MentalHealthDaily

Early Parkinson’s Non-Motor Symptoms Differed by Sex After Levodopa

by GLOOM

MHD featured image for Parkinson's non-motor symptom sex differences.

A 2026 multicenter Italian cohort followed 216 early Parkinson’s disease patients for 24 months after levodopa initiation and found sex/gender differences in non-motor symptom burden.1 Women had higher anxiety, pain, mobility, and emotional-well-being burden, while men had higher hypersexuality. Research Highlights Longitudinal sample: The study followed 216 early levodopa-naive Parkinson patients, including 139 men and …

Alzheimer’s Smell Loss Linked to Early Locus Coeruleus Axon Damage

by GLOOM

MHD featured image for early locus coeruleus axon loss and Alzheimer's smell dysfunction.

A 2025 Nature Communications study found that Alzheimer’s-like mice lost locus coeruleus noradrenergic axons in the olfactory bulb early: 14% loss by 2 months, 27% by 3 months, and 33% by 6 months, before broader forebrain axon degeneration appeared.1 Early smell loss may reflect a specific brainstem-to-olfactory circuit injury, while smell testing still needs biomarker …

FTL1 Iron Protein Reversal Improved Cognitive Aging in Old Mice

by GLOOM

MHD featured image for FTL1, iron biology, and cognitive aging in mice.

A 2025 Nature Aging study found that hippocampal ferritin light chain 1 (FTL1) rose with age in mouse neurons, tracked poorer cognition, and became experimentally reversible in old mice. This is an animal-mechanism result, not a human anti-aging treatment.1 Research Highlights FTL1 rose in aged hippocampus: Western blot data showed higher hippocampal FTL1 in aged …

C9orf72 ALS/FTD Inflammation Linked to Microbial Glycogen in Gut

by GLOOM

MHD featured image for C9orf72, microbial glycogen, gut inflammation, and ALS/FTD risk.

A Cell Reports study tied C9orf72-related ALS/FTD inflammation to a gut-bacterial product: inflammatory microbial glycogen appeared in 15 of 22 ALS fecal samples, 1 of 1 C9orf72-frontotemporal dementia sample, and 4 of 12 healthy controls.1 The result supports a narrower gene-by-microbial-product mechanism that makes C9orf72 loss of function more inflammatory. Research Highlights Human samples carried …

Post-Stroke Deep Gray Nuclei MRI Predicted 3-Month Recovery

by GLOOM

MHD featured image for post-stroke deep gray nuclei MRI and recovery prediction.

A 2026 automated MRI analysis of 153 adults with first cortical middle cerebral artery stroke found that remote deep gray nuclei changes were already measurable within 21 days, and 2 asymmetry markers independently predicted 3-month disability change: putamen volume Z-score asymmetry (β = −0.24; p = 0.021) and thalamic apparent diffusion coefficient asymmetry (β = …

Ultra-Processed Foods Linked to Lower Attention in 2,192 Adults

by GLOOM

MHD featured image for ultra-processed foods, attention, and dementia-risk scores.

A 2026 Australian study involving 2,192 dementia-free adults found that each 10% higher ultra-processed food intake was associated with 0.05-point lower attention and 0.24-point higher modified CAIDE dementia-risk score.1 The memory result was not significant, so the honest read is attention and risk-score signal, not global cognitive collapse. Research Highlights Attention was lower: Each 10% …

NMDAR/TRPM4 Death Complex Blocker Preserved Memory in Alzheimer’s Mice

by GLOOM

MHD featured image for the NMDAR/TRPM4 death complex, FP802, and Alzheimer's mouse-model memory protection.

A 2026 Molecular Psychiatry study found that oral FP802 disrupted the NMDAR/TRPM4 death complex and preserved memory-task performance in 5xFAD Alzheimer’s mice treated for 3 months.1 The finding is mechanistically sharper than a generic anti-amyloid claim: FP802 targeted a glutamate-toxicity complex downstream of amyloid stress. Research Highlights Complex formation was blocked: 5xFAD mice had increased …