A 2026 Australian ecological model found that 20-year-lagged cumulative population blood-lead burden was nonlinearly tied to motor neuron disease mortality (lead spline p = 0.00024), while national insecticide use did not independently explain the curve after adjustment (p = 0.39).1 That is a real lead signal, but it is still population-level evidence, not proof that …
A 2026 total-body tau-PET study of 28 people with Alzheimer’s disease and 23 biomarker-negative controls found stronger brain-organ network connectivity in Alzheimer’s disease than in biomarker-negative controls: 35 altered connections, including 21 brain-body edges, plus AD-only links between brain-organ coupling, cortical tau burden, MRI-derived glymphatic markers, and cognition.1 The result is best read as a …
A 2026 longitudinal MRI preprint involving 54 people with Friedreich ataxia and 57 controls found 3 biologically interpretable progression subtypes: microstructure-dominant, macrostructure-dominant, and minimal/no progression.1 The clusters make biomarker heterogeneity visible at the research level, while the classifier remains too early to assign individual patients to treatment paths. Research Highlights 3 MRI progression subtypes emerged: …
Multiple system atrophy is a rapidly progressive neurodegenerative disease with no proven disease-modifying therapy. A 2026 review by Jeong and colleagues tracks two decades of repurposed-drug trials, with one recent positive Phase 2 result.1 Research Highlights Multiple system atrophy (MSA) is a fatal α-synuclein disorder distinct from Parkinson’s disease. It progresses faster than PD (median …
Calorie restriction (CR) is increasingly recognized for its potential benefits beyond just weight loss, including reducing anxiety, slowing aging, and mitigating the risk of obesity. Recent research focused on how both short-term and long-term CR affect behavior and gene expression in various brain regions, providing insights into the molecular underpinnings of these effects. Highlights: Behavioral …
Recent research has uncovered connections between the use of antidepressants and the risk of developing dementia in the elderly. This complex relationship, marked by varying results and considerations, is becoming a critical area of study in geriatric medicine and mental health. In light of these findings, it is crucial to delve into the nuances of …
Microplastics and nanoplastics (MNPs) from the breakdown of plastic materials pollute the environment and make their way into the human body, raising concerns over potential health impacts. Research shows that microplastics and nanoplastics are able to cross the blood-brain barrier in mice within 2 hours of ingestion. Key Facts: Polystyrene nanoparticles with a size of …