miR-425-3p Review Links Depression Biomarker Candidate to MAPK and Wnt Pathways

miR-425-3p Review Links Depression Biomarker Candidate to MAPK and Wnt Pathways

TL;DR: A 2026 review in Neuropsychiatric Disease and Treatment argues that miR-425-3p is a candidate depression biomarker because it connects stress biology, MAPK/Wnt signaling, inflammation, and antidepressant response evidence. Key Findings 280 million MDD burden: The review opens from the scale of major depressive disorder, which affects more than 280 million people worldwide. About 20-fold …

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Kainate Receptor Structures Showed How Partial Occupancy Avoided Desensitization

Kainate Receptor Structures Showed How Partial Occupancy Avoided Desensitization

TL;DR: A 2026 study in Nature Communications used cryo-electron microscopy and patch-clamp recordings to show how partially occupied GluK2/GluK5 kainate receptors can activate without entering the fast desensitized state that normally shuts glutamate receptors down. Key Findings Fast glutamate shutdown: Glutamate triggered receptor activation in less than 1 ms, followed by complete desensitization in about …

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Inhaled CBD Reduced IDO and cGAS Neuroinflammation Signals in Alzheimer Mice

Inhaled CBD Reduced IDO and cGAS Neuroinflammation Signals in Alzheimer Mice

TL;DR: A 2025 mouse study in eNeuro reported that inhaled cannabidiol reduced IDO and cGAS pathway activity and lowered pro-inflammatory cytokines in male 5XFAD Alzheimer’s model mice. Key Findings 5XFAD model: The study used male 5XFAD transgenic mice, a common amyloid-heavy Alzheimer’s disease model. Inhaled CBD: Cannabidiol was administered by inhalation rather than by oral …

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Indoleacrylic Acid Linked to PFO-Migraine Metabolomics

Indoleacrylic Acid Linked to PFO-Migraine Metabolomics

TL;DR: A 2026 study in iScience found that migraine patients with patent foramen ovale had altered plasma metabolic profiles, with lower indoleacrylic acid and an IA-plus-hs-CRP marker pair showing exploratory discrimination in a validation cohort. Key Findings 30 discovery patients: Untargeted metabolomics compared 30 migraine patients with patent foramen ovale against 17 matched controls. 4,858 …

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Hypothalamic SF1 Neurons Help Drive Exercise Endurance Gains

Hypothalamic SF1 Neurons Help Drive Exercise Endurance Gains

TL;DR: A 2026 mouse study in Neuron found that exercise activates ventromedial hypothalamic SF1 neurons, and that this brain response is required for normal endurance gains after training. Key Findings VMH SF1 neurons: Exercise increased activity-linked Bdnf expression in steroidogenic factor-1 neurons in the ventromedial hypothalamus. Training plasticity: Repeated exercise increased both intrinsic excitability and …

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GLP-1 Receptor Agonists Not Ready for Acute Stroke Neuroprotection, Review Finds

GLP-1 Receptor Agonists Not Ready for Acute Stroke Neuroprotection, Review Finds

TL;DR: A 2026 narrative review in Journal of Central Nervous System Disease found that glucagon-like peptide-1 receptor agonists have promising stroke-prevention and animal-model evidence, but human data do not yet support routine use as an acute ischemic stroke neuroprotective treatment. Key Findings Search through January 2026: The review covered preclinical stroke models, observational studies, randomized …

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Glial Mitochondrial Transfer Protected Sensory Neurons From Neuropathy

Glial Mitochondrial Transfer Protected Sensory Neurons From Neuropathy

TL;DR: A 2026 Nature study found that satellite glial cells can transfer mitochondria to sensory neurons, and blocking that transfer in mice promoted nerve degeneration and neuropathic pain. Key Findings 83.3% transfer: In mouse co-cultures, 83.3% of dorsal root ganglion neurons received mitochondria from satellite glial cells. 31.3% TNT-positive: Visible tunnelling nanotubes were seen in …

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Autoimmune Mechanisms May Explain Some Drug-Resistant Focal Epilepsy

Autoimmune Mechanisms May Explain Some Drug-Resistant Focal Epilepsy

TL;DR: A 2026 review in Advances in Clinical and Experimental Medicine argues that autoimmune mechanisms may explain a subset of drug-resistant focal epilepsy, especially when seizures persist despite standard antiseizure drugs and immune markers are present. Key Findings Drug resistance definition: Drug-resistant epilepsy was defined as persistent seizures despite at least two appropriately selected, tolerated, …

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Angiopep NK Vesicles Delivered Temozolomide in Glioblastoma Mice

Angiopep NK Vesicles Delivered Temozolomide in Glioblastoma Mice

TL;DR: A 2026 study in Journal of Nanobiotechnology found that Angiopep-2-modified natural killer cell extracellular vesicles carried temozolomide across glioblastoma barriers, reduced mouse tumor bioluminescence, and extended median survival in an orthotopic GBM model. Key Findings 2.5-3.2x uptake: Angiopep-2 modification increased glioblastoma-cell uptake of NK extracellular vesicles compared with unmodified NK-EV. 2.8-3.5x BBB transport: Ang-NK-EV@TMZ …

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Amyloid, Tau, and Neurodegeneration Axes Mapped Alzheimer’s Heterogeneity

Amyloid, Tau, and Neurodegeneration Axes Mapped Alzheimer's Heterogeneity

TL;DR: A 2026 preprint in medRxiv used amyloid positron-emission tomography, tau molecular imaging, and structural MRI to build individualized Alzheimer’s disease biomarker axes from ADNI and validate them in OASIS. Key Findings 12,430 ADNI images: The pipeline harmonized longitudinal amyloid-beta and tau positron-emission tomography images plus T1 MRI gray matter images from ADNI. 4,958 OASIS …

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