Cardiolipin Metabolism and the Role it Plays in Heart Failure and Mitochondrial Supercomplex Formation
Bibliographic record
Abstract
Cardiolipin is a major membrane phospholipid in the mitochondria and is essential for cellular energy metabolism mediated through mitochondrial oxidative phosphorylation. Recent studies indicate that it plays a diverse role in cellular metabolism. Eukaryotic cardiolipin is synthesized de novo from phosphatidic acid via the cytidine-5'-diphosphate-1,2-diacyl-sn-glycerol pathway and is deacylated to monolysocardiolipin in order for it to be remodelled into the form that is observed in mitochondrial membranes. This resynthesis of deacylated cardiolipin from monolysocardiolipin occurs via the Barth Syndrome gene product tafazzin and acyllysocardiolipin acyltransferase-1, monolysocardiolipin acyltransferase-1 and the alpha subunit of trifunctional protein. Heart failure is a disease condition in which the amount and type of cardiolipin is altered. Several animal models have been generated to study the role of altered cardiolipin in heart failure. In many of these models loss of the tetralinoleoyl-cardiolipin species is observed during the development of the heart failure. In the doxycycline inducible short hairpin RNA tafazzin knock down mouse, loss of tetralinoleoyl-cardiolipin is associated with a mitochondrial bioenergetic disruption. Reduction in mitochondrial supercomplex formation and NADH dehydrogenase activity within these supercomplexes is observed. Modulation of CL fatty acyl composition may serve as a therapeutic strategy for the treatment of several pathologies including cardiac dysfunction.We propose that increasing cardiolipin may improve mitochondrial function and potentially serve as a therapy for diseases which exhibit mitochondrial dysfunction involving reduced cardiolipin.
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How this classification was reachedexpand
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.003 | 0.002 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".