Depression Reduced Alpha-Beta Reward Signaling in Movement Disorder Patients

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Depression Reduced Alpha-Beta Reward Signaling in Movement Disorder Patients

TL;DR: A 2026 study in eNeuro used intracranial electroencephalography (EEG), a recording method for brain electrical activity, during deep brain stimulation surgery and found that Parkinson’s disease and essential tremor patients with elevated depression symptoms had weaker corticostriatal alpha-beta reward signaling. Key Findings 30 DBS patients participated: The sample included 14 Parkinson’s disease patients and …

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Fisetin Plus Training Improved Maresin-1 and HOMA-IR in Obesity Trial

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Fisetin Plus Training Improved Maresin-1 and HOMA-IR in Obesity Trial

TL;DR: A 2026 randomized trial in Journal of the International Society of Sports Nutrition found that 12 weeks of combined interval resistance and aerobic training increased Maresin-1, an inflammation-resolving lipid mediator, in men with obesity, with the largest insulin-resistance improvement when training was paired with 200 mg/day fisetin. Key Findings 44 men completed the trial: …

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CBT Online Self-Help Group Reduced Depression Symptoms in RCT

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CBT Online Self-Help Group Reduced Depression Symptoms in RCT

TL;DR: A 2026 randomized trial in JMIR mHealth and uHealth found that a 7-session CBT-based online self-help group reduced depression symptoms, with the average Beck Depression Inventory-II score moving from the moderate range to the mild range after the program. Key Findings Depression scores decreased: The CBT-based online self-help group fell from a mean BDI-II …

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Academic Stress Protocol Will Track Depression, Cortisol, Diet, and Sleep

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Academic Stress Protocol Will Track Depression, Cortisol, Diet, and Sleep

TL;DR: A 2026 study protocol in PLOS One describes a planned longitudinal study that will track academic stress, depressive symptoms, diet, sleep-related wearable measures, salivary cortisol, and other health indicators across a university semester, but it does not yet report outcome results. Key Findings Study protocol only: The source describes the planned design and hypotheses; …

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Post COVID-19 Condition Linked to Fatigue, Sleep, Mood, and Subjective Cognition

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Post COVID-19 Condition Linked to Fatigue, Sleep, Mood, and Subjective Cognition

TL;DR: A 2026 cross-sectional study in PLOS One found that people with post COVID-19 condition reported worse quality of life, fatigue, sleep, psychological wellbeing, and subjective cognition than COVID-19 survivors without the condition, while many objective lung, metabolic, and cognitive tests did not differ. Key Findings 139-person Dutch cohort: The study included 87 people with …

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Alzheimer Plasma Proteomics Favored Continuous Molecular Axes

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Alzheimer Plasma Proteomics Favored Continuous Molecular Axes

TL;DR: A 2026 preprint in medRxiv analyzed plasma proteomics in Alzheimer’s disease and mild cognitive impairment and found that four continuous molecular axes described the data better than hard subtype labels. Key Findings 5,895-person AD/MCI sample: The discovery analysis used one record per participant from the Global Neurodegeneration Proteomics Consortium. 81.5% module-space variance: Four continuous …

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Alzheimer Biomarker-Clock Analysis Can Create Countdown Paradox

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Alzheimer Biomarker-Clock Analysis Can Create Countdown Paradox

TL;DR: A 2026 preprint in medRxiv warned that a standard Alzheimer’s disease biomarker-clock analysis can create a countdown paradox, where later biomarker-clock ages appear linked to faster mild cognitive impairment onset because of the way remaining time is calculated. Key Findings 100% false positives in simple null simulations: The standard countdown analysis rejected the null …

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Creatine Monohydrate Showed Mixed Depression Trial Results

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Creatine Monohydrate Showed Mixed Depression Trial Results

TL;DR: A 2026 review in Brain Medicine found mixed randomized-trial evidence for creatine monohydrate as an add-on depression treatment: 2 of 5 trials showed symptom benefits, while 3 did not find a clear advantage. Key Findings Five randomized trials were reviewed: The review summarized 238 baseline participants across trials of creatine monohydrate for mood disorders. …

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DLPFC Pain Maps Converged in Brodmann Areas 8, 9, and 46

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DLPFC Pain Maps Converged in Brodmann Areas 8, 9, and 46

TL;DR: A 2026 review and activation-likelihood estimation study in European Journal of Pain found that the dorsolateral prefrontal cortex (dlPFC), a frontal control region, was repeatedly engaged in acute pain, chronic pain, and placebo analgesia, mainly across Brodmann areas 8, 9, and 46. Key Findings 138 studies included: The review screened 4810 deduplicated records and …

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GRANPA Let Diphenhydramine Inhibit Brain Circuits in Mouse Models

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GRANPA Let Diphenhydramine Inhibit Brain Circuits in Mouse Models

TL;DR: A 2026 study in Signal Transduction and Targeted Therapy engineered a modified inhibitory DREADD receptor called GRANPA so the over-the-counter antihistamine diphenhydramine could switch off targeted brain circuits and reduce seizure activity in mouse models. Key Findings Two added receptor mutations: The lead GRANPA receptor combined hM4Di with S85V and Y416F mutations to improve …

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