Activation of Endothelial TRPV4 Exacerbates Myocardial Ischemia-Reperfusion Injury via Vascular Integrity Impairment
Bibliographic record
Abstract
BACKGROUND: Activation of transient receptor potential vanilloid 4 (TRPV4) exacerbates myocardial ischemia-reperfusion (IR) injury and is highly expressed in vascular endothelial cells. The role of TRPV4 in cardiac endothelial cells (CECs) during IR remains unclear. We hypothesized that endothelial TRPV4 contributes to postischemic vascular hyperpermeability and myocardial injury by modulating barrier function and apoptosis. METHODS: Myocardial IR was induced in C57BL/6 wild type, global TRPV4 knockout, and tamoxifen-inducible endothelial TRPV4 knockout cells, and tamoxifen-treated controls. Primary cultured CECs (passage 3) were subjected to hypoxia-reoxygenation and treated with the TRPV4 antagonist GSK2193874 or agonist GSK101790A. RESULTS: /protein kinase C (PKC)/Ras homolog family gene member A (RhoA)/myosin light chain (MLC) pathway and promoted apoptosis through mitogen-activated protein kinase-protein kinase B signalling. CONCLUSIONS: Activation of endothelial TRPV4 CECs exacerbates post-IR vascular hyperpermeability and myocardial injury by impairing barrier integrity and promoting apoptosis. Targeting endothelial TRPV4 might represent a promising therapeutic strategy to mitigate myocardial IR injury.
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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) | 0.000 | 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 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".