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Despite extensive research on the western Pacific crown-of-thorns starfish (CoTS; Acanthaster cf. solaris ), especially from Australia’s Great Barrier Reef (GBR), there are persistent knowledge gaps that constrain understanding and management. Given renewed population irruptions of CoTS on the GBR, alongside escalating climate impacts and direct anthropogenic pressures, a quantitative assessment of knowledge gaps was undertake...
Chemical residues in declining commercial honey bee coloniesNARA Subscribed
Under global climate change, co-occurrence of ocean acidification (OA) and warming poses a substantial threat to marine ecosystems. The present study focused on the Strait of Georgia within the Northeast Pacific region, where conditions of aragonite undersaturation exist year-round across the majority of the water column, with further intensification expected under OA. These conditions coincide with persistent rises in mean se...
Interpretable deep learning reveals spatiotemporal MRI features of brain aging that align with neurodegenerationNARA Subscribed
Cortical thinning and atrophy are hallmarks of brain aging that have been characterized using magnetic resonance imaging (MRI). Brain aging involves many neuroanatomic features whose effects on brain structure remain unexplored. To address this challenge, we trained interpretable deep neural networks (DNNs) to estimate brain age (BA) from T 1 -weighted ( T 1 w) MRI. By identifying MRI features unapparent to humans, DNNs can fi...
Cerebellar Time and Relative Time: A Comparator-Based Dynamical Timing Model and its Relevance to Psychopathology and TherapiesNARA Subscribed
Time perception is fundamental to adaptive behavior, providing the scaffold for prediction, coordination, and learning. The cerebellum has long been recognized as a core hub for interval timing, yet its role extends beyond motor control to perceptual chronometry, reinforcement learning, and affective regulation. Here we introduce a novel framework, a Comparator-Based Dynamical Timing (CDT) model which describes distortions of...
Small Molecules to Elevate Rab7-GTPase Activity and Lower Cholesterol Accumulation in Niemann-Pick Type C DiseaseNARA Subscribed
Purpose Niemann-Pick type C (NPC) disease caused by mutations in cholesterol transporters NPC1 or NPC2 is characterized by cholesterol accumulation in late endosomes/lysosomes (LE/Lys). The activation of alternative cholesterol export routes that can bypass NPC1/2 deficiency could provide therapeutic opportunities. We previously demonstrated that gene depletion of the Rab7-GTPase activating protein (GAP) TBC1D15, which hydroly...
Alzheimer’s disease (AD) disproportionately affects women and carriers of the apolipoprotein E ε4 allele (APOE4), yet little is known about how sex and APOE interact to influence white matter (WM) integrity during disease progression. We integrated diffusion MRI and matched blood transcriptomic data to investigate these interactions and their underlying biological mechanisms. WM microstructure was quantified using diffusion te...