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The existence of thresholds for carcinogenic compounds is an important topic in toxicology and regulatory science. Traditionally, genotoxic carcinogens are thought to exhibit no thresholds. However, cellular defense mechanisms like DNA repair and apoptosis can neutralize low levels of genotoxic stress implying different Points of Departure (PoDs) for different cellular endpoints. Moreover, since cellular PoDs are regulated by...
Regional Crosstalk Between the Amygdala, Hippocampus, and Prefrontal Cortex Following Na+,K+-ATPase Inhibition by OuabainNARA Subscribed
The Na⁺,K⁺-ATPase plays a fundamental role in memory formation by regulating neuronal excitability and NMDA receptor-dependent synaptic plasticity. While this enzyme’s dysfunction is broadly linked to cognitive disorders, its specific contribution to fear memory consolidation, particularly within the key brain structure of the basolateral amygdala (BLA), remains undefined. We investigate whether Na + ,K + -ATPase inhibition di...
Pain responses following resistance exercise with and without blood flow restriction in individuals with multiple sclerosisNARA Subscribed
Purpose Pain is a common symptom among individuals living with multiple sclerosis (MS). Exercise-induced hypoalgesia (EIH), a reduction in pain sensitivity following resistance exercise, typically requires high loads. Blood flow restriction (BFR) training may offer a lower-load alternative to elicit EIH. This investigation aimed to assess EIH responses following resistance exercise with and without BFR in individuals with MS....
Local and Landscape‐Level Environmental Conditions Drive Habitat Selection Across Terrestrial Mammal SpeciesNARA Subscribed
Aim Animal movements are a fundamental process affecting communities and ecosystems. Quantifying habitat selection across species and habitats is key for understanding how animals respond to environmental change. Currently, we lack comparative studies that examine how habitat selection varies across species traits and landscapes. We aim to quantify global patterns of habitat selection to help understand the fundamental drivers...
To advance understanding of meiofauna, key components of marine benthic ecosystems, an international team conducted a morphology-based taxonomic survey and workshop around São Miguel, the largest Azorean island, in 2019. The survey yielded critical baseline data on meiofaunal diversity and, despite taxonomic challenges that limited identification of certain taxa, laid a solid foundation for further research. To expand these fi...
We explored the reliability of sex determination based on morphometric measurements in African White-backed Vultures ( Gyps africanus ), a species that has been known to lack sexual dimorphism. Examining 61 adults, we measured 13 morphologic traits and determined the sex using DNA from blood. Applying Linear Discriminant Analysis, we identified a combination of head width, body mass and bill depth to be a robust indicator for...