James A. Wiseman , Kreesan Reddy , Birger Victor Dieriks
{"title":"From onset to advancement: the temporal spectrum of α-synuclein in synucleinopathies","authors":"James A. Wiseman , Kreesan Reddy , Birger Victor Dieriks","doi":"10.1016/j.arr.2024.102640","DOIUrl":"10.1016/j.arr.2024.102640","url":null,"abstract":"<div><div>This review provides an in-depth analysis of the complex role of alpha-synuclein (α-Syn) in the development of α-synucleinopathies, with a particular focus on its structural diversity and the resulting clinical variability. The ability of α-Syn to form different strains or polymorphs and undergo various post-translational modifications significantly contributes to the wide range of symptoms observed in disorders such as Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA), as well as in lesser-known non-classical α-synucleinopathies. The interaction between genetic predispositions and environmental factors further complicates α-synucleinopathic disease pathogenesis, influencing the disease-specific onset and progression. Despite their common pathological hallmark of α-Syn accumulation, the clinical presentation and progression of α-synucleinopathies differ significantly, posing challenges for diagnosis and treatment. The intricacies of α-Syn pathology highlight the critical need for a deeper understanding of its biological functions and interactions within the neuronal environment to develop targeted therapeutic strategies. The precise point at which α-Syn aggregation transitions from being a byproduct of initial disease triggers to an active and independent driver of disease progression – through the propagation and acceleration of pathogenic processes – remains unclear. By examining the role of α-Syn across various contexts, we illuminate its dual role as both a marker and a mediator of disease, offering insights that could lead to innovative approaches for managing α-synucleinopathies.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102640"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Glial polarization in neurological diseases: Molecular mechanisms and therapeutic opportunities","authors":"Yuqing Liu , Lei Wu , Weijun Peng , Xiaoyuan Mao","doi":"10.1016/j.arr.2024.102638","DOIUrl":"10.1016/j.arr.2024.102638","url":null,"abstract":"<div><div>Glial cell polarization plays a pivotal role in various neurological disorders. In response to distinct stimuli, glial cells undergo polarization to either mitigate neurotoxicity or facilitate neural repair following injury, underscoring the importance of glial phenotypic polarization in modulating central nervous system function. This review presents an overview of glial cell polarization, focusing on astrocytes and microglia. It explores the involvement of glial polarization in neurological diseases such as Alzheimer's disease, Parkinson's disease, stroke, epilepsy, traumatic brain injury, amyotrophic lateral sclerosis, multiple sclerosis and meningoencephalitis. Specifically, it emphasizes the role of glial cell polarization in disease pathogenesis through mechanisms including neuroinflammation, neurodegeneration, calcium signaling dysregulation, synaptic dysfunction and immune response. Additionally, it summarizes various therapeutic strategies including pharmacological treatments, dietary supplements and cell-based therapies, aimed at modulating glial cell polarization to ameliorate brain dysfunction. Future research focused on the spatio-temporal manipulation of glial polarization holds promise for advancing precision diagnosis and treatment of neurological diseases.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102638"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johannes Burtscher , Vanna Denti , Johanna M. Gostner , Alexander KH Weiss , Barbara Strasser , Katharina Hüfner , Martin Burtscher , Giuseppe Paglia , Martin Kopp , Tobias Dünnwald
