The Ventral Hippocampus Controls Stress-Provoked Impulsive Aggression through the Ventromedial Hypothalamus in Post-Weaning Social Isolation Mice
| Autor: | Chih-Hua Chang, Po-Wu Gean |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Cell Reports, Vol 28, Iss 5, Pp 1195-1205.e3 (2019) |
| Druh dokumentu: | article |
| ISSN: | 2211-1247 02322404 |
| DOI: | 10.1016/j.celrep.2019.07.005 |
| Popis: | Summary: Impulsively aggressive individuals may suddenly attack others when under stress, but the neural circuitry underlying stress-provoked aggression is poorly understood. Here, we report that acute stress activates ventral hippocampus (vHip) neurons to induce attack behavior in post-weaning socially isolated mice. Chemogenetic inhibition of vHip neural activity blunts stress-provoked attack behavior, whereas chemogenetic activation promotes it. The activation of cell bodies in vHip neurons projecting into the ventromedial hypothalamus (VMH) induces attack behavior, suggesting that the vHip-VMH projection contributes to impulsive aggression. Furthermore, optogenetic inhibition of vHip glutamatergic neurons blocks stress-provoked attacks, whereas optogenetic activation of vHip glutamatergic neurons drives attack behavior. These results show direct evidence that vHip-VMH neural circuitry modulates attack behavior in socially isolated mice. : Individuals with a tendency toward impulsive aggression may suddenly attack others when under stress. The neural circuitry underlying stress-provoked aggression is largely unknown. Chang and Gean demonstrate that ventral hippocampal (vHip) outputs to the ventromedial hypothalamus (VMH) mediate stress-provoked aggression in post-weaning socially isolated mice. Keywords: ventral hippocampus, ventromedial hypothalamus, impulsive aggression, acute stress, chemogenetic, optogenetic approaches |
| Databáze: | Directory of Open Access Journals |
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