized that the association would be moderated by sex. METHODS: These relationships were tested on a sample of 262 Hong Kong Chinese adults (200 females versus 62 males) with mild to moderate depression. RESULTS: Counterintuitively, emotional abuse was positively associated with telomerase activity, while other maltreatment types were non-significant. The positive relationship between emotional abuse and telomerase activity was significantly moderated by the sex of the participant. CONCLUSIONS: We advance two possible explanations for this finding (1) a culturally informed resilience explanation and (2) a homeostatic complexity explanation. The two explanations are not mutually exclusive. This trial is registered under Hong Kong Clinical Trial Register number HKCTR-1929. SIGNIFICANCE STATEMENT: Emotional abuse was significantly positively associated with telomerase activity. There are at least two non-mutually exclusive explanations for the findings. Simply put, either (1) in the cultural context of Hong Kong emotional abuse was not a risk factor, and/or (2) the conceptualization of telomerase activity as a straightforward indicator of longevity is overly simplistic. The first story we might term a “resilience explanation” while the second we might call a “homeostatic complexity” story.
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Affiliation(s)
- Clifton R. Emery
- SWSA, University of Hong Kong, Pok Fu Lam, Hong Kong; (L.-L.L.); (C.H.Y.C.); (C.L.W.C.)
- Correspondence: (C.R.E.); (S.-M.N.)
| | - Qian-Wen Xie
- School of Public Affairs, Zhejiang University, Hangzhou 310027, China;
| | - Jessie S. M. Chan
- Department of Psychology, University of Hong Kong, Pok Fu Lam, Hong Kong;
| | - Ling-Li Leng
- SWSA, University of Hong Kong, Pok Fu Lam, Hong Kong; (L.-L.L.); (C.H.Y.C.); (C.L.W.C.)
| | - Celia H. Y. Chan
- SWSA, University of Hong Kong, Pok Fu Lam, Hong Kong; (L.-L.L.); (C.H.Y.C.); (C.L.W.C.)
| | - Kwok-Fai So
- State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Pok Fu Lam, Hong Kong; (K.-F.S.); (K.K.T.P.)
- Joint International Research Laboratory of CNS Regeneration Ministry of Education, Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, China;
| | - Ang Li
- Joint International Research Laboratory of CNS Regeneration Ministry of Education, Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, China;
| | - Kevin K. T. Po
- State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Pok Fu Lam, Hong Kong; (K.-F.S.); (K.K.T.P.)
| | - Zoe Chouliara
- Independent Practice, Edinburgh, Midlothian EH7, UK;
| | - Cecilia Lai Wan Chan
- SWSA, University of Hong Kong, Pok Fu Lam, Hong Kong; (L.-L.L.); (C.H.Y.C.); (C.L.W.C.)
| | - Anna W. M. Choi
- Department of Social and Behavioral Sciences, City University of Hong Kong, Kowloon, Hong Kong;
| | - L. P. Yuen
- International Association for Health and Yangsheng, 20 Venturi Rd., Happy Valley, Hong Kong;
| | - Kam Shing Ku
- Haven of Hope Haven of Hope Christian Service, 7 Haven of Hope Rd, Hong Kong;
| | - Winnie Kung
- Graduate School of Social Service, Fordham University, New York, NY 10023, USA;
| | - Siu-Man Ng
- SWSA, University of Hong Kong, Pok Fu Lam, Hong Kong; (L.-L.L.); (C.H.Y.C.); (C.L.W.C.)
- Correspondence: (C.R.E.); (S.-M.N.)
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40
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Quast LF, Gutiérrez-Colina AM, Cushman GK, Rea KE, Eaton CK, Lee JL, George RP, Blount RL. Adherence Barriers for Adolescent and Young Adult Transplant Recipients: Relations to Personality. J Pediatr Psychol 2021; 45:540-549. [PMID: 32291448 DOI: 10.1093/jpepsy/jsaa017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 02/21/2020] [Accepted: 02/28/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Much of the extant literature on adherence barriers has focused on modifiable factors (e.g., knowledge, social support); however, less is known about how barriers may be associated with relatively stable constructs, such as personality traits. The current study examines associations between personality (i.e., agreeableness, conscientiousness, neuroticism) and adherence barriers in a group of adolescent and young adult (AYA) solid organ transplant recipients. Demonstrating associations between barriers and personality may help in understanding why barriers are stable over time. Additionally, different personality traits may relate to different types of barriers. METHODS The sample included 90 AYAs (Mage = 17.31; SD = 2.05; 58% male) who received a kidney (n = 36), liver (n = 29), or heart (n = 25) transplant at least 1 year prior to study enrollment. AYAs completed the Agreeableness, Conscientiousness, and Neuroticism scales from the NEO Five-Factor Inventory and the Adolescent Medication Barriers Scale (AMBS). RESULTS Lower levels of agreeableness and conscientiousness and higher levels of neuroticism were related to higher self-reported barrier scores (AMBS; r's = .31- .53, p's < .001). The relations differed by personality factor and barrier type. CONCLUSION Adherence barriers showed medium to large associations with personality traits that are known to be relatively stable. Our findings indicate that the temporal stability of barriers to adherence may be due in part to their association with relatively enduring personality characteristics.
