Second Messenger Changes of Atrial Natriuretic Factor and Brain Natriuretic Peptide in Kidneys of Cardiomyopathic Hamsters
Why this work is in the frame
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Bibliographic record
Abstract
The effects of natriuretic peptides in kidney are blunted in congestive heart failure (CHF). The aim of this study is to examine the changes of atrial natriuretic factor (ANF) and brain natriuretic peptide (BNP) second messenger productions in CHF. Experiments were conducted on 300-day-old normal and cardiomyopathic hamsters. Blood was collected for ANF measurement. cGMP accumulation studies were done in glomeruli upon ANF and BNP stimulation, and in inner medullary collecting duct (IMCD) cells upon ANF stimulation. Higher plasma ANF levels were found in cardiomyopathic hamsters (811.3 +/- 124.6 vs. 166.6 +/- 13 pg/ml, p < 0.01). ANF-stimulated cGMP accumulations in glomeruli and IMCD cells were higher in cardiomyopathic hamsters. Increased BNP-stimulated cGMP accumulations were also observed in cardiomyopathic hamster glomeruli. These results suggest that the renal hyporesponsiveness to natriuretic peptides in CHF in not due to attenuated ANF and BNP second messenger productions.
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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) | 0.001 | 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) | 0.000 | 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