Expression of D2 dopamine receptor mRNA in the arterial chemoreceptor afferent pathway

Maria F. Czyzyk-Krzeska, Edward Lawson, David E. Millhorn

Research output: Contribution to journalArticle

Abstract

Dopamine is a major neurotransmitter in the arterial chemoreceptor pathway. In the present study we wished to determine if messenger RNAs for dopamine D1 and D2 receptor are expressed in carotid body (type I cells), in sensory neurons of the petrosal ganglion which innervate the carotid body and in sympathetic neurons of the superior cervical ganglion. We failed to detect D1 receptor mRNA in any of these tissues. However, we found that D2 receptor mRNA was expressed by dopaminergic carotid body type I cells. D2 receptor mRNA was also found in petrosal ganglion neurons that innervated the carotid sinus and carotid body. In addition, a large number of sympathetic postganglionic neurons in the superior cervical ganglion expressed D2 receptor mRNA.

Original languageEnglish (US)
Pages (from-to)31-39
Number of pages9
JournalJournal of the Autonomic Nervous System
Volume41
Issue number1-2
DOIs
StatePublished - 1992
Externally publishedYes

Fingerprint

Afferent Pathways
Dopamine D2 Receptors
Carotid Body
Messenger RNA
Somatotypes
Superior Cervical Ganglion
Neurons
Ganglia
Dopamine D1 Receptors
Carotid Sinus
Sensory Receptor Cells
Neurotransmitter Agents
Dopamine

Keywords

  • Carotid body
  • Dopamine
  • Dopamine receptor
  • mRNA
  • Petrosal ganglion
  • Superior cervical ganglion

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Neuroscience(all)

Cite this

Expression of D2 dopamine receptor mRNA in the arterial chemoreceptor afferent pathway. / Czyzyk-Krzeska, Maria F.; Lawson, Edward; Millhorn, David E.

In: Journal of the Autonomic Nervous System, Vol. 41, No. 1-2, 1992, p. 31-39.

Research output: Contribution to journalArticle

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