Mental Health Daily

PINK1 and Parkin Link Parkinson’s Disease to Failed Mitochondrial Cleanup

by GLOOM

MHD featured image for PINK1, parkin, mitophagy, and mitochondrial cleanup in Parkinson's disease.

A 2026 review ties the Parkinson’s disease genes PINK1 and parkin to damaged-mitochondria cleanup, from damage sensing and ubiquitin tagging to autophagy recruitment and lysosomal degradation.1 That shifts “mitochondrial dysfunction” into specific failure points: tagging, extraction, transport, autophagosome recruitment, and degradation. Research Highlights 18 PARK loci frame inherited risk: PARK2 encodes parkin and PARK6 encodes …

Stress Suppressed Food-Cue Reward Through NTS A2 Dopamine Circuits

by GLOOM

MHD featured image for stress, food cues, NTS A2 neurons, and dopamine reward circuitry.

A 2026 rat study found that foot-shock stress transiently reduced food-cue approach during the first 2 conditioned-stimulus trials (t = 2.807; P < 0.05), and inhibiting the nucleus of the solitary tract weakened that stress effect.1 The useful finding is selective: stress used an NTS-linked route to dampen cue-evoked VTA dopamine, while outcome-specific satiety reduced ...

Video Calls Preserved Empathy for Pain in EEG Study

by GLOOM

MHD featured image for video calls, empathy for pain, and EEG.

A 35-person EEG study found that pain empathy did not collapse when live two-way video was replaced by prerecorded viewing: observer-target pain-rating correlations were nearly identical during video calls and recordings, r = 0.65 vs. r = 0.64, both p < 0.001.1 The calibrated read is narrow but useful: temporal immediacy was not required for …

Restless Legs in Pregnancy: Stepped-Care Recommendations

by GLOOM

Restless legs syndrome (RLS), now also called Willis-Ekbom disease (WED), is a sleep-disrupting neurologic disorder that affects roughly 20–30% of pregnancies in some series and is linked to preeclampsia, increased cesarean delivery, and perinatal depression. A 2026 Nature and Science of Sleep synthesis turned 9 source documents into 27 practice recommendations across 5 domains, ending …

Parent Youth Quality-of-Life Scale Linked to Suicidality at r = -0.50

by GLOOM

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A 2,251-child national parent-report preprint found that the 7-item Parent-report Nationwide Quality of Life Scale had internal reliability of alpha = 0.85 and correlated most strongly with suicidality (r = -0.50), depression (r = -0.47), and internalizing symptoms (r = -0.43).1 Research Highlights Reliability was solid for a brief scale: the 7-item parent P-NQLS showed …

Trauma Disrupts Parent-Child Fear Extinction in Youth With PTSD Symptoms

by GLOOM

MHD featured image for parent-child trauma, fear extinction, and PTSD symptoms.

A 97-dyad adolescent fMRI study found that trauma-exposed youth with high posttraumatic stress symptoms did not use parent-observed safety learning in the usual way: their arousal rose to a safety cue during vicarious extinction, F(1,159) = 4.81, p = 0.029, and parent-child physiological synchrony no longer predicted lower skin conductance during early safety learning.1 The …

OCD Clinical AI Reached AUROC 0.653 but Failed Site Generalization

by GLOOM

MHD featured image for OCD clinical AI and ENIGMA fMRI generalization.

A 2026 ENIGMA-OCD preprint tested a transformer model on resting-state fMRI from 1,706 participants and reached AUROC = 0.653 ± 0.039 for OCD classification.1 The more important result was the failure mode: held-out-site performance ranged from AUROC 0.427 to 0.819, which is exactly the gap clinical AI has to close before brain-scan diagnosis is credible. …