{"title":"The interplay of NAD and hypoxic stress and its relevance for ageing","authors":"Johannes Burtscher , Vanna Denti , Johanna M. Gostner , Alexander KH Weiss , Barbara Strasser , Katharina Hüfner , Martin Burtscher , Giuseppe Paglia , Martin Kopp , Tobias Dünnwald","doi":"10.1016/j.arr.2024.102646","DOIUrl":"10.1016/j.arr.2024.102646","url":null,"abstract":"<div><div>Nicotinamide adenine dinucleotide (NAD) is an essential regulator of cellular metabolism and redox processes. NAD levels and the dynamics of NAD metabolism change with increasing age but can be modulated via the diet or medication. Because NAD metabolism is complex and its regulation still insufficiently understood, achieving specific outcomes without perturbing delicate balances through targeted pharmacological interventions remains challenging. NAD metabolism is also highly sensitive to environmental conditions and can be influenced behaviorally, e.g., by exercise. Changes in oxygen availability directly and indirectly affect NAD levels and may result from exposure to ambient hypoxia, increased oxygen demand during exercise, ageing or disease. Cellular responses to hypoxic stress involve rapid alterations in NAD metabolism and depend on many factors, including age, glucose status, the dose of the hypoxic stress and occurrence of reoxygenation phases, and exhibit complex time-courses. Here we summarize the known determinants of NAD-regulation by hypoxia and evaluate the role of NAD in hypoxic stress. We define the specific NAD responses to hypoxia and identify a great potential of the modulation of NAD metabolism regarding hypoxic injuries.</div><div>In conclusion, NAD metabolism and cellular hypoxia responses are strongly intertwined and together mediate protective processes against hypoxic insults. Their interactions likely contribute to age-related changes and vulnerabilities. Targeting NAD homeostasis presents a promising avenue to prevent/treat hypoxic insults and – conversely – controlled hypoxia is a potential tool to regulate NAD homeostasis.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102646"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Danqing Yu , Qingping Zhong , Yanlin Wang , Chang Yin , Minghua Bai , Ji Zhu , Jinggang Chen , Huaming Li , Weifeng Hong
{"title":"Lactylation: The metabolic accomplice shaping cancer's response to radiotherapy and immunotherapy","authors":"Danqing Yu , Qingping Zhong , Yanlin Wang , Chang Yin , Minghua Bai , Ji Zhu , Jinggang Chen , Huaming Li , Weifeng Hong","doi":"10.1016/j.arr.2025.102670","DOIUrl":"10.1016/j.arr.2025.102670","url":null,"abstract":"<div><div>Protein lactylation, an emerging post-translational modification, is providing new insights into tumor biology and challenging our current understanding of cancer mechanisms. Our review illuminates the intricate roles of lactylation in carcinogenesis, tumor progression, and therapeutic responses, positioning it as a critical linchpin connecting metabolic reprogramming, epigenetic modulation, and treatment outcomes. We provide an in-depth analysis of lactylation's molecular mechanisms and its far-reaching impact on cell cycle regulation, immune evasion strategies, and therapeutic resistance within the complex tumor microenvironment. Notably, this review dissects the paradoxical nature of lactylation in cancer immunotherapy and radiotherapy. While heightened lactylation can foster immune suppression and radioresistance, strategically targeting lactylation cascades opens innovative avenues for amplifying the efficacy of current treatment paradigms. We critically evaluate lactylation's potential as a robust diagnostic and prognostic biomarker and explore frontier therapeutic approaches targeting lactylation. The synergistic integration of multi-omics data and artificial intelligence in lactylation research is catalyzing significant strides towards personalized cancer management. This review not only consolidates current knowledge but also charts a course for future investigations. Key research imperatives include deciphering tumor-specific lactylation signatures, optimizing synergistic strategies combining lactylation modulation with immune checkpoint inhibitors and radiotherapy, and comprehensively assessing the long-term physiological implications of lactylation intervention. As our understanding of lactylation's pivotal role in tumor biology continues to evolve, this burgeoning field promises to usher in transformative advancements in cancer diagnosis, treatment modalitie.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102670"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143049091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qiqi Liu , Hanyu Wang , Ze Chen , Jiahui Xiong , Yong Huang , Shipeng Zhang , Qinxiu Zhang
