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Hydrogen Sulfide and the Regulation of Neuronal Activities

2004· book-chapter· en· W107840986 on OpenAlexaff
Hideo Kimura

Bibliographic record

VenueHumana Press eBooks · 2004
Typebook-chapter
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicSulfur Compounds in Biology
Canadian institutionsUniversity of Saskatchewan
Fundersnot available
KeywordsCystathionine beta synthaseLong-term potentiationHippocampal formationHydrogen sulfideEndogenyNeuroscienceChemistryHydrogen sulphideEnzymeBiochemistryCell biologyBiologyReceptorCysteine

Abstract

fetched live from OpenAlex

Hydrogen sulfide (H2S) is a well-known toxic gas, and most studies about H2S have been devoted to its toxic effects. Recently, however, three groups discovered that the brain contains relatively high concentrations of endogenous H2S. This discovery accelerated the identification of an H2S-producing enzyme, cystathionine β-synthase (CBS), in the brain. In addition to the well-known regulators for CBS, S-adenosyl-L-methionine and pyridoxal-5′-phosphate, it was recently found that Ca2+/calmodulin-mediated pathways are involved in the regulation of CBS activity. H2S is produced in response to neuronal excitation and alters hippocampal long-term potentiation, a synaptic model for memory. The production of H2S in the brain is also regulated by testosterone. We describe herein recent progress in the study of H2S as a novel gasotransmitter in the brain.

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: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.814
Threshold uncertainty score0.738

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 studies0.0000.001
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 head0.028
GPT teacher head0.238
Teacher spread0.210 · 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 designTheoretical or conceptual
Domainnot available
GenreOther

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

Citations3
Published2004
Admission routes1
Has abstractyes

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