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Affiliation(s)
| | - Ana M Gutiérrez-Colina
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center
| | | | | | | | - Jennifer L Lee
- Emory University School of Medicine.,Children's Healthcare of Atlanta
| | - Roshan P George
- Emory University School of Medicine.,Children's Healthcare of Atlanta
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41
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The mediating role of openness to experience and curiosity in the relationship between mindfulness and meaning in life: evidence from four countries. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-021-01430-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Crego A, Yela JR, Gómez-Martínez MÁ, Riesco-Matías P, Petisco-Rodríguez C. Relationships between Mindfulness, Purpose in Life, Happiness, Anxiety, and Depression: Testing a Mediation Model in a Sample of Women. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:925. [PMID: 33494471 PMCID: PMC7908241 DOI: 10.3390/ijerph18030925] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 11/17/2022]
Abstract
Mindfulness is connected to positive outcomes related to mental health and well-being. However, the psychological mechanisms that account for these relationships are largely unknown. A multiple-step multiple mediator structural equation modeling (SEM) model was tested with mindfulness as the independent variable; purpose in life and behavioral activation as serial mediators; and happiness, anxiety, and depression as outcome measures. Data were obtained from 1267 women. Higher mindfulness was associated with higher levels of happiness and lower anxiety and depression symptoms. The association of mindfulness with the outcome variables could be partially accounted for by purpose in life and behavioral activation. The SEM model explained large proportions of variance in happiness (50%), anxiety (34%), and depression (44%) symptoms. Mindfulness is associated with both a sense of purpose in life and engagement in activities, which are also connected with positive outcomes. Moreover, having purposes in life is linked to higher levels of behavioral activation.
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Affiliation(s)
- Antonio Crego
- Department of Psychology, Pontifical University of Salamanca, Calle de la Compañía 5, 37002 Salamanca, Spain; (J.R.Y.); (M.Á.G.-M.); (P.R.-M.)
| | - José Ramón Yela
- Department of Psychology, Pontifical University of Salamanca, Calle de la Compañía 5, 37002 Salamanca, Spain; (J.R.Y.); (M.Á.G.-M.); (P.R.-M.)
| | - María Ángeles Gómez-Martínez
- Department of Psychology, Pontifical University of Salamanca, Calle de la Compañía 5, 37002 Salamanca, Spain; (J.R.Y.); (M.Á.G.-M.); (P.R.-M.)
| | - Pablo Riesco-Matías
- Department of Psychology, Pontifical University of Salamanca, Calle de la Compañía 5, 37002 Salamanca, Spain; (J.R.Y.); (M.Á.G.-M.); (P.R.-M.)
| | - Cristina Petisco-Rodríguez
- Faculty of Education, Pontifical University of Salamanca, Calle Henry Collet 52-70, 37007 Salamanca, Spain;
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43
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Khalsa DS, Newberg AB. Spiritual Fitness: A New Dimension in Alzheimer's Disease Prevention. J Alzheimers Dis 2021; 80:505-519. [PMID: 33554917 PMCID: PMC8075383 DOI: 10.3233/jad-201433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND Religious and spiritual interventions may have an effect on Alzheimer's disease prevention. Kirtan Kriya meditation has been shown to mitigate the deleterious effects of chronic stress on cognition, reverse memory loss, and create psychological and spiritual wellbeing, which may reduce multiple drivers of Alzheimer's disease risk. OBJECTIVE To detail a new concept in medicine called Spiritual Fitness, a merging of stress reduction, basic wellbeing, and psycho/spiritual wellbeing to prevent Alzheimer's disease. METHODS The literature on the topics mentioned above is described, including an in-depth discussion on why and how each are critical to advancing the future of Alzheimer's disease prevention. The many negative effects of chronic stress, and the benefits of Kirtan Kriya, are reviewed. The four pillars of basic wellbeing, six practical aspects of psychological wellbeing, and the four new non-sectarian features of spiritual fitness are then disclosed. Moreover, instructions on practicing Kirtan Kriya are offered in the Supplementary Material. CONCLUSION Religious and spiritual practices, including Kirtan Kriya, are crucial components in the development of enhanced cognition and well-being, which may help prevent and, in some cases, reverse cognitive decline. The key point of this review is that making a commitment to live a brain longevity lifestyle including spiritual fitness is a critically important way for aging Alzheimer's disease free. We hope that this article will inspire scientists, clinicians, and patients to embrace this new concept of spiritual fitness and make it a part of every multidomain program for the prevention of cognitive disability.
