Alzheimer's disease
Alzheimer's disease is a progressive neurodegenerative disorder and the most common cause of dementia in older adults.
Alzheimer's disease is a progressive neurodegenerative disorder and the most common cause of dementia in older adults. It is defined clinically by gradual decline in memory, executive function, language and other cognitive domains, and pathologically by extracellular amyloid-β plaques and intraneuronal neurofibrillary tangles of hyperphosphorylated tau, accompanied by synaptic loss, neuroinflammation and neuronal death. The two lesions do not track the illness equally: amyloid accumulates first and correlates poorly with symptom severity, whereas tau spreads through connected regions in a stereotyped sequence that follows the clinical decline closely. Risk is dominated by age and by the ε4 allele of Apolipoprotein E, which raises risk in a dose-dependent way without determining outcome; rare autosomal dominant mutations in APP, PSEN1 and PSEN2 cause early-onset disease and supplied much of the evidence for amyloid's causal role. The condition is now framed as a clinical-biological continuum spanning presymptomatic pathology, mild cognitive impairment and overt dementia rather than a purely symptom-based diagnosis.
That reframing rests on biomarkers that detect the pathology directly: amyloid and tau PET imaging, cerebrospinal fluid Aβ42/40 ratio and phosphorylated tau, and more recently plasma p-tau217, whose accuracy has begun to move diagnosis out of specialist centers. Beyond the two proteins, the biology implicates microglial activation, cellular senescence, oxidative stress, mitochondrial impairment and disturbed metabolic signaling. The intersection with metabolic disease is a prominent current theme: impaired insulin sensitivity and type 2 diabetes are associated with elevated dementia risk, and glucagon-like peptide-1 receptor agonists were pursued as candidate therapies on that reasoning. That line has now returned its first definitive answer: the evoke and evoke+ phase 3 trials found oral semaglutide no better than placebo on Clinical Dementia Rating-Sum of Boxes in 3808 people with early disease and were completed and reported negative results. Dual glucose-dependent insulinotropic polypeptide (GIP) and GLP-1 receptor agonists such as tirzepatide remain under investigation.
Treatment has recently changed in kind if not yet in degree. cholinesterase inhibitors and memantine remain symptomatic only, while anti-amyloid monoclonal antibodies that clear plaque have shown modest slowing of decline in early disease — the first disease-modifying effect demonstrated — at the cost of amyloid-related imaging abnormalities, which are more frequent and more dangerous in ε4 homozygotes and require MRI monitoring. tau-directed agents are in trials. The disease frequently co-occurs with or is studied against other neurodegenerative conditions, notably Parkinson's disease, and shares molecular players such as microtubule-associated protein tau (MAPT) and inflammatory mediators like tumor necrosis factor-α; computational and imaging approaches, including machine-learning analysis of MRI and bio-electrical signals, continue to be pursued for biomarker discovery and risk stratification.
Where the papers sit
26 papers from the last 6 months study alzheimer's disease directly · updated from PubMed 10 Oct 2026
Study type 1 clinical trial · 6 observational · 9 human data · 7 preclinical · 3 unclassified
Themes 4 themes · 1 new direction
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Microglia and Amyloid Pathology
Microglial state, amyloid beta and lysosomal dysfunction remain the central links between inflammation and neuronal injury. Extracellular vesicles, celastrol, ribavirin and manganese-oxide nanocomposites are being used to reprogram microglia, restore lysosomal function or suppress the integrated stress response. Transcriptomic and metabolomic signatures seek diagnostic markers, while cholinesterase inhibitors add symptomatic and neuroprotective strategies. The field is moving toward mechanism-linked combination therapies, but most evidence remains preclinical and model-dependent.
9 papers · 34.6%
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Metabolic Links to Dementia
Insulin resistance and type 2 diabetes are being linked to dementia through shared genetic signals and prospective risk estimates. Antidiabetic medication studies ask whether treatment changes cognitive-disorder risk, while Lewy body and Alzheimer biomarkers sharpen diagnostic stratification. Metabolomic platforms are adding serum signatures to this clinical picture. The stimulation protocol is exploratory, so evidence still favors risk characterization over a settled metabolic intervention.
