rdf:type |
|
lifeskim:mentions |
umls-concept:C0027882,
umls-concept:C0034693,
umls-concept:C0034721,
umls-concept:C0051318,
umls-concept:C0061465,
umls-concept:C0079883,
umls-concept:C0175518,
umls-concept:C0205263,
umls-concept:C0234421,
umls-concept:C0242184,
umls-concept:C0596588,
umls-concept:C1171362,
umls-concept:C1522485,
umls-concept:C1708632
|
pubmed:issue |
2
|
pubmed:dateCreated |
1999-7-2
|
pubmed:abstractText |
Glutamatergic transmission within the nucleus tractus solitarii (nTS) is critical to full expression of hypoxia-induced cardiorespiratory responses in the rat. To further examine the role of N-methyl-D-aspartate (NMDA) and alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionate (AMPA) glutamate receptors in these responses, double-labeling studies of immunoreactivity for c-Fos protein and either NMDA (NR1) or AMPA (mGluR2/3) receptor expression were conducted in normoxic rats and in hypoxic rats receiving vehicle, MK801, or NBQX. Hypoxia markedly increased c-Fos immunoreactivity within nTS neurons which in the vast majority co-labeled for NMDA. Furthermore, MK801 markedly attenuated such responses. In contrast, co-localization of AMPA and c-Fos occurred in only a small proportion of neurons, and NBQX failed to modify hypoxia-induced c-Fos enhancements. These data suggest a predominant role for NMDA but not for AMPA glutamate receptors in nTS mediated components of the hypoxic response.
|
pubmed:grant |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0304-3940
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
5
|
pubmed:volume |
262
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
93-6
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:10203239-Air,
pubmed-meshheading:10203239-Amino Acid Sequence,
pubmed-meshheading:10203239-Animals,
pubmed-meshheading:10203239-Cell Hypoxia,
pubmed-meshheading:10203239-Consciousness,
pubmed-meshheading:10203239-Dizocilpine Maleate,
pubmed-meshheading:10203239-Gene Expression Regulation,
pubmed-meshheading:10203239-Male,
pubmed-meshheading:10203239-Molecular Sequence Data,
pubmed-meshheading:10203239-Neurons,
pubmed-meshheading:10203239-Proto-Oncogene Proteins c-fos,
pubmed-meshheading:10203239-Quinoxalines,
pubmed-meshheading:10203239-Rats,
pubmed-meshheading:10203239-Rats, Sprague-Dawley,
pubmed-meshheading:10203239-Receptors, AMPA,
pubmed-meshheading:10203239-Receptors, N-Methyl-D-Aspartate,
pubmed-meshheading:10203239-Solitary Nucleus
|
pubmed:year |
1999
|
pubmed:articleTitle |
Hypoxia induces c-Fos protein expression in NMDA but not AMPA glutamate receptor labeled neurons within the nucleus tractus solitarii of the conscious rat.
|
pubmed:affiliation |
Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA 70112, USA. dgozal@tmcpop.tmc.tulane.edu
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|