Oxidative stress induced platelet apoptosis/activation: alleviation by purified curcumin via ASK1-JNK/p-38 pathway
Bibliographic record
Abstract
Platelets are known for their indispensable role in haemostasis and thrombosis. During oxidative stress, alteration in platelet function contributes towards multiple health complications. To date, various synthesized compounds have shown antiplatelet activity however, their uses are still ambiguous as these compounds display multiple side effects. Commercially used curcumin is a mixture of curcumin, demethoxy curcumin and bisdemethoxy curcumin. Majority of the studies demonstrate the effect of crude curcumin lacking specific understanding on the effect of pure curcumin. Therefore, in this study, curcumin was purified from crude curcumin mixture and examined against oxidative stress-induced platelet apoptosis and activation. Purified curcumin restored the AAPH-induced platelet apoptotic markers like reactive oxygen species, intracellular calcium level, mitochondrial membrane potential, cardiolipin peroxidation, cytochrome c release from mitochondria to the cytosol, and phosphatidyl serine externalization. Further, it inhibited agonists-induced platelet activation and aggregation, demonstrating its antiplatelet activity. Western blot analysis confirms the protective effect of purified curcumin against oxidative stress-induced platelet apoptosis and activation via down regulation of MAPKs protein activation including ASK1, JNK, p-38. This suggests that purified curcumin could be a potential therapeutic bioactive molecule to treat oxidative stress-induced platelet activation, apoptosis, and associated complications.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| 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 | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".