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Ye Y, Lei M, Chen L, Song R, Zhao F, Zhang L. Efficacy of technology-based cognitive and exercise interventions for mild cognitive impairment: A systematic review, network meta-analysis, and meta-regression of randomized controlled trials. Ageing Res Rev 2024; 100:102438. [PMID: 39069094 DOI: 10.1016/j.arr.2024.102438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND Technology has been increasingly integrated into controlling the decline of cognitive function. It is unclear whether technology-based cognitive and exercise interventions (T-CEIs) could generate synergistic benefits and what components would optimize this effect. This study aimed to compare the effectiveness of various T-CEIs on cognitive function in individuals with mild cognitive impairment (MCI). METHODS In this study, we searched MEDLINE, Web of Science, Scopus, Embase, and APA PsycInfo from inception to November 4, 2023. We included randomized controlled trials that evaluated the effects of T-CEIs on cognitive function for individuals with MCI. The primary outcome was global cognition. The outcomes were summarized in narrative synthesis and combined using meta-analysis. Pairwise meta-analysis and network meta-analysis were sequentially performed to investigate the effects of each category of interventions and their comparative intervention effectiveness, respectively. Meta-regression was performed to examine the influence of study design and participants' characteristics on the intervention effectiveness. This systematic review protocol was registered in PROSPERO (CRD 42023486359). RESULTS Twenty-eight studies with 1633 participants were included. The results of pairwise meta-analyses indicated that T-CEIs were superior to active/passive controls in improving global cognition, cognitive shifting, processing speed, working memory, delayed recall, and category fluency (p < 0.05). The results of network meta-analyses indicated that the optimal components in improving global cognition (SUCRA 77.0 %, SMD 0.85, 95 % CI -0.17 to 1.87) and cognitive shifting (SUCRA 92.4 %, SMD 1.57, 95 % CI 0.88-2.25) were cognitive stimulation (CS) combined with mind-body exercise (MBE), while cognitive training combined with MBE was the most beneficial in developing processing speed (SUCRA 88.5 %, SMD 0.68, 95 % CI 0.14-1.22). Meta-regression further suggested that the effects of the tested interventions were independent of the various factors related to study design and participants' characteristics. CONCLUSIONS T-CEIs are effective in improving global cognition and core subdomains of cognition in individuals with MCI. This review highlights the superior effects of technology-based CS combined with MBE in improving global cognition.
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Affiliation(s)
- Yifan Ye
- School of Nursing, Sun Yat-sen University, Guangzhou, China.
| | - Ming Lei
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liangying Chen
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rui Song
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fengjiao Zhao
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lifeng Zhang
- School of Nursing, Sun Yat-sen University, Guangzhou, China.
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Tang PK, Cen Z, Zheng Y, Shi J, Hu H, Ung COL. Implementation of the Macao dementia policy: a scoping review for the way forward. Front Public Health 2024; 12:1400172. [PMID: 39076423 PMCID: PMC11284116 DOI: 10.3389/fpubh.2024.1400172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024] Open
Abstract
Background The implementation of dementia policy is a complex process of translating policy goals to actions to address the changing needs of people living with dementia. Leveraging on others' experiences would help policy decision-makers and actors better prepare for the challenges. Purpose This study explored the development, the implementation and the impact of the dementia policy in Macao, a "role model" recognized by the Alzheimer's Disease International. Methods A scoping review of policies, strategies, and news articles, as well as scholarly work from 6 scientific databases dated till March 2023 was conducted under the guidance of the Health Policy Triangle Framework. Results According to 284 documents, the dementia policy in Macao, driven by government leadership and supported with public-private partnership, aimed to integrate health and social services to achieve the goals of "Early prevention, Early detection, Early diagnosis, Early treatment and Early support." Promoting the preparedness according to the dementia burden trajectory, empowering the public and the service providers with training and education, and encouraging services-related research were among the key actions. With major changes in dementia care configuration, a dementia service network, a dementia-friendly community and a one-stop service model for disease screening, diagnosis, treatment and support have been developed. Discussion Reconfiguring existing resources in the health and social services to form an integrated service network at the community level could be considered a priority of action. Continuous engagement, collaboration and empowerment at different levels across these sectors is crucial for the sustainability of a dementia policy.
