TL;DR: A 2026 study in Molecular Neurobiology found that Antrodia cinnamomea, a medicinal fungus extract, worked best when carried on citrate-stabilized silver nanoparticles in cell and rat models of Parkinson’s-like dopamine injury. Key Findings 6-OHDA created Parkinson’s-like injury: The toxin reduced SH-SY5Y cell viability and produced unilateral dopamine-system damage in rats. Combination treatment was strongest: …
TL;DR: A 2026 protocol in PLOS One describes a 90-person pilot randomized controlled trial that will test whether virtual reality mindfulness can reduce depression, anxiety, stress, and caregiver burden in family caregivers of people with dementia. Key Findings 90-caregiver pilot: The planned sample includes 90 caregivers of community-dwelling people with dementia in Hong Kong. Three …
TL;DR: A 2026 npj Parkinson’s Disease study used brain transcriptome data and genome-scale metabolic modeling to predict Parkinson’s metabolite biomarkers, including dopamine-related changes, and separated 104 postmortem samples into three metabolic clusters. Key Findings Metabolic model: The study used TAMBOOR, a transcriptome-based metabolic modeling algorithm, to predict metabolite oversecretion and undersecretion. Brain tissue data: The …
TL;DR: A 2026 mouse study in Proceedings of the National Academy of Sciences found that deleting or inhibiting PTP1B improved memory behavior, reduced amyloid-beta burden, and pushed microglia toward an amyloid-clearing state. Key Findings Memory behavior improved: APP/PS1 mice lacking PTP1B performed better in novel object recognition and Morris water maze tests; the PTP1B inhibitor …
TL;DR: A 2025 study in The Journal of Prevention of Alzheimer’s Disease found that stress internalization, not acculturation or activity engagement, predicted memory decline across three waves in 1,528 older Chinese Americans. Key Findings Stress internalization predicted longitudinal memory decline: A latent factor combining greater perceived stress, greater hopelessness, and lower conscientiousness was the single …
TL;DR: A 2026 preprint longitudinal cohort analysis in medRxiv found that later-born cohorts showed higher memory levels entering old age and slower rates of memory decline, while the projected 20-year cohort advantage at age 80 was large enough in the model to account for a reported 13% per-decade decline in dementia incidence. Key Findings Birth-cohort …
TL;DR: A 2026 longitudinal analysis in the Journal of Affective Disorders tracked 635 older adults with new-onset loneliness and found that cognitive decline matched controls before loneliness began, then accelerated after onset, especially when loneliness persisted. Key Findings Pre-loneliness cognitive trajectories were identical: Before the first reported episode of loneliness, cognitive scores in 635 future-lonely …
TL;DR: A 2026 preprint on medRxiv using the Harvard Biomarkers Study found that 43% of Parkinson’s disease patients had depression, anxiety, sleep apnea, or restless legs syndrome, compared with 21% of controls. Key Findings 1,224-person cohort: Researchers analyzed 933 Parkinson’s disease cases and 291 controls in the Harvard Biomarkers Study. 43% mood-sleep burden: At least …
TL;DR: A 2026 medRxiv preprint applied the AT(N) framework, an Alzheimer’s disease biomarker system for amyloid, tau, and neurodegeneration, to 84 older adults with focal epilepsy and found that only 32.1% had normal blood biomarkers, while early-onset epilepsy carried higher odds of biomarker abnormality. Key Findings Epilepsy cohort: Researchers analyzed focal epilepsy participants from the …
TL;DR: A 2026 study in Microbiome found that in older adults at metabolic risk, virgin olive oil was linked to better cognitive preservation and richer gut microbiota, while common refined olive oil pointed the other way. Key Findings Metabolic-risk cohort tracked over time: The analysis followed 656 older adults who were 55-75 years old, cognitively …
