MentalHealthDaily

Chlorpyrifos Exposure Linked to Up to 174% Higher Parkinson’s Risk

by GLOOM

MHD featured image for chlorpyrifos exposure, Parkinson's risk, dopaminergic neurons, and autophagy dysfunction.

A human, mouse, and zebrafish study linked long-term chlorpyrifos exposure to Parkinson’s disease risk, with the strongest exposure-duration estimate reaching OR 2.74 for workplace proximity across the 1974-to-index-year window.1 The paper is stronger than a single epidemiology result because animal experiments pointed to dopaminergic neuron loss, microglial activation, pathological α-synuclein, and autophagy dysfunction. Research Highlights …

TMEM175 Proton Channel Finding Clarifies Parkinson’s Lysosome Risk

by GLOOM

MHD featured image for TMEM175 proton conductance and Parkinson's disease lysosome risk.

A 2026 PNAS study found that TMEM175 behaves as a pH-sensitive lysosomal channel relevant to Parkinson’s risk biology.1 Acidifying the luminal side from pH 7.4 to 4.7 activated proton conductance, shifted reversal potential, and tied H57 to H+ and K+ flux. Research Highlights Acidification activated TMEM175: lowering luminal-side pH from 7.4 to 4.7 increased inward …

NDST3 Suppression Restores Lysosome Acidity in Alzheimer’s Mouse Models

by GLOOM

MHD featured image for NDST3 suppression and lysosomal acidification in Alzheimer's disease models.

A 2026 mechanistic Alzheimer’s study found that suppressing NDST3 shifted lysosomal pH in APP695Swe neuronal cells from 5.6 back below 5.0, then reduced amyloid-β, MAPT/tau pathology, neuronal injury, and memory deficits in 3xTg-AD mice.1 Research Highlights Lysosome pH moved back down: APP695Swe-overexpressing HT22 cells had lysosomal pH around 5.6, while NDST3 knockdown re-acidified lysosomes to …

Mitophagy & Depression: Mitochondrial Autophagy as an Antidepressant Target?

by GLOOM

Depression is a pervasive mental health issue with complex origins and often inadequate treatment options. Recent studies have suggested that mitophagy, the process of selective mitochondrial autophagy, plays a crucial role in the onset and progression of depression, offering new insights into its pathogenesis and potential treatments. Highlights: Major Depressive Disorder (MDD) affects millions globally, …