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Metabotropic glutamate receptor expression in olfactory receptor neurons from the channel catfish,Ictalurus punctatus

✍ Scribed by Medler, Kathryn F. ;Tran, Hang N. ;Parker, James M. ;Caprio, John ;Bruch, Richard C.

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 251 KB
Volume: 35
Category: Article
ISSN: 0022-3034
DOI: 10.1002/(sici)1097-4695(199804)35:1<94::aid-neu8>3.0.co;2-6

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✦ Synopsis

Metabotropic glutamate receptors

nificantly reduced olfactory receptor responses to L- (mGluRs) were identified in olfactory receptor neuglutamate. S-4CPG and MCCG reduced the glutarons of the channel catfish, Ictalurus punctatus, by mate response to 54% and 56% of control, respecpolymerase chain reaction. DNA sequence analysis tively, which was significantly greater than their effect confirmed the presence of two subtypes, mGluR1 and on a neutral amino acid odorant, methionine. These mGluR3, that were coexpressed with each other and significant reductions of odorant response by the anwith the putative odorant receptors within single oltagonists, taken with the expression of these receptors factory receptor neurons. Immunocytochemical data throughout the dendritic and ciliated portions of some showed that both mGluR subtypes were expressed in olfactory receptor neurons, suggest that these mGluRs the apical dendrites and some cilia of olfactory neumay be involved in olfactory reception and signal rons. Pharmacological analysis showed that antagotransduction. ᭧ 1998

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