Vascular endothelial cell responses to increased hydrostatic pressure
Bibliographic record
Abstract
Endothelial cell responses to mechanical forces such as shear stress and tensile stress have been a subject of intense investigations. However, there is a substantial lack of studies addressing the effects/mechanism of hydrostatic pressure on endothelial cell function. It is known that pathologies such as venous congestion, compartment syndrome etc., are closely associated to the increased intravascular and/or interstitial hydrostatic pressure. In this study we examined vascular endothelial cell (HUVEC) responses to increased hydrostatic pressure (IHP). To this end, HUVEC were seeded into μ‐Slide IV (ibidi) channels and grown to confluence. Subsequently, one end of the channel was connected to the pressure monitor and the other end was connected to the cell culture medium reservoir, which was elevated to the height to induce 30mmHg hydrostatic pressure within the channel under conditions of “no flow”. HUVEC were exposed to the IHP (30mmHg) for 4 hrs in 5%CO 2 cell culture incubator at 37°C. Control HUVEC were cultured at ambient pressure (0mmHg) under the same conditions. The obtained results indicate that exposure of HUVEC to 30mmHg IHP results in: 1) prominent formation of F‐actin stress fibers (Phalloidin staining), 2) changes in VE‐cadherin junctional staining pattern, 3) induction of oxidative stress (DHR123 oxidation), 4) induction of apoptosis (caspase‐3 activity assay), and 5) increased neutrophil adhesion to HUVEC. These results indicate that increased hydrostatic pressure per se is a critical factor contributing to endothelial cell activation and dysfunction. Support or Funding Information Supported by the grant from Lawson Health Research Institute (IRF‐28‐16)
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 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".