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Kv4 (A‐type) potassium currents in the mouse medial nucleus of the trapezoid body

2008· article· en· W2005637731 on OpenAlexaff
Jamie Johnston, Sarah J. Griffin, Claire Baker, Ian D. Forsythe

Bibliographic record

VenueEuropean Journal of Neuroscience · 2008
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicIon channel regulation and function
Canadian institutionsUniversity of Victoria
Fundersnot available
KeywordsCardiac transient outward potassium currentChemistryNucleusTrapezoid bodyBiophysicsTetraethylammoniumMembrane potentialElectrophysiologyNeurosciencePotassium channelPotassiumCurrent (fluid)Patch clampBiologyBiochemistryPhysics

Abstract

fetched live from OpenAlex

Principal neurones of the mouse medial nucleus of the trapezoid body (MNTB) possess multiple voltage-gated potassium currents, including a transient outward current (or A-current), which is characterized here. The A-current exhibited rapid voltage-dependent inactivation and was half inactivated at resting membrane potentials. Following a hyperpolarizing pre-pulse to remove inactivation, the peak transient current was 1.07 nA at -17 mV. The pharmacological characteristics of this A-current were consistent with Kv4 subunits in expression studies; the A-current was resistant to block by tetraethylammonium and dendrotoxin-I but sensitive to millimolar concentrations of 4-aminopyridine and 5 microM hanatoxin. Immunohistochemistry confirmed that Kv4.3 sub-units are present in the MNTB. In a single-compartment model of an MNTB neurone, the A-current served to accelerate the decay of the initial action potentials in a stimulus train and suggested that removal of A-current steady-state inactivation could raise firing threshold for non-calyceal synaptic inputs. This A-type current was not observed in the rat.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.819
Threshold uncertainty score0.141

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.030
GPT teacher head0.249
Teacher spread0.218 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations28
Published2008
Admission routes1
Has abstractyes

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