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Affiliation(s)
| | - Andrew B. Newberg
- Department of Integrative Medicine and Nutritional Sciences, Department of Radiology, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, USA
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Stapleton P, Dispenza J, McGill S, Sabot D, Peach M, Raynor D. Large effects of brief meditation intervention on EEG spectra in meditation novices. IBRO Rep 2020; 9:290-301. [PMID: 33204893 PMCID: PMC7649620 DOI: 10.1016/j.ibror.2020.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 10/26/2020] [Indexed: 11/21/2022] Open
Abstract
This study investigated the impact of a brief meditation workshop on a sample of 223 novice meditators. Participants attended a three-day workshop comprising daily guided seated meditation sessions using music without vocals that focused on various emotional states and intentions (open focus). Based on the theory of integrative consciousness, it was hypothesized that altered states of consciousness would be experienced by participants during the meditation intervention as assessed using electroencephalogram (EEG). Brainwave power bands patterns were measured throughout the meditation training workshop, producing a total of 5616 EEG scans. Changes in conscious states were analysed using pre-meditation and post-meditation session measures of delta through to gamma oscillations. Results suggested the meditation intervention had large varying effects on EEG spectra (up to 50 % increase and 24 % decrease), and the speed of change from pre-meditation to post-meditation state of the EEG co-spectra was significant (with 0.76 probability of entering end-meditation state within the first minute). There was a main 5 % decrease in delta power (95 % HDI = [-0.07, -0.03]); a global increase in theta power of 29 % (95 % HDI = [0.27, 0.33]); a global increase of 16 % (95 % HDI = [0.13, 0.19]) in alpha power; a main effect of condition, with global beta power increasing by 17 % (95 % HDI = [0.15, 0.19]); and an 11 % increase (95 % HDI = [0.08, 0.14]) in gamma power from pre-meditation to end-meditation. Findings provided preliminary support for brief meditation in altering states of consciousness in novice meditators. Future clinical examination of meditation was recommended as an intervention for mental health conditions particularly associated with hippocampal impairments.
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Affiliation(s)
- P. Stapleton
- School of Psychology, Bond University, Gold Coast, Queensland, 4229, Australia
| | | | - S. McGill
- School of Psychology, University of Auckland, New Zealand
| | - D. Sabot
- School of Psychology, Bond University, Gold Coast, Queensland, 4229, Australia
| | - M. Peach
- School of Psychology, Evexia Pty Ltd, Brisbane, Australia
| | - D. Raynor
- School of Psychology, Bond University, Gold Coast, Queensland, 4229, Australia
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Keng SL, Looi PS, Tan ELY, Yim OS, Lai PS, Chew SH, Ebstein RP. Effects of Mindfulness-Based Stress Reduction on Psychological Symptoms and Telomere Length: A Randomized Active-Controlled Trial. Behav Ther 2020; 51:984-996. [PMID: 33051039 DOI: 10.1016/j.beth.2020.01.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 12/18/2022]
Abstract
Much research has demonstrated the beneficial effects of mindfulness-based stress reduction (MBSR) on psychological and physical health, but it is not known whether MBSR may impact cellular aging in healthy populations. Further, little research has evaluated MBSR against an active control condition, which precludes strong conclusions regarding the unique effects of mindfulness on psychological functioning. The present study examined the effects of MBSR versus music therapy-based stress reduction (MTSR) on trait mindfulness, self-compassion, and several psychological health outcomes, as well as leukocyte telomere length (LTL). One hundred and fifty eight Singaporean Chinese adults were recruited and randomly assigned to an eight-week MBSR or MTSR course. Participants provided blood samples and completed a battery of self-report measures pre- and post-intervention. Analyses showed that participants in the MBSR condition demonstrated significantly greater improvements in depressive symptoms, trait mindfulness, and self-compassion compared to the control condition. Treatment condition did not predict changes in LTL, anxiety, stress, or happiness, though there was a trend for duration of home mindfulness practice to predict increases in LTL. Overall, the study demonstrated MBSR's unique effects in reducing depressive symptoms. Improvements in trait mindfulness and self-compassion correspond with theorized mechanisms of change underlying mindfulness training. The lack of intervention effect with regards to LTL suggests that a more intensive intervention may be required for mindfulness to exert noticeable impact on aging at the cellular level, or that the effect may only emerge over a longer term.