{"title":"Global, regional, and national epidemiology of nasopharyngeal carcinoma in middle-aged and elderly patients from 1990 to 2021","authors":"Qiqi Liu , Hanyu Wang , Ze Chen , Jiahui Xiong , Yong Huang , Shipeng Zhang , Qinxiu Zhang","doi":"10.1016/j.arr.2024.102613","DOIUrl":"10.1016/j.arr.2024.102613","url":null,"abstract":"<div><h3>Background</h3><div>In recent years, changes in the incidence and mortality rates of nasopharyngeal carcinoma have occurred globally, across various regions, and among different countries. As a high incidence group, it is necessary to study the prevalence trend of middle-aged and elderly people.</div></div><div><h3>Methods</h3><div>Detailed information on NPC in middle-aged and elderly patients from 1990 to 2021 was collected from the Global Burden of Disease Database 2021 (GBD2021). Adopted incidence, mortality, disability-adjusted life-years (DALYs), sociodemographic index (SDI) and corresponding Estimated Annual Percentage Changes (EAPCs) to assess the burden of NPC in middle-aged and elderly patients. Additionally, a global risk attribution analysis was conducted, and a Bayesian age-period-cohort (BAPC) model was applied to project the global burden of NPC in middle-aged and elderly patients from 2021 to 2035.</div></div><div><h3>Findings</h3><div>Globally, the incidence cases of NPC in middle-aged and elderly people increased by 58.2 %, the numbers of death increased by 33.8 %, and the DALY increased by 42.1 %. However, the EAPCs values and upper limits in incidence, mortality and DALY rates were all less than 0, indicating a decreasing trend of incidence, mortality and disease burden. Both incidence and mortality rates were decreasing in high-incidence territories. Most regions were negatively correlated with the sociodemographic index. Males had obviously higher incidence and mortality of NPC in middle-aged and elderly patients than females. The highest incidences of nasopharyngeal carcinoma in middle-aged and elderly males were in the 65–69 age group, and the incidences in females did not change much among different age groups. We found that Alcohol use, Occupational risk and Tobacco were the major risk factors for NPC-related mortality in middle-aged and elderly patients.</div></div><div><h3>Conclusion</h3><div>Controllable etiology should be effectively controlled in the future.</div></div><div><h3>Data availability</h3><div>The data sets generated and/or analyzed during the current study are available in the GBD repository (<span><span>https://vizhub.healthdata.org/gbd-results/</span><svg><path></path></svg></span>). Data will be made available on request.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102613"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nelson Arroyo-Pacheco, Shayury Sarmiento-Blanco, Guillermo Vergara-Cadavid, Maryarena Castro-Leones, Neyder Contreras-Puentes
{"title":"Monoclonal therapy with lecanemab in the treatment of mild Alzheimer's disease: A systematic review and meta-analysis","authors":"Nelson Arroyo-Pacheco, Shayury Sarmiento-Blanco, Guillermo Vergara-Cadavid, Maryarena Castro-Leones, Neyder Contreras-Puentes","doi":"10.1016/j.arr.2024.102620","DOIUrl":"10.1016/j.arr.2024.102620","url":null,"abstract":"<div><div>Alzheimer's disease, a progressive neurodegenerative pathology, is characterized by the accumulation of Amyloid-β plaques in the brain. Lecanemab (BAN2401), a humanized IgG1 monoclonal antibody, binds with high affinity to Amyloid-β protofibrils. It is the first monoclonal antibody for Alzheimer's disease to receive full FDA approval. This systematic review, conducted meticulously, examines the current use and safety of Lecanemab in treating Alzheimer's disease. We screened literature from databases such as PubMed Central, PubMed (MedLine), ScienceDirect, Scopus, Web of Science, and Wolters Kluwer for randomized controlled trials testing Lecanemab for cognitive decline in patients with mild cognitive impairment due to Alzheimer's disease. Outcomes measured included CDR-SB, ADCOMS, ADAS-Cog, and Amyloid burden on PET in centiloids. Likewise, reports were analyzed for adverse events associated with ARIA-A and ARIA-H. Five papers were included in the systematic review and three in the meta-analysis. The meta-analysis showed that Lecanemab slowed the progression of cognitive impairment as measured by CDR-SB, ADCOMS, and ADASCog, and significantly reduced Amyloid burden on PET in centiloids. However, Lecanemab was associated with an increased risk of ARIA-E and ARIA-H. Lecanemab has demonstrated efficacy in slowing cognitive impairment progression in Alzheimer's disease as measured by ADCOMS, ADAS-Cog, and CDR-SB. However, it is associated with an increased risk of ARIA-E and ARIA-H, particularly in ApoE4 carriers.