Melanin-concentrating hormone inhibits PVN oxytocin neurons through a barium-sensitive inwardly rectifying potassium channels and MCH-neuron ablation alters pup-directed aggression
Xiong, T.; Saitow, F.; Inutsuka, A.; Onaka, T.; Yamada, K.; Orikasa, C.
Show abstract
Interactions between melanin-concentrating hormone (MCH) neurons and oxytocin neurons are crucial for parental care. Whole-cell patch-clamp recordings demonstrated that MCH inhibits paraventricular hypothalamic nucleus (PVN)-oxytocin neurons through activation of barium-sensitive inwardly rectifying potassium channels, potentially G-protein coupled inwardly rectifying potassium channels, and pup-directed aggression was positively related to loss of MCH neurons. Our findings offer a glimpse into the neural mechanisms underlying the evolutionary regulation of offspring caregiving and abuse in males.
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