{"title":"Response to two letters on omega-3 supplementation and cognitive decline.","authors":"Zheng-Bin Liao, Ye-Ran Wang","doi":"10.1016/j.tjpad.2026.100662","DOIUrl":"10.1016/j.tjpad.2026.100662","url":null,"abstract":"","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100662"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13528379/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Moeko Noguchi-Shinohara, Daiki Muramatsu, Ayano Shima, Yasuhiro Sakashita, Yasutake Tada, Hiroki Yamaguchi, Junji Komatsu, Tokuhei Ikeda, Kenjiro Ono
{"title":"Real-world long-term continuation of lecanemab therapy and the clinical utility of phosphorylated tau 181.","authors":"Moeko Noguchi-Shinohara, Daiki Muramatsu, Ayano Shima, Yasuhiro Sakashita, Yasutake Tada, Hiroki Yamaguchi, Junji Komatsu, Tokuhei Ikeda, Kenjiro Ono","doi":"10.1016/j.tjpad.2026.100664","DOIUrl":"10.1016/j.tjpad.2026.100664","url":null,"abstract":"<p><p>This real-world study evaluated the long-term feasibility of lecanemab treatment in 117 patients with early Alzheimer's disease at Kanazawa University Hospital. To assess treatment persistence over a full 18-month course, we focused on the 64 patients who initiated treatment between January and December 2024. Of these 64 patients, 78.1% completed the full 18-month course, and all 48 eligible patients elected to continue beyond 18 months. The overall discontinuation rate was 21.9%, with amyloid-related imaging abnormalities (ARIA) (27.7%), decreased motivation (22.2%), and cognitive decline (11.1%) as the primary reasons. Among all 117 patients, ARIA occurred in 12.9% and was significantly associated with apolipoprotein Eε4 carrier status, elevated baseline cerebrospinal fluid (CSF)-phosphorylated tau (ptau) 181 (ptau181; ≥78.6 pg/ml), ≥2 microbleeds, and Fazekas score≥2 deep white matter hyperintensity. Elevated CSF-ptau181 also independently predicted cognitive decline during treatment and ARIA-related discontinuation. These findings suggest that integrating CSF-ptau181 measurement and baseline MRI into clinical decision-making may support individualized risk stratification and the safe, sustained use of lecanemab in real-world practice.</p>","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100664"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13545707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148851510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The missing improvers: Tau pathology, neuroplasticity, and the case for tau-informed patient selection before amyloid immunotherapy.","authors":"Eric Dinnerstein","doi":"10.1016/j.tjpad.2026.100653","DOIUrl":"10.1016/j.tjpad.2026.100653","url":null,"abstract":"<p><p>Amyloid immunotherapy with lecanemab and donanemab has been approved on the basis of statistically significant slowing of cognitive and functional decline in early Alzheimer's disease (1,2). Yet clinicians treating individual patients face the everyday challenge of estimating whether a given patient is declining at the rate that would be expected for them, and whether their trajectory reflects a response to treatment. I argue that this difficulty arises in large part because the field cannot yet routinely stratify patients by tau pathology before treatment, even though tau burden is among the strongest available predictors of both the rate of progression and the magnitude of response to amyloid-targeting therapy. Post-hoc and open-label analyses of the Clarity AD and TRAILBLAZER-ALZ 2 programmes suggest that patients with absent, low, or medium tau burden may constitute a biologically distinct group in whom amyloid clearance is most likely to permit clinical stabilization or measurable functional gain. These observations remain hypotheses, generated largely from subgroup, open-label, and biomarker data rather than from prospective trials designed to test them I propose that tau status should be given strong consideration in patient selection, that tau-guided selection should be evaluated prospectively, and that the access, reimbursement, and standardization barriers to tau positron emission tomography (PET) - together with the promise of scalable plasma tau biomarkers - be addressed deliberately as the field moves toward tau-informed treatment. One tau PET tracer is currently approved by the US Food and Drug Administration, and a regulatory decision on a second is anticipated in 2026.