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Affiliation(s)
| | | | | | | | | | | | - Richard P Ebstein
- China Center for Behavior Economics and Finance, South Western University of Finance and Economics, China.
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Effects of mindfulness and meaning in life on psychological distress in Chinese university students during the COVID-19 epidemic: A chained mediation model. Asian J Psychiatr 2020; 53:102211. [PMID: 32590142 DOI: 10.1016/j.ajp.2020.102211] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 11/20/2022]
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Shields GS, Skwara AC, King BG, Zanesco AP, Dhabhar FS, Saron CD. Deconstructing the effects of concentration meditation practice on interference control: The roles of controlled attention and inflammatory activity. Brain Behav Immun 2020; 89:256-267. [PMID: 32640286 DOI: 10.1016/j.bbi.2020.06.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/23/2020] [Accepted: 06/30/2020] [Indexed: 12/11/2022] Open
Abstract
Prior work has linked meditation practice to improvements in interference control. However, the mechanisms underlying these improvements are relatively unknown. In the context of meditation training, improvements in interference control could result eitherfrom increases in controlled attention to goal-relevant stimuli, or from reductions in automatic capture by goal-irrelevant stimuli. Moreover, few studies have linked training-related changes in attention to physiological processes, such as inflammatory activity, that are thought to influence cognitive function. This study addresses these gaps by examining associations between cognitive performance and cytokines in the context of an intensive meditation retreat. Participants were randomly assigned to complete 3 months of meditation training first, or to serve as waitlist controls. The waitlist-control participants then later completed a separate 3-month training intervention. We assessed participants' interference control with a flanker task and used computational modeling to derive component processes of controlled and automatic attention. We also collected blood samples at the beginning, middle, and end of training to quantify changes in cytokine activity. Participants who completed training evidenced better controlled attention than waitlist controls during the first retreat intervention, and controls showed significant improvements in controlled attention when they completed their own, second retreat. Importantly, inflammatory activity was inversely associated with controlled attention during both interventions. Our results suggest that practice of concentration meditation influences interference control by enhancing controlled attention to goal-relevant task elements, and that inflammatory activity relates to individual differences in controlled attention.
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Affiliation(s)
- Grant S Shields
- Department of Psychological Science, University of Arkansas, Fayetteville, AR, USA.
| | - Alea C Skwara
- Center for Mind and Brain, University of California, Davis, CA, USA; Department of Psychology, University of California, Davis, CA, USA
| | - Brandon G King
- Center for Mind and Brain, University of California, Davis, CA, USA
| | - Anthony P Zanesco
- Department of Psychology, University of Miami, Coral Gables, FL, USA
| | - Firdaus S Dhabhar
- Department of Psychiatry & Behavioral Sciences, Department of Microbiology & Immunology, and The Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Clifford D Saron
- Center for Mind and Brain, University of California, Davis, CA, USA.
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Razgonova MP, Zakharenko AM, Golokhvast KS, Thanasoula M, Sarandi E, Nikolouzakis K, Fragkiadaki P, Tsoukalas D, Spandidos DA, Tsatsakis A. Telomerase and telomeres in aging theory and chronographic aging theory (Review). Mol Med Rep 2020; 22:1679-1694. [PMID: 32705188 PMCID: PMC7411297 DOI: 10.3892/mmr.2020.11274] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/24/2020] [Indexed: 01/03/2023] Open
Abstract
The current review focuses on the connection of telomerase and telomeres with aging. In this review, we describe the changes in telomerase and telomere length (TEL) during development, their role in carcinogenesis processes, and the consequences of reduced telomerase activity. More specifically, the connection of TEL in peripheral blood cells with the development of aging‑associated diseases is discussed. The review provides systematic data on the role of telomerase in mitochondria, the biology of telomeres in stem cells, as well as the consequences of the forced expression of telomerase (telomerization) in human cells. Additionally, it presents the effects of chronic stress exposure on telomerase activity, the effect of TEL on fertility, and the effect of nutraceutical supplements on TEL. Finally, a comparative review of the chronographic theory of aging, presented by Olovnikov is provided based on currently available scientific research on telomere, telomerase activity, and the nature of aging by multicellular organisms.
