Loss miRNA maturation in proopiomelanocortin (POMC) neurons causes metabolic dysregulation and favors the differentiation of Pomc progenitors into neuropeptide Y neurons, a developmental process that appears to specifically involve miR-103/107.
Experiments in zebrafish reveal a new role for a critical hypothalamic transcription factor, orthopedia, in controlling developmental neuropeptide balance in a discrete oxytocin-producing neuronal circuit whose disrupted development affects social behavior.
Mouse in vivo and in vitro analysis and human genetic screening highlight the role of anti-Müllerian hormone (AMH) signaling in GnRH neuronal development and function, and identify mutations in AMH and AMHR2 in CHH patients.
The connectivity structure of a nociceptive circuit is precisely maintained over Drosophila larval development through cell type-specific increases in synaptic contacts as measured from electron microscopy reconstructions, while individual neurons grow five-fold in size and number of synapses.
The diversity of electrophysiological phenotypes of neurons in a functional network increases over development, but can be modulated, and even reduced by sensory experience; allowing them to adapt to a changing and growing brain.
Glycolysis is locally enhanced and redirected in zebrafish to generate lactate, which functions as a signaling molecule to fully activate Fgf target genes required for proper sensory and neural development.