AJP - Regu Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Am J Physiol Regul Integr Comp Physiol 271: R483-R489, 1996;
0363-6119/96 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Leung, C. G.
Right arrow Articles by Mason, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Leung, C. G.
Right arrow Articles by Mason, P.

AJP - Regulatory, Integrative and Comparative Physiology, Vol 271, Issue 2 483-R489, Copyright © 1996 by American Physiological Society

ARTICLES

Spectral analysis of arterial blood pressure and raphe magnus neuronal activity in anesthetized rats

C. G. Leung and P. Mason
Committee on Neurobiology, University of Chicago, Illinois 60637, USA.

Recent evidence suggests that nociceptive modulatory cells in the nucleus raphe magnus (RM) and adjacent nucleus reticularis magnocellularis (NRMC) may participate in the modulation of autonomic processing. Therefore, spectral analyses were used to determine component frequencies common to both arterial blood pressure and the activity of RM/NRMC neurons in rats lightly anesthetized with isoflurane. These analyses detected powerful, extremely low frequency (period length: 6.4-18.5 min) oscillations in arterial blood pressure and in the activity of two classes of RM/NRMC neurons, ON and OFF cells. All ON cells discharged during periods of low blood pressure, whereas all OFF cells discharged during periods of high blood pressure. In contrast, the discharge of NEUTRAL and REGULAR cells did not have a consistent relationship to blood pressure. The role of these cells in nociceptive modulation is also unclear. The results presented indicate that ON and OFF cells may participate in the modulation of both autonomic and nociceptive processing.


This article has been cited by other articles:


Home page
 J. Neurophysiol.Home page
P. Mason, K. Gao, and J. R. Genzen
Serotonergic Raphe Magnus Cell Discharge Reflects Ongoing Autonomic and Respiratory Activities
J Neurophysiol, October 1, 2007; 98(4): 1919 - 1927.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
C. G. Leung and P. Mason
Physiological Properties of Raphe Magnus Neurons During Sleep and Waking
J Neurophysiol, February 1, 1999; 81(2): 584 - 595.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
C. G. Leung and P. Mason
Physiological Survey of Medullary Raphe and Magnocellular Reticular Neurons in the Anesthetized Rat
J Neurophysiol, October 1, 1998; 80(4): 1630 - 1646.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online