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Affiliation(s)
- Pou Kuan Tang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macao, China
| | - Zhifeng Cen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macao, China
| | - Yu Zheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macao, China
| | - Junnan Shi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macao, China
| | - Hao Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macao, China
- Faculty of Health Sciences, Department of Public Health and Medicinal Administration, University of Macau, Macao, China
| | - Carolina Oi Lam Ung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macao, China
- Faculty of Health Sciences, Department of Public Health and Medicinal Administration, University of Macau, Macao, China
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Rahman MS, Islam R, Bhuiyan MIH. Ion transporter cascade, reactive astrogliosis and cerebrovascular diseases. Front Pharmacol 2024; 15:1374408. [PMID: 38659577 PMCID: PMC11041382 DOI: 10.3389/fphar.2024.1374408] [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: 01/22/2024] [Accepted: 03/21/2024] [Indexed: 04/26/2024] Open
Abstract
Cerebrovascular diseases and their sequalae, such as ischemic stroke, chronic cerebral hypoperfusion, and vascular dementia are significant contributors to adult disability and cognitive impairment in the modern world. Astrocytes are an integral part of the neurovascular unit in the CNS and play a pivotal role in CNS homeostasis, including ionic and pH balance, neurotransmission, cerebral blood flow, and metabolism. Astrocytes respond to cerebral insults, inflammation, and diseases through unique molecular, morphological, and functional changes, collectively known as reactive astrogliosis. The function of reactive astrocytes has been a subject of debate. Initially, astrocytes were thought to primarily play a supportive role in maintaining the structure and function of the nervous system. However, recent studies suggest that reactive astrocytes may have both beneficial and detrimental effects. For example, in chronic cerebral hypoperfusion, reactive astrocytes can cause oligodendrocyte death and demyelination. In this review, we will summarize the (1) roles of ion transporter cascade in reactive astrogliosis, (2) role of reactive astrocytes in vascular dementia and related dementias, and (3) potential therapeutic approaches for dementing disorders targeting reactive astrocytes. Understanding the relationship between ion transporter cascade, reactive astrogliosis, and cerebrovascular diseases may reveal mechanisms and targets for the development of therapies for brain diseases associated with reactive astrogliosis.
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Affiliation(s)
- Md Shamim Rahman
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX, United States
| | | | - Mohammad Iqbal H. Bhuiyan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX, United States
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Saks DG, Smith EE, Sachdev PS. National and international collaborations to advance research into vascular contributions to cognitive decline. CEREBRAL CIRCULATION - COGNITION AND BEHAVIOR 2023; 6:100195. [PMID: 38226362 PMCID: PMC10788430 DOI: 10.1016/j.cccb.2023.100195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 01/17/2024]
Abstract
Cerebrovascular disease is the second most common cause of cognitive disorders, usually referred to as vascular contributions to cognitive impairment and dementia (VCID) and makes some contribution to about 70 % of all dementias. Despite its importance, research into VCID has lagged as compared to cognitive impairment due to Alzheimer's disease. There is an increasing appreciation that closing this gap requires large national and international collaborations. This paper highlights 24 notable large-scale national and international efforts to advance research into VCID (MarkVCID, DiverseVCID, DISCOVERY, COMPASS-ND, HBC, RHU SHIVA, UK DRI Vascular Theme, STROKOG, Meta VCI Map, ISGC, ENIGMA-Stroke Recovery, CHARGE, SVDs@target, BRIDGET, CADASIL Consortium, CADREA, AusCADASIL, DPUK, DPAU, STRIVE, HARNESS, FINESSE, VICCCS, VCD-CRE Delphi). These collaborations aim to investigate the effects on cognition from cerebrovascular disease or impaired cerebral blood flow, the mechanisms of action, means of prevention and avenues for treatment. Consensus groups have been developed to harmonise global approaches to VCID, standardise terminology and inform management and treatment, and data sharing is becoming the norm. VCID research is increasingly a global collaborative enterprise which bodes well for rapid advances in this field.