</p>","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100653"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13495380/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148761267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Frailty in the anti-amyloid era: an opportunity to individualize care.","authors":"Nicholas M Vogt, Dae Hyun Kim","doi":"10.1016/j.tjpad.2026.100682","DOIUrl":"10.1016/j.tjpad.2026.100682","url":null,"abstract":"","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100682"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13677219/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149148232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Opportunities to treat specific populations with repurposed drugs.","authors":"Serge Gauthier","doi":"10.1016/j.tjpad.2026.100671","DOIUrl":"10.1016/j.tjpad.2026.100671","url":null,"abstract":"","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100671"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13586816/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148956183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Moeko Noguchi-Shinohara, Daiki Muramatsu, Ayano Shima, Yasuhiro Sakashita, Yasutake Tada, Hiroki Yamaguchi, Junji Komatsu, Tokuhei Ikeda, Kenjiro Ono
{"title":"Corrigendum to \"Real-world long-term continuation of lecanemab therapy and the clinical utility of phosphorylated tau 181\" [The Journal of Prevention of Alzheimer's Disease (2026) 100664].","authors":"Moeko Noguchi-Shinohara, Daiki Muramatsu, Ayano Shima, Yasuhiro Sakashita, Yasutake Tada, Hiroki Yamaguchi, Junji Komatsu, Tokuhei Ikeda, Kenjiro Ono","doi":"10.1016/j.tjpad.2026.100668","DOIUrl":"10.1016/j.tjpad.2026.100668","url":null,"abstract":"","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100668"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13594727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148977969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ron Handels, Bernhard Michalowsky, Aline Mendes, Sverre Bergh, Bruno Mario Cesana, Alfonso Ciccone, Emmanuel Cognat, Andrea Fabbo, Sara Fascendini, Giovanni B Frisoni, Lutz Froelich, Patrizia Mecocci, Paola Merlo, Oliver Peters, Magdalini Tsolaki, Carlo Alberto Defanti
{"title":"Cost-effectiveness of the special care unit for persons with dementia.","authors":"Ron Handels, Bernhard Michalowsky, Aline Mendes, Sverre Bergh, Bruno Mario Cesana, Alfonso Ciccone, Emmanuel Cognat, Andrea Fabbo, Sara Fascendini, Giovanni B Frisoni, Lutz Froelich, Patrizia Mecocci, Paola Merlo, Oliver Peters, Magdalini Tsolaki, Carlo Alberto Defanti","doi":"10.1016/j.tjpad.2026.100647","DOIUrl":"10.1016/j.tjpad.2026.100647","url":null,"abstract":"<p><strong>Introduction: </strong>We aimed to estimate the cost-effectiveness of the patient-centered special care unit for behavioral and psychological symptoms of dementia (SCU-B) in the Respectful Caring for the Agitated Elderly (RECage) study.</p><p><strong>Methods: </strong>A health-economic evaluation was performed alongside a controlled European multicenter three-year longitudinal cohort study enrolling 508 participants in a non-SCU-B cohort and SCU-B cohort. Health service resource use, costs, quality-adjusted life years (QALYs), and incremental cost per QALY gained were assessed.</p><p><strong>Results: </strong>Total QALYs were lower (-0.13; bootstrap-interval -0.23 to -0.02) and total costs were higher (€24,960; bootstrap-interval 14,870 to 35,090) in the SCU-B cohort. Base case and sensitivity analyses indicated the SCU-B was likely not cost-effective.</p><p><strong>Discussion: </strong>Widespread implementation as well as disinvestment of SCU-B cannot be recommended, given the uncertainty of the study results. We recommend a randomized study stratified by (local/county) region for conclusive evidence.</p>","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100647"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13476509/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148689832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Keun You Kim, Hyunsun Ham, Eun Jin Yoon, Eosu Kim, Yu Kyeong Kim, Jun-Young Lee
