REDUCTION OF BLOOD PRESSURE VARIABILITY BY AMLODIPINE IN BARORECEPTOR DENERVATED RATS
Why this work is in the frame
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Bibliographic record
Abstract
To determine the effect of the calcium blocker amlodipine on the variability of mean arterial pressure (MAP), amlodipine besylate was acutely administered to sino-aortic baroreceptor-denervated (SAD) rats (0, 1, 3, 10 mg/kg s.c.), and chronically administered to SAD and sham-denervated rats (0, 50, 150, 500, and 1,500 mg x kg(-1) feed, 4 days per dose). Acute amlodipine administration caused significant dose-dependent reductions of the mean MAP level and short-term MAP variability at the 3 and 10 mg/kg dose levels, respectively. Chronic administration produced dose-dependent reductions in short-term MAP variability, becoming significant at the 150 and 500 mg x kg(-1) feed dose level in SAD and Sham groups, respectively. Day-night differences in blood pressure were significantly attenuated or reversed at the 500 and 1,500 mg x kg(-1) feed dose levels. Amlodipine had little or no effect upon the 24 h MAP level, long-term MAP variability, and only modestly reduced the MAP response to hexamethonium. These results demonstrate that amlodipine can reduce MAP variability independent of changes in the mean blood pressure level.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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) | 0.001 | 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