A 9-person randomized crossover neuroimaging substudy found that high-polyphenol extra-virgin olive oil increased occipital resting-state functional connectivity compared with regular olive oil, beta = 0.20, 95% CI 0.03 to 0.37, p = 0.016.1 The result is a measurable brain-signal finding, but the clinical claim stays small: connectivity changed, cognition was not the endpoint. Research Highlights …
An Italian multiple sclerosis Delphi panel reached consensus on 116 of 166 votes, meaning 70% of expert votes aligned and 30% still exposed disagreement about personalized therapy, patient involvement, and treatment sequencing.1 The result supports individualized MS treatment planning, but it is consensus evidence rather than proof that one disease-modifying therapy fits every high-risk patient. …
A 2026 Nature Communications mouse study tested 7,736 possible connections in the hippocampal CA3 memory circuit and found a developmental shift from dense early wiring toward sparse structured adult wiring: corrected CA3-to-CA3 connection probability fell from 6.37% at P7-8 to 2.17% at P45-50.1 The finding supports a circuit-level version of memory maturation, not a claim …
A 2026 mechanistic review linked microplastics to 6 proposed Alzheimer’s disease pathways and 6 proposed Parkinson’s disease pathways.1 The calibrated interpretation is that microplastics are biologically plausible brain stressors, but the human evidence does not yet prove that they cause Parkinson’s disease or Alzheimer’s disease. Research Highlights Exposure is widespread: the review cited an estimate …
A 36-person Parkinson’s disease balance study found that perturbation-evoked muscle activity could be split into brainstem-latency LLR1 responses around 116-119 ms, cortical-latency LLR2 responses around 200-215 ms, and an antagonist destabilizing component around 173-181 ms.1 Parkinson’s disease lowered clinical balance scores, but the broad claim that Parkinson’s patients had higher cortical-latency LLR2 responses than older …
A 2026 mouse study found that Theiler’s murine encephalomyelitis virus (TMEV) injected into the substantia nigra produced persistent Parkinson’s-like motor signals through 20 weeks, including apomorphine-induced rotations at every measured post-injection timepoint.1 The finding makes TMEV a useful viral-neuroinflammation model of dopamine-neuron injury, but it does not show that Theiler’s virus causes human Parkinson’s disease. …
A 2026 meta-analysis of 54 human studies found that 8-hydroxy-2′-deoxyguanosine rose in Parkinson’s disease, while F2-isoprostanes did not show a statistically confirmed Parkinson’s signal; type 2 diabetes showed much larger peripheral oxidative-stress elevations than Parkinson’s disease for both biomarkers. Research Highlights Parkinson’s DNA-oxidation signal was moderate: Msigwa et al. pooled 5 Parkinson’s disease studies with …