6 papers · 23.1%
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Alzheimer's Care and Treatment
Alzheimer's care is expanding beyond standard drug treatment to culturally tailored music therapy, complementary compounds and drug repurposing. Anti-herpetic exposure is being tested as a possible modifier of later treatment initiation, while Majoon-e-Boolis and Schisandra remain preclinical or mechanistic. Automated analysis of bio-electrical signals aims to improve biomarker discovery. The approaches share a therapeutic and diagnostic goal but not a convergent clinical direction.
6 papers · 23.1%
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Cross-Disease Neurodegeneration
Neurodegenerative disease is being studied across diagnoses and clinical contexts rather than in isolation. Shared microglial transcriptional programs and SPP1 provide a cross-disease biomarker lead, while cohort work links neurodegeneration to biological aging, cardiovascular disease and mortality. Sequencing and localized feature selection support finer-grained risk discovery, with cancer-treatment cohorts adding treatment-related dementia questions. The set is converging on comparative biomarkers and risk stratification, but mechanisms and clinical implications remain open.
5 papers · 19.2%
Alzheimer’s disease biomarkers become prognostic markers within very late-onset schizophrenia-like psychosis
The very late-onset schizophrenia-like psychosis cohort studied AD and Lewy body disease biomarker status as determinants of progression in a psychiatric syndrome, rather than treating AD solely as the disease being diagnosed, modeled, or treated. Biomarker-positive participants showed more frequent dementia progression than biomarker-negative participants, and five of eight participants with AD biomarker positivity progressed to AD dementia. This recasts AD-related pathology as a latent neurodegenerative substrate that helps explain the course of another clinical disorder, creating a role not otherwise represented in the set 42575875Aug.
Papers
The 26 papers from the last 6 months that study alzheimer's disease directly, newest first, by theme and by study type. Study types come from PubMed publication types and MeSH headings.
By theme
Microglia and Amyloid Pathology (9)
- Human amniotic mesenchymal stromal cell-derived extracellular vesicles reprogram microglia and prevent neurodegeneration in experimental models of Alzheimer's disease. Translational neurodegeneration · 9 Sept 2026 PMID 42711740
- Transcriptomic Signatures of Microglial Phagocytosis Reveal Diagnostic Markers and Immune Landscape in Alzheimer's Disease. FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 28 Aug 2026 PMID 42663999
- Kaempferol-Conjugated Manganese Oxide Nanocomposites Mitigate Aluminium Chloride-Induced Neurobehavioral Impairments in a Rat Model of Alzheimer's disease. Journal of molecular neuroscience : MN · 4 Aug 2026 PMID 42550339
- New Genetic Associations Between Alzheimer's Disease and Its Key Risk Factors. Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 31 Jul 2026 PMID 42535978
- Integrating transcriptome, metabolome and 16S rRNA sequencing to reveal the effect of celastrol on Alzheimer's disease in rats. Scientific reports · 20 Jul 2026 PMID 42477465
- Eugenol-derived carbamates as sub-nanomolar dual cholinesterase inhibitors with neuroprotective activity against Alzheimer's disease: Structure-activity relationships and molecular dynamics insights. Bioorganic chemistry · 13 Jul 2026 PMID 42442298
- Ribavirin mitigates Alzheimer's disease model phenotypes by enhancing lysosomal function and suppressing ISR. Bioorganic chemistry · 30 Jun 2026 PMID 42379016
- Reducing annotation burden in medical imaging with ADGNET: A semi-supervised deep learning strategy. PloS one · 4 May 2026 PMID 42081490
- Constellation Plots in KNIME: An Automated Scaffold-Based Workflow for Interactive Chemical Space Visualization. Molecular informatics · 30 Apr 2026 PMID 42057585
Metabolic Links to Dementia (6)
- Advantage of cerebellar intermittent theta-burst stimulation in Alzheimer's disease (ACT-AD): study protocol for a multicenter, randomized, double-blind, sham-controlled trial. Trials · 9 Oct 2026 PMID 42855713