{"title":"Relative importance of blood-based biomarkers for Alzheimer's disease-specific neurodegeneration and cognitive decline.","authors":"Keun You Kim, Hyunsun Ham, Eun Jin Yoon, Eosu Kim, Yu Kyeong Kim, Jun-Young Lee","doi":"10.1016/j.tjpad.2026.100644","DOIUrl":"10.1016/j.tjpad.2026.100644","url":null,"abstract":"<p><strong>Background: </strong>Although blood-based biomarkers are now available for diagnosing Alzheimer's disease (AD), the best biomarker for AD-specific neurodegeneration and cognitive decline remains unclear. This study aimed to determine the relative importance of four plasma biomarkers-phosphorylated tau (p-tau) 217, p-tau181, neurofilament light chain (NfL), and glial fibrillary acidic protein (GFAP)-in AD-specific neurodegeneration and cognition.</p><p><strong>Methods: </strong>We analyzed cross-sectional data from two independent, ethnically distinct cohorts spanning the clinical spectrum from cognitively unimpaired to dementia: 150 participants from the SAMD cohort (100% Asian) and 284 participants from the ADNI cohort (94.0% White). Plasma biomarker levels were quantified using Single-Molecule Array (Simoa) assays. We employed dominance analysis to determine the hierarchical contributions of these biomarkers to AD signature regions of interest (ROI) thickness (entorhinal, inferior temporal, middle temporal, and fusiform regions), total cognition, and memory, stratified by amyloid-PET status. Three sensitivity analyses were further conducted to validate the findings across these cohorts, mitigating potential biases arising from differences in demographic characteristics and clinical severity. All analyses were adjusted for age, sex, education, and APOE ε4 status.</p><p><strong>Results: </strong>The dominance hierarchy differed markedly according to the amyloid status. Plasma GFAP and p-tau217 emerged as the dominant predictors for AD signature ROI thickness and cognitive impairment in amyloid-positive participants. Specifically, GFAP demonstrated superior dominance in explaining cortical atrophy within the SAMD cohort, whereas p-tau217 was the dominant predictor in the ADNI cohort. P-tau217 generally outperformed the others in explaining total cognition and memory in the amyloid (+) group. In contrast, among amyloid (-) participants, plasma NfL showed greater explanatory power than GFAP for both neurodegeneration and cognitive decline across both cohorts.</p><p><strong>Conclusion: </strong>The efficacy of plasma biomarkers in reflecting AD-related neurodegeneration varies significantly depending on the presence of amyloid pathology. While GFAP and p-tau217 are robust indicators of AD-associated changes linked to plaque pathology, NfL better reflects non-specific neurodegeneration involving axonal damage. Consequently, a stratified approach based on amyloid status is essential for the optimal application of blood-based biomarkers in monitoring disease progression and evaluating therapeutic efficacy in future clinical trials and precision medicine.</p>","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100644"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13377449/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148424422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiuyu Guo, Jiatong Shan, Kaisy Xinhong Ye, Wei Liang, Yanyu Wang, Eng-Tat Ang, Tih-Shih Lee, John Suckling, Andrea B Maier, Lei Feng
{"title":"Psychological adversities and epigenetic ageing in midlife and older age: A systematic review and meta-analysis.","authors":"Jiuyu Guo, Jiatong Shan, Kaisy Xinhong Ye, Wei Liang, Yanyu Wang, Eng-Tat Ang, Tih-Shih Lee, John Suckling, Andrea B Maier, Lei Feng","doi":"10.1016/j.tjpad.2026.100650","DOIUrl":"10.1016/j.tjpad.2026.100650","url":null,"abstract":"<p><strong>Background: </strong>Epigenetic modification is a hallmark of aging that encloses physiological information relevant to health and longevity and has been used to construct epigenetic clocks that estimate epigenetic age acceleration (EAA) to monitor population health across the life span. Psychological adversities (PA) are recognized contributors to poor health; however, their potential role in EAA remains insufficiently understood in older adults.</p><p><strong>Objective: </strong>This study systematically reviews and meta-analyzes the association between PA and EAA from midlife onward.