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Severe Infections Predicted Dementia After 27 Comorbidities in Finland

MHD featured image for severe infections, comorbidity, and dementia risk.

A nationwide Finnish registry study found that 2 severe infection categories still predicted dementia after adjustment for 27 noninfectious comorbid diseases.1 Cystitis and bacterial infection of an unspecified site both had adjusted rate ratios of 1.19 after comorbidity adjustment, meaning the infection-dementia association did not disappear when prior hospital-treated illnesses were modeled. Research Highlights The …

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Alzheimer’s Plasma Protein Structure Panel Reached AUCs Above 0.93

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A 2026 Nature Aging study involving 520 participants found that plasma protein-structure signatures classified healthy control, mild cognitive impairment, and Alzheimer’s disease groups with 83.44% three-way accuracy.1 The result is a serious biomarker signal, but it is not a clinic-ready replacement for established Alzheimer’s testing. Research Highlights Classification was strong: The plasma structural-proteomics panel reached …

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Under-Mattress Sensors Predict Dementia Agitation: 333-Night Cohort

Stylized illustration of an under-mattress sensor connected to a clock and waveform pattern, indicating overnight respiratory and movement signals predicting next-day behavioral risk in a dementia care setting.

Daytime agitation in dementia fluctuates day-to-day, and a 2026 explanatory study from Liu et al. used contactless under-mattress sensors in 55 long-term-care residents and an external 17-person home-monitoring cohort to show that lower nocturnal respiratory rate and higher activity instability robustly predict next-day agitation occurrence — but not severity.1 Research Highlights Lower breathing rate: adjusted …

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PTP1B Inhibition Boosted Amyloid Clearance in Alzheimer’s Mice

In APP/PS1 Alzheimer's model mice, deleting PTP1B or treating with the allosteric inhibitor DPM-1003 improved memory behavior, lowered amyloid burden, and pushed microglia toward SYK-driven clearance — a plausible mechanism, not a human treatment result yet.1 Research Highlights PTP1B loss improved behavior in APP/PS1 mice. Genetic deletion and DPM-1003 treatment improved novel object recognition and …

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Falling Dementia Rates Linked to Generational Memory Gains

Photoreal illustration representing generational gains in memory across older adults, with imagery of overlapping age trajectories and hippocampal motifs.

Dementia rates in the US, UK, Netherlands, Sweden, France, and several other high-income countries have been falling for decades, despite population aging. The standard explanation — improved cardiovascular care, more education, and less smoking in later-born cohorts — is real but incomplete. Research Highlights Dementia incidence has been falling about 13% per decade in Western …

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Migraine Linked to Cognitive Impairment in Chinese MR

Editorial card showing a brain with migraine pain pathways overlaid on genetic instrument schematic for Mendelian randomization.

A 2026 study by Bai et al. in Dialogues in Clinical Neuroscience uses Mendelian randomization (MR) — inherited genetic variants as a natural experiment to test causality — and concludes that migraines causally lower cognitive performance in a Han Chinese sample.1 The headline conclusion is plausible; the effect-size numbers in the popular MR shorthand (odds …

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Risperidone in Dementia Raised Stroke-Related Events 4.11x by Week 4

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A 2026 individual participant data meta-analysis of 1,721 dementia trial participants linked risperidone to cerebrovascular adverse events, HR 4.11 (95% CI 1.77 to 9.51), and major cardiovascular adverse events, HR 2.00 (95% CI 1.23 to 3.26).1 The timing signal is the practical warning: median first cerebrovascular event appeared at 4.3 weeks, and median first major …

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