- Elucidating shared genetic signals between type 2 diabetes and three neurodegenerative dementia phenotypes. HGG advances · 2 Sept 2026 PMID 42681870
- Antidiabetic medications and risk of cognitive disorders in type 2 diabetes: A retrospective cohort study. PloS one · 24 Aug 2026 PMID 42636218
- Progression to Dementia in Very Late-Onset Schizophrenia-Like Psychosis Stratified by Alzheimer's Disease and Lewy Body Disease Biomarkers: A Retrospective Cohort Study. Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 10 Aug 2026 PMID 42575875
- Associations of Insulin Sensitivity with Risk of All-Cause and Cause-Specific Dementia: A Prospective Cohort Study. Molecular neurobiology · 18 Jul 2026 PMID 42470526
- An LC-MS-guided AI enabled serum molecule-interpretable SERS platform for exploratory metabolomic analysis in Alzheimer's disease. Analytica chimica acta · 30 May 2026 PMID 42218000
Alzheimer's Care and Treatment (6)
- Characterising patients with Alzheimer's disease in England: a cohort study using data from Clinical Practice Research Datalink linked to Hospital Episode Statistics. BMJ open · 28 Aug 2026 PMID 42665355
- Majoon-e-Boolis as a neurotherapeutic agent: cognitive and neuronal restoration in alzheimer's disease model. Metabolic brain disease · 12 Aug 2026 PMID 42584743
- CausalTCC: causal temporal contrastive learning for automated Alzheimer's disease biomarker discovery with bio-electrical signals. Journal of neural engineering · 2 Jul 2026 PMID 42392133
- Association between the use of anti-herpetic drugs and subsequent initiation of Alzheimer's disease drug treatment: Dutch population-based inception cohort study. BMJ open · 15 Jun 2026 PMID 42297456
- MusicAlzheimer: AI-Powered, Culturally Tailored Digital Music Therapy Prototype for Alzheimer Disease Care. JMIR formative research · 13 May 2026 PMID 42127381
- Exploring the differences in efficacy and mechanisms of Schisandra chinensis and its processed products in treating Alzheimer's disease based on UPLC-Q-TOF-MS/MS, network pharmacology, and experimental validation. Fitoterapia · 5 May 2026 PMID 42086126
Cross-Disease Neurodegeneration (5)
- Uncovering heterogeneous effects via localized feature selection. Proceedings of the National Academy of Sciences of the United States of America · 15 Sept 2026 PMID 42743276
- Dementias in Older Women With Early-Stage HER2-Negative Breast Cancer Treated With Anthracycline Plus Taxane Versus Taxane-Based Chemotherapy Regimens. Pharmacoepidemiology and drug safety · 29 Aug 2026 PMID 42665946
- Accelerated Biological Aging, Neurodegenerative Disease, and Mortality in Cardiovascular Disease Patients: Mediation and Modification Analysis. CNS neuroscience & therapeutics · 29 Jul 2026 PMID 42524837
- EPIC4ND-European Prospective Investigation into Cancer and Nutrition follow-up for neurodegenerative diseases. European journal of epidemiology · 22 Jul 2026 PMID 42484778
- A Cross-Disease Microglial Transcriptional Program Characterizes Neurodegeneration and Highlights SPP1 as a Biomarker. Glia · 21 Apr 2026 PMID 42011986
By study type
Clinical trials (1)
- Advantage of cerebellar intermittent theta-burst stimulation in Alzheimer's disease (ACT-AD): study protocol for a multicenter, randomized, double-blind, sham-controlled trial. Trials · 9 Oct 2026 PMID 42855713
Observational studies and case reports (6)
- Dementias in Older Women With Early-Stage HER2-Negative Breast Cancer Treated With Anthracycline Plus Taxane Versus Taxane-Based Chemotherapy Regimens. Pharmacoepidemiology and drug safety · 29 Aug 2026 PMID 42665946
- Characterising patients with Alzheimer's disease in England: a cohort study using data from Clinical Practice Research Datalink linked to Hospital Episode Statistics. BMJ open · 28 Aug 2026 PMID 42665355
- Antidiabetic medications and risk of cognitive disorders in type 2 diabetes: A retrospective cohort study. PloS one · 24 Aug 2026 PMID 42636218
- Progression to Dementia in Very Late-Onset Schizophrenia-Like Psychosis Stratified by Alzheimer's Disease and Lewy Body Disease Biomarkers: A Retrospective Cohort Study. Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 10 Aug 2026 PMID 42575875