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102620"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinjin Pei , Ranil Vikraman Kumarasamy , Selvaraj Jayaraman , Gopalakrishnan Velliyur Kanniappan , Qianfa Long , Chella Perumal Palanisamy
{"title":"Quercetin-functionalized nanomaterials: Innovative therapeutic avenues for Alzheimer's disease management","authors":"Jinjin Pei , Ranil Vikraman Kumarasamy , Selvaraj Jayaraman , Gopalakrishnan Velliyur Kanniappan , Qianfa Long , Chella Perumal Palanisamy","doi":"10.1016/j.arr.2025.102665","DOIUrl":"10.1016/j.arr.2025.102665","url":null,"abstract":"<div><div>Alzheimer's Disease (AD) is a major global health challenge, largely due to its complex pathology and the limited effectiveness of existing treatments. Quercetin, a bioactive compound belonging to the flavonoid class, its promising antioxidant, anti-inflammatory, and neuroprotective effects in addressing AD. However, its therapeutic potential is hindered by challenges such as low bioavailability, instability, and restricted permeability across the blood-brain barrier (BBB). Advances in nanotechnology have paved the way for quercetin-functionalized nanomaterials, offering solutions to these challenges. These nanostructures enhance quercetin's solubility, stability, and targeted brain delivery, thereby augmenting its therapeutic potential. In this review, nanocarriers (like liposomes, polymeric nanoparticles, and metal-based nanosystems) are explored for their potential application in optimizing quercetin delivery in AD management. It discusses the mechanisms by which these nanostructures enhance BBB penetration and exert neuroprotective effects. Furthermore, the review examines the outcomes of preclinical and <em>in vitro</em> studies, while addressing the challenges of scaling these approaches for clinical application. By merging the fields of nanotechnology and neurotherapeutics, the importance of quercetin-functionalized nanomaterials in advancing AD management strategies is underscored in this review.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102665"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143017990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alexandra Sviercovich, Xiaoyue Mei, Grace Xie, Michael J. Conboy, Irina M. Conboy
{"title":"The dominance of old blood, and age-related increase in protein production and noise","authors":"Alexandra Sviercovich, Xiaoyue Mei, Grace Xie, Michael J. Conboy, Irina M. Conboy","doi":"10.1016/j.arr.2024.102641","DOIUrl":"10.1016/j.arr.2024.102641","url":null,"abstract":"<div><div>This concise review provides new perspectives on systemic reduction of tissue aging by comparing different strategies, such as heterochronic parabiosis, injections of young blood plasma, neutral blood exchange (NBE) and therapeutic plasma exchange (TPE). Unlike previous literature that primarily discusses the need for young blood factors, we emphasize the potential of diluting age-elevated proteins as the way to re-calibrate systemic proteome to its younger state without donor blood. Furthermore, we introduce modulation of proteome noise, as an important part of understanding tissue aging and as a critical mechanism for tissue rejuvenation. We discuss studies on the dominance of aged systemic milieu in promoting progeric phenotypes in young cells, in vitro, and in multiple tissues of young animals, in vivo. We support our arguments with evidence showing a significant age-related increase in protein synthesis, in noise of newly synthesized proteomes, and in the rapid induction of these aging phenotypes in young muscle by exposure to aged tissue. We summarize the significance of these findings for future research on aging and longevity.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102641"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peggy R. Biga , Jingyue E. Duan , Tristan E. Young , Jamie R. Marks , Anne Bronikowski , Louis P. Decena , Eric C. Randolph , Ananya G. Pavuluri , Guangsheng Li , Yifei Fang , Gerald S. Wilkinson , Gunjan Singh , Nathan T. Nigrin , Erica N. Larschan , Andrew J. Lonski , Nicole C. Riddle , IISAGE Consortium
