Rostral ventrolateral medulla C1 neurons and cardiovascular regulation

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

1. The rostral ventrolateral medulla (RVLM) is essential for the normal control of arterial pressure. This region of the brainstem is heterogeneous, and contains spinally projecting neurons that contain phenylethanolamine-N-methyltransferase (C1 neurons) and non-C1 neurons. 2. The availability of a toxin, a dopamine-β-hydroxylase antibody conjugated to saporin, that can selectively destroy C1 neurons within the RVLM allows for the study of cardiovascular regulation in rats following depletion of the C1 neuronal population. 3. C1 neurons are not essential for the maintenance of resting blood pressure in anesthetized rats, but do contribute to many cardiovascular responses mediated through the RVLM. 4. The depressor response elicited by clonidine injected into the RVLM is dependent upon C1 neurons. 5. Studies in rats with selective toxin-induced destruction of RVLM C1 neurons demonstrate that C1 neurons contribute importantly to cardiovascular regulation.

Original languageEnglish (US)
Pages (from-to)739-749
Number of pages11
JournalCellular and Molecular Neurobiology
Volume23
Issue number4-5
DOIs
StatePublished - Oct 2003

Fingerprint

Neurons
Rats
Phenylethanolamine N-Methyltransferase
Blood pressure
Clonidine
Mixed Function Oxygenases
Brain Stem
Dopamine
Arterial Pressure
Maintenance
Availability
Blood Pressure
Antibodies
Population

Keywords

  • Blood pressure
  • Brainstem
  • Clonidine
  • Epinephrine
  • Immunotoxin

ASJC Scopus subject areas

  • Neuroscience(all)
  • Clinical Biochemistry
  • Cell Biology
  • Genetics

Cite this

Rostral ventrolateral medulla C1 neurons and cardiovascular regulation. / Madden, Christopher (Chris); Sved, Alan F.

In: Cellular and Molecular Neurobiology, Vol. 23, No. 4-5, 10.2003, p. 739-749.

Research output: Contribution to journalArticle

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