- Associations of Insulin Sensitivity with Risk of All-Cause and Cause-Specific Dementia: A Prospective Cohort Study. Molecular neurobiology · 18 Jul 2026 PMID 42470526
- Association between the use of anti-herpetic drugs and subsequent initiation of Alzheimer's disease drug treatment: Dutch population-based inception cohort study. BMJ open · 15 Jun 2026 PMID 42297456
Human data, design not indexed (9)
- Uncovering heterogeneous effects via localized feature selection. Proceedings of the National Academy of Sciences of the United States of America · 15 Sept 2026 PMID 42743276
- Transcriptomic Signatures of Microglial Phagocytosis Reveal Diagnostic Markers and Immune Landscape in Alzheimer's Disease. FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 28 Aug 2026 PMID 42663999
- New Genetic Associations Between Alzheimer's Disease and Its Key Risk Factors. Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 31 Jul 2026 PMID 42535978
- Accelerated Biological Aging, Neurodegenerative Disease, and Mortality in Cardiovascular Disease Patients: Mediation and Modification Analysis. CNS neuroscience & therapeutics · 29 Jul 2026 PMID 42524837
- CausalTCC: causal temporal contrastive learning for automated Alzheimer's disease biomarker discovery with bio-electrical signals. Journal of neural engineering · 2 Jul 2026 PMID 42392133
- An LC-MS-guided AI enabled serum molecule-interpretable SERS platform for exploratory metabolomic analysis in Alzheimer's disease. Analytica chimica acta · 30 May 2026 PMID 42218000
- MusicAlzheimer: AI-Powered, Culturally Tailored Digital Music Therapy Prototype for Alzheimer Disease Care. JMIR formative research · 13 May 2026 PMID 42127381
- Reducing annotation burden in medical imaging with ADGNET: A semi-supervised deep learning strategy. PloS one · 4 May 2026 PMID 42081490
- Constellation Plots in KNIME: An Automated Scaffold-Based Workflow for Interactive Chemical Space Visualization. Molecular informatics · 30 Apr 2026 PMID 42057585
Preclinical: animal, cell and lab studies (7)
- Human amniotic mesenchymal stromal cell-derived extracellular vesicles reprogram microglia and prevent neurodegeneration in experimental models of Alzheimer's disease. Translational neurodegeneration · 9 Sept 2026 PMID 42711740
- Majoon-e-Boolis as a neurotherapeutic agent: cognitive and neuronal restoration in alzheimer's disease model. Metabolic brain disease · 12 Aug 2026 PMID 42584743
- Kaempferol-Conjugated Manganese Oxide Nanocomposites Mitigate Aluminium Chloride-Induced Neurobehavioral Impairments in a Rat Model of Alzheimer's disease. Journal of molecular neuroscience : MN · 4 Aug 2026 PMID 42550339
- Eugenol-derived carbamates as sub-nanomolar dual cholinesterase inhibitors with neuroprotective activity against Alzheimer's disease: Structure-activity relationships and molecular dynamics insights. Bioorganic chemistry · 13 Jul 2026 PMID 42442298
- Ribavirin mitigates Alzheimer's disease model phenotypes by enhancing lysosomal function and suppressing ISR. Bioorganic chemistry · 30 Jun 2026 PMID 42379016
- Exploring the differences in efficacy and mechanisms of Schisandra chinensis and its processed products in treating Alzheimer's disease based on UPLC-Q-TOF-MS/MS, network pharmacology, and experimental validation. Fitoterapia · 5 May 2026 PMID 42086126
- A Cross-Disease Microglial Transcriptional Program Characterizes Neurodegeneration and Highlights SPP1 as a Biomarker. Glia · 21 Apr 2026 PMID 42011986
Unclassified: not yet indexed with MeSH (3)
- Elucidating shared genetic signals between type 2 diabetes and three neurodegenerative dementia phenotypes. HGG advances · 2 Sept 2026 PMID 42681870
- EPIC4ND-European Prospective Investigation into Cancer and Nutrition follow-up for neurodegenerative diseases. European journal of epidemiology · 22 Jul 2026 PMID 42484778
- Integrating transcriptome, metabolome and 16S rRNA sequencing to reveal the effect of celastrol on Alzheimer's disease in rats. Scientific reports · 20 Jul 2026 PMID 42477465
Written from 26 PubMed abstracts, each one listed by PMID above. Published: 2026-06-28. Last written: 2026-09-17 by GPT. Corrections: 2026-09-26 by GPT. Reviewed by a human editor on 2026-07-24. Drafted by language models from published abstracts; not medical advice.