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Affiliation(s)
- Mayya P. Razgonova
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, 190000 Saint-Petersburg, Russia
- Far Eastern Federal University, 690950 Vladivostok, Russia
| | - Alexander M. Zakharenko
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, 190000 Saint-Petersburg, Russia
- Far Eastern Federal University, 690950 Vladivostok, Russia
| | - Kirill S. Golokhvast
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, 190000 Saint-Petersburg, Russia
- Far Eastern Federal University, 690950 Vladivostok, Russia
- Pacific Geographical Institute, Far Eastern Branch of The Russian Academy of Sciences, 690041 Vladivostok, Russia
| | - Maria Thanasoula
- Metabolomic Μedicine, Health Clinics for Autoimmune and Chronic Diseases, 10674 Athens, Greece
| | - Evangelia Sarandi
- Metabolomic Μedicine, Health Clinics for Autoimmune and Chronic Diseases, 10674 Athens, Greece
| | | | - Persefoni Fragkiadaki
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
- Spin-Off Toxplus S.A., 71601 Heraklion, Greece
| | - Dimitris Tsoukalas
- Metabolomic Μedicine, Health Clinics for Autoimmune and Chronic Diseases, 10674 Athens, Greece
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Aristidis Tsatsakis
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
- Spin-Off Toxplus S.A., 71601 Heraklion, Greece
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49
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Shen H, Chen M, Cui D. Biological mechanism study of meditation and its application in mental disorders. Gen Psychiatr 2020; 33:e100214. [PMID: 32695961 PMCID: PMC7359050 DOI: 10.1136/gpsych-2020-100214] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/08/2020] [Accepted: 06/09/2020] [Indexed: 02/07/2023] Open
Abstract
In recent years, research on meditation as an important alternative therapy has developed rapidly and been widely applied in clinical medicine. Mechanism studies of meditation have also developed progressively, showing that meditation has great impact on brain structure and function, and epigenetic and telomere regulation. In line with this, the application of meditation has gradually been expanded to mental illness, most often applied for major depressive disorders and substance-related and addictive disorders. The focus of this paper is to illustrate the biological mechanisms of meditation and its application in mental disorders.
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Affiliation(s)
- Hui Shen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meijuan Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Donghong Cui
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China
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50
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Woods TJ, Windt JM, Carter O. Silence in Shamatha, Transcendental, and Stillness Meditation: An Evidence Synthesis Based on Expert Texts. Front Psychol 2020; 11:1259. [PMID: 32733305 PMCID: PMC7360996 DOI: 10.3389/fpsyg.2020.01259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/14/2020] [Indexed: 11/13/2022] Open
Abstract
Shamatha, Transcendental, and Stillness Meditation are said to aim for "contentless" experiences, where mental content such as thoughts, perceptions, and mental images is absent. Silence is understood to be a central feature of those experiences. The main source of information about the experiences is texts by experts from within the three traditions. Previous research has tended not to use an explicit scientific method for selecting and reviewing expert texts on meditation. We have identified evidence synthesis as a robust and transparent method that is suitable for this purpose. In this paper we use evidence synthesis based on expert texts to examine silence/quietness as a feature of the contentless experiences in the three practices. Objective criteria were used to select a sample of 135 expert texts. A database containing the expert descriptions of the meditation techniques and experiences was produced by extracting the relevant material from the publications and coding that material to differentiate individual features. The database, which forms part of the Supplementary Material for this paper, identifies each feature of the contentless experiences referred to in the expert texts, including silence/quietness. Our key finding is that the experts indicate silence/quietness has a particular connection with stillness, and the absence of concepts, mental activity/noise, thoughts, and disturbance. Further analysis leads to the following insights. The silence/quietness reflects the absence of thoughts and sounds, and this fits neatly with a conception of silence/quietness as the absence of internal and external noise. In some cases the terms silence and quietness may also reflect the absence of other disturbances such as non-auditory perceptions, mental images, and negative feelings. That would fit with a conception of silence/quietness as complete calm or absence of disturbance. It is not clear from the expert texts how silence/quietness is distinct from other features such as stillness that also reflect the absence of disturbances. As a separate matter, silence/quietness has connections with all the other features of the contentless experiences, but the closeness of the connections varies. Our work uncovers fine distinctions and ambiguities which lead to new research questions that can be explored in future studies.
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Affiliation(s)
- Toby J Woods
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Jennifer M Windt
- Department of Philosophy, Monash University, Melbourne, VIC, Australia
| | - Olivia Carter
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, VIC, Australia
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