</p><p><strong>Methods: </strong>Eligible literatures were indexed in five databases up to July 2025. Study quality was assessed using an adapted Newcastle-Ottawa scale. Meta-analyses were performed using random-effects models, followed by post hoc and sensitivity analyses to assess robustness.</p><p><strong>Results: </strong>Twenty-two studies were included, of which fifteen were classified as high quality. Irrespective of the type of psychological adversity, positive associations were consistently observed for second-generation epigenetic clocks (PhenoAge and GrimAge). Meta-analyses revealed that greater loneliness (β = 0.07, 95 % CI [0.06, 0.08], I<sup>2</sup> = 0 %, p = 0.002), depression (β = 0.08, 95 % CI [0.04, 0.13], I<sup>2</sup> = 55.2 %, p = 0.003), and stress (β = 0.10, 95 % CI [0.03, 0.16], I2 = 68.4 %, p = 0.009) were each associated with higher EAA.</p><p><strong>Conclusions: </strong>Psychosocial stress, depression, and loneliness are each associated with accelerated aging from midlife onward. Notable gaps include the lack of studies examining anxiety and underrepresentation of non-Western population. Whether alleviating psychological adversities translates into decelerated aging trajectories requests future intervention studies.</p>","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100650"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13476511/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148689911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joshi Dookhy, Yvonne McCague, Jim Hickson, Diarmuid Stokes, Thilo Kroll, Kate Frazer
{"title":"Brain health strategies in middle-aged individuals with mild neurocognitive disorder: a scoping review.","authors":"Joshi Dookhy, Yvonne McCague, Jim Hickson, Diarmuid Stokes, Thilo Kroll, Kate Frazer","doi":"10.1016/j.tjpad.2026.100657","DOIUrl":"10.1016/j.tjpad.2026.100657","url":null,"abstract":"<p><p>Brain health refers to optimal brain functioning and integrity, shaped by complex cognitive, psychological, and social determinants. Individuals with mild neurocognitive disorder (mNCD) are at higher risk of developing dementia. Prioritising brain health is essential throughout the lifespan, particularly at midlife when health risks often emerge alongside heavy life responsibilities. International frameworks emphasise addressing modifiable risk factors across the lifespan to reduce dementia risk, yet little is known about the strategies middle-aged individuals with mNCD use to maintain brain health in everyday life. Understanding how people in midlife interpret and act on information about brain health is essential to align clinical care and prevention policies with lived experience. This scoping review followed the Joanna Briggs Institute methodology and mapped data published from August 2015 to 2025 using the 2024 Lancet Commission on dementia and the Cochrane PROGRESS-Plus equity framework. The primary aim of this review was to map the range and characteristics of non-pharmacological brain health strategies used by middle-aged individuals with mNCD to reduce the risks of developing dementia. After screening 6349 records, 17 articles were included. The results are presented in three groups: brain health strategies, facilitators and barriers across strategies, and the equity analysis. Strategies were classified as formalised interventions and self-directed practices. Facilitators and barriers varied according to population characteristics and the strategies used. Equity gaps included limited representation of study participants from rural and low-socioeconomic settings, reduced generalisability to male populations, and underrepresentation of minoritised ethnic groups. Clinicians, service planners, and policymakers should prioritise equity-oriented brain health strategies co-designed with middle-aged individuals. Equity and co-design should be explicitly integrated within global brain health policies and agendas.</p>","PeriodicalId":22711,"journal":{"name":"The Journal of Prevention of Alzheimer's Disease","volume":"13 9","pages":"100657"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13499126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148758896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}