Astrocytic Ephrin-B1 Regulates Oligodendrocyte Development and Myelination.

Astrocytes have been implicated in oligodendrocyte development and myelination, however, the mechanisms by which astrocytes regulate oligodendrocytes remain unclear. Our findings suggest a new mechanism that regulates astrocyte-mediated oligodendrocyte development through ephrin-B1 signaling in astrocytes. Using a mouse model, we examined the role of astrocytic ephrin-B1 signaling in oligodendrocyte development by deleting ephrin-B1 specifically in astrocytes during the postnatal days (P)14-P28 period and used mRNA analysis, immunohistochemistry, and mouse behaviors to study its effects on oligodendrocytes and myelination.

The Mediating Role of Problematic Alcohol Consumption on the Association Between Pandemic-Related Strains and Domestic Violence Across Six Countries.

Research has documented that domestic violence increased worldwide during the COVID-19 pandemic. Studies have also suggested that alcohol use, which also increased during COVID-19, is a risk factor for domestic violence victimization. However, research has yet to examine whether alcohol consumption mediated the relationship between pandemic-related stressful events and domestic violence.

Neural activity ramps in frontal cortex signal extended motivation during learning.

Learning requires the ability to link actions to outcomes. How motivation facilitates learning is not well understood. We designed a behavioral task in which mice self-initiate trials to learn cue-reward contingencies and found that the anterior cingulate region of the prefrontal cortex (ACC) contains motivation-related signals to maximize rewards.

Effect of Arabinogalactans on Induction of White-Opaque Somatic Embryos of Avocado ( Mill.) cv. Duke-7.

The development of somatic embryogenesis in avocado ( Mill.) has been hampered by different chronic problems. One such problem is the low level of induction of white-opaque somatic embryos (WOSEs) during the process of obtaining full avocado plants.

Neural activity ramps in frontal cortex signal extended motivation during learning.

Learning requires the ability to link actions to outcomes. How motivation facilitates learning is not well understood. We designed a behavioral task in which mice self-initiate trials to learn cue-reward contingencies and found that the anterior cingulate region of the prefrontal cortex (ACC) contains motivation-related signals to maximize rewards.