{"title":"Hallmarks of aging: A user’s guide for comparative biologists","authors":"Peggy R. Biga , Jingyue E. Duan , Tristan E. Young , Jamie R. Marks , Anne Bronikowski , Louis P. Decena , Eric C. Randolph , Ananya G. Pavuluri , Guangsheng Li , Yifei Fang , Gerald S. Wilkinson , Gunjan Singh , Nathan T. Nigrin , Erica N. Larschan , Andrew J. Lonski , Nicole C. Riddle , IISAGE Consortium","doi":"10.1016/j.arr.2024.102616","DOIUrl":"10.1016/j.arr.2024.102616","url":null,"abstract":"<div><div>Since the first description of a set of characteristics of aging as so-called hallmarks or pillars in 2013/2014, these characteristics have served as guideposts for the research in aging biology. They have been examined in a range of contexts, across tissues, in response to disease conditions or environmental factors, and served as a benchmark for various anti-aging interventions. While the hallmarks of aging were intended to capture generalizable characteristics of aging, they are derived mostly from studies of rodents and humans. Comparative studies of aging including species from across the animal tree of life have great promise to reveal new insights into the mechanistic foundations of aging, as there is a great diversity in lifespan and age-associated physiological changes. However, it is unclear how well the defined hallmarks of aging apply across diverse species. Here, we review each of the twelve hallmarks of aging defined by Lopez-Otin in 2023 with respect to the availability of data from diverse species. We evaluate the current methods used to assess these hallmarks for their potential to be adapted for comparative studies. Not unexpectedly, we find that the data supporting the described hallmarks of aging are restricted mostly to humans and a few model systems and that no data are available for many animal clades. Similarly, not all hallmarks can be easily assessed in diverse species. However, for at least half of the hallmarks, there are methods available today that can be employed to fill this gap in knowledge, suggesting that these studies can be prioritized while methods are developed for comparative study of the remaining hallmarks.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102616"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anna Luiza Guimarães , Feng V. Lin , Rogerio Panizzutti , Adam Turnbull
{"title":"Effective engagement in computerized cognitive training for older adults","authors":"Anna Luiza Guimarães , Feng V. Lin , Rogerio Panizzutti , Adam Turnbull","doi":"10.1016/j.arr.2024.102650","DOIUrl":"10.1016/j.arr.2024.102650","url":null,"abstract":"<div><div>Computerized cognitive training (CCT) is a frontline therapy to prevent or slow age-related cognitive decline. A prerequisite for CCT research to provide clinically relevant improvements in cognition is to understand effective engagement, i.e., the pattern of energy investment that ensures CCT effectiveness. Even though previous studies have assessed whether particular variables (e.g., gamification) predict engagement and/or CCT effectiveness, the field lacks a systematic approach to understanding effective engagement. Here, by comprehensively reviewing and evaluating engagement and adjacent literature, we propose a standardized measurement and operational framework to promote effective engagement with CCT targeting cognitive decline in older adults. We suggest that promoting effective engagement with CCT has two key steps: 1) comprehensively measuring engagement with CCT and 2) identifying which aspects of engagement are essential to achieve the pre-specified outcome of clinically relevant improvements in cognition. The proposed measurement and operational framework of effective engagement will allow future research to maximize older adults’ engagement with CCT to slow/prevent age-related cognitive decline.</div></div>","PeriodicalId":55545,"journal":{"name":"Ageing Research Reviews","volume":"104 ","pages":"Article 102650"},"PeriodicalIF":12.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142928255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}