Topic: main olfactory bulb

cAMP is a ubiquitous second messenger and plays a central role in the regulation of gene expression and synaptic transmission. While calcium imaging is a well-established technique with a variety of different chemical and genetically encoded sensors, cAMP sensors have been lacking until recently and hence cAMP signaling is not well studied in astrocytes so far. Flamindo2 from Odaka et al. (PLOS One 9:6, 2014) is a genetically encoded cAMP sensor, which fluorescence intensity decreases in response to increased cAMP levels. In this study we investigated noradrenergic cAMP signaling in astrocytes

Olfaction is a crucial sense for many species, influencing behavioral responses like mating and reproduction. A significant dopaminergic (DA) population is found in the mouse main olfactory bulb (OB), with inhibitory interneurons identified by tyrosine hydroxylase (TH) expression and divided into two major groups (i.e., small and large cells) according to their shape, generation time, and biophysical characteristics. Although it is known that salient stimuli activate midbrain DA neurons, it is unclear if OB DA cells are involved in processing ethologically relevant odorants, especially those a