Modulation of High‐Voltage–Activated Calcium Channels in Dentate Granule Cells by Topiramate
Why this work is in the frame
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Bibliographic record
Abstract
PURPOSE: In this study, we assessed the effects of topiramate (TPM) on high-voltage-activated calcium channel (HVACC) currents in vitro. METHODS: HVACC currents were recorded from rat dentate gyrus granule cells by using whole-cell patch-clamp techniques. The biophysical properties of HVACCs were used to separate voltage-activated Ca2+ currents into different subtypes. Three concentrations of TPM were tested: 1, 10, and 50 microM. RESULTS: TPM inhibited L-type currents and was more effective at 10 microM than at 50 microM, suggesting that there may be an optimal concentration at which TPM decreases L-type currents. Non-L-type currents were transiently increased by TPM at a high concentration (50 microM). CONCLUSIONS: Because the location of L-type calcium channels on soma and proximal dendrites gives these channels a crucial role in controlling dendritic excitability and in providing calcium for intracellular effectors, the decrease in the L-type HVA Ca2+ currents may be an important anticonvulsant mechanism of TPM.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it