eLife assessment
This study addresses the effects of estrogen on the kisspeptin1 subset of neurons in the arcuate nucleus of the hypothalamus of female mice after ovaries were surgically removed. The authors repeat some of their prior work and provide new and interesting findings about the effects of estrogen on currents mediated by calcium and potassium channels, suggest a neurotransmitter "switch", and suggest Trpc5 regulates Kisspeptin 1 neuron excitability. While useful in its significance, there are concerns that the evidence for some conclusions is incomplete. This study will be of interest to endocrinologists and reproductive biologists.