Evidence map›Paper›PMID 17035366›Full record

ArticleJournal of neurophysiology2007

Complementary postsynaptic activity patterns elicited in olfactory bulb by stimulation of mitral/tufted and centrifugal fiber inputs to granule cells.

Nora Laaris, Adam Puche, Matthew Ennis

Abstract read
In one paragraph

Article in Journal of neurophysiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.3field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. POU6f1 Mediates Neuropeptide-Dependent Plasticity in the Adult Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Layer-Specific fMRI Responses to Excitatory and Inhibitory Neuronal Activities in the Olfactory Bulb.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  13. Article
  14. Review
  15. Long-term plasticity in the regulation of olfactory bulb activity by centrifugal fibers from piriform cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  16. Article
  17. Review
  18. NMDA receptor-dependent synaptic activation of TRPC channels in olfactory bulb granule cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
  19. Respiration drives network activity and modulates synaptic and circuit processing of lateral inhibition in the olfactory bulb.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Nora LaarisDepartment of Pharmacology and Experimental Therapeutics, University of Maryland, Baltimore, MD, USA.
Adam Puche
Matthew Ennis
University of Maryland, Baltimore · US

Funding

Taste cell phenotypes--structure &functionP01DC000347 · NIDCD · UNIVERSITY OF MARYLAND BALTIMORE · PI SHIPLEY, MICHAEL THOMAS · 1989 to 2003
$4.8M
Metabotropic Glutmate Receptors in the Olfactory bulbR01DC003195 · NIDCD · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI ENNIS, MATTHEW · 1997 to 2011
$3.1M
DYNAMICAL MODELING OF AUDITORY NEURAL COMPUTATIONF32DC000347 · NIDCD · UNIVERSITY OF PENNSYLVANIA · PI LARGE, EDWARD W. · 1998 to 1998
–
NIDCD NIH HHS DC 00347NIDCD NIH HHS DC 03195NIDCD NIH HHS F32 DC000347NIDCD NIH HHS P01 DC000347NIDCD NIH HHS R01 DC003195
6 · The paper itself

Abstract

Main olfactory bulb (MOB) granule cells receive spatially segregated glutamatergic synaptic inputs from the dendrites of mitral/tufted cells as well as from the axons of centrifugal fibers (CFFs) originating in olfactory cortical areas. Dendrodendritic synapses from mitral/tufted cells occur on granule cell distal dendrites in the external plexiform layer (EPL), whereas CFFs preferentially target the somata/proximal dendrites of granule cells in the granule cell layer (GCL). In the present study, tract tracing, and recordings of field potentials and voltage-sensitive dye optical signals were used to map activity patterns elicited by activation of these two inputs to granule cells in mouse olfactory bulb slices. Stimulation of the lateral olfactory tract (LOT) produced a negative field potential in the EPL and a positivity in the GCL. CFF stimulation produced field potentials of opposite polarity in the EPL and GCL to those elicited by LOT. LOT-evoked optical signals appeared in the EPL and spread subsequently to deeper layers, whereas CFF-evoked responses appeared in the GCL and then spread superficially. Evoked responses were reduced by N-methyl-d-aspartate (NMDA) receptor antagonists and completely suppressed by AMPA receptor antagonists. Reduction of extracellular Mg(2+) enhanced the strength and spatiotemporal extent of the evoked responses. These and additional findings indicate that LOT- and CFF-evoked field potentials and optical signals reflect postsynaptic activity in granule cells, with moderate NMDA and dominant AMPA receptor components. Taken together, these results demonstrate that LOT and CFF stimulation in MOB slices selectively activate glutamatergic inputs to the distal dendrites versus somata/proximal dendrites of granule cells.

Indexed as

Action PotentialsAnimalsCarbocyaninesDendritesElectric StimulationExcitatory Amino Acid AntagonistsGlutamic AcidInterneuronsMagnesiumMiceMice, Inbred C57BLNeural PathwaysOlfactory BulbOlfactory PathwaysOrgan Culture TechniquesPresynaptic Terminals3,3'-dihexadecylindocarbocyanine4-(4-dihexadecylaminostyryl)-N-methylpyridiumCarbocyaninesExcitatory Amino Acid AntagonistsGlutamic AcidMagnesiumPyridinium CompoundsReceptors, Glutamate

Identifiers

PMID17035366
PMCPMC2786987
OpenAlexW1980757227

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.