12122137

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0007634, umls-concept:C0025914, umls-concept:C0026809, umls-concept:C0028936, umls-concept:C0549255, umls-concept:C1154415, umls-concept:C1882911
pubmed:issue	Pt 2
pubmed:dateCreated	2002-7-17
pubmed:abstractText	How patterns of odour-evoked glomerular activity are transformed into patterns of mitral cell action potentials (APs) in the olfactory bulb is determined by the functional connectivity of the cell populations in the bulb. We have used paired whole-cell voltage recordings from olfactory bulb slices to compare the functional connectivity of mitral cells to the known anatomy of the mitral cell network. Both inhibitory and excitatory coupling were observed between pairs of mitral cells. Inhibitory coupling was seen as an increased frequency of small, asynchronous GABAergic IPSPs following APs in the presynaptic cell. Excitatory coupling was short in latency, beginning about 1.3 ms after the presynaptic AP and was mediated by both NMDA and AMPA receptors. Mitral cell pairs were coupled by excitation if and only if their apical dendrites terminated in the same glomerulus. The excitatory coupling between mitral cells resembles conventional fast synaptic transmission in its time course, amplitude and latency, despite the absence of evidence for anatomically defined synapses between mitral cells.
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pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/0266262
pubmed:citationSubset	IM
pubmed:chemical	http://linkedlifedata.com/resource/pubmed/chemical/Receptors, AMPA, http://linkedlifedata.com/resource/pubmed/chemical/Receptors, N-Methyl-D-Aspartate
pubmed:status	MEDLINE
pubmed:month	Jul
pubmed:issn	0022-3751
pubmed:author	pubmed-author:SakmannBertB, pubmed-author:UrbanNathaniel NNN
pubmed:issnType	Print
pubmed:day	15
pubmed:volume	542
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	355-67
pubmed:dateRevised	2009-11-18
pubmed:meshHeading	pubmed-meshheading:12122137-Action Potentials, pubmed-meshheading:12122137-Animals, pubmed-meshheading:12122137-Dendrites, pubmed-meshheading:12122137-Electric Stimulation, pubmed-meshheading:12122137-Electrophysiology, pubmed-meshheading:12122137-Evoked Potentials, pubmed-meshheading:12122137-Excitatory Postsynaptic Potentials, pubmed-meshheading:12122137-Mice, pubmed-meshheading:12122137-Neurons, pubmed-meshheading:12122137-Olfactory Bulb, pubmed-meshheading:12122137-Receptors, AMPA, pubmed-meshheading:12122137-Receptors, N-Methyl-D-Aspartate
pubmed:year	2002
pubmed:articleTitle	Reciprocal intraglomerular excitation and intra- and interglomerular lateral inhibition between mouse olfactory bulb mitral cells.
pubmed:affiliation	Abteilung Zellphysiologie, Max-Planck-Institut für medizinische Forschung, Heidelberg 69120, Germany. nurban@cmu.edu
pubmed:publicationType	Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't