title: Interaction of arachidonic acid with electrogenic properties of mouse chemosensory neurons.
abstract: Chemosensory neurons respond to stimulation induced by gasses, volatile and non-volatile compounds. Neuronal excitation mediated via second messengers involves typically: cGMP, cAMP, or IP⊂3. Transduction pathways based on cyclic nucleotide have three-phosphate nucleotide as substrate, while IP⊂3 has a membrane lipid substrate. These derivatives of cholesterol are signaling molecules with modulator-like effects on many proteins, including membrane ion channels. In the present study, spontaneous and induced activities were recorded in a whole-cell configuration, in current and voltage clamp modes, in isolated chemosensory neurons obtained from the mouse. Chemosensory neurons responded with an inward depolarizing current to application of arachidonic acid, which suggests a role for it in putative mechanisms of signal transduction.
authors.affiliation: Department of Neuroscience and Imaging, University Chieti-Pescara G. d'Annunzio, Via dei Vestini 31, 66100 Chieti, Italy. a.mazzatenta@unich.it
authors.forename: Andrea
authors.initials: A
authors.lastname: Mazzatenta
authors.forename: C
authors.initials: C
authors.lastname: Di Giulio
authors.forename: M
authors.initials: M
authors.lastname: Pokorski
mesh_terms: D000818:Animals; D016718:Arachidonic Acid / Q000494:pharmacology*; D002118:Calcium / Q000378:metabolism; D002628:Chemoreceptor Cells / Q000187:drug effects* / Q000502:physiology; D051379:Mice; D008810:Mice, Inbred C57BL; D011189:Potassium Chloride / Q000494:pharmacology
chemical_list: D016718:Arachidonic Acid; D011189:Potassium Chloride; D002118:Calcium