Caloric Restriction Protects Mitochondrial Function with Aging in Skeletal and Cardiac Muscles
Why this work is in the frame
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Bibliographic record
Abstract
In skeletal muscles and heart in vitro complex IV activity is lower in young adult caloric restricted (CR) animals despite normal aerobic function in situ and in vivo. On the other hand, whereas markers of oxidative capacity decline 25% to 46% between 8 and 10 months and 35 months in ad libitum fed (AL) animals, in most muscles there is no decline in CR across the same absolute age (35 mo old) or relative age (35% survival rate) span and PGC-1alpha gene expression in gastrocnemius muscle declines more slowly with aging. The present results show that CR largely prevents the age-associated decline in mitochondrial function in heart and skeletal muscles, and suggest that this is secondary to a better-maintained drive on mitochondrial biogenesis.
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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