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A dedicated hypothalamic oxytocin circuit controls aversive social learning

To survive in a complex social group, one needs to know who to approach and, more importantly, who to avoid. In mice, a single defeat causes the losing mouse to stay away from the winner for weeks1. Here through a series of functional manipulation and recording experiments, we identify oxytocin neurons in the retrochiasmatic supraoptic nucleus (SOROXT) and oxytocin-receptor-expressing cells in the anterior subdivision of the ventromedial hypothalamus, ventrolateral part (aVMHvlOXTR) as a key circuit motif for defeat-induced social avoidance. Before defeat, aVMHvlOXTR cells minimally respond to aggressor cues. During defeat, aVMHvlOXTR cells are highly activated and, with the help of an exclusive oxytocin supply from the SOR, potentiate their responses to aggressor cues. After defeat, strong aggressor-induced aVMHvlOXTR cell activation drives the animal to avoid the aggressor and minimizes future defeat. Our study uncovers a neural process that supports rapid social learning caused by defeat and highlights the importance of the brain oxytocin system in social plasticity. In mice, the neural mechanisms underlying aversive social learning, specifically avoidance and fear after defeat, involve oxytocin signalling in the anterior subdivision of the ventromedial hypothalamus, ventrolateral part.

Syria , Syrian , Development-team , California-institute-of-technology , Brain-funct , Early-childhood-education , Brain-res , Cell-rep , Tissue-res , Multimodal-analysis , Cell-types

Droplet microarrays for high throughput analysis of biochemical samples and single cells

Droplet microarrays for high throughput analysis of biochemical samples and single cells
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Zurich , Züsz , Switzerland , Angewandte-chemie , Bioanalytics-group , Angewandte-chemie-international-edition , A-lab , Copyright-bioanalytics-group , Advances-in-microfluidic-technology-for-bioanalysis , Recent-advances , Microfluidic-technology , Droplet-microfluidics

NewCa.com: Canadian Heritage Funds Projects To Strengthen

- Projects funded through the Digital Citizen Contribution Program will strengthen citizens' critical thinking about disinformation and counter online harms -


United-kingdom , Caledon , Ontario , Canada , Waterloo , Russia , Toronto , Moncton , New-brunswick , France , Ukraine , Canadians