Ion channels in interstitial cells of Cajal as targets for neurotransmitter action
Bibliographic record
Abstract
Interstitial cells of Cajal (ICC) are involved in generation of gut pacemaker activity, neurotransmission and stretch sensation. Pacemaker ICC exhibit spontaneous cyclic calcium oscillations that are in synchrony with its pacemaker activity. The spontaneous rhythmic inward currents in ICC that underlie gut pacemaker activity are linked to this calcium oscillation. It is probable that more than one type of channel contributes to the inward current with a high conductance chloride channel and a nonselective cation channel being the main candidates. The activation of these channels is linked to intracellular calcium cycling mechanism and involves inositol 1,4,5-trisphosphate (IP3)-mediated calcium release from the sarcoplasmic reticulum, and calcium uptake into mitochondria. This ion channel activity is modulated by signalling through neurotransmitter receptors, including the NK1 receptor. This finding and the presence of other neurotransmitter receptor mRNA transcripts indicates that ion channels in ICC are targets for neurotransmitter action. The ether-a-go-go-related (ERG) K channel is probably the most important K channel contributing to the resting membrane potential and excitability of the ICC. Many ion channels in ICC are regulated by second messenger systems which makes them highly susceptible to neurotransmitter modulation.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.003 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".