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Ann Otol Rhinol Laryngol ; 110(3): 277-82, 2001 Mar.
Article in English | MEDLINE | ID: mdl-11269775

ABSTRACT

To further characterize the pattern of expression of the ligand-gated purinergic P2X receptors in the peripheral vestibular system, we conducted reverse transcription-polymerase chain reaction amplification of P2X1 and P2X2 messenger RNA extracted from adult rat vestibular ganglia (Scarpa's ganglia) and vestibular end organs. Transcripts encoding P2X1 were found in both Scarpa's ganglia and the end organs, but transcripts encoding P2X2 were found only in the vestibular end organs. These results support previous electrophysiological data, and they provide a more complete understanding of the specific role of purinergic (adenosine-5'-triphosphate) transmission in the vestibular periphery.


Subject(s)
Receptors, Purinergic/biosynthesis , Vestibule, Labyrinth , Animals , Polymerase Chain Reaction , RNA, Messenger/analysis , Rats , Rats, Sprague-Dawley , Receptors, Purinergic/genetics
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