International Academy of Cardiology Annual Scientific Sessions 2017. 22nd World Congress on Heart Disease. Vancouver, BC, Canada, July 14-16, 2017: Abstracts
Why this work is in the frame
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Bibliographic record
Abstract
Objectives: To investigate the effects of nutraceuticals on key processes associated with atherosclerosis in vitro and in vivo. Background: Atherosclerosis is an inflammatory disease of the vasculature in which macrophages play key roles at all stages and represent promising therapeutic targets. Unfortunately, current therapies against atherosclerosis are not fully effective and associated with other issues such as adverse side effects. In addition, there have been many failures on pharmaceutical agents identified from drug discovery programs. Nutraceuticals represent promising alternatives in the prevention and treatment of atherosclerosis but requires a thorough understanding of their actions together with the underlying mechanisms. The purpose of this study was to address this with emphasis on key macrophage processes associated with atherosclerosis. Methods: A combination of macrophage cell lines and primary cultures were used with gene expression analysed by atherosclerosis profiler arrays and real time quantitative PCR. Foam cell formation was investigated by following the uptake of fluorescently labeled modified LDL, intracellular lipid profiling and cholesterol efflux assays. Inflammasome activation was evaluated by following the release of interleukin (IL)-1beta using an ELISA and ROS production using a kit from Abcam. The effects in vivo were analysed in C57BL/6 mice fed a high fat diet. Results: The studies focused on polyphenols, flavanols and omega-6 polyunsaturated fatty acids. These either inhibited or had no effect on several key macrophage processes associated with atherosclerosis such as pro-inflammatory gene expression, the uptake of modified LDL, macropinocytosis, ROS production and the activation of the inflammasome. In addition, where analysed, the nutraceutical inhibited several atherosclerosis-associated markers in mice fed a high fat diet. The mechanisms underlying such actions will be presented. Conclusions: The studies provide new insights into the beneficial actions of nutraceuticals in atherosclerosis.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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