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Affiliation(s)
- Danit G Saks
- Centre for Healthy Brain Ageing, Discipline of Psychiatry and Mental Health, School of Clinical Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Eric E Smith
- Department of Clinical Neurosciences and Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Perminder S Sachdev
- Centre for Healthy Brain Ageing, Discipline of Psychiatry and Mental Health, School of Clinical Medicine, University of New South Wales, Sydney, New South Wales, Australia
- Neuropsychiatric Institute, Prince of Wales Hospital, Sydney, New South Wales, Australia
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Abdullah JM. Needs of older people living with dementia in low and middle-income Asian countries: A scoping review. DEMENTIA 2023; 22:1977-1993. [PMID: 37708304 PMCID: PMC10644686 DOI: 10.1177/14713012231198952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
BACKGROUND Population ageing in low and middle-income Asian countries is associated with increased prevalence of dementia. The proportion of people with dementia in countries such as Bangladesh and Thailand are increasing. People with dementia can have complex care and health service needs. If these needs are not adequately met, this can result in a decreased quality of life and burden on the health system. There is considerable research into the needs of people with dementia in high-income countries. However, research on the needs of people living with dementia in low and middle-income countries remains underexplored. The aim of this study was to review and summarise the literature on the health and social care needs of older people with dementia in low and middle-income Asian countries. METHODS Five online databases (PubMed, Scopus, Web of Science, CINAHL and PsycINFO) and google scholar were searched. The databases were searched using a selection of key words. PRISMA-ScR approach was followed in reporting the process. KEY FINDINGS We extracted eight studies related to the health and social care needs of people with dementia that met our inclusion criteria. From the available literature, needs were categorised across five categories: (i) social, cognitive, and mental health needs; (ii) physical needs; (iii) care and service needs; (iv) knowledge-related needs; and (v) spiritual care needs. CONCLUSION While eight papers were located which discussed the needs of people with dementia across a range of domains, this review demonstrates a deficit in the current evidence-base about the health and social care needs of people living with dementia in low and middle-income Asian countries. Further research is needed to identify health and care needs of people with dementia and how these needs are being met.
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Affiliation(s)
- JM Abdullah
- College of Health and Medicine, University of Tasmania, Lilyfield, NSW, Australia
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Sabatini S, Cosentino S, Chapman S, Ballard C, Brooker H, Corbett A, Stephan BCM. Cognitive trajectories: exploring the predictive role of subjective cognitive decline and awareness of age-related changes for cognitive functioning. Front Psychiatry 2023; 14:1270798. [PMID: 37928917 PMCID: PMC10620507 DOI: 10.3389/fpsyt.2023.1270798] [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: 08/01/2023] [Accepted: 10/02/2023] [Indexed: 11/07/2023] Open
Abstract
Background We investigated whether aspects of subjective cognitive aging, including awareness of age-related gains and losses in cognition (AARC-gains, AARC-losses) and subjective cognitive decline (SCD), predict change in objective cognitive function as measured by verbal reasoning (VR) and working memory (WM). Methods We used longitudinal data for 3,299 cognitively healthy UK residents aged 65+. We used data on AARC and SCD assessed in 2019, and cognitive tasks assessed in 2019, 2020, and 2021. We used latent growth curve modeling, latent class growth analysis, and growth mixture modeling. Results For VR, multiple growth trajectories were not evident. Mean VR at baseline was 37.45; this remained stable over time. Higher AARC-gains in cognition (mean intercept = -0.23; 95%CI: -0.31; -0.16), higher AARC-losses in cognition (mean intercept = -0.37; 95%CI: -0.46; -0.28), and lower SCD (mean intercept = 2.92; 95%CI: 2.58; 3.58) were associated with poorer VR at baseline. A three-class growth mixture model-class varying best represented trajectories of WM. In Class 1 (N = 182) mean WM at baseline was 31.20; this decreased by 2.48 points each year. In Class 2 (N = 119) mean WM at baseline was 23.12; this increased by 3.28 points each year. In Class 3 (N = 2,998) mean WM at baseline was 30.11; and it remained stable. Higher AARC-gains (Odds Ratio = 1.08; 95%CI: 1.03; 1.14) and AARC-losses (Odds Ratio = 1.10; 95%CI: 1.04; 1.16) in cognition predicted greater likelihood of being in Class 2 than Class 3. Conclusion Although both higher AARC-gains and AARC-losses indicate poorer concurrent cognition, higher AARC-gains may be a resource that facilitates future cognitive improvement.
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Affiliation(s)
- Serena Sabatini
- School of Medicine, Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom
| | - Stephanie Cosentino
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, New York, NY, United States
- Department of Neurology, Columbia University, New York, NY, United States
| | - Silvia Chapman
- Department of Neurology, Columbia University, New York, NY, United States
| | - Clive Ballard
- Faculty of Health and Life Science, University of Exeter, Exeter, United Kingdom
| | - Helen Brooker
- Faculty of Health and Life Science, University of Exeter, Exeter, United Kingdom
- Ecog Pro Ltd., Bristol, United Kingdom
| | - Anne Corbett
- Faculty of Health and Life Science, University of Exeter, Exeter, United Kingdom
| | - Blossom C. M. Stephan
- School of Medicine, Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom
- Faculty of Health Sciences, Curtin enAble Institute, Curtin University, Bentley, WA, Australia
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