Olfaction: diverse species, conserved principles.

TL;DR: While CVS rats exhibited several symptoms consistent with chronic stress exposure and depressive-like states, their odorant responses recorded at the olfactory mucosa level by electro-olfactogram were decreased, and increased apoptosis markers in the o aroma mucosa using Western Blot were observed.

TL;DR: There are significant interspecies differences in CHC expression for both sexes, and that females with chemically ablated antennae reduce aggressive behavior towards heterospecific males, which supports the prediction that cuticular semiochemicals can play a key role in reproductive isolation between closely related insect species.

TL;DR: In this paper , an electrophysiological technique extensively used in vertebrates (the electro-olfactogram) was adapted to record from the osphradium in the Pacific oyster, Magallana gigas .

TL;DR: Tadpoles exhibited consistent and reliable responses to L-alanine and Spirulina extract, which indicate that tadpole EOG is a viable electrophysiology technique that can be used in future research to study olfactory physiology and impairment in tadpoles.

TL;DR: This work has cloned and characterized 18 different members of an extremely large multigene family that encodes seven transmembrane domain proteins whose expression is restricted to the olfactory epithelium and is likely to encode a diverse family of odorant receptors.

TL;DR: Using a combination of calcium imaging and single-cell RT-PCR to identify odorant receptors (ORs) for odorants with related structures but varied odors, it is found that one OR recognizes multiple odorants and that one odorant is recognized by multiple ORs, but that different odorants are recognized by different combinations of ORs.

TL;DR: This first comprehensive analysis of the genome sequence of the Brown Norway (BN) rat strain is reported, which is the third complete mammalian genome to be deciphered, and three-way comparisons with the human and mouse genomes resolve details of mammalian evolution.

TL;DR: A genetic approach is developed to visualize axons from olfactory sensory neurons expressing a given odorant receptor, as they project to the Olfactory bulb, which provides direct support for a model in which a topographic map of receptor activation encodes odor quality in the ofactory bulb.